Express parsing HTTP requests

The first parameters of get and post are the requested path, the second parameter is the callback function that handles the request, and the callback function has two parameters req and res, which represent the request information and the response information. Path requests and corresponding fetch paths are available in the following ways:

Req.query

Get/search?q=tobi+ferret  req.query.q  //= "Tobi Ferret"  //get/shoes?order=desc&shoe[color]= Blue&shoe[type]=converse  req.query.order  //= "desc"  req.query.shoe.color  //= "Blue"  Req.query.shoe.type  //= "Converse"

Req.body

POST User[name]=tobi&user[email][email protected]  req.body.user.name  //= "Tobi"  Req.body.user.email  //= "[email protected]"  //POST {"name": "Tobi"}  req.body.name  //= " Tobi "

Req.params

GET/USER/TJ  req.params.name  //= "TJ"  //Get/file/javascripts/jquery.js  req.params[0]  / /= "Javascripts/jquery.js"  **req.param (name) **//? Name=tobi  req.param (' name ')  //= = "Tobi"  POST name=tobi  req.param (' name ')  //= = "Tobi"  ///user/tobi for/user/:name   req.param (' name ') )  //= "Tobi"

Req.query: Handling Get Requests

Req.body:: Processing Post requests

Req.params: Handling get requests in/:xxx form

Req.param (): Can handle get and post requests, but find priority from high to low to Req.params→req.body→req.query

Express parsing HTTP requests