Include base eslint configuration for backend projects.

Author: dimeloper

.eslintrc.js

@@ -0,0 +1,30 @@
+module.exports = {
+	root: true,
+	env: {
+		browser: true,
+		commonjs: true,
+		es2021: true
+	},
+	overrides: [
+		{
+			env: {
+				node: true
+			},
+			files: [
+				'.eslintrc.{js,cjs}'
+			],
+			parserOptions: {
+				sourceType: 'script'
+			}
+		}
+	],
+	parserOptions: {
+		ecmaVersion: 'latest'
+	},
+	rules: {
+		semi: [2, 'always'],
+		"no-unused-vars": ["error", { "vars": "all", "args": "none" }],
+		quotes: ["error", "single", { "avoidEscape": true }],
+		"space-before-function-paren": ["error", "never"]
+	}
+}

.pre-commit-config.yaml

@@ -32,3 +32,18 @@ repos:
         # Spell checks files, ignoring specific words if needed
       - id: codespell
         args: ['--ignore-words-list=seperated']
+
+  - repo: https://github.com/pre-commit/mirrors-eslint
+    rev: v8.52.0
+    hooks:
+      - id: eslint
+        exclude: 'frontend/.*|.eslintrc.js'
+        files: \.[jt]sx?$  # *.js, *.jsx, *.ts and *.tsx
+        types: [file]
+        additional_dependencies:
+          - eslint@8.52.0
+          - eslint-config-standard@17.1.0
+          - eslint-plugin-import@2.29.0
+          - eslint-plugin-n@16.2.0
+          - eslint-plugin-promise@6.1.1
+          - eslint-config-next@13.5.5

backend/node-js-express/README.md

@@ -1,14 +1,21 @@
 # Node-Express Seeds  (JavaScript Version)
 
 This repository contains multiple seeds (starter templates) for Node.js projects using Express.js with different
-configurations and additions.
+configurations and features as well as persistence options.
 
 ## Folder Structure
 
 - **node-js-express-starter**: This contains a basic Node-Express seed to get you started with a simple "Hello, World!"
   API.
 - **node-js-express-mongoose**: This seed incorporates Mongoose, enabling you to quickly start a project with MongoDB
   integration.
+- **node-js-express-postgresql**: This seed incorporates Postgres, enabling you to quickly start a project with
+  PostgreSQL integration.
+
+## Code Style
+
+The code style of these projects should be enforced by eslint to avoid messing up with your code editor configuration.
+Make sure to check the existing node-js seeds, to get an idea of the basic eslint configuration that you can extend.
 
 ## Getting Started
 

backend/node-js-express/node-js-express-mongoose/.eslintrc.js

@@ -0,0 +1,25 @@
+module.exports = {
+	env: {
+		browser: true,
+		commonjs: true,
+		es2021: true
+	},
+	// remove the following line for local development
+	extends: '../../../.eslintrc.js',
+	overrides: [
+		{
+			env: {
+				node: true
+			},
+			files: [
+				'.eslintrc.{js,cjs}'
+			],
+			parserOptions: {
+				sourceType: 'script'
+			}
+		}
+	],
+	parserOptions: {
+		ecmaVersion: 'latest'
+	}
+};

backend/node-js-express/node-js-express-mongoose/app/app.js

@@ -10,33 +10,34 @@ const HealthController = require('./health/health.controller');
 const UsersController = require('./user/user.controller');
 
 class App {
-    static bootstrap() {
-        return new App();
-    }
-
-    constructor() {
-        // create express js application
-        this.app = express();
-
-        // Connect to MongoDB
-        dbConfig.connect();
-
-        // add routes
-        this.routes();
-    }
-
-    dbConnect(){
-        dbConfig.connect();
-    }
-    routes() {
-        this.app.use('/', new RootController().getRouter());
-        this.app.use('/healthz', new HealthController().getRouter());
-        this.app.use(`/users`, new UsersController().getRouter());
-    }
+  static bootstrap() {
+    return new App();
+  }
+
+  constructor() {
+    // create express js application
+    this.app = express();
+
+    // Connect to MongoDB
+    dbConfig.connect();
+
+    // add routes
+    this.routes();
+  }
+
+  dbConnect() {
+    dbConfig.connect();
+  }
+
+  routes() {
+    this.app.use('/', new RootController().getRouter());
+    this.app.use('/healthz', new HealthController().getRouter());
+    this.app.use('/users', new UsersController().getRouter());
+  }
 }
 
 function expressApp() {
-    return new App().app;
+  return new App().app;
 }
 
 module.exports = expressApp;

backend/node-js-express/node-js-express-mongoose/app/config/database.js

@@ -1,41 +1,41 @@
 const mongoose = require('mongoose');
 
 const dbConfig = {
-    connect: function() {
-        const MONGO_URI = process.env.MONGO_URI || 'mongodb://localhost:27017/test'; // Default URI
+  connect: function() {
+    const MONGO_URI = process.env.MONGO_URI || 'mongodb://localhost:27017/test'; // Default URI
 
-        mongoose.connect(MONGO_URI, {
-            useUnifiedTopology: true,
-            useNewUrlParser: true,
-            })
-            .then(() => {
-                console.log('Successfully connected to MongoDB.');
-            })
-            .catch(error => {
-                console.error('Error connecting to MongoDB:', error);
-                process.exit(1);
-            });
+    mongoose.connect(MONGO_URI, {
+      useUnifiedTopology: true,
+      useNewUrlParser: true
+    })
+      .then(() => {
+        console.log('Successfully connected to MongoDB.');
+      })
+      .catch(error => {
+        console.error('Error connecting to MongoDB:', error);
+        process.exit(1);
+      });
 
-        // Setting up mongoose event handlers
-        mongoose.connection.on('error', err => {
-            console.error('MongoDB connection error:', err);
-        });
+    // Setting up mongoose event handlers
+    mongoose.connection.on('error', err => {
+      console.error('MongoDB connection error:', err);
+    });
 
-        mongoose.connection.on('disconnected', () => {
-            console.log('MongoDB disconnected.');
-        });
+    mongoose.connection.on('disconnected', () => {
+      console.log('MongoDB disconnected.');
+    });
 
-        process.on('SIGINT', async () => {
-            try {
-                await mongoose.connection.close();
-                console.log('MongoDB connection closed due to app termination.');
-                process.exit(0);
-            } catch (err) {
-                console.error('Error during database disconnection:', err);
-                process.exit(1);
-            }
-        });
-    }
+    process.on('SIGINT', async() => {
+      try {
+        await mongoose.connection.close();
+        console.log('MongoDB connection closed due to app termination.');
+        process.exit(0);
+      } catch (err) {
+        console.error('Error during database disconnection:', err);
+        process.exit(1);
+      }
+    });
+  }
 };
 
 module.exports = dbConfig;

backend/node-js-express/node-js-express-mongoose/app/health/health.controller.js

@@ -3,21 +3,21 @@ const express = require('express');
 const HealthService = require('./health.service');
 
 class HealthController {
-    constructor() {
-        this.router = express.Router();
+  constructor() {
+    this.router = express.Router();
 
-        // Setting the routes for the greeting endpoint group
-        this.router.get('/', this.health.bind(this)); // Binding is necessary for 'this' to refer to the class instance
-    }
+    // Setting the routes for the greeting endpoint group
+    this.router.get('/', this.health.bind(this)); // Binding is necessary for 'this' to refer to the class instance
+  }
 
-    getRouter() {
-        return this.router;
-    }
+  getRouter() {
+    return this.router;
+  }
 
-    async health(request, response, next) {
-        const message = HealthService.health();
-        response.status(200).send(message);
-    }
+  async health(request, response, next) {
+    const message = HealthService.health();
+    response.status(200).send(message);
+  }
 }
 
 module.exports = HealthController;

backend/node-js-express/node-js-express-mongoose/app/health/health.service.js

@@ -1,7 +1,7 @@
 class HealthService {
-    health() {
-        return "I am healthy!";
-    }
+  health() {
+    return 'I am healthy!';
+  }
 }
 
-module.exports = new HealthService();  // Exporting an instance of the service
+module.exports = new HealthService(); // Exporting an instance of the service

backend/node-js-express/node-js-express-mongoose/app/root/root.controller.js

@@ -2,21 +2,21 @@ const express = require('express');
 const RootService = require('./root.service');
 
 class RootController {
-    constructor() {
-        this.router = express.Router();
+  constructor() {
+    this.router = express.Router();
 
-        // Setting the routes for the root endpoint group
-        this.router.get('/', this.info.bind(this)); // Binding is necessary for 'this' to refer to the class instance
-    }
+    // Setting the routes for the root endpoint group
+    this.router.get('/', this.info.bind(this)); // Binding is necessary for 'this' to refer to the class instance
+  }
 
-    getRouter() {
-        return this.router;
-    }
+  getRouter() {
+    return this.router;
+  }
 
-    async info(request, response, next) {
-        const message = RootService.info();
-        response.status(200).send(message);
-    }
+  async info(request, response, next) {
+    const message = RootService.info();
+    response.status(200).send(message);
+  }
 }
 
 module.exports = RootController;

backend/node-js-express/node-js-express-mongoose/app/root/root.service.js

@@ -1,7 +1,7 @@
 class RootService {
-    info() {
-        return "Hello, World!";
-    }
+  info() {
+    return 'Hello, World!';
+  }
 }
 
-module.exports = new RootService();  // Exporting an instance of the service
+module.exports = new RootService(); // Exporting an instance of the service