diff --git a/.babelrc b/.babelrc
new file mode 100644
index 0000000..34ca50e
--- /dev/null
+++ b/.babelrc
@@ -0,0 +1,16 @@
+{
+  "presets": [
+    [
+      "@babel/preset-env",
+      {
+        "targets": {
+          "node": "current",
+          "chrome": "69"
+        }
+      }
+    ]
+  ],
+  "plugins": [
+    "babel-plugin-dynamic-import-node"
+  ]
+}
diff --git a/package-lock.json b/package-lock.json
index c0773a8..3e5af8e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,538 +4,1000 @@
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+      "resolved": "https://registry.npmjs.org/unicode-property-aliases-ecmascript/-/unicode-property-aliases-ecmascript-1.0.4.tgz",
+      "integrity": "sha512-2WSLa6OdYd2ng8oqiGIWnJqyFArvhn+5vgx5GTxMbUYjCYKUcuKS62YLFF0R/BDGlB1yzXjQOLtPAfHsgirEpg==",
       "dev": true
     },
     "wrappy": {
@@ -1221,21 +1507,6 @@
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
       "dev": true
-    },
-    "write": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/write/-/write-0.2.1.tgz",
-      "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
-      "dev": true,
-      "requires": {
-        "mkdirp": "0.5.1"
-      }
-    },
-    "yallist": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
-      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
-      "dev": true
     }
   }
 }
diff --git a/package.json b/package.json
index daf41fe..80ccff8 100644
--- a/package.json
+++ b/package.json
@@ -7,16 +7,19 @@
   "author": "Bas Kaptijn",
   "license": "GPL-3.0",
   "scripts": {
-    "test": "vows test/discipl-core-api.js --spec"
+    "test": "./node_modules/.bin/mocha --require @babel/register ./src/**/*.spec.js"
   },
   "dependencies": {
     "crypto-js": "3.1.9-1",
     "debug": "3.1.0"
   },
   "devDependencies": {
+    "@babel/core": "^7.2.2",
+    "@babel/preset-env": "^7.2.0",
+    "@babel/register": "^7.0.0",
+    "babel-plugin-dynamic-import-node": "^2.2.0",
+    "chai": "^4.2.0",
     "discipl-core-memory": "git+https://github.com/discipl/discipl-core-memory.git",
-    "assert": "1.4.1",
-    "rewire": "4.0.1",
-    "vows": "0.8.2"
+    "mocha": "^5.2.0"
   }
 }
diff --git a/index.js b/src/index.js
similarity index 91%
rename from index.js
rename to src/index.js
index aabe939..7ada41f 100644
--- a/index.js
+++ b/src/index.js
@@ -1,5 +1,4 @@
-
-const CryptoJS = require('crypto-js')
+import crypto from 'crypto-js';
 
 const DID_DELIMITER = ':'
 const MAX_DEPTH_REACHED = 'MAX_DEPTH_REACHED'
@@ -17,18 +16,20 @@ var disciplCoreConnectors = []
 /**
  * requires and holds in memory the given discipl connector (if not done before)
  */
-const initializeConnector = (connector) => {
+const initializeConnector = async (connector) => {
   if(!Object.keys(disciplCoreConnectors).includes(connector)) {
-    let connectorModuleClass = require(CONNECTOR_MODULE_PREFIX+connector)
-    disciplCoreConnectors[connector] = new connectorModuleClass()
+    import(CONNECTOR_MODULE_PREFIX+connector).then(module => {
+        let connectorModuleClass = module.default
+        disciplCoreConnectors[connector] = new connectorModuleClass()
+    })
   }
 }
 
 /**
  * returns the connector object of the given discipl connector. Automaticly lazy loads the corresponding module
  */
-const getConnector = (connector) => {
-  initializeConnector(connector)
+const getConnector = async (connector) => {
+  await initializeConnector(connector)
   return disciplCoreConnectors[connector]
 }
 
@@ -60,10 +61,10 @@ const getLink = (ssid, claim) => {
 /**
  * checks if a given string seems to be a valid link (correct syntax and refers to an available connector). Does not check the claim the link refers to exists or not. The reference is not checked
  */
-const isValidLink = (link) => {
+const isValidLink = async (link) => {
   try {
     let {connector, reference} = splitLink(link)
-    getConnector(connector)
+    await getConnector(connector)
     return true
   } catch(e) {
     return false
@@ -75,7 +76,7 @@ const isValidLink = (link) => {
  */
 const getSsidOfLinkedClaim = async (link) => {
   let {connector, reference} = splitLink(link)
-  let conn = getConnector(connector)
+  let conn = await getConnector(connector)
   let ssid = await conn.getSsidOfClaim(reference)
   return {'did':DID_PREFIX+conn.getName()+DID_DELIMITER+ssid.pubkey}
 }
@@ -84,12 +85,12 @@ const getSsidOfLinkedClaim = async (link) => {
  * returns a HMAC-384 peppered hash of the given data with the did of the given ssid as key
  */
 const getHash = (ssid, data) => {
-  return CryptoJS.enc.Base64.stringify(CryptoJS.HmacSHA384(data, ssid.did))
+  return crypto.enc.Base64.stringify(crypto.HmacSHA384(data, ssid.did))
 }
 
-const expandSsid = (ssid) => {
+const expandSsid = async (ssid) => {
   let splitted = ssid.did.split(DID_DELIMITER)
-  ssid['connector'] = getConnector(splitted[2])
+  ssid['connector'] = await getConnector(splitted[2])
   ssid['pubkey'] = splitted[3]
   return ssid
 }
@@ -98,7 +99,7 @@ const expandSsid = (ssid) => {
  * Generates a new ssid, a json object in the form of: {connector:connectorObj, did:did, pubkey:pubkey, privkey:privkey}, for the platform the given discipl connector name adds support for
  */
 const newSsid = async (connector) => {
-  let conn = getConnector(connector)
+  let conn = await getConnector(connector)
   let ssid = await conn.newSsid()
   ssid['connector'] = conn
   ssid['did'] = DID_PREFIX+conn.getName()+DID_DELIMITER+ssid.pubkey
@@ -109,7 +110,7 @@ const newSsid = async (connector) => {
  * Adds a claim to the (end of the) channel of the given ssid (containing the did and probably privkey as only requirement). Returns a link to this claim.
  */
 const claim = async (ssid, data) => {
-  expandSsid(ssid)
+  await expandSsid(ssid)
   let reference = await ssid.connector.claim(ssid, data)
   return getLink(ssid, reference)
 }
@@ -135,7 +136,7 @@ const verify = async (predicate, link, ssids, all = false) => {
   for(let i in ssids) {
     let ssid = ssids[i]
     if(!(ssid)) continue
-    expandSsid(ssid)
+    await expandSsid(ssid)
     let attestation = {}
     attestation[predicate] = link
     let reference = await ssid.connector.verify(ssid, attestation)
@@ -165,7 +166,7 @@ const verify = async (predicate, link, ssids, all = false) => {
  */
 const get = async (link, ssid = null) => {
   let {connector, reference}  = splitLink(link)
-  let conn = getConnector(connector)
+  let conn = await getConnector(connector)
   let result = await conn.get(reference, ssid)
   result.previous = getLink({'connector':conn}, result.previous)
   return result
@@ -187,17 +188,17 @@ const detectSsidLinkFromDidSsidOrLink = async (value) => {
   let currentLink = null
   let currentSsid = null
   if(typeof value == 'string') {
-    if(isValidLink(value)) {
+    if(await isValidLink(value)) {
       currentLink = value
       currentSsid = await getSsidOfLinkedClaim(currentLink)
     } else if(value.indexOf(DID_PREFIX) == 0) {
-      currentSsid = expandSsid({'did':value})
+      currentSsid = await expandSsid({'did':value})
       currentLink = getLink(currentSsid, await currentSsid.connector.getLatestClaim(currentSsid))
     } else {
       return null
     }
   } else if(Object.keys(value).includes('did')) {
-    currentSsid = expandSsid(value)
+    currentSsid = await expandSsid(value)
     currentLink = getLink(currentSsid, await currentSsid.connector.getLatestClaim(currentSsid))
   } else {
     return null
@@ -265,7 +266,7 @@ const revoke = async (ssid, link) => {
   return attest(ssid, REVOKE_PREDICATE, link)
 }
 
-module.exports = {
+export {
   getConnector,
   newSsid,
   claim,
diff --git a/src/index.spec.js b/src/index.spec.js
new file mode 100644
index 0000000..1b7c0b8
--- /dev/null
+++ b/src/index.spec.js
@@ -0,0 +1,11 @@
+import { expect } from "chai";
+import * as discipl from '../src/index.js';
+
+describe("index test", () => {
+    describe("getConnector function", () => {
+        it("should be able to get the memory connector", async () => {
+            const connector = await discipl.getConnector("memory");
+            expect(connector.getName(), "memory")
+        })
+    })
+})
diff --git a/test/discipl-core-api.js b/test/discipl-core-api.js
deleted file mode 100644
index d74d27b..0000000
--- a/test/discipl-core-api.js
+++ /dev/null
@@ -1,196 +0,0 @@
-
-let vows = require('vows')
-let assert = require('assert')
-let rewire = require("rewire")
-let discipl = rewire('../index.js')
-let tmpSsid = null
-let tmpAttestorSsid = null
-let tmpAttestorSsid2 = null
-let tmpLink = null
-let tmpLink2 = null
-let tmpAttestLink = null
-let suite = vows.describe('discipl-core-api').addBatch({
-  'A Discipl Core API synchronously ' : {
-    'can load a connector module like discipl-core-memory' : {
-      topic : 'memory',
-      'once when needed and retrieve it' : function (topic) {
-        assert.equal(discipl.getConnector(topic).getName(), topic)
-      },
-      'and retrieve it multiple times' : function (topic) {
-        assert.equal(discipl.getConnector(topic).getName(), topic)
-      }
-    },
-    'can be used to get links ' : {
-      topic : {'connector':discipl.getConnector('memory'),'did':'IN33DB33R'},
-      ' internally from a ssid and claim reference (a string) ' : function (topic) {
-        assert.equal(discipl.__get__('getLink')(topic,'123456789'),'link:discipl:memory:123456789')
-      },
-      ' internally from a ssid and claim (JSON) ' : function (topic) {
-        assert.equal(discipl.__get__('getLink')(topic,{'need':'beer'}),'link:discipl:memory:xF5Q7KbSEwork2sDv4UZvxtWORyLNfsBCit4dQq3/6k0tjeKDoP/s9oD6A+OOYSg')
-      },
-      ' internally though null objects as claim will resolve as a null value as link' : function (topic) {
-        assert.equal(discipl.__get__('getLink')(topic, null), null)
-      }
-    },
-    'can use discipl links like: link:discipl:memory:1234 ' : {
-      topic : 'link:discipl:memory:1234',
-      'internally to obtain the connector name and reference from the link ' : function (topic) {
-        assert.equal(JSON.stringify(discipl.__get__('splitLink')(topic)), JSON.stringify({'connector':'memory','reference':'1234'}))
-      },
-      'internally to check if they are valid ' : function (topic) {
-        assert.equal(discipl.__get__('isValidLink')(topic), true)
-      },
-      'internally to check if they are syntactically invalid ' : function (topic) {
-        assert.equal(discipl.__get__('isValidLink')(topic.replace(':','.')), false)
-      },
-      'internally to check if they are semantically invalid (the connector name part) ' : function (topic) {
-        assert.equal(discipl.__get__('isValidLink')(topic.replace('memory','discipl-core')), false)
-      }
-    },
-  }
-}).addBatch({
-  'A Discipl Core API asynchronously can retrieve a new ssid' : {
-      topic : function () {
-        vows = this
-        discipl.newSsid('memory').then(function (res) {
-          tmpSsid = res
-          vows.callback(null, res)
-        }).catch(function (err) {
-          vows.callback(err, null)
-        })
-      },
-      ' returns a proper ssid object with different large random strings as keys, a did and connector object' : function (err, ssid) {
-        assert.equal(err, null)
-        assert.equal(typeof ssid.pubkey, 'string')
-        assert.equal(ssid.pubkey.length , 88)
-        assert.equal(typeof ssid.privkey, 'string')
-        assert.equal(ssid.privkey.length, 88)
-        assert.notEqual(ssid.pubkey, ssid.privkey)
-        assert.equal(tmpSsid, ssid)
-        assert.equal(ssid.did, 'did:discipl:memory:'+ssid.pubkey)
-        assert.equal(ssid.connector.getName(), 'memory')
-      },
-    }
-}).addBatch({
-  'A Discipl Core API asynchronously can add a first claim to some new channel through a claim() method which' : {
-    topic : function () {
-      vows = this
-      discipl.claim(tmpSsid, {'need':'beer'}).then(function (res) {
-        tmpLink = res
-        vows.callback(null, res)
-      }).catch(function (err) {
-        vows.callback(err, null)
-      })
-    },
-    ' returns a valid link to the claim' : function (err, link) {
-        assert.equal(err, null)
-        assert.equal(typeof link, 'string')
-        assert.equal(link.length , 108)
-        assert.equal(tmpLink, link)
-        assert.equal(discipl.__get__('isValidLink')(link), true)
-    }
-  }}).addBatch({
-  'A Discipl Core API asynchronously can retrieve a first claim that is referenced in a link given to a get() method which' : {
-    topic : function () {
-      vows = this
-      discipl.get(tmpLink).then(function (res) {
-        vows.callback(null, res)
-      }).catch(function (err) {
-        vows.callback(err, null)
-      })
-    },
-    ' returns a result object with the data and a link to the previous claim in the channel that equals null if it is the first claim in the channel' : function (err, res) {
-        assert.equal(err, null)
-        assert.equal(JSON.stringify(res.data), JSON.stringify({'need':'beer'}))
-        assert.equal(res.previous, null)
-    }
-  }}).addBatch({
-  'A Discipl Core API asynchronously can add another claim to some existing channel through a claim() method which' : {
-    topic : function () {
-      vows = this
-      discipl.claim(tmpSsid, {'need':'u'}).then(function (res) {
-        tmpLink2 = res
-        vows.callback(null, res)
-      }).catch(function (err) {
-        vows.callback(err, null)
-      })
-    },
-    ' returns a reference to the claim' : function (err, link) {
-        assert.equal(err, null)
-        assert.equal(typeof link, 'string')
-        assert.equal(link.length , 108)
-        assert.equal(tmpLink2, link)
-    }
-  }}).addBatch({
-  'A Discipl Core API asynchronously can retrieve a second claim that is referenced in a link given to a get() method which' : {
-    topic : function () {
-      vows = this
-      discipl.get(tmpLink2).then(function (res) {
-        vows.callback(null, res)
-      }).catch(function (err) {
-        vows.callback(err, null)
-      })
-    },
-    ' returns a result object with the data and a link to the previous (first) claim' : function (err, res) {
-        assert.equal(err, null)
-        assert.equal(JSON.stringify(res.data), JSON.stringify({'need':'u'}))
-        assert.equal(res.previous, tmpLink)
-    }
-  }}).addBatch({
-  'A Discipl Core API asynchronously can attest a second claim in a channel in a new other channel through an attest() method which' : {
-    topic : function () {
-      vows = this
-      discipl.newSsid('memory').then(function (res) {
-        tmpAttestorSsid = res
-        discipl.attest(res, 'agree', tmpLink2).then(function (res) {
-          tmpAttestLink = res
-          discipl.get(res).then(function (res) {
-            vows.callback(null, res)
-          })
-        })
-      }).catch(function (err) { vows.callback(err, null) })
-    },
-    ' returns the link to the attestation with which the attestation can be retrieved ' : function (err, res) {
-        assert.equal(err, null)
-        assert.equal(JSON.stringify(res.data), JSON.stringify({'agree':tmpLink2}))
-        assert.equal(res.previous, null)
-    }
-  }
-}).addBatch({
-  'A Discipl Core API asynchronously can verify whether a claim has been attested' : {
-    topic : function () {
-      vows = this
-      discipl.verify('agree', tmpLink2, [tmpSsid, tmpAttestorSsid2, {'did':'did:discipl:memory:1234'}, tmpAttestorSsid]).then(function (res) {
-        vows.callback(null, res)
-      }).catch(function (err) { vows.callback(err, null) })
-    },
-    ' verify() returns ssid of first attesttor in the given list and does not throw error on given null or non existing ssids' : function (err, res) {
-        assert.equal(err, null)
-        assert.equal(res, tmpAttestorSsid)
-    }
-  }}).addBatch({
-  'A Discipl Core API asynchronously can verify whether a claim has not been attested' : {
-    topic : function () {
-      vows = this
-      discipl.verify('disagree', tmpLink2, [tmpSsid, tmpAttestorSsid2, {'did':'did:discipl:memory:1234'}, tmpAttestorSsid]).then(function (res) {
-        vows.callback(null, res)
-      }).catch(function (err) { vows.callback(err, null) })
-    },
-    ' verify() returns null and does not throw error on given null or non existing ssids' : function (err, res) {
-        assert.equal(err, null)
-        assert.equal(res, null)
-    }
-  }}).addBatch({
-  'A Discipl Core API asynchronously can export linked verifiable claim channels ' : {
-    topic : function () {
-      vows = this
-      discipl.exportLD(tmpAttestorSsid).then(function (res) {
-        vows.callback(null, res)
-      }).catch(function (err) { vows.callback(err, null) })
-    },
-    ' verify() returns null and does not throw error on given null or non existing ssids' : function (err, res) {
-        assert.equal(err, null)
-        assert.equal(JSON.stringify(res[tmpAttestorSsid.did][tmpAttestLink]['agree'][tmpSsid.did][tmpLink2]), JSON.stringify({need:'u'}))
-    }
-  }
-}).export(module)