| 1 | import { HttpAdapter } from '../interfaces/http-adapter.interface' |
| 2 | import { ExpressHttpAdapter } from './express-http.adapter' |
| 3 | |
| 4 | /** |
| 5 | * Factory for creating HTTP adapters based on the detected framework |
| 6 | */ |
| 7 | export class HttpAdapterFactory { |
| 8 | private static expressAdapter: ExpressHttpAdapter | null = null |
| 9 | |
| 10 | /** |
| 11 | * Get the appropriate HTTP adapter for the given request/response objects |
| 12 | */ |
| 13 | static getAdapter(req: any, res: any): HttpAdapter { |
| 14 | // Check if it's Express by looking for Express-specific properties |
| 15 | if (this.isExpressRequest(req) && this.isExpressResponse(res)) { |
| 16 | if (!this.expressAdapter) { |
| 17 | this.expressAdapter = new ExpressHttpAdapter() |
| 18 | } |
| 19 | return this.expressAdapter |
| 20 | } |
| 21 | |
| 22 | // Default to Express adapter for backward compatibility |
| 23 | if (!this.expressAdapter) { |
| 24 | this.expressAdapter = new ExpressHttpAdapter() |
| 25 | } |
| 26 | return this.expressAdapter |
| 27 | } |
| 28 | |
| 29 | /** |
| 30 | * Check if the request object is from Express |
| 31 | */ |
| 32 | private static isExpressRequest(req: any): boolean { |
| 33 | return Boolean( |
| 34 | req |
| 35 | && typeof req === 'object' |
| 36 | && typeof req.get === 'function' |
| 37 | && req.method !== undefined |
| 38 | && req.url !== undefined |
| 39 | && !req.routeOptions, // Fastify-specific property |
| 40 | ) |
| 41 | } |
| 42 | |
| 43 | /** |
| 44 | * Check if the response object is from Express |
| 45 | */ |
| 46 | private static isExpressResponse(res: any): boolean { |
| 47 | return Boolean( |
| 48 | res |
| 49 | && typeof res === 'object' |
| 50 | && typeof res.status === 'function' |
| 51 | && typeof res.json === 'function' |
| 52 | && typeof res.send === 'function' |
| 53 | && res.headersSent !== undefined |
| 54 | && !res.sent, // Fastify-specific property |
| 55 | ) |
| 56 | } |
| 57 | } |
| 58 |