diff --git a/packages/contract-cli/README.md b/packages/contract-cli/README.md
index 3294e2ef3c4c39b0d590130b39fc7aba02e6a384..2a38d0efba6fa6a9d052e19c04a01a6b30ec7282 100755
--- a/packages/contract-cli/README.md
+++ b/packages/contract-cli/README.md
@@ -67,7 +67,7 @@ $ jsonql-contract config ./config.json
 
 ## Supported JS
 
-At the moment, we only support common js (`cjs`) style function exports:
+We only support common js (`cjs`) style function exports and ES6 import / export style (you need to pass the `jsType: ES` when you pass configuration options to the contract generator api)
 
 ```js
 /**
@@ -77,12 +77,27 @@ At the moment, we only support common js (`cjs`) style function exports:
  * @param {number} [param3=100] optional with default value of 100
  * @return {number} sum of all
  */
-module.exports = function(param1, params2, param3=100) {
+module.exports = function someResolver(param1, params2, param3=100) {
   return param1 + param2 + param3;
 }
 ```
 
-We are working on the ES2016 `es` and Typescript `ts` port at the moment.
+ES6 style:
+
+```js
+/**
+ * This is a query and we REQUIRED to write correct jsdoc since v1.2.x
+ * @param {number} param1
+ * @param {number} param2
+ * @param {number} [param3=100] optional with default value of 100
+ * @return {number} sum of all
+ */
+export default function someResolver(param1, param2, param3 = 100) {
+  return param1 + param2 + param3
+}
+
+```
+
 
 ## Resolvers folder structure
 
@@ -115,8 +130,10 @@ module.exports = async function(name, pos, options = {}) {
 }
 ```
 
-Your function can be an async methods, which is actually recommended.
-Because when we execute your code it will look (not exactly the same) the following
+Its recommended to use an `async` method as your resolver. Inside, you can return promise or use `async` `await`.
+
+Because when we execute your code it will look (not exactly the same) the following:
+
 ```js
 
   ctx.body = await processResult(opts);
@@ -132,11 +149,12 @@ For mutation, there will only be 2 parameters `payload` and `condition`
  * @param {object} condition
  * @return {boolean} true on success
  */
-module.exports = function(payload, condition) {}
+module.exports = function(payload, condition) {
+  // do your thing
+}
 ```
 
-To properly documented your mutation code for the client side validation, you should
-do the following comment:
+To properly documented your mutation code for the client side validation, you should do the following comment:
 
 ```js
 /**
@@ -147,7 +165,9 @@ do the following comment:
  * @param {number} condition.id to id the field
  * @return {boolean} true on success
  */
-module.exports = function(payload, condition) {}
+module.exports = function({ name }, { id }) {
+  // do something with your data
+}
 
 ```
 
@@ -215,14 +235,10 @@ We will take the jsdoc output and create an additional temporary contract file (
 - Update README about the `public` folder within each resolvers
 - ~~Add watch mode during development~~ - this is not activate until the other part is ready
 - ~~Add accept config file for easier to run in command line~~
+- add `Auth` part
+- add `Socket` part
+- add `File` part (not in the code base yet)
 
 ---
 
 MIT (c) [to1source](https://to1source.cn) & [NEWBRAN LTD](https://newbran.ch)
-
-
-"socket.io-client": "^2.2.0",
-"ts-node": "^8.3.0",
-"typescript": "^3.5.3",
-"ws": "^7.1.2",
-"@types/node": "^12.7.1",
diff --git a/packages/contract-cli/package.json b/packages/contract-cli/package.json
index 0f87579e8b455d107c96cfca7c64d69b900c88c6..9547cf9512dd43220ca1bb2d003f10f6d6ac3fe2 100755
--- a/packages/contract-cli/package.json
+++ b/packages/contract-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jsonql-contract",
-  "version": "1.7.15",
+  "version": "1.7.16",
   "description": "JS API / command line tool to generate the contract.json for jsonql",
   "main": "index.js",
   "files": [
@@ -25,7 +25,8 @@
     "test:watch": "DEBUG=jsonql-contract:* ava tests/watch.test.js",
     "test:config": "DEBUG=jsonql-contract:* ava tests/config-params.test.js",
     "test:custom": "DEBUG=jsonql-contract:* ava tests/custom-login.test.js",
-    "test:debug": "DEBUG=jsonql-contract* ava tests/koa-debug.test.js"
+    "test:debug": "DEBUG=jsonql* ava tests/koa-debug.test.js",
+    "test:split": "DEBUG=jsonql-contract* ava tests/split-task.test.js"
   },
   "keywords": [
     "jsonql",
@@ -41,17 +42,17 @@
     "jsonql-contract": "./cli.js"
   },
   "dependencies": {
-    "acorn": "^7.0.0",
+    "acorn": "^7.1.0",
     "debug": "^4.1.1",
     "chokidar": "^3.1.1",
-    "colors": "^1.3.3",
+    "colors": "^1.4.0",
     "fs-extra": "^8.1.0",
     "glob": "^7.1.4",
     "jsdoc-api": "^5.0.3",
     "jsonql-constants": "^1.8.3",
     "jsonql-errors": "^1.1.3",
     "jsonql-params-validator": "^1.4.11",
-    "jsonql-utils": "^0.6.10",
+    "jsonql-utils": "^0.6.12",
     "kefir": "^3.8.6",
     "lodash": "^4.17.15",
     "yargs": "^14.0.0"
diff --git a/packages/contract-cli/src/ast/jsdoc.js b/packages/contract-cli/src/ast/jsdoc.js
index 3e6beee43239315c96fb2db92b3e983192cb3892..aa9a2878b30b54921c09e46d16dc96c29824a5cc 100644
--- a/packages/contract-cli/src/ast/jsdoc.js
+++ b/packages/contract-cli/src/ast/jsdoc.js
@@ -181,7 +181,7 @@ const searchForParams = function(output) {
   // debug('searchForParams', result)
   if (result.name && !result.params) {
     debug(`params is no defined?`, detailOut(result))
-    debug(detailOut(output))
+    debug(`output`, detailOut(output))
     return search(output, result.name)
   }
   return result;
diff --git a/packages/contract-cli/src/generator/es-extra.js b/packages/contract-cli/src/generator/es-post-process.js
similarity index 96%
rename from packages/contract-cli/src/generator/es-extra.js
rename to packages/contract-cli/src/generator/es-post-process.js
index 9aa343559482aaefd3eb61462912132ffea471f4..4cf10b42ca5a2046ba269df41b38c5a6f8a22e6f 100644
--- a/packages/contract-cli/src/generator/es-extra.js
+++ b/packages/contract-cli/src/generator/es-post-process.js
@@ -86,7 +86,7 @@ const createResolverListFile = (contract, resolverDir) => {
  * @param {string} resolverDir where to put the files
  * @return {void} nothing
  */
-module.exports = function postProcess(sourceType, resolverDir, contract) {
+function esPostProcess(sourceType, resolverDir, contract) {
   debug('postProcess: sourceType:', sourceType, resolverDir)
   if (sourceType === MODULE_TYPE) {
     let src = join(__dirname , IMPORT_JS_TEMPLATE)
@@ -100,3 +100,5 @@ module.exports = function postProcess(sourceType, resolverDir, contract) {
   }
   return Promise.resolve(true)
 }
+
+module.exports = { esPostProcess }
diff --git a/packages/contract-cli/src/generator/files-op.js b/packages/contract-cli/src/generator/files-op.js
new file mode 100644
index 0000000000000000000000000000000000000000..bbb9c95fe15a7481bf795783b5065f942a927d23
--- /dev/null
+++ b/packages/contract-cli/src/generator/files-op.js
@@ -0,0 +1,69 @@
+// all the files related methods
+const { join } = require('path')
+const fsx = require('fs-extra')
+
+const { isContract } = require('./helpers')
+const { getDebug } = require('../utils')
+const debug = getDebug('generator:files')
+
+/**
+ * Just output the final contract to json file
+ * @param {string} dist where it should be written
+ * @param {object} contract the json to write
+ * @return {promise} resolve the contract
+ */
+function writeFileOut(dist, contract) {
+  return new Promise((resolver, rejecter) => {
+    fsx.outputJson(dist, contract, {spaces: 2}, err => {
+      if (err) {
+        return rejecter(err)
+      }
+      resolver(contract)
+    })
+  })
+}
+
+/**
+ * @param {object} config pass by the init call
+ * @param {string} dist where the contract file is
+ * @return {promise} resolve or reject if remove files failed
+ */
+const keepOrCleanContract = function(config, dist) {
+  return new Promise((resolver, rejecter) => {
+    if (config.alwaysNew === true) {
+      if (fsx.existsSync(dist)) {
+        debug('[@TODO] Found existing contract [%s]', dist)
+        fsx.remove(dist, err => {
+          if (err) {
+            return rejecter(err)
+          }
+          return resolver(true)
+        })
+      }
+    }
+    resolver(true)
+  })
+}
+
+/**
+ * check if there is already a contract.json file generated
+ * @param {object} config options
+ * @return {mixed} false on fail
+ */
+const isContractExisted = function(config) {
+  const { contractDir, outputFilename } = config;
+  const dist = join(contractDir, outputFilename)
+  if (fsx.existsSync(dist)) {
+    debug('[isContractExisted] found')
+    const contract = fsx.readJsonSync(dist)
+    return isContract(contract) ? contract : false;
+  }
+  return false;
+}
+
+// export
+module.exports = {
+  keepOrCleanContract,
+  isContractExisted,
+  writeFileOut
+}
diff --git a/packages/contract-cli/src/generator/files.js b/packages/contract-cli/src/generator/files.js
deleted file mode 100644
index fb11c1981dec327a98c8cbad3d23578fe7f0c75e..0000000000000000000000000000000000000000
--- a/packages/contract-cli/src/generator/files.js
+++ /dev/null
@@ -1,192 +0,0 @@
-// all the files related methods
-const { inspect } = require('util')
-const { join, basename } = require('path')
-const fsx = require('fs-extra')
-const glob = require('glob')
-const colors = require('colors/safe')
-const { merge } = require('lodash')
-// our modules
-const { RETURN_AS_JSON, MODULE_TYPE, SCRIPT_TYPE } = require('jsonql-constants')
-const getResolver = require('./get-resolver')
-const {
-  extractExtraProps,
-  mutateContract,
-  logToFile,
-  isContract
-} = require('./helpers')
-const {
-  astParser,
-  extractReturns,
-  extractParams,
-  isExpression
-} = require('../ast')
-const { getTimestamp, getDebug } = require('../utils')
-const postProcess = require('./es-extra')
-const debug = getDebug('generator:files')
-// this was lost when using as api using let
-let sourceType;
-
-/**
- * Use the first file to determine the source type NOT ALLOW MIX AND MATCH
- * @param {string} source the source file
- * @return {string} sourceType
- */
-const sourceFileType = source => {
-  if (sourceType) {
-    return sourceType;
-  }
-  if (source.indexOf('module.exports') > -1) {
-    sourceType = SCRIPT_TYPE
-  } else if (source.indexOf('export default')) {
-    sourceType = MODULE_TYPE
-  }
-  if (sourceType) {
-    // debug(`parsing ${sourceType}`)
-    return sourceType;
-  }
-  throw new Error(`Can not determine the source file type!`)
-}
-
-/**
- * process the files
- * @param {string} inDir base directory
- * @param {string} fileType the ext
- * @param {array} files list of files
- * @param {object} config to control the inner working
- * @return {object} promise that resolve all the files key query / mutation
- */
-const processFiles = function(inDir, fileType, files, config) {
-  let _sourceType;
-  const fn = getResolver(inDir, fileType, config)
-  return files.map( fn )
-    .filter(obj => obj.ok)
-    .map(obj => {
-      const { type, name, file, public, namespace } = obj;
-      const source = fsx.readFileSync(file, 'utf8').toString()
-      // we need to automatically detect if this is a module files or script
-      _sourceType = sourceFileType(source)
-      const astOpt = { sourceType: _sourceType }
-      // parsing the file
-      const result = astParser(source, astOpt)
-
-      logToFile(config.logDirectory, [type, name].join('-'), result)
-
-      const baseParams = result.body.filter(isExpression).map(extractParams).filter(p => p)
-      const { description, params, returns } = extractExtraProps(config, result, source, name)
-      // return
-      return {
-        [type]: {
-          [name]: {
-            namespace,
-            public, // mark if this is a public accessible method or not
-            file,
-            description,
-            params: merge([], baseParams[0], params), // merge array NOT OBJECT
-            returns: returns // merge({}, takeDownArray(returns), returns)
-          }
-        }
-      };
-    })
-    .reduce(merge, {
-      query: {},
-      mutation: {},
-      auth: {},
-      timestamp: getTimestamp(),
-      sourceType: _sourceType
-    })
-}
-
-/**
- * get list of files and put them in query / mutation
- * @param {string} inDir diretory
- * @param {object} config pass config to the underlying method
- * @param {mixed} fileType we might do a ts in the future
- * @return {object} query / mutation
- */
-const readFilesOutContract = function(inDir, config, fileType) {
-  return new Promise((resolver, rejecter) => {
-    glob(join(inDir, '**', ['*', fileType].join('.')), (err, files) => {
-      if (err) {
-        return rejecter(err)
-      }
-      resolver(
-        processFiles(inDir, fileType, files, config)
-      )
-    })
-  })
-}
-
-/**
- * @param {object} config pass by the init call
- * @param {string} dist where the contract file is
- * @return {void} nothing to return
- */
-const keepOrCleanContract = function(config, dist) {
-  // @TODO we might want to keep the file based on the configuration
-  if (fsx.existsSync(dist) && config.alwaysNew === true) {
-    debug('[@TODO] Found existing contract [%s]', dist)
-    return fsx.removeSync(dist)
-  }
-}
-
-/**
- * check if there is already a contract.json file generated
- * @param {object} config options
- * @return {mixed} false on fail
- */
-const isContractExisted = function(config) {
-  const { contractDir, outputFilename } = config;
-  const dist = join(contractDir, outputFilename)
-  if (fsx.existsSync(dist)) {
-    debug('[isContractExisted] found')
-    const contract = fsx.readJsonSync(dist)
-    return isContract(contract) ? contract : false;
-  }
-  return false;
-}
-
-/**
- * Generate the final contract output to file
- * @param {object} config output directory
- * @param {object} contract processed result
- * @param {boolean|object} [rawData=false] the raw contract data for ES6 create files
- * @return {boolean} true on success
- */
-const generateOutput = function(config, contract, rawData = false) {
-  // this return a promise interface
-  return new Promise((resolver, rejecter) => {
-    const { outputFilename, contractDir, resolverDir } = config;
-
-    const dist = join(contractDir, outputFilename)
-    // keep or remove the existing contract file
-    keepOrCleanContract(config, dist)
-
-    const finalContract = mutateContract(config, contract)
-
-    if (!finalContract) {
-      throw new Error('[generateOutput] finalContract is empty?')
-    }
-    // now write out the file
-    fsx.outputJson(dist, finalContract, {spaces: 2}, err => {
-      if (err) {
-        return rejecter(err)
-      }
-      // new for ES6 Module
-      postProcess(sourceType, resolverDir, rawData || finalContract)
-        .then(() => {
-          // reset the sourceType
-          sourceType = undefined;
-          // output
-          resolver(
-            config.returnAs === RETURN_AS_JSON ? finalContract : dist
-          )
-        })
-    })
-  })
-}
-// export
-module.exports = {
-  generateOutput,
-  readFilesOutContract,
-  isContractExisted
-}
diff --git a/packages/contract-cli/src/generator/generate-output.js b/packages/contract-cli/src/generator/generate-output.js
new file mode 100644
index 0000000000000000000000000000000000000000..bb29a9b4ad12065ebbfe0be628afeef16191a56d
--- /dev/null
+++ b/packages/contract-cli/src/generator/generate-output.js
@@ -0,0 +1,31 @@
+// the final step to generate output
+const { RETURN_AS_JSON } = require('jsonql-constants')
+const { keepOrCleanContract, isContractExisted, writeFileOut } = require('./files-op')
+const { esPostProcess } = require('./es-post-process')
+const { mutateContract } = require('./helpers')
+const { join } = require('path')
+/**
+ * Generate the final contract output to file
+ * @param {string} sourceType what type of file we are dealing with
+ * @param {object} config output directory
+ * @param {object} contract processed result
+ * @param {boolean|object} [rawData=false] the raw contract data for ES6 create files
+ * @return {boolean} true on success
+ */
+const generateOutput = function(sourceType, config, contract, rawData = false) {
+  // this return a promise interface
+  const { outputFilename, contractDir, resolverDir } = config;
+  const dist = join(contractDir, outputFilename)
+    // keep or remove the existing contract file
+  return keepOrCleanContract(config, dist)
+      .then(() => mutateContract(config, contract))
+      .then(finalContract => (
+        writeFileOut(dist, finalContract)
+          .then(contract => (
+            esPostProcess(sourceType, resolverDir, rawData || contract)
+              .then(() => config.returnAs === RETURN_AS_JSON ? finalContract : dist)
+          ))
+      ))
+}
+
+module.exports = { generateOutput }
diff --git a/packages/contract-cli/src/generator/get-resolver.js b/packages/contract-cli/src/generator/get-resolver.js
index 7a4765572459e85c51b4418dd1926e12ed71502c..ed0235d2bf189b6724201bee83a8069a5bb5cfe9 100644
--- a/packages/contract-cli/src/generator/get-resolver.js
+++ b/packages/contract-cli/src/generator/get-resolver.js
@@ -1,8 +1,14 @@
 // this is the HEART of this module
+const fsx = require('fs-extra')
 const { join, basename } = require('path')
-const { compact } = require('lodash')
-const { INDEX_KEY } = require('jsonql-constants')
+const { compact, merge } = require('lodash')
 const {
+  MODULE_TYPE,
+  SCRIPT_TYPE,
+  INDEX_KEY
+} = require('jsonql-constants')
+const {
+  logToFile,
   inTypesArray,
   isAuthType,
   checkIfIsPublic,
@@ -10,15 +16,109 @@ const {
   addPublicKey,
   packOutput
 } = require('./helpers')
-const { getDebug } = require('../utils')
+const {
+  astParser,
+  extractReturns,
+  extractParams,
+  isExpression,
+  getJsdoc
+} = require('../ast')
+const { getDebug, getTimestamp } = require('../utils')
 const debug = getDebug('generator:get-resolvers')
 
+/**
+ * There is a potential bug here if the first file is not a resolver than this will failed!
+ * Use the first file to determine the source type NOT ALLOW MIX AND MATCH
+ * @param {string} source the path to the file
+ * @return {string} sourceType
+ */
+const sourceFileType = src => {
+  const source = fsx.readFileSync(src, 'utf8').toString()
+  if (source.indexOf('module.exports') > -1) {
+    return SCRIPT_TYPE
+  } else if (source.indexOf('export default') > -1) {
+    return MODULE_TYPE
+  }
+  return false;
+}
 
 /**
- * breaking out the getResolver, this one will able to get normal or when
- * the enableAuth enable to search for files
- *
+ * try to find out the resourceType until we find it
+ * @param {array} objs array of objs
+ * @return {object} add the resourceType to the object
  */
+function getSourceType(objs) {
+  let sourceType;
+  let ctn = objs.length;
+  for (let i = 0; i < ctn; ++i) {
+    if (!sourceType) {
+      resourceType = sourceFileType(objs[i].file)
+      if (resourceType) {
+        return resourceType
+      }
+    }
+  }
+  throw new Error(`Can not determine the resourceType!`)
+}
+
+/**
+ * Breaking out from the getResolver because we need to hook another method into it
+ * @param {string} baseFile the path to the found file
+ * @param {string} inDir the base path
+ * @param {string} fileType ext
+ * @param {object} config options to use
+ * @return {object} with {ok:true} to id that is a resolver
+ */
+const checkResolver = (indexFile, inDir, fileType, config) => (baseFile) => {
+  const failed = {ok: false};
+  const fileParts = compact(baseFile.replace(inDir, '').toLowerCase().split('/'))
+  const ctn = fileParts.length;
+  const type = fileParts[0];
+  // we ignore all the fileParts on the root level
+  if (fileParts.length === 1) {
+    return failed;
+  }
+  const ext = '.' + fileType;
+  // process fileParts within the folder of query, mutation, auth
+  const fileName = basename(fileParts[1], ext)
+  // const evt = basename(fileParts[1]);
+  switch (ctn) {
+    case 4: // this will definely inside the public folder
+      if (inTypesArray(type)) {
+        // we need to shift down one level to get the filename
+        const fileName4 = basename(fileParts[2], ext)
+        let ok = (fileParts[ctn - 1] === indexFile)
+        if (checkIfIsPublic(fileParts, config)) {
+          // debug(4, _fileName, fileParts);
+          return packOutput(type, fileName4, ok, baseFile, true, config)
+        } else if (checkIfIsPrivate(fileParts, config)) {
+          return packOutput(type, fileName4, ok, baseFile, false, config)
+        }
+      }
+      // make sure it always terminate here
+      return failed;
+    case 3: // this could be inside the public folder
+      if (inTypesArray(type) || isAuthType(type, fileName, config)) {
+        let isPublic = checkIfIsPublic(fileParts, config)
+        let isPrivate = checkIfIsPrivate(fileParts, config)
+        let lastFile = fileParts[ctn - 1];
+        let ok = lastFile === indexFile;
+        let fileName3 = fileName;
+        if (isPublic || isPrivate) {
+          ok = true;
+          fileName3 = lastFile.replace(ext, '')
+        }
+        return packOutput(type, fileName3, ok, baseFile, isPublic, config)
+      }
+    case 2:
+      if (inTypesArray(type) || isAuthType(type, fileName, config)) {
+        // debug(2, type, fileName, fileParts);
+        return packOutput(type, fileName, true, baseFile, false, config)
+      }
+    default:
+      return failed;
+  }
+}
 
 /**
  * filter to get which is resolver or not
@@ -27,59 +127,67 @@ const debug = getDebug('generator:get-resolvers')
  * @param {object} config options to use
  * @return {function} work out if it's or not
  */
-const getResolver = function(inDir, fileType, config) {
+function getResolver(inDir, fileType, config) {
   const indexFile = [INDEX_KEY, fileType].join('.')
   // return a function here
-  return baseFile => {
-    const failed = {ok: false};
-    const files = compact(baseFile.replace(inDir, '').toLowerCase().split('/'))
-    const ctn = files.length;
-    const type = files[0];
-    // we ignore all the files on the root level
-    if (files.length === 1) {
-      return failed;
-    }
-    const ext = '.' + fileType;
-    // process files within the folder of query, mutation, auth
-    const fileName = basename(files[1], ext)
-    // const evt = basename(files[1]);
-    switch (ctn) {
-      case 4: // this will definely inside the public folder
-        if (inTypesArray(type)) {
-          // we need to shift down one level to get the filename
-          const fileName4 = basename(files[2], ext)
-          let ok = (files[ctn - 1] === indexFile)
-          if (checkIfIsPublic(files, config)) {
-            // debug(4, _fileName, files);
-            return packOutput(type, fileName4, ok, baseFile, true, config)
-          } else if (checkIfIsPrivate(files, config)) {
-            return packOutput(type, fileName4, ok, baseFile, false, config)
-          }
-        }
-        // make sure it always terminate here
-        return failed;
-      case 3: // this could be inside the public folder
-        if (inTypesArray(type) || isAuthType(type, fileName, config)) {
-          let isPublic = checkIfIsPublic(files, config)
-          let isPrivate = checkIfIsPrivate(files, config)
-          let lastFile = files[ctn - 1];
-          let ok = lastFile === indexFile;
-          let fileName3 = fileName;
-          if (isPublic || isPrivate) {
-            ok = true;
-            fileName3 = lastFile.replace(ext, '')
-          }
-          return packOutput(type, fileName3, ok, baseFile, isPublic, config)
-        }
-      case 2:
-        if (inTypesArray(type) || isAuthType(type, fileName, config)) {
-          // debug(2, type, fileName, files);
-          return packOutput(type, fileName, true, baseFile, false, config)
-        }
-      default:
-        return failed;
+  return checkResolver(indexFile, inDir, fileType, config)
+}
+
+/**
+ * move from the process-files, the final step to process the resolver files to contract
+ * The parameter were pre-processed by the getResolver method
+ * @param {string} type of resolver
+ * @param {string} name of resolver
+ * @param {string} file resolver
+ * @param {boolean} public or private method
+ * @param {string} namespace if this is a socket
+ * @param {string} sourceType module or script
+ * @return {object} group together for merge
+ */
+function processResolverToContract(type, name, file, public, namespace, sourceType) {
+  // how do I change this to non-block instead?
+  const source = fsx.readFileSync(file, 'utf8').toString()
+  // parsing the file
+  const result = astParser(source, { sourceType })
+
+  // logToFile(config.logDirectory, [type, name].join('-'), result)
+  // get params @BUG the error happens here?
+  const baseParams = result.body.filter(isExpression).map(extractParams).filter(p => p)
+  const { description, params, returns } = getJsdoc(source, name)
+  // return
+  return {
+    [type]: {
+      [name]: {
+        namespace,
+        public, // mark if this is a public accessible method or not
+        file,
+        description,
+        params: merge([], baseParams[0], params), // merge array NOT OBJECT
+        returns: returns // merge({}, takeDownArray(returns), returns)
+      }
     }
   }
 }
+
+/**
+ * just return the base object for constructing the contract
+ * @param {string} sourceType module or script
+ * @return {object} the contract base
+ */
+function getContractBase(sourceType) {
+  return {
+    query: {},
+    mutation: {},
+    auth: {},
+    timestamp: getTimestamp(),
+    sourceType: sourceType
+  }
+}
+
 // export
-module.exports = getResolver;
+module.exports = {
+  getResolver,
+  getSourceType,
+  getContractBase,
+  processResolverToContract
+}
diff --git a/packages/contract-cli/src/generator/hamsters/explain-resolver.js b/packages/contract-cli/src/generator/hamsters/explain-resolver.js
new file mode 100644
index 0000000000000000000000000000000000000000..5effde7c9e5294565864af0894a3c607b594b2e3
--- /dev/null
+++ b/packages/contract-cli/src/generator/hamsters/explain-resolver.js
@@ -0,0 +1,18 @@
+// this will take the last preprocess output then pass to the jsdoc acron to
+// get the part for the contract
+const { getJsdoc } = require('../ast/jsdoc')
+
+/**
+ * The process listener
+ * @param {object} payload the complete payload
+ * @param {number} payload.idx the index of this process
+ * @param {string} payload.processor the name of the processor
+ * @param {array} payload.args the argument pass to the processor
+ * @return {void} just use process.send back the idx, processor and result
+ */
+process.on('message', ({ idx, processor, args }) => {
+  Reflect.apply(fn[processor], null, args)
+    .then(result => {
+      process.send({ idx, processor, result})
+    })
+})
diff --git a/packages/contract-cli/src/generator/hamsters/preprocess-resolver.js b/packages/contract-cli/src/generator/hamsters/preprocess-resolver.js
new file mode 100644
index 0000000000000000000000000000000000000000..6b3707c720779bb01430edc8475b54a5eedcedf6
--- /dev/null
+++ b/packages/contract-cli/src/generator/hamsters/preprocess-resolver.js
@@ -0,0 +1,16 @@
+// this will take the input files list then check if this is a resolver
+
+/**
+ * The process listener
+ * @param {object} payload the complete payload
+ * @param {number} payload.idx the index of this process
+ * @param {string} payload.processor the name of the processor
+ * @param {array} payload.args the argument pass to the processor
+ * @return {void} just use process.send back the idx, processor and result
+ */
+process.on('message', ({ idx, processor, args }) => {
+  Reflect.apply(fn[processor], null, args)
+    .then(result => {
+      process.send({ idx, processor, result})
+    })
+})
diff --git a/packages/contract-cli/src/generator/helpers.js b/packages/contract-cli/src/generator/helpers.js
index be472f92463f1155f014711fbe93e4d6e4672e64..a65bf0ced425470708faaf162debe3fc931d7494 100644
--- a/packages/contract-cli/src/generator/helpers.js
+++ b/packages/contract-cli/src/generator/helpers.js
@@ -143,26 +143,6 @@ const takeDownArray = function(arr) {
   return arr;
 }
 
-/**
- * Control if we want to use jsdoc or not
- * @param {object} config configuration props
- * @param {object} result process result
- * @param {string} source from function
- * @param {string} name of function
- * @return {object} with description, params, returns
- */
-function extractExtraProps(config, result, source, name) {
-  // we force to use jsdoc api from v1.4.5
-  return getJsdoc(source, name)
-  /*
-  if (config.useDoc) {}
-  return {
-    description: false,
-    params: [],
-    returns: result.body.filter(isExpression).map(tree => extractReturns(tree.expression)).filter(r => r)
-  }; */
-}
-
 /**
  * V1.7.1 always add the sourceType for reference
  * inject extra to the contract.json file using the config
@@ -203,7 +183,7 @@ module.exports = {
   packOutput,
 
   takeDownArray,
-  extractExtraProps,
+  
   mutateContract,
   logToFile,
 
diff --git a/packages/contract-cli/src/generator/index.js b/packages/contract-cli/src/generator/index.js
index a25253f79412b295773ac37278a0dfc77fd632c9..3bc41c1fc0f429996b2bd80d58ee6ffe76ee8f59 100644
--- a/packages/contract-cli/src/generator/index.js
+++ b/packages/contract-cli/src/generator/index.js
@@ -9,13 +9,13 @@
 const { merge } = require('lodash')
 const colors = require('colors/safe')
 const debug = require('debug')('jsonql-contract:generator')
+
 const { EXT, PUBLIC_CONTRACT_FILE_NAME } = require('jsonql-constants')
-const publicContractGenerator = require('../public-contract')
-const {
-  readFilesOutContract,
-  generateOutput,
-  isContractExisted
-} = require('./files')
+
+const { publicContractGenerator } = require('../public-contract')
+const { readFilesOutContract } = require('./read-files-out-contract')
+const { generateOutput } = require('./generate-output')
+const { isContractExisted } = require('./files-op')
 
 let ctn = 0;
 /**
@@ -46,6 +46,7 @@ const banner = config => {
  */
 const callPublicGenerator = (config, contract) => (
   generateOutput(
+    contract.sourceType,
     merge({}, config, { outputFilename: PUBLIC_CONTRACT_FILE_NAME }),
     publicContractGenerator(config, contract),
     contract // <-- this is when ES6 module require to generate import export files
@@ -60,11 +61,12 @@ const callPublicGenerator = (config, contract) => (
 const generateNewContract = (config) => {
   const { resolverDir, contractDir } = config;
   return readFilesOutContract(resolverDir, config, config.ext || EXT)
-    .then(contract => {
+    .then(([sourceType, contract]) => {
       if (config.public === true) {
+        // we can get the sourceType from the contract
         return callPublicGenerator(config, contract)
       }
-      return generateOutput(config, contract)
+      return generateOutput(sourceType, config, contract)
     })
 }
 
diff --git a/packages/contract-cli/src/generator/process-file.js b/packages/contract-cli/src/generator/process-file.js
new file mode 100644
index 0000000000000000000000000000000000000000..f02af34c495b66166f2aa3070bde40d49358f9e1
--- /dev/null
+++ b/packages/contract-cli/src/generator/process-file.js
@@ -0,0 +1,111 @@
+// this is the heart of the process that pass the resolver file into the AST to understand it
+const { join, basename } = require('path')
+const { merge } = require('lodash')
+const {
+  getResolver,
+  getSourceType,
+  getContractBase,
+  processResolverToContract
+} = require('./get-resolver')
+const { splitTask } = require('./split-task')
+// const { logToFile } = require('./helpers')
+// const { astParser, extractReturns, extractParams, isExpression, getJsdoc } = require('../ast')
+const { getDebug } = require('../utils')
+const debug = getDebug('process-file')
+// this was lost when using as api using let
+
+/**
+ * wrapper method to call the pre splitTask
+ *
+ */
+function callPreSplitTask(_files, _preprocessor) {
+  return splitTask('pre', {
+    files: _files,
+    preprocessor: _preprocessor
+  })
+}
+
+/**
+ * wrapper method to call the process splitTask
+ *
+ */
+function callPostSplitTask(_sourceType, _files, _config) {
+  return splitTask('process', {
+    sourceType: _sourceType,
+    files: _files,
+    config: _config
+  })
+}
+
+/**
+ * Take the map filter out to get the clean resolver objects
+ * @param {array} _files files to process
+ * @param {function} preprocessor for capture the resolver
+ * @return {array} resolver objects
+ */
+function processFilesAction(_files, _preprocessor) {
+  return callPreSplitTask(_files, _preprocessor)
+    .then(result => (
+        result || _files.map( _preprocessor )
+             .filter( obj => obj.ok )
+             .reduce( (n, m) => [...n, m], [])
+    ))
+}
+
+/**
+ * This is the step one to parallel process the resolver file
+ * @param {string} inDir where the resolverDir is
+ * @param {string} fileType extension to expect
+ * @param {array} _files to process
+ * @param {object} config options
+ * @return {array} of preprocessed filtered resolver
+ */
+function preprocessResolverFile(inDir, fileType, _files, config) {
+  const preprocessor = getResolver(inDir, fileType, config)
+
+  return processFilesAction(_files, preprocessor)
+    .then(objs => [
+      getSourceType(objs),
+      objs
+    ])
+}
+
+/**
+ * process the files
+ * @param {string} inDir base directory
+ * @param {string} fileType the ext
+ * @param {array} _files list of files
+ * @param {object} config to control the inner working
+ * @return {object} promise that resolve all the files key query / mutation
+ */
+function processResolverFile(sourceType, _files, config) {
+  return callPostSplitTask(sourceType, _files, config)
+    .then(result => (
+      result || _files
+          .map(({ type, name, file, public, namespace }) => (
+            processResolverToContract(type, name, file, public, namespace, resourceType)
+          ))
+          .reduce(merge, getContractBase(sourceType))
+    ))
+}
+
+/**
+ * when enableAuth !== true then we should remove the auth related methods
+ * @param {object} contract the generate contract json
+ * @param {object} config options
+ * @return {object} contract remove the auth if enableAuth !== true
+ */
+function postProcessResolverFile(contract, config) {
+  if (config.enableAuth !== true) {
+    contract.auth = {}
+  }
+
+  return contract;
+}
+
+// export
+module.exports = {
+  preprocessResolverFile,
+  processResolverFile,
+  postProcessResolverFile
+}
diff --git a/packages/contract-cli/src/generator/read-files-out-contract.js b/packages/contract-cli/src/generator/read-files-out-contract.js
new file mode 100644
index 0000000000000000000000000000000000000000..e9bc12817246818e7a4c5c70cbe1049b16b1f0b7
--- /dev/null
+++ b/packages/contract-cli/src/generator/read-files-out-contract.js
@@ -0,0 +1,63 @@
+// Here is the point where we need to split to load to different CPU
+const { join, basename } = require('path')
+const os = require('os')
+const glob = require('glob')
+const colors = require('colors/safe')
+const { EXT } = require('jsonql-constants')
+
+const {
+  preprocessResolverFile,
+  processResolverFile
+} = require('./process-file')
+const { getDebug } = require('../utils')
+
+const debug = getDebug('read-files-out-contract')
+
+/**
+ * just return the list of files for process
+ * @param {string} inDir the path to the resolver directory
+ * @param {string} [fileType=EXT] the file extension
+ * @return {promise} resolve the files array on success or reject with error
+ */
+function getResolverFiles(inDir, fileType = EXT) {
+  const pat = join(inDir, '**', ['*', fileType].join('.'))
+  return new Promise((resolver, rejecter) => {
+    glob(pat, (err, files) => {
+      if (err) {
+        debug(`File read error!`, err)
+        return rejecter(err)
+      }
+      resolver(files)
+    })
+  })
+}
+
+/**
+ * get list of files and put them in query / mutation
+ * @param {string} inDir diretory
+ * @param {object} config pass config to the underlying method
+ * @param {mixed} fileType we might do a ts in the future
+ * @return {object} query / mutation
+ */
+function readFilesOutContract(inDir, config, fileType) {
+  let timestart = Date.now()
+  return getResolverFiles(inDir, fileType)
+    .then(_files => (
+      preprocessResolverFile(inDir, fileType, _files, config)
+    ))
+    .then(result => {
+      const [sourceType, files] = result;
+      return processResolverFile(sourceType, files, config)
+              .then(contract => [sourceType, contract])
+    })
+    .then(result => {
+      let timeend = Date.now() - timestart
+      debug('Time it took:', colors.yellow(timeend))
+      return result
+    })
+}
+
+module.exports = {
+  getResolverFiles, // export for testing
+  readFilesOutContract
+}
diff --git a/packages/contract-cli/src/generator/split-task.js b/packages/contract-cli/src/generator/split-task.js
new file mode 100644
index 0000000000000000000000000000000000000000..d8031c00c9a6455cfd6f212733c890072e673d20
--- /dev/null
+++ b/packages/contract-cli/src/generator/split-task.js
@@ -0,0 +1,113 @@
+// this will be responsible to split the task and run parallel computing to speed the task
+const os = require('os')
+const { fork } = require('child_process')
+const { join } = require('path')
+const { chainPromises } = require('jsonql-utils')
+
+const { getDebug } = require('../utils')
+
+const debug = getDebug('split-task')
+const basePath = join(__dirname, 'hamsters')
+
+/**
+ * test if we have enough cpu slots
+ * @return {int} available cpu slots
+ */
+function getSlots() {
+  return os.cpus().length - 1;
+}
+
+/**
+ * actually calling the task and return a promise that resolve result
+ * @param {string} taskPath file name of the method
+ * @param {*} payload to send to the task
+ * @return {promise} resolve the result or reject with error
+ */
+function executeTask(taskPath, payload) {
+  const ps = fork(join(basePath, `${taskPath}.js`))
+  return new Promise((resolver, rejecter) => {
+    ps.send( payload )
+    ps.on('message', result => {
+      resolver(result)
+    })
+    ps.on('error', err => {
+      rejecter(err)
+    })
+  })
+}
+
+/**
+ * create the task matrix
+ * @param {int} slots cpu slots
+ * @param {string} taskPath file name of the method
+ * @param {array} payloads array
+ * @param {boolean} returnType arry of object
+ * @return {promise} resolve the final result
+ */
+function createTask(slots, taskPath, payloads, returnType = true) {
+  let taskCtn = payloads.length;
+  let matrix = []
+  let ctn = Math.ceil(taskCtn/slots)
+  for (let i=0; i<ctn; ++i) {
+    let begin = i * slots;
+    let end = begin + slots;
+    if (end >= taskCtn) {
+      end = taskCtn;
+    }
+    matrix.push(
+      chainPromises(payloads.slice(begin, end).map(payload => {
+        executeTask(taskPath, payload)
+      }), returnType)
+    )
+  }
+  // now futher process the final matrix
+  return chainPromises(matrix, returnType)
+}
+
+/**
+ * The top level export method to get the task to do and array of payload
+ * @param {string} taskName the name of the task
+ * @param {array} payload array of payload
+ * @return {promise} resolve the final result
+ */
+function splitTask(taskName, payload) {
+  const slots = getSlots()
+  if ((slots > 0) === false) {
+    console.error(`Sorry your system does NOT support multi processing!`)
+    return false;
+  }
+  let returnType = true;
+  let scriptName, postProcessor;
+  let payloads = [] // prepare payload
+  switch (taskName) {
+    case 'process':
+
+      return Promise.resolve(false) // stop it for testing
+
+      scriptName = 'explain-resolver'
+      let { sourceType, config } = payload;
+      payloads = payload.files.map(file => ({ sourceType, file, config }))
+      postProcessor = result => result;
+    break;
+    case 'pre':
+      returnType = false; // default is array
+      scriptName = 'preprocess-resolver'
+      // here we need to get a preprocessor, then we don't need to keep calling it
+      let { files, preprocessor } = payload;
+      payloads = files.map(file => ({ file, preprocessor }))
+      postProcessor = result => {
+        // run the filter here
+        return result;
+      }
+    break;
+    default:
+      throw new Error(`Unknown task ${taskName}`)
+  }
+  // finally return
+  // return chainFns(createTask, postProcessor)(slots, scriptName, payloads)
+  return createTask(slots, scriptName, payloads, returnType)
+          .then(postProcessor)
+}
+
+// export
+module.exports = { splitTask }
diff --git a/packages/contract-cli/src/public-contract/index.js b/packages/contract-cli/src/public-contract/index.js
index cd6a602b9d242d6f537aa4f917cf66533427fbb5..66c483ea85122c29e26d4bce1f781a51b999ca37 100644
--- a/packages/contract-cli/src/public-contract/index.js
+++ b/packages/contract-cli/src/public-contract/index.js
@@ -86,7 +86,7 @@ function getExpired(config, contractJson) {
  * @param {object} contractJson the raw json file
  * @return {string} json
  */
-module.exports = function publicContractGenerator(config, contractJson) {
+function publicContractGenerator(config, contractJson) {
   const contractDir = config.contractDir;
   if (!contractDir) {
     throw new JsonqlError('Contract directory is undefined!')
@@ -109,3 +109,5 @@ module.exports = function publicContractGenerator(config, contractJson) {
     config
   );
 }
+
+module.exports = { publicContractGenerator }
diff --git a/packages/contract-cli/tests/koa-debug.test.js b/packages/contract-cli/tests/koa-debug.test.js
index 81305157a526ad82f9dc6c3ff2d4bdfdce48cd31..e0345b84b1b7046bd3373c947bd8c9d8f9dc03c4 100644
--- a/packages/contract-cli/tests/koa-debug.test.js
+++ b/packages/contract-cli/tests/koa-debug.test.js
@@ -5,6 +5,7 @@ const { inspect } = require('util')
 const fsx = require('fs-extra')
 const debug = require('debug')('jsonql-contract:koa-debugging')
 
+const contractApi = require('../index')
 const { contractGenerator } = require('../extra')
 
 const resolverDir = join(__dirname, 'fixtures', 'koa-resolvers')
@@ -14,7 +15,19 @@ test.after(t => {
   fsx.removeSync(contractDir)
 })
 
-test(`It should able to generate a contract without error`, async t => {
+test(`First test the contract api directly`, async t => {
+  const result = await contractApi({
+    resolverDir,
+    contractDir,
+    returnAs: 'json'
+  })
+
+  debug(inspect(result, false, null))
+
+  t.truthy(result.mutation && result.mutation.updateMsService)
+})
+
+test.only(`It should able to generate a contract without error`, async t => {
   const result = await contractGenerator({
     resolverDir,
     contractDir,
@@ -23,5 +36,5 @@ test(`It should able to generate a contract without error`, async t => {
 
   debug(inspect(result, false, null))
 
-  t.truthy(result.query)
+  t.truthy(result.mutation && result.mutation.updateMsService)
 })
diff --git a/packages/contract-cli/tests/split-task.test.js b/packages/contract-cli/tests/split-task.test.js
new file mode 100644
index 0000000000000000000000000000000000000000..ebf6bc27f4604686f7127fdbe7f11466945b00f0
--- /dev/null
+++ b/packages/contract-cli/tests/split-task.test.js
@@ -0,0 +1,66 @@
+// TDD to build the split task with cpu load caculcation and multiple
+// array of promises
+const test = require('ava')
+const { chainPromises } = require('jsonql-utils')
+const os = require('os')
+const debug = require('debug')('jsonql-contract:test:split')
+// import method frr testing
+const { getResolverFiles }
+
+
+function randomIntFromInterval(min, max) { // min and max included
+  return Math.floor(Math.random() * (max - min + 1) + min);
+}
+
+test.before(t => {
+  const ctn = os.cpus().length - 1;
+  t.context.ctn = ctn;
+  // create 100 fake taskes
+  let taskes = []
+  for (let i = 0; i < 100; ++i) {
+    taskes.push(() => {
+      let seed = randomIntFromInterval(1, 10)
+      return new Promise(resolver => {
+        setTimeout(() => {
+          resolver({
+            ['msg' + i]: `This is task #${i} with random num ${seed}`
+          })
+        }, 100*seed)
+      })
+    })
+  }
+  t.context.taskes = taskes
+})
+
+test.cb(`Should able to create multple array based on the cpu available`, t => {
+  t.plan(1)
+
+  debug(`available task slot is ${t.context.ctn}`)
+
+  let ctn = t.context.ctn;
+  let taskes = t.context.taskes;
+  let taskCtn = taskes.length;
+
+  let matrix = [];
+  let slots = Math.ceil(taskCtn / ctn)
+
+  debug(`Total slot is ${slots}`)
+
+  let i = 0;
+  for (let j = 0; j < slots; ++j) {
+    let begin = j * ctn;
+    let end = begin + ctn;
+    if (end >= taskCtn) {
+      end = taskCtn;
+    }
+    matrix.push(
+      chainPromises(taskes.slice(begin, end).map(fn => fn()), {})
+    )
+  }
+  chainPromises(matrix)
+    .then(result => {
+      debug(result)
+      t.truthy( Array.isArray(result) )
+      t.end()
+    })
+})
diff --git a/packages/node-client/package.json b/packages/node-client/package.json
index 25bc255b12f7f7c7f141100de3dd5b027954c188..52ff4e1f19a715d8652aed9d3cbb155eafd4bf4f 100755
--- a/packages/node-client/package.json
+++ b/packages/node-client/package.json
@@ -1,10 +1,10 @@
 {
   "name": "jsonql-node-client",
-  "version": "1.1.9",
+  "version": "1.1.10",
   "description": "jsonql node.js client using request",
   "main": "index.js",
   "scripts": {
-    "test": "ava --verbose",
+    "test": "DEBUG=jsonql* ava --verbose",
     "test:nyc": "DEBUG=jsonql-node-client* nyc ava",
     "test:main": "DEBUG=jsonql-node-client* ava tests/main.test.js",
     "test:auth": "DEBUG=jsonql-* ava tests/auth.test.js",
@@ -39,21 +39,21 @@
     "debug": "^4.1.1",
     "fs-extra": "^8.1.0",
     "jsonql-constants": "^1.8.3",
-    "jsonql-contract": "^1.7.12",
     "jsonql-errors": "^1.1.3",
     "jsonql-jwt": "^1.3.2",
     "jsonql-params-validator": "^1.4.11",
     "jsonql-utils": "^0.6.10",
     "lodash.merge": "^4.6.2",
     "node-cache": "^4.2.1",
-    "request": "^2.88.0",
-    "superkoa": "^1.0.3"
+    "request": "^2.88.0"
   },
   "devDependencies": {
     "ava": "^2.4.0",
-    "jsonql-koa": "^1.3.8",
+    "jsonql-contract": "^1.7.15",
+    "jsonql-koa": "^1.3.9",
     "nyc": "^14.1.1",
-    "server-io-core": "^1.2.0"
+    "server-io-core": "^1.2.0",
+    "superkoa": "^1.0.3"
   },
   "ava": {
     "files": [
diff --git a/packages/node-client/tests/auth.test.js b/packages/node-client/tests/auth.test.js
index 8fc7432e6090451045a61d7ec25d6846139a990f..a2a52d5538e5fc035db1dbf71b0cd899eebab2e5 100755
--- a/packages/node-client/tests/auth.test.js
+++ b/packages/node-client/tests/auth.test.js
@@ -1,6 +1,7 @@
 const test = require('ava')
 const { join } = require('path')
 const fs = require('fs')
+const fsx = require('fs-extra')
 const debug = require('debug')('jsonql-node-client:test:auth')
 const { PUBLIC_CONTRACT_FILE_NAME } = require('jsonql-constants')
 const server = require('./fixtures/server-with-auth')
@@ -26,6 +27,7 @@ test.before(async (t) => {
 
 test.after(t => {
   t.context.stop()
+  fsx.removeSync(contractDir)
 })
 
 test('Testing the login function', async (t) => {
diff --git a/packages/node-client/tests/config.test.js b/packages/node-client/tests/config.test.js
index 3b402a53a769be18b84d94e5787b0e1c7baeecb0..5b76917b9d23ae01f0550ae3da16576838ae07fa 100644
--- a/packages/node-client/tests/config.test.js
+++ b/packages/node-client/tests/config.test.js
@@ -4,7 +4,7 @@ const { join } = require('path')
 const { checkOptions } = require('../src')
 let contractDir = join(__dirname, 'fixtures', 'contract', 'tmp')
 let hostname = 'http://localhost:8899';
-let contractKey = 'what-the-fuck-wrong-with-you-mother-fucker!';
+let contractKey = 'what-wrong-with-you-mf';
 
 test('It should not throw Error', async t => {
 
diff --git a/packages/node-client/tests/fixtures/contract-api.js b/packages/node-client/tests/fixtures/contract-api.js
index 1503e1afea9753056e7e9680af85c5519dd8990b..0039d86c54a02ccd194268c715fc3ecf5c0e33a5 100644
--- a/packages/node-client/tests/fixtures/contract-api.js
+++ b/packages/node-client/tests/fixtures/contract-api.js
@@ -1,14 +1,14 @@
-const contractApi = require('jsonql-contract');
-const fsx = require('fs-extra');
-const { join } = require('path');
+const contractApi = require('jsonql-contract')
+const fsx = require('fs-extra')
+const { join } = require('path')
 
 module.exports = (clean = false) => {
-  const outDir = join(__dirname, 'contract', 'tmp' , 'server');
+  const outDir = join(__dirname, 'contract', 'tmp' , 'server')
   if (clean === true) {
-    return fsx.removeSync(join(ourDir, 'contract.json'));
+    return fsx.removeSync(join(ourDir, 'contract.json'))
   }
   return contractApi({
     inDir: join(__dirname, 'resolvers'),
     outDir
-  }).then(() => fsx.readJsonSync(join(outDir, 'contract.json')) );
-};
+  }).then(() => fsx.readJsonSync(join(outDir, 'contract.json')))
+}
diff --git a/packages/node-client/tests/fixtures/server-with-auth.js b/packages/node-client/tests/fixtures/server-with-auth.js
index a9d5995b9d70cf111495f5fdb50f71beb57b0c77..5830a50a801fee5a912299296eb738b00779e526 100755
--- a/packages/node-client/tests/fixtures/server-with-auth.js
+++ b/packages/node-client/tests/fixtures/server-with-auth.js
@@ -1,5 +1,5 @@
 const server = require('server-io-core')
-const jsonql = require('./jsonql-koa')
+const { jsonqlKoa } = require('./jsonql-koa')
 const { contractKey } = require('./options')
 const { join } = require('path')
 
@@ -10,7 +10,7 @@ module.exports = function(port = 8889, extra = {}) {
     open: false,
     reload: false,
     middlewares: [
-      jsonql(Object.assign({
+      jsonqlKoa(Object.assign({
         contractKey,
         resolverDir: join(__dirname,'resolvers'),
         contractDir: join(__dirname,'contract','tmp','server-with-auth'),
diff --git a/packages/node-client/tests/fixtures/server.js b/packages/node-client/tests/fixtures/server.js
index 89dcdbe457e0bdfa9a3c400f82cc95c09d3fb795..7964d77fbc3d0bcc6cfa2ddbfa49ca09b27d8a06 100755
--- a/packages/node-client/tests/fixtures/server.js
+++ b/packages/node-client/tests/fixtures/server.js
@@ -1,5 +1,5 @@
 const server = require('server-io-core')
-const jsonql = require('./jsonql-koa')
+const { jsonqlKoa } = require('./jsonql-koa')
 const options = require('./options')
 const { join } = require('path')
 module.exports = function(port = 8888) {
@@ -9,7 +9,7 @@ module.exports = function(port = 8888) {
     open: false,
     reload: false,
     middlewares: [
-      jsonql({
+      jsonqlKoa({
         resolverDir: join(__dirname,'resolvers'),
         contractDir: join(__dirname,'contract','tmp' , 'server')
       })
diff --git a/packages/node-client/tests/fixtures/two/server-setup.js b/packages/node-client/tests/fixtures/two/server-setup.js
index d4721725d1754b1922bc7bb13da6f9a1afc4b46c..2d834c747ff0fe88c3b5ed59dd92a8563ca67bb5 100644
--- a/packages/node-client/tests/fixtures/two/server-setup.js
+++ b/packages/node-client/tests/fixtures/two/server-setup.js
@@ -1,5 +1,5 @@
 const server = require('server-io-core')
-const koa = require('../../../../koa')
+const { jsonqlKoa } = require('../jsonql-koa')
 const { join } = require('path')
 const dummy = join(__dirname, 'dummy')
 
@@ -13,7 +13,7 @@ module.exports = (port, resolverDir, contractDir) => {
     socket: false,
     port: port,
     middlewares: [
-      koa({
+      jsonqlKoa({
         name,
         resolverDir,
         contractDir
diff --git a/packages/node-client/tests/jwt.test.js b/packages/node-client/tests/jwt.test.js
index d878a8db57838dfc9fdce34a6dba1dca3107001f..b6d0f14e5670c20f305b26ad903335dfe46c2f2c 100644
--- a/packages/node-client/tests/jwt.test.js
+++ b/packages/node-client/tests/jwt.test.js
@@ -1,4 +1,5 @@
 const test = require('ava')
+const fsx = require('fs-extra')
 const { join } = require('path')
 const debug = require('debug')('jsonql-node-client:test:jwt')
 
@@ -32,7 +33,10 @@ test.before(async t => {
   })
 
   t.context.client = client;
+})
 
+test.after(() => {
+  fsx.removeSync(contractDir)
 })
 
 test.serial("It should able to login and received a token", async t => {
diff --git a/packages/utils/browser.js b/packages/utils/browser.js
index fa8399ac7aabef661236cc520ed75fa7083053ac..7e526b7a0dcf36bb25ebff0d8dd2ace8d4173f2b 100644
--- a/packages/utils/browser.js
+++ b/packages/utils/browser.js
@@ -1,2 +1,2 @@
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m="[object Object]",j=Function.prototype,O=Object.prototype,w=j.toString,P=O.hasOwnProperty,S=w.call(Object);function N(r){if(!b(r)||v(r)!=m)return!1;var t=h(r);if(null===t)return!0;var e=P.call(t,"constructor")&&t.constructor;return"function"==typeof e&&e instanceof e&&w.call(e)==S}var _="[object Symbol]";var k=1/0,E=u?u.prototype:void 0,F=E?E.toString:void 0;function x(r){if("string"==typeof r)return r;if(t(r))return function(r,t){for(var e=-1,n=null==r?0:r.length,o=Array(n);++e<n;)o[e]=t(r[e],e,r);return o}(r,x)+"";if(function(r){return"symbol"==typeof r||b(r)&&v(r)==_}(r))return F?F.call(r):"";var e=r+"";return"0"==e&&1/r==-k?"-0":e}function A(r,t,e){var n=r.length;return e=void 0===e?n:e,!t&&e>=n?r:function(r,t,e){var n=-1,o=r.length;t<0&&(t=-t>o?0:o+t),(e=e>o?o:e)<0&&(e+=o),o=t>e?0:e-t>>>0,t>>>=0;for(var u=Array(o);++n<o;)u[n]=r[n+t];return u}(r,t,e)}function C(r){return r!=r}function T(r,t,e){return t==t?function(r,t,e){for(var n=e-1,o=r.length;++n<o;)if(r[n]===t)return 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0!==t&&!1!==t&&null!==t&&""!==H(t)},t.objDefineProps=function(t,r,e,n){return void 0===n&&(n=null),void 0===Object.getOwnPropertyDescriptor(t,r)&&Object.defineProperty(t,r,{set:e,get:null===n?function(){return null}:n}),t},t.packError=function(t,r,e,n){var o;return void 0===r&&(r="JsonqlError"),void 0===e&&(e=500),void 0===n&&(n=""),JSON.stringify(((o={}).error={detail:t,className:r,statusCode:e,message:n},o))},t.packResult=function(t){var r;return JSON.stringify(((r={}).data=t,r))},t.resultHandler=function(t){return Ur(t,"data")&&!Ur(t,"error")?t.data:t},t.timestamp=Jr,t.toPayload=ne,t.urlParams=$r,Object.defineProperty(t,"__esModule",{value:!0})}));
 //# sourceMappingURL=browser.js.map
diff --git a/packages/utils/main.js b/packages/utils/main.js
index d4c195b26ede7831036c466372a19f3e8bf0be8b..f59962f209c89e651dd532a86c1e5a8be050fd5f 100644
--- a/packages/utils/main.js
+++ b/packages/utils/main.js
@@ -1,2 +1,2 @@
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r.filter((function(r){return t instanceof r})).map((function(r){return r.name}))}function getErrorNameByInstance(r,t){var e=mapErrToName(r,t);return e.length?e[0]:UNKNOWN_ERROR}function getErrorNameByInstanceWithDefault(r,t){var e=getErrorNameByInstance(r,t);return e===UNKNOWN_ERROR?"JsonqlError":e}function finalCatch(r){if(Array.isArray(r))throw new JsonqlValidationError("",r);var t=r.message||NO_ERROR_MSG,e=r.detail||r;switch(!0){case r instanceof Jsonql406Error:throw new Jsonql406Error(t,e);case r instanceof Jsonql500Error:throw new Jsonql500Error(t,e);case r instanceof JsonqlAuthorisationError:throw new JsonqlAuthorisationError(t,e);case r instanceof JsonqlContractAuthError:throw new JsonqlContractAuthError(t,e);case r instanceof JsonqlResolverAppError:throw new JsonqlResolverAppError(t,e);case r instanceof JsonqlResolverNotFoundError:throw new JsonqlResolverNotFoundError(t,e);case r instanceof JsonqlEnumError:throw new JsonqlEnumError(t,e);case r instanceof JsonqlTypeError:throw 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JSONQL_ERRORS_INFO="__PLACEHOLDER__",jsonqlErrors=Object.freeze({JSONQL_ERRORS_INFO:JSONQL_ERRORS_INFO,UNKNOWN_ERROR:UNKNOWN_ERROR,getErrorByStatus:getErrorByStatus,clientErrorsHandler:clientErrorsHandler,finalCatch:finalCatch,getErrorNameByInstance:getErrorNameByInstance,getErrorNameByInstanceWithDefault:getErrorNameByInstanceWithDefault,Jsonql406Error:Jsonql406Error,Jsonql500Error:Jsonql500Error,JsonqlAuthorisationError:JsonqlAuthorisationError,JsonqlContractAuthError:JsonqlContractAuthError,JsonqlResolverAppError:JsonqlResolverAppError,JsonqlResolverNotFoundError:JsonqlResolverNotFoundError,JsonqlEnumError:JsonqlEnumError,JsonqlTypeError:JsonqlTypeError,JsonqlCheckerError:JsonqlCheckerError,JsonqlValidationError:JsonqlValidationError,JsonqlError:JsonqlError,JsonqlServerError:JsonqlServerError});function checkIsContract(r){return isPlainObject(r)&&(isKeyInObject(r,QUERY_NAME)||isKeyInObject(r,MUTATION_NAME)||isKeyInObject(r,SOCKET_NAME))}function extractSocketPart(r){return!!isKeyInObject(r,"socket")&&r.socket}function groupByNamespace(r,t){void 0===t&&(t=!1);var e=extractSocketPart(r);if(!1===e){if(t)return r;throw new JsonqlError("socket not found in contract!")}var n,o={},i=0;for(var a in e){var s=e[a],u=s.namespace;u&&(o[u]||(++i,o[u]={}),o[u][a]=s,n||s.public&&(n=u))}return{size:i,nspSet:o,publicNamespace:n}}function extractArgsFromPayload(r,t){switch(t){case QUERY_NAME:return r[QUERY_ARG_NAME];case MUTATION_NAME:return[r[PAYLOAD_PARAM_NAME],r[CONDITION_PARAM_NAME]];default:throw new JsonqlError("Unknown "+t+" to extract argument from!")}}function extractParamsFromContract(r,t,e){try{var n=r[t][e];if(!n)throw new JsonqlResolverNotFoundError(e,t);return n}catch(r){throw new JsonqlResolverNotFoundError(e,r)}}var toPayload=function(r){return isString(r)?JSON.parse(r):r},formatPayload=function(r){var t;return(t={})[QUERY_ARG_NAME]=r,t};function getNameFromPayload(r){return Object.keys(r)[0]}function createQuery(r,t,e){var n;if(void 0===t&&(t=[]),void 0===e&&(e=!1),isString(r)&&isArray(t)){var o=formatPayload(t);return!0===e?o:((n={})[r]=o,n)}throw new JsonqlValidationError("[createQuery] expect resolverName to be string and args to be array!",{resolverName:r,args:t})}function createQueryStr(r,t,e){return void 0===t&&(t=[]),void 0===e&&(e=!1),JSON.stringify(createQuery(r,t,e))}function createMutation(r,t,e,n){var o;void 0===e&&(e={}),void 0===n&&(n=!1);var i={};if(i[PAYLOAD_PARAM_NAME]=t,i[CONDITION_PARAM_NAME]=e,!0===n)return i;if(isString(r))return(o={})[r]=i,o;throw new JsonqlValidationError("[createMutation] expect resolverName to be string!",{resolverName:r,payload:t,condition:e})}function createMutationStr(r,t,e,n){return void 0===e&&(e={}),void 0===n&&(n=!1),JSON.stringify(createMutation(r,t,e,n))}function getQueryFromArgs(r,t){var e;if(r&&isPlainObject(t)){var n=t[r];if(n[QUERY_ARG_NAME])return(e={})[RESOLVER_PARAM_NAME]=r,e[QUERY_ARG_NAME]=n[QUERY_ARG_NAME],e}return!1}function 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0===t&&(t=BASE64_FORMAT),isBuffer(r)?r:new Buffer.from(r,t)}var replaceErrors=function(r,t){if(t instanceof Error){var e={};return Object.getOwnPropertyNames(t).forEach((function(r){e[r]=t[r]})),e}return t},printError=function(r){return JSON.stringify(r,replaceErrors)};function findFromContract(r,t,e){return!!(e[r]&&e[r][t]&&e[r][t].file&&fs.existsSync(e[r][t].file))&&e[r][t].file}var DOT=".",getDocLen=function(r){return Buffer.byteLength(r,"utf8")},headerParser=function(r,t){try{var e=r.headers.accept.split(",");return t?e.filter((function(r){return r===t})):e}catch(r){return[]}},isHeaderPresent=function(r,t){return!!headerParser(r,t).length},getPathToFn=function(r,t,e){var n=e.resolverDir,o=dasherize(r),i=[];e.contract&&e.contract[t]&&e.contract[t].path&&i.push(e.contract[t].path),i.push(path.join(n,t,o,[INDEX_KEY,EXT].join(DOT))),i.push(path.join(n,t,[o,EXT].join(DOT)));for(var a=i.length,s=0;s<a;++s)if(fs.existsSync(i[s]))return i[s];return!1},isJsonqlPath=function(r,t){return r.path===t.jsonqlPath},isJsonqlRequest=function(r,t){return!!isHeaderPresent(r.request,t.contentType)&&isJsonqlPath(r,t)},isJsonqlConsoleUrl=function(r,t){return"GET"===r.method&&isJsonqlPath(r,t)},handleOutput=function(r){return function(t,e){t.size=getDocLen(e),t.type=r.contentType,t.status=SUCCESS_STATUS,t.body=e}},handleHtmlOutput=function(r,t){r.size=getDocLen(t),r.type="text/html",r.status=SUCCESS_STATUS,r.body=t+""},ctxErrorHandler=function(r,t,e,n){void 0===n&&(n="");var o,i=handleOutput({contentType:CONTENT_TYPE});return"string"==typeof t?t=jsonqlErrors[o=t]?jsonqlErrors[o].statusCode:-1:o=getErrorByStatus(t),!n&&e&&e.message&&(n=e.message),i(r,packError(e,o,t,n))},forbiddenHandler=function(r,t){return ctxErrorHandler(r,FORBIDDEN_STATUS,t,"JsonqlAuthorisationError")};exports.VERSION=VERSION,exports.buff=buff,exports.cacheBurst=cacheBurst,exports.cacheBurstUrl=cacheBurstUrl,exports.chainFns=chainFns,exports.chainPromises=chainPromises,exports.checkIsContract=checkIsContract,exports.createEvt=createEvt,exports.createMutation=createMutation,exports.createMutationStr=createMutationStr,exports.createQuery=createQuery,exports.createQueryStr=createQueryStr,exports.ctxErrorHandler=ctxErrorHandler,exports.dasherize=dasherize,exports.extractArgsFromPayload=extractArgsFromPayload,exports.extractParamsFromContract=extractParamsFromContract,exports.extractSocketPart=extractSocketPart,exports.findFromContract=findFromContract,exports.forbiddenHandler=forbiddenHandler,exports.formatPayload=formatPayload,exports.getCallMethod=getCallMethod,exports.getConfigValue=getConfigValue,exports.getDocLen=getDocLen,exports.getMutationFromArgs=getMutationFromArgs,exports.getMutationFromPayload=getMutationFromPayload,exports.getNameFromPayload=getNameFromPayload,exports.getPathToFn=getPathToFn,exports.getQueryFromArgs=getQueryFromArgs,exports.getQueryFromPayload=getQueryFromPayload,exports.groupByNamespace=groupByNamespace,exports.handleHtmlOutput=handleHtmlOutput,exports.handleOutput=handleOutput,exports.headerParser=headerParser,exports.inArray=inArray,exports.injectToFn=injectToFn,exports.isContract=isContract,exports.isHeaderPresent=isHeaderPresent,exports.isJsonqlConsoleUrl=isJsonqlConsoleUrl,exports.isJsonqlPath=isJsonqlPath,exports.isJsonqlRequest=isJsonqlRequest,exports.isKeyInObject=isKeyInObject,exports.isNotEmpty=isNotEmpty,exports.objDefineProps=objDefineProps,exports.packError=packError,exports.packResult=packResult,exports.printError=printError,exports.replaceErrors=replaceErrors,exports.resultHandler=resultHandler,exports.timestamp=timestamp,exports.toPayload=toPayload,exports.urlParams=urlParams;
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t(){for(var e=[],n=arguments.length;n--;)e[n]=arguments[n];r.apply(this,e),this.message=e[0],this.detail=e[1],this.className=t.name,r.captureStackTrace&&r.captureStackTrace(this,t)}r&&(t.__proto__=r),t.prototype=Object.create(r&&r.prototype),t.prototype.constructor=t;var e={statusCode:{configurable:!0},name:{configurable:!0}};return e.statusCode.get=function(){return 401},e.name.get=function(){return"JsonqlAuthorisationError"},Object.defineProperties(t,e),t}(Error),JsonqlContractAuthError=function(r){function t(){for(var e=[],n=arguments.length;n--;)e[n]=arguments[n];r.apply(this,e),this.message=e[0],this.detail=e[1],this.className=t.name,r.captureStackTrace&&r.captureStackTrace(this,t)}r&&(t.__proto__=r),t.prototype=Object.create(r&&r.prototype),t.prototype.constructor=t;var e={statusCode:{configurable:!0},name:{configurable:!0}};return e.statusCode.get=function(){return 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JSONQL_ERRORS_INFO="__PLACEHOLDER__",jsonqlErrors=Object.freeze({JSONQL_ERRORS_INFO:JSONQL_ERRORS_INFO,UNKNOWN_ERROR:UNKNOWN_ERROR,getErrorByStatus:getErrorByStatus,clientErrorsHandler:clientErrorsHandler,finalCatch:finalCatch,getErrorNameByInstance:getErrorNameByInstance,getErrorNameByInstanceWithDefault:getErrorNameByInstanceWithDefault,Jsonql406Error:Jsonql406Error,Jsonql500Error:Jsonql500Error,JsonqlAuthorisationError:JsonqlAuthorisationError,JsonqlContractAuthError:JsonqlContractAuthError,JsonqlResolverAppError:JsonqlResolverAppError,JsonqlResolverNotFoundError:JsonqlResolverNotFoundError,JsonqlEnumError:JsonqlEnumError,JsonqlTypeError:JsonqlTypeError,JsonqlCheckerError:JsonqlCheckerError,JsonqlValidationError:JsonqlValidationError,JsonqlError:JsonqlError,JsonqlServerError:JsonqlServerError});function checkIsContract(r){return isPlainObject(r)&&(isKeyInObject(r,QUERY_NAME)||isKeyInObject(r,MUTATION_NAME)||isKeyInObject(r,SOCKET_NAME))}function extractSocketPart(r){return!!isKeyInObject(r,"socket")&&r.socket}function groupByNamespace(r,t){void 0===t&&(t=!1);var e=extractSocketPart(r);if(!1===e){if(t)return r;throw new JsonqlError("socket not found in contract!")}var n,o={},a=0;for(var i in e){var s=e[i],u=s.namespace;u&&(o[u]||(++a,o[u]={}),o[u][i]=s,n||s.public&&(n=u))}return{size:a,nspSet:o,publicNamespace:n}}function extractArgsFromPayload(r,t){switch(t){case QUERY_NAME:return r[QUERY_ARG_NAME];case MUTATION_NAME:return[r[PAYLOAD_PARAM_NAME],r[CONDITION_PARAM_NAME]];default:throw new JsonqlError("Unknown "+t+" to extract argument from!")}}function extractParamsFromContract(r,t,e){try{var n=r[t][e];if(!n)throw new JsonqlResolverNotFoundError(e,t);return n}catch(r){throw new JsonqlResolverNotFoundError(e,r)}}var toPayload=function(r){return isString(r)?JSON.parse(r):r},formatPayload=function(r){var t;return(t={})[QUERY_ARG_NAME]=r,t};function getNameFromPayload(r){return Object.keys(r)[0]}function createQuery(r,t,e){var n;if(void 0===t&&(t=[]),void 0===e&&(e=!1),isString(r)&&isArray(t)){var o=formatPayload(t);return!0===e?o:((n={})[r]=o,n)}throw new JsonqlValidationError("[createQuery] expect resolverName to be string and args to be array!",{resolverName:r,args:t})}function createQueryStr(r,t,e){return void 0===t&&(t=[]),void 0===e&&(e=!1),JSON.stringify(createQuery(r,t,e))}function createMutation(r,t,e,n){var o;void 0===e&&(e={}),void 0===n&&(n=!1);var a={};if(a[PAYLOAD_PARAM_NAME]=t,a[CONDITION_PARAM_NAME]=e,!0===n)return a;if(isString(r))return(o={})[r]=a,o;throw new JsonqlValidationError("[createMutation] expect resolverName to be string!",{resolverName:r,payload:t,condition:e})}function createMutationStr(r,t,e,n){return void 0===e&&(e={}),void 0===n&&(n=!1),JSON.stringify(createMutation(r,t,e,n))}function getQueryFromArgs(r,t){var e;if(r&&isPlainObject(t)){var n=t[r];if(n[QUERY_ARG_NAME])return(e={})[RESOLVER_PARAM_NAME]=r,e[QUERY_ARG_NAME]=n[QUERY_ARG_NAME],e}return!1}function 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e?(n=e,e=0):e>2147483647?e=2147483647:e<-2147483648&&(e=-2147483648),e=+e,isNaN(e)&&(e=o?0:r.length-1),e<0&&(e=r.length+e),e>=r.length){if(o)return-1;e=r.length-1}else if(e<0){if(!o)return-1;e=0}if("string"==typeof t&&(t=Buffer$2.from(t,n)),internalIsBuffer(t))return 0===t.length?-1:arrayIndexOf(r,t,e,n,o);if("number"==typeof t)return t&=255,Buffer$2.TYPED_ARRAY_SUPPORT&&"function"==typeof Uint8Array.prototype.indexOf?o?Uint8Array.prototype.indexOf.call(r,t,e):Uint8Array.prototype.lastIndexOf.call(r,t,e):arrayIndexOf(r,[t],e,n,o);throw new TypeError("val must be string, number or Buffer")}function arrayIndexOf(r,t,e,n,o){var a,i=1,s=r.length,u=t.length;if(void 0!==n&&("ucs2"===(n=String(n).toLowerCase())||"ucs-2"===n||"utf16le"===n||"utf-16le"===n)){if(r.length<2||t.length<2)return-1;i=2,s/=2,u/=2,e/=2}function f(r,t){return 1===i?r[t]:r.readUInt16BE(t*i)}if(o){var c=-1;for(a=e;a<s;a++)if(f(r,a)===f(t,-1===c?0:a-c)){if(-1===c&&(c=a),a-c+1===u)return c*i}else-1!==c&&(a-=a-c),c=-1}else for(e+u>s&&(e=s-u),a=e;a>=0;a--){for(var l=!0,h=0;h<u;h++)if(f(r,a+h)!==f(t,h)){l=!1;break}if(l)return a}return-1}function hexWrite(r,t,e,n){e=Number(e)||0;var o=r.length-e;n?(n=Number(n))>o&&(n=o):n=o;var a=t.length;if(a%2!=0)throw new TypeError("Invalid hex string");n>a/2&&(n=a/2);for(var i=0;i<n;++i){var s=parseInt(t.substr(2*i,2),16);if(isNaN(s))return i;r[e+i]=s}return i}function utf8Write(r,t,e,n){return blitBuffer(utf8ToBytes(t,r.length-e),r,e,n)}function asciiWrite(r,t,e,n){return blitBuffer(asciiToBytes(t),r,e,n)}function latin1Write(r,t,e,n){return asciiWrite(r,t,e,n)}function base64Write(r,t,e,n){return blitBuffer(base64ToBytes(t),r,e,n)}function ucs2Write(r,t,e,n){return blitBuffer(utf16leToBytes(t,r.length-e),r,e,n)}function base64Slice(r,t,e){return 0===t&&e===r.length?fromByteArray(r):fromByteArray(r.slice(t,e))}function utf8Slice(r,t,e){e=Math.min(r.length,e);for(var n=[],o=t;o<e;){var a,i,s,u,f=r[o],c=null,l=f>239?4:f>223?3:f>191?2:1;if(o+l<=e)switch(l){case 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e="",n=0;n<t;)e+=String.fromCharCode.apply(String,r.slice(n,n+=MAX_ARGUMENTS_LENGTH));return e}function asciiSlice(r,t,e){var n="";e=Math.min(r.length,e);for(var o=t;o<e;++o)n+=String.fromCharCode(127&r[o]);return n}function latin1Slice(r,t,e){var n="";e=Math.min(r.length,e);for(var o=t;o<e;++o)n+=String.fromCharCode(r[o]);return n}function hexSlice(r,t,e){var n=r.length;(!t||t<0)&&(t=0),(!e||e<0||e>n)&&(e=n);for(var o="",a=t;a<e;++a)o+=toHex(r[a]);return o}function utf16leSlice(r,t,e){for(var n=r.slice(t,e),o="",a=0;a<n.length;a+=2)o+=String.fromCharCode(n[a]+256*n[a+1]);return o}function checkOffset(r,t,e){if(r%1!=0||r<0)throw new RangeError("offset is not uint");if(r+t>e)throw new RangeError("Trying to access beyond buffer length")}function checkInt(r,t,e,n,o,a){if(!internalIsBuffer(r))throw new TypeError('"buffer" argument must be a Buffer instance');if(t>o||t<a)throw new RangeError('"value" argument is out of bounds');if(e+n>r.length)throw new RangeError("Index out of range")}function objectWriteUInt16(r,t,e,n){t<0&&(t=65535+t+1);for(var o=0,a=Math.min(r.length-e,2);o<a;++o)r[e+o]=(t&255<<8*(n?o:1-o))>>>8*(n?o:1-o)}function objectWriteUInt32(r,t,e,n){t<0&&(t=4294967295+t+1);for(var o=0,a=Math.min(r.length-e,4);o<a;++o)r[e+o]=t>>>8*(n?o:3-o)&255}function checkIEEE754(r,t,e,n,o,a){if(e+n>r.length)throw new RangeError("Index out of range");if(e<0)throw new RangeError("Index out of range")}function writeFloat(r,t,e,n,o){return o||checkIEEE754(r,t,e,4),write(r,t,e,n,23,4),e+4}function writeDouble(r,t,e,n,o){return o||checkIEEE754(r,t,e,8),write(r,t,e,n,52,8),e+8}Buffer$2.prototype.slice=function(r,t){var e,n=this.length;if((r=~~r)<0?(r+=n)<0&&(r=0):r>n&&(r=n),(t=void 0===t?n:~~t)<0?(t+=n)<0&&(t=0):t>n&&(t=n),t<r&&(t=r),Buffer$2.TYPED_ARRAY_SUPPORT)(e=this.subarray(r,t)).__proto__=Buffer$2.prototype;else{var o=t-r;e=new Buffer$2(o,void 0);for(var a=0;a<o;++a)e[a]=this[a+r]}return e},Buffer$2.prototype.readUIntLE=function(r,t,e){r|=0,t|=0,e||checkOffset(r,t,this.length);for(var n=this[r],o=1,a=0;++a<t&&(o*=256);)n+=this[r+a]*o;return n},Buffer$2.prototype.readUIntBE=function(r,t,e){r|=0,t|=0,e||checkOffset(r,t,this.length);for(var n=this[r+--t],o=1;t>0&&(o*=256);)n+=this[r+--t]*o;return n},Buffer$2.prototype.readUInt8=function(r,t){return t||checkOffset(r,1,this.length),this[r]},Buffer$2.prototype.readUInt16LE=function(r,t){return t||checkOffset(r,2,this.length),this[r]|this[r+1]<<8},Buffer$2.prototype.readUInt16BE=function(r,t){return t||checkOffset(r,2,this.length),this[r]<<8|this[r+1]},Buffer$2.prototype.readUInt32LE=function(r,t){return t||checkOffset(r,4,this.length),(this[r]|this[r+1]<<8|this[r+2]<<16)+16777216*this[r+3]},Buffer$2.prototype.readUInt32BE=function(r,t){return t||checkOffset(r,4,this.length),16777216*this[r]+(this[r+1]<<16|this[r+2]<<8|this[r+3])},Buffer$2.prototype.readIntLE=function(r,t,e){r|=0,t|=0,e||checkOffset(r,t,this.length);for(var n=this[r],o=1,a=0;++a<t&&(o*=256);)n+=this[r+a]*o;return n>=(o*=128)&&(n-=Math.pow(2,8*t)),n},Buffer$2.prototype.readIntBE=function(r,t,e){r|=0,t|=0,e||checkOffset(r,t,this.length);for(var n=t,o=1,a=this[r+--n];n>0&&(o*=256);)a+=this[r+--n]*o;return a>=(o*=128)&&(a-=Math.pow(2,8*t)),a},Buffer$2.prototype.readInt8=function(r,t){return t||checkOffset(r,1,this.length),128&this[r]?-1*(255-this[r]+1):this[r]},Buffer$2.prototype.readInt16LE=function(r,t){t||checkOffset(r,2,this.length);var e=this[r]|this[r+1]<<8;return 32768&e?4294901760|e:e},Buffer$2.prototype.readInt16BE=function(r,t){t||checkOffset(r,2,this.length);var e=this[r+1]|this[r]<<8;return 32768&e?4294901760|e:e},Buffer$2.prototype.readInt32LE=function(r,t){return t||checkOffset(r,4,this.length),this[r]|this[r+1]<<8|this[r+2]<<16|this[r+3]<<24},Buffer$2.prototype.readInt32BE=function(r,t){return t||checkOffset(r,4,this.length),this[r]<<24|this[r+1]<<16|this[r+2]<<8|this[r+3]},Buffer$2.prototype.readFloatLE=function(r,t){return t||checkOffset(r,4,this.length),read(this,r,!0,23,4)},Buffer$2.prototype.readFloatBE=function(r,t){return t||checkOffset(r,4,this.length),read(this,r,!1,23,4)},Buffer$2.prototype.readDoubleLE=function(r,t){return t||checkOffset(r,8,this.length),read(this,r,!0,52,8)},Buffer$2.prototype.readDoubleBE=function(r,t){return t||checkOffset(r,8,this.length),read(this,r,!1,52,8)},Buffer$2.prototype.writeUIntLE=function(r,t,e,n){(r=+r,t|=0,e|=0,n)||checkInt(this,r,t,e,Math.pow(2,8*e)-1,0);var o=1,a=0;for(this[t]=255&r;++a<e&&(o*=256);)this[t+a]=r/o&255;return t+e},Buffer$2.prototype.writeUIntBE=function(r,t,e,n){(r=+r,t|=0,e|=0,n)||checkInt(this,r,t,e,Math.pow(2,8*e)-1,0);var o=e-1,a=1;for(this[t+o]=255&r;--o>=0&&(a*=256);)this[t+o]=r/a&255;return t+e},Buffer$2.prototype.writeUInt8=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,1,255,0),Buffer$2.TYPED_ARRAY_SUPPORT||(r=Math.floor(r)),this[t]=255&r,t+1},Buffer$2.prototype.writeUInt16LE=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,2,65535,0),Buffer$2.TYPED_ARRAY_SUPPORT?(this[t]=255&r,this[t+1]=r>>>8):objectWriteUInt16(this,r,t,!0),t+2},Buffer$2.prototype.writeUInt16BE=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,2,65535,0),Buffer$2.TYPED_ARRAY_SUPPORT?(this[t]=r>>>8,this[t+1]=255&r):objectWriteUInt16(this,r,t,!1),t+2},Buffer$2.prototype.writeUInt32LE=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,4,4294967295,0),Buffer$2.TYPED_ARRAY_SUPPORT?(this[t+3]=r>>>24,this[t+2]=r>>>16,this[t+1]=r>>>8,this[t]=255&r):objectWriteUInt32(this,r,t,!0),t+4},Buffer$2.prototype.writeUInt32BE=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,4,4294967295,0),Buffer$2.TYPED_ARRAY_SUPPORT?(this[t]=r>>>24,this[t+1]=r>>>16,this[t+2]=r>>>8,this[t+3]=255&r):objectWriteUInt32(this,r,t,!1),t+4},Buffer$2.prototype.writeIntLE=function(r,t,e,n){if(r=+r,t|=0,!n){var o=Math.pow(2,8*e-1);checkInt(this,r,t,e,o-1,-o)}var a=0,i=1,s=0;for(this[t]=255&r;++a<e&&(i*=256);)r<0&&0===s&&0!==this[t+a-1]&&(s=1),this[t+a]=(r/i>>0)-s&255;return t+e},Buffer$2.prototype.writeIntBE=function(r,t,e,n){if(r=+r,t|=0,!n){var o=Math.pow(2,8*e-1);checkInt(this,r,t,e,o-1,-o)}var a=e-1,i=1,s=0;for(this[t+a]=255&r;--a>=0&&(i*=256);)r<0&&0===s&&0!==this[t+a+1]&&(s=1),this[t+a]=(r/i>>0)-s&255;return t+e},Buffer$2.prototype.writeInt8=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,1,127,-128),Buffer$2.TYPED_ARRAY_SUPPORT||(r=Math.floor(r)),r<0&&(r=255+r+1),this[t]=255&r,t+1},Buffer$2.prototype.writeInt16LE=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,2,32767,-32768),Buffer$2.TYPED_ARRAY_SUPPORT?(this[t]=255&r,this[t+1]=r>>>8):objectWriteUInt16(this,r,t,!0),t+2},Buffer$2.prototype.writeInt16BE=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,2,32767,-32768),Buffer$2.TYPED_ARRAY_SUPPORT?(this[t]=r>>>8,this[t+1]=255&r):objectWriteUInt16(this,r,t,!1),t+2},Buffer$2.prototype.writeInt32LE=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,4,2147483647,-2147483648),Buffer$2.TYPED_ARRAY_SUPPORT?(this[t]=255&r,this[t+1]=r>>>8,this[t+2]=r>>>16,this[t+3]=r>>>24):objectWriteUInt32(this,r,t,!0),t+4},Buffer$2.prototype.writeInt32BE=function(r,t,e){return r=+r,t|=0,e||checkInt(this,r,t,4,2147483647,-2147483648),r<0&&(r=4294967295+r+1),Buffer$2.TYPED_ARRAY_SUPPORT?(this[t]=r>>>24,this[t+1]=r>>>16,this[t+2]=r>>>8,this[t+3]=255&r):objectWriteUInt32(this,r,t,!1),t+4},Buffer$2.prototype.writeFloatLE=function(r,t,e){return writeFloat(this,r,t,!0,e)},Buffer$2.prototype.writeFloatBE=function(r,t,e){return writeFloat(this,r,t,!1,e)},Buffer$2.prototype.writeDoubleLE=function(r,t,e){return writeDouble(this,r,t,!0,e)},Buffer$2.prototype.writeDoubleBE=function(r,t,e){return writeDouble(this,r,t,!1,e)},Buffer$2.prototype.copy=function(r,t,e,n){if(e||(e=0),n||0===n||(n=this.length),t>=r.length&&(t=r.length),t||(t=0),n>0&&n<e&&(n=e),n===e)return 0;if(0===r.length||0===this.length)return 0;if(t<0)throw new RangeError("targetStart out of bounds");if(e<0||e>=this.length)throw new RangeError("sourceStart out of bounds");if(n<0)throw new RangeError("sourceEnd out of bounds");n>this.length&&(n=this.length),r.length-t<n-e&&(n=r.length-t+e);var o,a=n-e;if(this===r&&e<t&&t<n)for(o=a-1;o>=0;--o)r[o+t]=this[o+e];else if(a<1e3||!Buffer$2.TYPED_ARRAY_SUPPORT)for(o=0;o<a;++o)r[o+t]=this[o+e];else Uint8Array.prototype.set.call(r,this.subarray(e,e+a),t);return a},Buffer$2.prototype.fill=function(r,t,e,n){if("string"==typeof r){if("string"==typeof t?(n=t,t=0,e=this.length):"string"==typeof e&&(n=e,e=this.length),1===r.length){var o=r.charCodeAt(0);o<256&&(r=o)}if(void 0!==n&&"string"!=typeof n)throw new TypeError("encoding must be a string");if("string"==typeof n&&!Buffer$2.isEncoding(n))throw new TypeError("Unknown encoding: "+n)}else"number"==typeof r&&(r&=255);if(t<0||this.length<t||this.length<e)throw new RangeError("Out of range index");if(e<=t)return this;var a;if(t>>>=0,e=void 0===e?this.length:e>>>0,r||(r=0),"number"==typeof r)for(a=t;a<e;++a)this[a]=r;else{var i=internalIsBuffer(r)?r:utf8ToBytes(new Buffer$2(r,n).toString()),s=i.length;for(a=0;a<e-t;++a)this[a+t]=i[a%s]}return this};var INVALID_BASE64_RE=/[^+\/0-9A-Za-z-_]/g;function base64clean(r){if((r=stringtrim(r).replace(INVALID_BASE64_RE,"")).length<2)return"";for(;r.length%4!=0;)r+="=";return r}function stringtrim(r){return r.trim?r.trim():r.replace(/^\s+|\s+$/g,"")}function toHex(r){return r<16?"0"+r.toString(16):r.toString(16)}function utf8ToBytes(r,t){var e;t=t||1/0;for(var n=r.length,o=null,a=[],i=0;i<n;++i){if((e=r.charCodeAt(i))>55295&&e<57344){if(!o){if(e>56319){(t-=3)>-1&&a.push(239,191,189);continue}if(i+1===n){(t-=3)>-1&&a.push(239,191,189);continue}o=e;continue}if(e<56320){(t-=3)>-1&&a.push(239,191,189),o=e;continue}e=65536+(o-55296<<10|e-56320)}else o&&(t-=3)>-1&&a.push(239,191,189);if(o=null,e<128){if((t-=1)<0)break;a.push(e)}else if(e<2048){if((t-=2)<0)break;a.push(e>>6|192,63&e|128)}else if(e<65536){if((t-=3)<0)break;a.push(e>>12|224,e>>6&63|128,63&e|128)}else{if(!(e<1114112))throw new Error("Invalid code point");if((t-=4)<0)break;a.push(e>>18|240,e>>12&63|128,e>>6&63|128,63&e|128)}}return a}function asciiToBytes(r){for(var t=[],e=0;e<r.length;++e)t.push(255&r.charCodeAt(e));return t}function utf16leToBytes(r,t){for(var e,n,o,a=[],i=0;i<r.length&&!((t-=2)<0);++i)n=(e=r.charCodeAt(i))>>8,o=e%256,a.push(o),a.push(n);return a}function base64ToBytes(r){return toByteArray(base64clean(r))}function blitBuffer(r,t,e,n){for(var o=0;o<n&&!(o+e>=t.length||o>=r.length);++o)t[o+e]=r[o];return o}function isnan(r){return r!=r}function isBuffer$1(r){return null!=r&&(!!r._isBuffer||isFastBuffer(r)||isSlowBuffer(r))}function isFastBuffer(r){return!!r.constructor&&"function"==typeof r.constructor.isBuffer&&r.constructor.isBuffer(r)}function isSlowBuffer(r){return"function"==typeof r.readFloatLE&&"function"==typeof r.slice&&isFastBuffer(r.slice(0,0))}function buff(r,t){return void 0===t&&(t=BASE64_FORMAT),isBuffer$1(r)?r:new Buffer$2.from(r,t)}var replaceErrors=function(r,t){if(t instanceof Error){var e={};return Object.getOwnPropertyNames(t).forEach((function(r){e[r]=t[r]})),e}return t},printError=function(r){return JSON.stringify(r,replaceErrors)};function findFromContract(r,t,e){return!!(e[r]&&e[r][t]&&e[r][t].file&&fs.existsSync(e[r][t].file))&&e[r][t].file}var DOT=".",getDocLen=function(r){return Buffer$2.byteLength(r,"utf8")},headerParser=function(r,t){try{var e=r.headers.accept.split(",");return t?e.filter((function(r){return r===t})):e}catch(r){return[]}},isHeaderPresent=function(r,t){return!!headerParser(r,t).length},getPathToFn=function(r,t,e){var n=e.resolverDir,o=dasherize(r),a=[];e.contract&&e.contract[t]&&e.contract[t].path&&a.push(e.contract[t].path),a.push(path.join(n,t,o,[INDEX_KEY,EXT].join(DOT))),a.push(path.join(n,t,[o,EXT].join(DOT)));for(var i=a.length,s=0;s<i;++s)if(fs.existsSync(a[s]))return a[s];return!1},isJsonqlPath=function(r,t){return r.path===t.jsonqlPath},isJsonqlRequest=function(r,t){return!!isHeaderPresent(r.request,t.contentType)&&isJsonqlPath(r,t)},isJsonqlConsoleUrl=function(r,t){return"GET"===r.method&&isJsonqlPath(r,t)},handleOutput=function(r){return function(t,e){t.size=getDocLen(e),t.type=r.contentType,t.status=SUCCESS_STATUS,t.body=e}},handleHtmlOutput=function(r,t){r.size=getDocLen(t),r.type="text/html",r.status=SUCCESS_STATUS,r.body=t+""},ctxErrorHandler=function(r,t,e,n){void 0===n&&(n="");var o,a=handleOutput({contentType:CONTENT_TYPE});return"string"==typeof t?t=jsonqlErrors[o=t]?jsonqlErrors[o].statusCode:-1:o=getErrorByStatus(t),!n&&e&&e.message&&(n=e.message),a(r,packError(e,o,t,n))},forbiddenHandler=function(r,t){return ctxErrorHandler(r,FORBIDDEN_STATUS,t,"JsonqlAuthorisationError")};exports.VERSION=VERSION,exports.buff=buff,exports.cacheBurst=cacheBurst,exports.cacheBurstUrl=cacheBurstUrl,exports.chainFns=chainFns,exports.chainPromises=chainPromises,exports.checkIsContract=checkIsContract,exports.createEvt=createEvt,exports.createMutation=createMutation,exports.createMutationStr=createMutationStr,exports.createQuery=createQuery,exports.createQueryStr=createQueryStr,exports.ctxErrorHandler=ctxErrorHandler,exports.dasherize=dasherize,exports.extractArgsFromPayload=extractArgsFromPayload,exports.extractParamsFromContract=extractParamsFromContract,exports.extractSocketPart=extractSocketPart,exports.findFromContract=findFromContract,exports.forbiddenHandler=forbiddenHandler,exports.formatPayload=formatPayload,exports.getCallMethod=getCallMethod,exports.getConfigValue=getConfigValue,exports.getDocLen=getDocLen,exports.getMutationFromArgs=getMutationFromArgs,exports.getMutationFromPayload=getMutationFromPayload,exports.getNameFromPayload=getNameFromPayload,exports.getPathToFn=getPathToFn,exports.getQueryFromArgs=getQueryFromArgs,exports.getQueryFromPayload=getQueryFromPayload,exports.groupByNamespace=groupByNamespace,exports.handleHtmlOutput=handleHtmlOutput,exports.handleOutput=handleOutput,exports.headerParser=headerParser,exports.inArray=inArray,exports.injectToFn=injectToFn,exports.isContract=isContract,exports.isHeaderPresent=isHeaderPresent,exports.isJsonqlConsoleUrl=isJsonqlConsoleUrl,exports.isJsonqlPath=isJsonqlPath,exports.isJsonqlRequest=isJsonqlRequest,exports.isKeyInObject=isKeyInObject,exports.isNotEmpty=isNotEmpty,exports.objDefineProps=objDefineProps,exports.packError=packError,exports.packResult=packResult,exports.printError=printError,exports.replaceErrors=replaceErrors,exports.resultHandler=resultHandler,exports.timestamp=timestamp,exports.toPayload=toPayload,exports.urlParams=urlParams;
 //# sourceMappingURL=main.js.map
diff --git a/packages/utils/main.js.map b/packages/utils/main.js.map
index 5407ef99dd6369110d650380c2d1232d2b45f0fd..f17f8b167ded713a2a0f45419e33c47acdd01718 100644
--- a/packages/utils/main.js.map
+++ b/packages/utils/main.js.map
@@ -1 +1 @@
-{"version":3,"file":"main.js","sources":["node_modules/jsonql-errors/src/get-error-name-by-instance.js","node_modules/buffer-es6/isArray.js"],"sourcesContent":["const UNKNOWN_ERROR = 'unknown'\n\n/**\n * @param {array} errs list of errors to compare from\n * @param {object} e the error captured\n * @return {array} filtered with name as value\n */\nfunction mapErrToName(errs, e) {\n  return errs.filter(err => e instanceof err)\n    .map(err => err.name)\n}\n\n/**\n * @param {array} errs list of errors to compare from\n * @param {object} e the error captured\n * @return {string} name of the error object\n */\nfunction getErrorNameByInstance(errs, e) {\n  let error = mapErrToName(errs, e)\n  return error.length ? error[0] : UNKNOWN_ERROR\n}\n\n/**\n * the same as above with a default JsonqlError as default\n * @param {array} errs same\n * @param {object} e error itself\n * @return {string} the name of the error\n */\nfunction getErrorNameByInstanceWithDefault(errs, e) {\n  let name = getErrorNameByInstance(errs, e)\n  return name === UNKNOWN_ERROR ? 'JsonqlError' : name;\n}\n\n\nexport {\n  getErrorNameByInstanceWithDefault,\n  getErrorNameByInstance,\n  UNKNOWN_ERROR\n}\n","var toString = {}.toString;\n\nexport default Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n"],"names":["const"],"mappings":"6scAAAA,kvPCAA"}
\ No newline at end of file
+{"version":3,"file":"main.js","sources":["node_modules/jsonql-errors/src/get-error-name-by-instance.js","node_modules/buffer-es6/isArray.js"],"sourcesContent":["const UNKNOWN_ERROR = 'unknown'\n\n/**\n * @param {array} errs list of errors to compare from\n * @param {object} e the error captured\n * @return {array} filtered with name as value\n */\nfunction mapErrToName(errs, e) {\n  return errs.filter(err => e instanceof err)\n    .map(err => err.name)\n}\n\n/**\n * @param {array} errs list of errors to compare from\n * @param {object} e the error captured\n * @return {string} name of the error object\n */\nfunction getErrorNameByInstance(errs, e) {\n  let error = mapErrToName(errs, e)\n  return error.length ? error[0] : UNKNOWN_ERROR\n}\n\n/**\n * the same as above with a default JsonqlError as default\n * @param {array} errs same\n * @param {object} e error itself\n * @return {string} the name of the error\n */\nfunction getErrorNameByInstanceWithDefault(errs, e) {\n  let name = getErrorNameByInstance(errs, e)\n  return name === UNKNOWN_ERROR ? 'JsonqlError' : name;\n}\n\n\nexport {\n  getErrorNameByInstanceWithDefault,\n  getErrorNameByInstance,\n  UNKNOWN_ERROR\n}\n","var toString = {}.toString;\n\nexport default Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n"],"names":["const"],"mappings":"+l4BAAAA,kvPCAA"}
\ No newline at end of file
diff --git a/packages/utils/package.json b/packages/utils/package.json
index d9e12ee2f0388a0037e5c9cb87bc5fd5fd447662..4a3e29e7558f32ebff389dbaee599a2fcc86ffb6 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jsonql-utils",
-  "version": "0.6.10",
+  "version": "0.6.12",
   "description": "This is a jsonql dependency module, not for generate use.",
   "main": "main.js",
   "module": "index.js",
@@ -21,7 +21,8 @@
     "build:client": "NODE_ENV=CLIENT rollup -c",
     "build": "npm run build:cjs && npm run build:umd",
     "test:define": "DEBUG=jsonql* ava --verbose ./tests/define-property.test.js",
-    "test:params": "DEBUG=jsonql* ava ./tests/params-api.test.js"
+    "test:params": "DEBUG=jsonql* ava ./tests/params-api.test.js",
+    "test:chain": "DEBUG=jsonql-utils* ava --verbose ./tests/chain-fn.test.js"
   },
   "keywords": [
     "jsonql",
diff --git a/packages/utils/src/chain-fns.js b/packages/utils/src/chain-fns.js
index 08b8209366ac158abc5bcb5b6a23db7cc7a51e35..101a70731d82b6da4ce4bd114492f62bf9a72e45 100644
--- a/packages/utils/src/chain-fns.js
+++ b/packages/utils/src/chain-fns.js
@@ -1,7 +1,7 @@
 // break it out on its own because
 // it's building from the lodash-es from scratch
 // according to this discussion https://github.com/lodash/lodash/issues/3298
-
+import { merge, isPlainObject } from './lodash'
 /**
  * using just the map reduce to chain multiple functions together
  * @param {function} mainFn the init function
@@ -20,14 +20,17 @@ export const chainFns = (mainFn, ...moreFns) => (
  * previously we already make sure the order of the namespaces
  * and attach the auth client to it
  * @param {array} promises array of unresolved promises
+ * @param {boolean} asObject if true then merge the result object
  * @return {object} promise resolved with the array of promises resolved results
  */
-export function chainPromises(promises) {
+export function chainPromises(promises, asObject = false) {
   return promises.reduce((promiseChain, currentTask) => (
     promiseChain.then(chainResults => (
       currentTask.then(currentResult => (
-        [...chainResults, currentResult]
+        asObject === false ? [...chainResults, currentResult] : merge(chainResults, currentResult)
       ))
     ))
-  ), Promise.resolve([]))
+  ), Promise.resolve(
+    asObject === false ? [] : (isPlainObject(asObject) ? asObject : {})
+  ))
 }
diff --git a/packages/utils/src/lodash.js b/packages/utils/src/lodash.js
index 275c7b87862c785cd648c722b0483e4fbb8c11d1..63361bd9891495c518799a3b081c4f335aa13572 100644
--- a/packages/utils/src/lodash.js
+++ b/packages/utils/src/lodash.js
@@ -4,10 +4,12 @@ import isArray from 'lodash-es/isArray'
 import isPlainObject from 'lodash-es/isPlainObject'
 import trim from 'lodash-es/trim'
 import isString from 'lodash-es/isString'
+import merge from 'lodash-es/merge'
 
 export {
   isArray,
   isPlainObject,
   isString,
-  trim
+  trim,
+  merge
 }
diff --git a/packages/utils/tests/chain-fn.test.js b/packages/utils/tests/chain-fn.test.js
index 4121d2e6d4bdd0aed9910ddd496b94b47f13ddc1..e0d55c39117aa7365b17bc810d1ec68309323b88 100644
--- a/packages/utils/tests/chain-fn.test.js
+++ b/packages/utils/tests/chain-fn.test.js
@@ -1,17 +1,27 @@
 // need to test the chain-fns because of the way we change the lodash import
 const test = require('ava')
-const { chainFns } = require('../src/chain-fns')
+const { chainFns, chainPromises } = require('../src/chain-fns')
+const debug = require('debug')('jsonql-utils:test:chain-fn')
 
 test('It should able to accept more than one functions after the first one', t => {
-
   const baseFn = (num) => num * 10;
   const add1 = (num) => num + 1;
   const add2 = (num) => num + 2;
 
   const fn = chainFns(baseFn, add1, add2)
-
   const result = fn(10)
-
   t.is(103, result)
+})
+
+test(`It should able to merge the promise result together as one object`, async t => {
+  let ps = []
+  for (let i = 0; i < 3; ++i) {
+    ps.push(Promise.resolve({['key' + i]: i}))
+  }
+  const result = await chainPromises(ps, {x: 'y'})
+
+  debug(result)
 
+  t.truthy( result['key1'] )
+  t.true( result.x === 'y' )
 })