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tat-router

v1.0.1

Published

A lightweight routing library.

Downloads

3

Readme

TAT Router

TAT Router is a lightweight Node.js library for handling HTTP requests based on the URL path and HTTP method.

Installation

npm install tat-router

Usage

Creating a router instance

const Router = require("router");

const router = new Router((res) => {
  res.writeHead(404, { "Content-Type": "text/plain" });
  res.write("404 - Not found!")
  res.end();
});

Adding routes

router.add("GET", "/", (res)=>{
  res.writeHead(200, {"Content-Type": "text/plain"});
  res.write("Hello world!");
  res.end();
});

router.add("GET", "/users/:name", (res, params) => {
  const name = params.name;

  res.writeHead(200, {"Content-Type": "text/plain"});
  res.write(`Hello ${name}!`);
  res.end();
});

router.add("GET", "/users/:userId/posts/:postId?", (res, params)=>{
  const userId = params.userId;
  const postId = params.postId || "latest";

  res.writeHead(200, { "Content-Type": "application/json" });
  res.write(`{userId: "${userId}", postId: "${postId}"}`);
  res.end();
});

Handling requests

const req = {
  method: "GET",
  url: "http://localhost"
};

router.navigate(req, res);
// Hello world!
const req = {
  method: "GET",
  url: "http://localhost/users/fatih"
};

router.navigate(req, res);
// Hello fatih!
const req = {
  method: "GET",
  url: "http://localhost/users/12/posts/"
};

router.navigate(req, res);
// {userId: "12", postId: "latest"}
const req = {
  method: "GET",
  url: "http://localhost/users/12/posts/34"
};

router.navigate(req, res);
// {userId: "12", postId: "34"}

Connecting with HTTP module

http.createServer((req, res) => {
    router.navigate(req, res);
}).listen(3000);

API

Router(notFoundHandler)

  • notFoundHandler: Function to be executed when no matching route is found.

Represents a router that can handle HTTP requests with specified routes and methods.

router.add(method, pattern, handler)

  • method: HTTP method of the route.
  • pattern: URL path of the route (e.g., "/users/:id").
  • handler: Function to be executed when the route is matched.

Adds a new route to the router with specified method, path and handler.

router.navigate(method, url)

  • req: The IncomingMessage object represents the request to the server.
  • res: The ServerResponse object represents the writable stream back to the client.

Navigates to the route that matches.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT