diff --git a/accesRights.js b/accesRights.js
index 1d6c974..236cb5c 100644
--- a/accesRights.js
+++ b/accesRights.js
@@ -1,4 +1,4 @@
-module.exports = class AccesRights {
+export class AccesRights {
 
     constructor(config, debug){
         this.debug = debug
diff --git a/actions/chat.js b/actions/chat.js
index 012ee53..f65b160 100644
--- a/actions/chat.js
+++ b/actions/chat.js
@@ -1,4 +1,4 @@
-module.exports.methods = {
+export const methods = {
 
     /*  Creates (predictable) peer-to-peer chan if necessary, or check for lobby existence, then subscribe to it.
         Request:
diff --git a/actions/index.js b/actions/index.js
index 63a83b5..2e1956d 100644
--- a/actions/index.js
+++ b/actions/index.js
@@ -1,9 +1,17 @@
-module.exports.methods = {}
-Object.assign(module.exports.methods, require('./utilities').methods )
-Object.assign(module.exports.methods, require('./pubSub').methods )
-Object.assign(module.exports.methods, require('./store').methods )
-Object.assign(module.exports.methods, require('./sessions').methods )
-Object.assign(module.exports.methods, require('./notifications').methods )
-Object.assign(module.exports.methods, require('./chat').methods )
+import { methods as utilities } from './utilities.js'
+import { methods as pubSub } from './pubSub.js'
+import { methods as store } from './store.js'
+import { methods as sessions } from './sessions.js'
+import { methods as notifications } from './notifications.js'
+import { methods as chat } from './chat.js'
+
+export const gatewayActions = {
+  ...utilities,
+  ...pubSub,
+  ...store,
+  ...sessions,
+  ...notifications,
+  ...chat
+}
 
 
diff --git a/actions/notifications.js b/actions/notifications.js
index 879e740..20cebe2 100644
--- a/actions/notifications.js
+++ b/actions/notifications.js
@@ -1,4 +1,4 @@
-module.exports.methods = {
+export const methods = {
 
     async action_NOTIFS(action, payload, reqid){
         let reply = {
diff --git a/actions/pubSub.js b/actions/pubSub.js
index 163755d..d5e0243 100644
--- a/actions/pubSub.js
+++ b/actions/pubSub.js
@@ -1,4 +1,4 @@
-module.exports.methods = {
+export const methods = {
     /*  Request:
         {
             "action": "SUB",
diff --git a/actions/sessions.js b/actions/sessions.js
index 7fabdae..3c834b6 100644
--- a/actions/sessions.js
+++ b/actions/sessions.js
@@ -1,4 +1,4 @@
-module.exports.methods = {
+export const methods = {
 
     /* Request payload : null
        Reply:
diff --git a/actions/store.js b/actions/store.js
index 0016722..4e98c15 100644
--- a/actions/store.js
+++ b/actions/store.js
@@ -1,4 +1,4 @@
-module.exports.methods = {
+export const methods = {
 
     /*  Request:
         {
diff --git a/actions/utilities.js b/actions/utilities.js
index f6911a7..9a40773 100644
--- a/actions/utilities.js
+++ b/actions/utilities.js
@@ -1,4 +1,4 @@
-module.exports.methods = {
+export const methods = {
 
     /*  Request:
         {
diff --git a/configHelper.js b/configHelper.js
index 237bb06..4575f06 100644
--- a/configHelper.js
+++ b/configHelper.js
@@ -1,9 +1,8 @@
-const Ajv = require("ajv")
-const confSchema = require('./configSchema.json')
+import Ajv from 'ajv'
+import confSchema from './configSchema.json' with { type: 'json' }
+import { pathToFileURL } from 'url'
 
-let  DynamoDBClient, GetItemCommand, marshall, unmarshall
-
-module.exports = class configHelper {
+export class configHelper {
 
     constructor(options){
         this.config = {}
@@ -24,7 +23,10 @@ module.exports = class configHelper {
 
     async fetchConfigFile(){
         let curConfig = this.config
-        this.config = await require(this.localfile)
+        const url = pathToFileURL(this.localfile).href
+        this.config = await import(url, {
+            with: { type: 'json' }
+        }).then(m => m.default)
         if(this.isValidConfig(this.config)) return(this.config)
         console.error(this.isValidConfig.errors)
         //revert if invalid conf
@@ -37,9 +39,8 @@ module.exports = class configHelper {
     }
 
     async refreshAccessRightsFile(){
-        delete require.cache[require.resolve(this.localfile)]
         let tmp
-        try { tmp = require(this.localfile) }
+        try { tmp = import(`${this.localfile}?update=${Date.now()}`, { assert: { type: 'json' } }) }
         catch(err) { 
             console.error('Error Reloading config !! (bad json?) => Keeping current accessRights !')
             return 
diff --git a/package.json b/package.json
index a9afaf5..f555da8 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "3.4.6",
   "description": "Websocket-Redis Message Bus Gateway",
   "main": "wssGateway.js",
+  "type": "module",
   "scripts": {
     "test": "jest --verbose"
   },
@@ -15,6 +16,8 @@
   "dependencies": {
     "ajv": "^8.12.0",
     "cookie-parser": "^1.4.6",
+    "express-mysql-session": "^3.0.3",
+    "express-session": "^1.18.2",
     "pm2": "^6.0.10",
     "redis": "^4.3.0",
     "urldecode": "^1.0.1",
diff --git a/redisConnexion.js b/redisConnexion.js
index 8dafbe5..2e474b4 100644
--- a/redisConnexion.js
+++ b/redisConnexion.js
@@ -1,6 +1,5 @@
-const redis = require('redis');
-
-module.exports = class RedisConnexion {
+import redis from 'redis'
+export class RedisConnexion {
 
     constructor(options) {
         this.config = options.config;
diff --git a/tests/accessRights.test.js b/tests/accessRights.test.js
index 666a548..a060f90 100644
--- a/tests/accessRights.test.js
+++ b/tests/accessRights.test.js
@@ -1,4 +1,4 @@
-const AccesRights = require('../accesRights')
+import {AccesRights} from '../accesRights'
 let accessRights = new AccesRights({
     "accessRights": [
         {
diff --git a/wssConnexion.js b/wssConnexion.js
index 2cc1836..3fbb249 100644
--- a/wssConnexion.js
+++ b/wssConnexion.js
@@ -1,10 +1,10 @@
-const crypto = require('crypto')
-const gatewayActions = require('./actions')
+import crypto from 'crypto'
+import { gatewayActions } from './actions/index.js'
 
-module.exports = class WssConnexion {
+export class WssConnexion {
 
     constructor(options){
-        Object.assign(this, gatewayActions.methods)
+        Object.assign(this, gatewayActions)
 
         this.config = options.config;
         this.socket = options.socket;
diff --git a/wssGateway.js b/wssGateway.js
index 37615ce..cfa2230 100644
--- a/wssGateway.js
+++ b/wssGateway.js
@@ -1,13 +1,14 @@
-const yargs = require('yargs')   
-const ws = require('ws')
-const fs = require('fs')
-const RedisConnexion = require('./redisConnexion')
-const urlparser = require('url');
-const wssServer = require('./wssServer')
-const configHelper = require('./configHelper')
+import yargs from 'yargs/yargs'
+import { hideBin } from 'yargs/helpers'
 
+import { WebSocketServer } from 'ws'
+import fs from 'fs'
+import {RedisConnexion} from './redisConnexion.js'
+import urlparser from 'url'
+import {wssServer} from './wssServer.js'
+import {configHelper} from './configHelper.js'
 
-const argv = yargs.command('wssGateway', 'Redis <=> Websocket message bus gateway', {})
+const argv = yargs(hideBin(process.argv)).command('wssGateway', 'Redis <=> Websocket message bus gateway', {})
     .options({
         'argv.debug': {
             description: 'shows debug info',
@@ -36,15 +37,15 @@ async function startRedis(wssGatewayConfig) {
 }
 
 
-cfgh.fetchConfig().then( wssGatewayConfig => {
+cfgh.fetchConfig().then( async wssGatewayConfig => {
 
     if((!wssGatewayConfig) || (Object.keys(wssGatewayConfig).length<4)) {
         console.error('Cannot get a valid configuration ! Aaarrghhh...')
         process.exit()
     }    
     let httpLib
-    if(wssGatewayConfig.server.unsecure) httpLib = require('http')
-    else httpLib = require('https')
+    if(wssGatewayConfig.server.unsecure) httpLib = await import('http')
+    else httpLib = await import('https')
 
 
     /////////////////////// Create & Start servers \\\\\\\\\\\\\\\\\\\\\\
@@ -91,7 +92,7 @@ cfgh.fetchConfig().then( wssGatewayConfig => {
         wssServerOptions['key'] = fs.readFileSync(wssGatewayConfig.server.certKeyFile)
         wssServerOptions['cert'] = fs.readFileSync(wssGatewayConfig.server.certFile)
     }
-    const WSSServer = new ws.WebSocketServer(wssServerOptions);
+    const WSSServer = new WebSocketServer(wssServerOptions);
     console.log(`WS${wssGatewayConfig.server.unsecure ? '': 'S'}  server created for ${wssGatewayConfig.server.listenHost}:${wssGatewayConfig.server.listenPort}`)
 
     startRedis(wssGatewayConfig).then((rediscnx) => {
diff --git a/wssGatewayConfig.json b/wssGatewayConfig.json
index b9cb9ac..c17b144 100644
--- a/wssGatewayConfig.json
+++ b/wssGatewayConfig.json
@@ -2,12 +2,12 @@
     "serviceName": "wssGateway",
     "server": {
         "listenHost": "0.0.0.0",
-        "listenPort": 4443,
+        "listenPort": 3999,
         "listenPath": "/msgbus",
         "keepAliveInterval": "30",
         "keepAliveTimeout": "5",
-        "certFile": "/etc/letsencrypt/live/eismea.internike.com/fullchain.pem",
-        "certKeyFile": "/etc/letsencrypt/live/eismea.internike.com/privkey.pem",
+        "certFile": "/etc/letsencrypt/live/42.internike.com/fullchain.pem",
+        "certKeyFile": "/etc/letsencrypt/live/42.internike.com/privkey.pem",
         "challengeExpiration": 20,
         "unsecure": false,
         "healthCheckPath": "/status",
diff --git a/wssServer.js b/wssServer.js
index cc04af9..ac0e1a6 100644
--- a/wssServer.js
+++ b/wssServer.js
@@ -1,8 +1,10 @@
-const AccesRights = require('./accesRights')
-const crypto = require('crypto')
-const WssConnexion = require('./wssConnexion')
+import {AccesRights} from './accesRights.js'
+import crypto from 'crypto'
+import {WssConnexion} from './wssConnexion.js'
+import session from 'express-session'
+import connectMySQL from 'express-mysql-session'
 
-module.exports = class wssServer {
+export class wssServer {
     
     constructor(configHelper, WSSServer, REDIScnx, debug) {
         this.debug = debug