Router Introduction

Router - Introduction

Router is a VkrunJS module for creating endpoints (URIs) of an application that respond to client requests.

Routes are created using Router methods that correspond to HTTP methods. For example, router.get() handles GET requests and router.post() handles POST requests. After creating all the routes, it is necessary to inject the Router instance into the use method of the VkrunJS app.

Routing methods specify a callback function that is called when the application receives a request to a specified HTTP route and method. The VkrunJS app listens for requests that match the routes and methods, and when there is a match, it calls the specified callback function.

Example:

import v from "vkrun"
 
const vkrun = v.App()
const router = Router()
 
// When calling the route below it responds with the text hello world
router.get("/", (req: v.Request, res: v.Response) => {
  res.setHeader("Content-Type", "text/plain")
  res.status(200).end("Hello World!")
})
 
vkrun.use(router)
 
vkrun.server().listen(3000, () => {
  console.log("VkrunJS started on port 3000")
})

Equivalent:

import v from "vkrun"
 
const vkrun = v.App()
 
// When calling the route below it responds with the text hello world
vkrun.get("/", (req: v.Request, res: v.Response) => {
  res.setHeader("Content-Type", "text/plain")
  res.status(200).end("Hello World!")
})
 
vkrun.server().listen(3000, () => {
  console.log("VkrunJS started on port 3000")
})

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