Create backend

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

back/.eslintrc.json

@@ -0,0 +1,27 @@
+{
+    "root": true,
+    "env": {
+        "browser": true,
+        "es6": true,
+        "node": true
+    },
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/eslint-recommended"
+    ],
+    "globals": {
+        "Atomics": "readonly",
+        "SharedArrayBuffer": "readonly"
+    },
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": {
+        "ecmaVersion": 2018,
+        "sourceType": "module"
+    },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+        "no-unused-vars": "off"
+    }
+}

back/.gitignore

@@ -0,0 +1,3 @@
+/node_modules/
+/dist/bundle.js
+/yarn-error.log

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"
+  }
+}

back/server.ts

@@ -0,0 +1,3 @@
+// lib/server.ts
+import App from "./src/App";
+App.listen(8080, () => console.log(`Example app listening on port 8080!`))

back/src/App.ts

@@ -0,0 +1,26 @@
+// lib/app.ts
+import {IoSocketController} from "./Controller/IoSocketController";
+import express from "express";
+import {Application} from 'express';
+import bodyParser = require('body-parser');
+import * as http from "http";
+
+class App {
+    public app: Application;
+    public server: http.Server;
+    public ioSocketController: IoSocketController;
+
+    constructor() {
+        this.app = express();
+        this.config();
+        this.server = http.createServer(this.app);
+        this.ioSocketController = new IoSocketController(this.server);
+    }
+
+    private config(): void {
+        this.app.use(bodyParser.json());
+        this.app.use(bodyParser.urlencoded({extended: false}));
+    }
+}
+
+export default new App().server;

back/src/Controller/IoSocketController.ts

@@ -0,0 +1,30 @@
+import socketIO = require('socket.io');
+import {Socket} from "socket.io";
+import * as http from "http";
+import {JoinRoomMessage} from "@Model/Websocket/JoinRoomMessage";
+
+export class IoSocketController{
+    Io: socketIO.Server;
+    constructor(server : http.Server) {
+        this.Io = socketIO(server);
+        this.ioConnection();
+    }
+
+    ioConnection() {
+        this.Io.on('connection',  (socket: Socket) => {
+            //TODO check token access
+
+            /*join-rom event permit to join one room.
+                message :
+                    userId : user identification
+                    roomId: room identification
+                    positionXUser: user x position map
+                    positionYUser: user y position on map
+            */
+            socket.on('join-room', (message : JoinRoomMessage) => {
+                socket.join(message.roomId);
+                socket.to(message.roomId).emit('join-room', message.toString());
+            });
+        });
+    }
+}

back/src/Model/Websocket/JoinRoomMessage.ts

@@ -0,0 +1,23 @@
+export class JoinRoomMessage {
+    userId: string;
+    roomId: string;
+    positionXUser: string;
+    positionYUser: string;
+
+    constructor(message: string) {
+        let data = JSON.parse(message);
+        this.userId = data.userId;
+        this.roomId = data.roomId;
+        this.positionXUser = data.positionXUser;
+        this.positionYUser = data.positionYUser;
+    }
+
+    toString(){
+        return JSON.stringify({
+            userId: this.userId,
+            roomId: this.roomId,
+            positionXUser: this.positionXUser,
+            positionYUser: this.positionYUser
+        })
+    }
+}

back/tsconfig.json

@@ -0,0 +1,71 @@
+{
+  "compilerOptions": {
+    "experimentalDecorators": true,
+    /* Basic Options */
+    // "incremental": true,                   /* Enable incremental compilation */
+    "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
+    // "lib": [],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    "outDir": "./dist",                        /* Redirect output structure to the directory. */
+    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "composite": true,                     /* Enable project compilation */
+    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                           /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                /* Report errors on unused locals. */
+    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    "baseUrl": "src",
+    "paths": {
+      "@Controller": ["Controller/*"],
+      "@Model": ["Model/*"]
+    },                                        /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Advanced Options */
+    "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
+  }
+}

docker-compose.yaml

@@ -23,3 +23,14 @@ services:
     labels:
       - "traefik.http.routers.front.rule=Host(`workadventure.localhost`)"
       - "traefik.http.services.front.loadbalancer.server.port=8080"
+
+  back:
+    image: thecodingmachine/nodejs:12
+    command: yarn dev
+    environment:
+      STARTUP_COMMAND_1: yarn install
+    volumes:
+      - ./back:/usr/src/app
+    labels:
+      - "traefik.http.routers.back.rule=Host(`back.workadventure.localhost`)"
+      - "traefik.http.services.back.loadbalancer.server.port=8080"