访问链接后获取输出字符串

Question

I am writing a program by Go. In this program, I access to a website and in this website, it will print a string. I want to get this string for next process. For example:

I access by curl and the returned string will like that:

curl localhost:4000
abc_example

I need to get "abc_example" for next process in my program. Now, this problem was solved.

Actually, my result will be a JSON like that:

{"name":"xyz_example"}

How can I parse this string and just get "xyz_example"

I am a newbie in Go. May you help me. Thank you!

Answer 1

Here's an example of reading the response from an HTTP request. I would recommend reading up on the documentation for the http package, and maybe a simple tutorial like this one.

package main

import (
    "fmt"
    "net/http"
    "io/ioutil"
)

func main() {
    //make a request
    response, err := http.Get("https://mdtf.org")
    if err != nil {
      fmt.Println("error making request: ", err)
      return
    }

    //make sure the response body gets closed
    defer response.Body.Close()

    //read the bytes
    responseBytes, err := ioutil.ReadAll(response.Body)
    if err != nil {
      fmt.Println("error reading response bytes: ", err)
      return
    }

    //turn the response bytes into a string
    responseString := string(responseBytes)

    //print it or something
    fmt.Println(responseString)
}