无法在GO中将JSON作为正文发送给HTTP POST请求

Question

When i make the POST request using the below GO Function. I get a invalid json on the server side.

If i send static json for example

var jsonprep = []byte(`{"username":"[e-mail]","password":"xyz123"}`) 

it does work instead of

var jsonprep string = "`{username:"+username+",password:"+password+"}`"

.

func makeHttpPostReq(url string, username string, password string){

    client := http.Client{}


    var jsonprep string = "`{username:"+username+",password:"+password+"}`"

    var jsonStr = []byte(jsonprep)

    req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
    req.Header.Set("Content-Type", "application/json")

    resp, err := client.Do(req)
    if err != nil {
         fmt.Println("Unable to reach the server.")
    } else {
         body, _ := ioutil.ReadAll(resp.Body)
         fmt.Println("body=", string(body))
    }

}

Answer 1

You've got your quoting wrong:

http://play.golang.org/p/PueWyQ1atq

var jsonprep string = "`{username:"+username+",password:"+password+"}`"

===> `{username:Bob,password:pass}`

You meant:

http://play.golang.org/p/LMuwxArf8G

var jsonprep string = `{"username":"`+username+`","password":"`+password+`"}`
===> {"username":"Bob","password":"pass"}