src/api/Route.ts

import { Request, Response as ExpressResponse } from "express";
import Controller from "./Controller";
import Response from "./Response";

export default class Route {
    constructor(public readonly method: string, public readonly path: string, public readonly callback: [Controller, string], public middlewareList: Array<Function> = []) {
        this.middlewareList = [...this.middlewareList, ...callback[0].globalMiddleware()];
    }

    middleware(...middleware: Function[]) {
        this.middlewareList = [...this.middlewareList, ...middleware];
        return this;
    }

    async getCallbackFunction(...args: any[]) {
        const [controller, method] = this.callback;
        return async (req: Request, res: ExpressResponse) => {
            let output = ((controller)[method as keyof typeof controller] as any).call(controller, req, res, ...args);

            if (output instanceof Promise) {
                output = await output;
            }

            if (output instanceof Response) {
                res.status(output.status);

                for (const header in output.headers) {
                    res.setHeader(header, output.headers[header]);
                }

                if (typeof output.body === 'object') {
                    res.json(output.body);
                }
                else {
                    res.send(output.body);
                }
            }
            else {
                if (typeof output === 'object') {
                    return res.json(output);
                }
    
                return res.send(output);
            }
        };
    }
}
1	import { Request, Response as ExpressResponse } from "express";
2	import Controller from "./Controller";
3	import Response from "./Response";
4
5	export default class Route {
6	constructor(public readonly method: string, public readonly path: string, public readonly callback: [Controller, string], public middlewareList: Array<Function> = []) {
7	this.middlewareList = [...this.middlewareList, ...callback[0].globalMiddleware()];
8	}
9
10	middleware(...middleware: Function[]) {
11	this.middlewareList = [...this.middlewareList, ...middleware];
12	return this;
13	}
14
15	async getCallbackFunction(...args: any[]) {
16	const [controller, method] = this.callback;
17	return async (req: Request, res: ExpressResponse) => {
18	let output = ((controller)[method as keyof typeof controller] as any).call(controller, req, res, ...args);
19
20	if (output instanceof Promise) {
21	output = await output;
22	}
23
24	if (output instanceof Response) {
25	res.status(output.status);
26
27	for (const header in output.headers) {
28	res.setHeader(header, output.headers[header]);
29	}
30
31	if (typeof output.body === 'object') {
32	res.json(output.body);
33	}
34	else {
35	res.send(output.body);
36	}
37	}
38	else {
39	if (typeof output === 'object') {
40	return res.json(output);
41	}
42
43	return res.send(output);
44	}
45	};
46	}
47	}