Create backend

- NodeJs
 - Express
 - Socket.io
 - Eslint
 - TypeScript

back/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "workadventureback",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "tsc": "tsc",
+    "dev": "ts-node-dev --respawn --transpileOnly ./server.ts",
+    "prod": "tsc && node ./dist/server.js",
+    "lint": "node_modules/.bin/eslint src/ . --ext .ts"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/thecodingmachine/workadventure.git"
+  },
+  "author": "g.parant@thecodingmachine.com",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/thecodingmachine/workadventure/issues"
+  },
+  "homepage": "https://github.com/thecodingmachine/workadventure#readme",
+  "dependencies": {
+    "@types/express": "^4.17.4",
+    "@types/socket.io": "^2.1.4",
+    "body-parser": "^1.19.0",
+    "express": "^4.17.1",
+    "socket.io": "^2.3.0",
+    "ts-node-dev": "^1.0.0-pre.44",
+    "typescript": "^3.8.3"
+  },
+  "devDependencies": {
+    "@typescript-eslint/eslint-plugin": "^2.26.0",
+    "@typescript-eslint/parser": "^2.26.0",
+    "eslint": "^6.8.0"
+  }
+}