Getting the status code from a get request in golang

Question

I'm trying to get the http status code in goland.

I'm passing the authorization token as well.

This is what I tried so far:

func StatusCode(PAGE string, AUTH string) (r string){

    resp, err := http.NewRequest("GET", PAGE, nil)
    if err != nil {
        log.Fatal(err)
    }
    resp.Header.Set("Authorization", AUTH)

    fmt.Println("HTTP Response Status:", resp.StatusCode, http.StatusText(resp.StatusCode))

    r := resp.StatusCode + http.StatusText(resp.StatusCode)
}

Basically I want to get this:

r = "200 OK"
or
r= "400 Bad request"

The previous code it´s complaining from resp.StatusCode and http.StatusText(resp.StatusCode)

Answer 1

There are two problems. The first is that the application uses the request as the response. Execute the request to get the response.

The second problem is that resp.StatusCode + http.StatusText(resp.StatusCode) does not compile because operand types are mismatched. The value resp.StatusCode is an int. The value of http.StatusText(resp.StatusCode) is a string. Go does not have the implicit conversion of numbers to strings that would make this work the way you expect.

Use r := resp.Status if you want the status string as sent from the server.

Use r := fmt.Sprintf("%d %s", resp.StatusCode, http.StatusText(resp.StatusCode)) to construct a status string from the server's status code and the Go's status strings.

Here's the code:

func StatusCode(PAGE string, AUTH string) (r string) {
    // Setup the request.
    req, err := http.NewRequest("GET", PAGE, nil)
    if err != nil {
        log.Fatal(err)
    }
    req.Header.Set("Authorization", AUTH)

    // Execute the request.
    resp, err := http.DefaultClient.Do(req)
    if err != nil {
        return err.Error()
    }
    
    // Close response body as required.
    defer resp.Body.Close()

    fmt.Println("HTTP Response Status:", resp.StatusCode, http.StatusText(resp.StatusCode))

    return resp.Status
    // or fmt.Sprintf("%d %s", resp.StatusCode, http.StatusText(resp.StatusCode))
}