Learn how to connect modules across different systems with clean APIs and secure communication patterns.
Use dependency injection to make module coupling explicit and testable.
Define clear contracts between modules using strongly-typed interfaces.
class FileService { constructor(private readonly apiClient: APIClient) {} upload(file: File): Promise<void> { this.apiClient.post('/upload', file); } } // Usage with dependency injection const apiClient = new APIClient({ baseUrl: 'https://api.modules.io'}); const fileService = new FileService(apiClient);
// Event channel const ModuleChannel = { on: (event: string, callback: Function) => {...}, emit: (event: string, data: any) => {...} }; // Module A ModuleChannel.on('file-ready', (filename) => { console.log('Received file:', filename); }); // Module B ModuleChannel.emit('file-ready', 'report.pdf');
Always version your public APIs to ensure backward compatibility.
/api/v2/upload
Implement token-based authentication and input validation between modules.
Authorization: Bearer {token}
Content-Type: application/json