package main

import (

    "encoding/json"

    "fmt"

    "io/ioutil"

    "net/http"

    "strings"

)

func main() {

    url := "https://xxx"

    prama := "data=123456""

    tokenRes := GetTokenReq(url, prama)

    fmt.Println(tokenRes )

}

func GetTokenReq(url string, parama string) map[string]string {

    client := &http.Client{}

    req, err := http.NewRequest("POST", url, strings.NewReader(parama))

    req.Header.Add("Content-Type", "application/x-www-form-urlencoded")

    resp, err := client.Do(req)

    if err != nil {

        fmt.Println(err)

    }

    defer resp.Body.Close()

    body, err := ioutil.ReadAll(resp.Body)

    if err != nil {

        fmt.Println(err)

    }

    jsonStr := string(body)

    fmt.Println("jsonStr", jsonStr)

    var dat map[string]string

    if err := json.Unmarshal([]byte(jsonStr), &dat); err == nil {

        fmt.Println("token", dat["token"])

    } else {

        fmt.Println("json str to struct error")

    }

    return dat

}