Пожалуйста, позвольте мне поделиться с вами базовым кодом для создания ваших маршрутов с использованием node.js:
/*
*primary file for the api
*
* * */
//dependencies
const http = require('http')
const url =require('url')
const StringDecoder = require('string_decoder').StringDecoder
const fs = require('fs')
//the server should respond to all requests with a string
//a.1. Instantiating the HTTP server
const httpServer = http.createServer((req,res)=>{
unifiedServer(req,res)
})
//start the HTTP server
httpServer.listen(3000,()=>{
console.log(`The server is listening on port 3000`)
})
//All the server logic for the http
const unifiedServer = (req,res)=>{
//Get the url and parse it
const parsedUrl = url.parse(req.url,true)//true:indicates to parse the query string
//which means to set the parsedUrl.query value at the equivalent as if we had
//sent this data to the query string module, so really we are using two modules
//in one
//Get the path
const path = parsedUrl.pathname//the path of the user request
//http://localhost:3000/foo...
const trimedPath = path.replace(/^\/+|\/+$/g,'')
//Get the query string as an object:
const queryStringObject = parsedUrl.query //?mnp=abd
//Get the http method:
const method = req.method.toLowerCase() //get, post
//Get the headers as an object
const headers = req.headers //{foo:bar,fizz:buzz,...}
//Get the payload, if any is the text: 'fdsfasdfsadfsd'
const decoder = new StringDecoder('utf-8')//utf-8 is what kind of
//charset or encoding it can expect
//payloads, as part of the http request, come in to the http server as a string
//so we need to collect that string as it comes in and then when the string tells
//us what are the end cover last that into one covering thing before we can
//figure out what the payload is
let buffer = ''//string where we are going to append the incoming palyload as it comes
req.on('data',data=>{
buffer += decoder.write(data)
})//when the request emit the event called 'data' (so, ON the event
//called data)
req.on('end',()=>{//called regardless if it has a payload or not
buffer += decoder.end()
//choose the handler this request should go to. If one is not found use
//not found handler
const chosenHandler = typeof(router[trimedPath]) !== 'undefined' ?
router[trimedPath] : handlers.notFound
//contruct the data Object to send to the handler:
const data = {
'trimedPath':trimedPath,
'queryStringObject':queryStringObject,
'method':method,
'headers':headers,
'payload':buffer
}
//route the request to the handler specified in the router
chosenHandler(data,(statusCode,payload)=>{
console.log(statusCode,payload)//es la data que esta en la
//funcion sample del objeto handler
//use the status code CALLED BACK by the handler or default
//to 200
statusCode = typeof(statusCode) == 'number' ? statusCode:200
//use the payload called back by the handler or default to and
//empty object
payload = typeof(payload)=='object' ? payload:{}
//convert the payload to a string
const palyloadString = JSON.stringify(payload)
//return the response
res.setHeader('content-Type','application/json')//telling ...
//that we are going to return an object:
//content-Type is the key ; application/json is the value
res.writeHead(statusCode)//usin the buil in function that comes on every
//response object received by the http server to write the status code
//now that the request has finished
//Send the response
res.end(palyloadString)
//Log the request path
console.log(`Returning this response` , statusCode , palyloadString)
})
})
//console.log(`Request received with these headers: ` , headers )
//console.log(`Request received on path: ${trimedPath} with method ${method}
//and with this query string parameters `, queryStringObject)
}
//define the handlers
const handlers = {}
//ping handler
handlers.ping = (data,callback)=>{
callback(200)
}
//ping handler
handlers.hello = (data,callback)=>{
callback(600,{'greeting':'hello world'})
}
//Not found handler
handlers.notFound = (data,callback)=>{
callback(404)//does not need a payload
}
//define a request router
const router = {
'ping':handlers.ping,
'hello':handlers.hello
}
Удачи!