Typescript Setup (NodeJS)

21. Dezember 2021 | Oliver Rademaker

NODEJS TYPESCRIPT CODE

Install Nodejs (npm)
Init Project
```
npm init
```

Install Typescript and TSlint into the project

npm install --save-dev --save-exact typescript tslint

Init tsconfig.json and configure

npx tsc --init

{
	"compilerOptions": {    		
        "target": "ES6",
        "lib": ["ES6"],
        "experimentalDecorators": true,
        "emitDecoratorMetadata": true,
        "module": "commonjs",
        "rootDir": "src",
        "baseUrl": "./",
            "paths": {
                "*": [
                    "node_modules/*",
                    "src/_types/*"
                ]
            },
        },
        "resolveJsonModule": true,
        "sourceMap": true,
        "outDir": "dist",
        "esModuleInterop": true,
        "forceConsistentCasingInFileNames": true,
        "strict": true,
        "skipLibCheck": true,
        "include": [
            "src/**/*.ts"
        ],
        "exclude": [
            "node_modules",
            "**/*.spec.ts"
        ]
    }

Init tslint.json and configure

npx tslint --init

{
	"defaultSeverity": "error",
	"extends": ["tslint:recommended"],
	"jsRules": {},
	"rules": {
		"no-console": false
	},
	"rulesDirectory": [],
    "include": ["src/**/*"],
    "exclude": ["node_modules", "**/*.spec.ts"]
}

Update package.json

{
    "scripts": {
        "start": "tsc && node dist/app.js"
     },
}