Router

Typeix Router is very fast lightweight wrapper around Node.js http, https, http2 servers, which supports dynamic routing, regex name capturing in route definitions, error handling on each route (global, local error handlers).

Installing:

npm i @typeix/di @typeix/router --save
npm i @types/node --save-dev

Resolved or matched route will be delivered in route handler

interface IResolvedRoute {
  params: { [key: string]: string };
  headers: { [key: string]: any };
  url: URI;
  path: string;
  method: string;
}

Router API:

class Router {
    static parseURI(path: string, headers: { [key: string]: any; }, defaultHost?: string): URI;
    addRules(rules: Array<IRouteConfig>): void;
    addRule(Class: TRoute, config?: IRouteConfig): void;
    pipe(server: Server): Server;
    get(path: string, handler: IRouteHandler): this;
    head(path: string, handler: IRouteHandler): this;
    post(path: string, handler: IRouteHandler): this;
    put(path: string, handler: IRouteHandler): this;
    delete(path: string, handler: IRouteHandler): this;
    connect(path: string, handler: IRouteHandler): this;
    options(path: string, handler: IRouteHandler): this;
    trace(path: string, handler: IRouteHandler): this;
    patch(path: string, handler: IRouteHandler): this;
    onError(path: string, handler: IRouteHandler): this;
}

Defining Routes

Creating routes can be done via REST method api or via addRules, dynamic router can be implemented via addRule but requires implementation of custom RouteRule.

import {Router, Injector} from "@typeix/router";
import {createServer, IncomingMessage, ServerResponse} from "http";
import {readFileSync} from "fs";

const router: Router = Injector.createAndResolve(Router, []).get(Router);

router.get("/", (injector: Injector, route: IResolvedRoute) => {});
router.post("/api/users", (injector: Injector, route: IResolvedRoute) => {});
router.get("/api/users", (injector: Injector, route: IResolvedRoute) => {});
router.get("/api/users/<id:(\\d+)>", (injector: Injector, route: IResolvedRoute) => {
    return {
        id: route.params.id,
        name: "Igor"
    }
});
router.patch("/api/users/<id:(\\d+)>", async (injector: Injector, route: IResolvedRoute) => {
    const request = injector.get(IncomingMessage);
    return {
        id: route.params.id,
        name: "Igor"
    }
});
router.get("/favicon.ico", (injector: Injector, route: IResolvedRoute) => {
    const response = injector.get(ServerResponse);
    response.end(readFileSync("./public/favicon.ico"));
});

Error Handling

If any errors is thrown in route handler, router will forward exception to internal route handler.

import {Router, Injector} from "@typeix/router";
import {createServer, IncomingMessage, ServerResponse} from "http";

const router: Router = Injector.createAndResolve(Router, []).get(Router);

router.get("/",  (injector: Injector, route: IResolvedRoute) => {});
router.post("/api/users",  (injector: Injector, route: IResolvedRoute) => {});
router.get("/api/users",  (injector: Injector, route: IResolvedRoute) => {});
router.get("/api/users/<id:(\\d+)>", (injector: Injector, route: IResolvedRoute) => {});
router.patch("/api/users/<id:(\\d+)>", (injector: Injector, route: IResolvedRoute) => {});

router.onError("/api/(.*)", (injector: Injector, route: IResolvedRoute) => {
    return {...route, handler: "[Function handler]", statusCode: response.statusCode};
});

router.onError("(.*)", (injector: Injector, route: IResolvedRoute) => {
    return "GLOBAL HANDLER";
});

const server = router.pipe(createServer());
server.listen(4000);

Supported Servers

Router supports all implemented servers in Node.js however http2 is implemented via http2 compatibility API `Http2ServerRequest, Http2ServerResponse

HTTP

import {Router, Injector} from "@typeix/router";
import {createServer, IncomingMessage, ServerResponse} from "http";

const router: Router = Injector.createAndResolve(Router, []).get(Router);
router.get("/", (injector: Injector, route: IResolvedRoute) => {
    const request = injector.get(IncomingMessage);
    const response = injector.get(ServerResponse);
});

const server = router.pipe(createServer());
server.listen(4000);

HTTPS

import {Router, Injector} from "@typeix/router";
import {createServer, IncomingMessage, ServerResponse} from "https";
import {readFileSync} from "fs";

const router: Router = Injector.createAndResolve(Router, []).get(Router);
router.get("/", (injector: Injector, route: IResolvedRoute) => {
    const request = injector.get(IncomingMessage);
    const response = injector.get(ServerResponse);
});

const options = {
    key: readFileSync('localhost-privkey.pem'),
    cert: readFileSync('localhost-cert.pem')
};

const server = router.pipe(createServer(options));
server.listen(4000);

HTTP2

import {Router, Injector} from "@typeix/router";
import {createServer, Http2ServerRequest, Http2ServerResponse} from "http2";
import {readFileSync} from "fs";

const router: Router = Injector.createAndResolve(Router, []).get(Router);
router.get("/", (injector: Injector, route: IResolvedRoute) => {
    const request = injector.get(Http2ServerRequest);
    const response = injector.get(Http2ServerResponse);
});

const options = {
    key: readFileSync('localhost-privkey.pem'),
    cert: readFileSync('localhost-cert.pem')
};

const server = router.pipe(createServer(options));
server.listen(4000);