[go practical basis] how can gin get the request parameters of get and post

Catalog

One 、 brief introduction

Two 、 Knowledge point

3、 ... and 、 Rookie actual combat

1、 establish go file  

2、 Running results

GET Method , Add routing parameters and callbacks

POST Method , json Format

POST Method , Add routing parameters and callbacks , Filling parameters

---

One 、 brief introduction

Actual combat scene : How to use gin obtain GET and POST Request parameters for

Two 、 Knowledge point

• gin route
• http Status code
• obtain GET Request parameters
• obtain POST Request parameters
• obtain POST Form Request parameters

3、 ... and 、 Rookie actual combat

Make arrangements now ！

1、 establish go file  

package main

//  Import package 
import (
	"bytes"
	"fmt"
	"github.com/gin-gonic/gin"
	"io/ioutil"
	"net/http"
	"runtime"
)

//  The main function 
func main() {
	//  Print using built-in functions 
	println("Hello", " Rookie actual combat ")
	println(" Actual combat scene : ", "gin  How to get  GET  Request parameters ")

	//  initialization 
	r := gin.Default()

	// GET  Method ,  Add routing parameters and callbacks 
	r.GET("/g", func(c *gin.Context) {
		name := c.Query("name")
		//  Default parameters 
		age := c.DefaultQuery("age", "18")
		//  Back to  code  and   Corresponding parameter Galaxy 
		c.String(http.StatusOK, "%s - %s \n", name, age)
	})

	// POST  Method ,  Add routing parameters and callbacks 
	r.POST("/p", func(c *gin.Context) {
		bodyByts, err := ioutil.ReadAll(c.Request.Body)

		if err != nil {
			//  Return error message 
			c.String(http.StatusBadRequest, err.Error())
			//  Execute exit 
			c.Abort()
		}

		//  Back to  code  and   Corresponding parameter Galaxy 
		c.String(http.StatusOK, "%s \n", string(bodyByts))
	})

	// POST  Method ,  Add routing parameters and callbacks ,  Filling parameters 
	r.POST("/p1", func(c *gin.Context) {
		bodyByts, err := ioutil.ReadAll(c.Request.Body)

		if err != nil {
			//  Return error message 
			c.String(http.StatusBadRequest, err.Error())
			//  Execute exit 
			c.Abort()
		}

		c.Request.Body = ioutil.NopCloser(bytes.NewBuffer(bodyByts))

		name := c.PostForm("name")
		age := c.DefaultPostForm("age", "18")

		//  Back to  code  and   Corresponding parameter Galaxy 
		c.String(http.StatusOK, "%s,%s,%s\n", name, age, string(bodyByts))
	})

	//  Use package functions to print 
	fmt.Printf(" edition : %s \n", runtime.Version())

	//  Start the framework program ,  Default  8080  port 
	r.Run()

}

// curl  Verification mode 
// g
// curl -X GET "http://127.0.0.1:8080/g?name=kitty"
// curl -X GET "http://127.0.0.1:8080/g?name=kitty&age=21"

// p
// curl -X POST "http://127.0.0.1:8080/p" -d '{"name":" Hello ,  Rookie actual combat "}'

// p1
// curl -X POST "http://127.0.0.1:8080/p1" -d 'name=bob'
// curl -X POST "http://127.0.0.1:8080/p1" -d 'name=bob&age=17'

2、 Running results

Hello Rookie actual combat

Actual combat scene : gin How to get GET and POST Request parameters for

[GIN-debug] Listening and serving HTTP on :8080

• GET Method , Add routing parameters and callbacks

 

• POST Method , json Format

• POST Method , Add routing parameters and callbacks , Filling parameters

  Rookie actual combat , Continuous learning !