(Go) WhatsApp - Login

Log in to get your authentication token (which is to be used in the "Authorization: Bearer your-auth-token" header in other REST API calls).

Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://developers.facebook.com/docs/whatsapp/api/users/login

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

    success := false

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    http := Http_Ref.html">chilkat.NewHttp()

    // Implements the following CURL command:

    // curl -X POST https://your-webapp-hostname:your-webapp-port/v1/users/login \
    //   -H 'Content-Type: application/json' \
    //   --user 'username:password' \
    //   -d '{}'

    http.SetLogin("username")
    http.SetPassword("password")

    // The following JSON is sent in the request body.

    // {}

    json := JsonObject_Ref.html">chilkat.NewJsonObject()

    resp := HttpResponse_Ref.html">chilkat.NewHttpResponse()
    success = http.HttpJson("POST","https://your-webapp-hostname:your-webapp-port/v1/users/login",json,"application/json",resp)
    if success == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        json.DisposeJsonObject()
        resp.DisposeHttpResponse()
        return
    }

    sbResponseBody := StringBuilder_Ref.html">chilkat.NewStringBuilder()
    resp.GetBodySb(sbResponseBody)
    jResp := JsonObject_Ref.html">chilkat.NewJsonObject()
    jResp.LoadSb(sbResponseBody)
    jResp.SetEmitCompact(false)

    fmt.Println("Response Body:")
    fmt.Println(*jResp.Emit())

    respStatusCode := resp.StatusCode()
    fmt.Println("Response Status Code = ", respStatusCode)
    if respStatusCode >= 400 {
        fmt.Println("Response Header:")
        fmt.Println(resp.Header())
        fmt.Println("Failed.")
        http.DisposeHttp()
        json.DisposeJsonObject()
        resp.DisposeHttpResponse()
        sbResponseBody.DisposeStringBuilder()
        jResp.DisposeJsonObject()
        return
    }

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "users": [
    //     {
    //       "token": "eyJhbGciOHlXVCJ9.eyJ1c2VyIjoNTIzMDE2Nn0.mEoF0COaO00Z1cANo",
    //       "expires_after": "2018-03-01 15:29:26+00:00"
    //     }
    //   ]
    // }

    // Sample code for parsing the JSON response...

    var token *string = new(string)
    var expires_after *string = new(string)

    i := 0
    count_i := jResp.SizeOfArray("users")
    for i < count_i {
        jResp.SetI(i)
        token = jResp.StringOf("users[i].token")
        expires_after = jResp.StringOf("users[i].expires_after")
        i = i + 1
    }


    http.DisposeHttp()
    json.DisposeJsonObject()
    resp.DisposeHttpResponse()
    sbResponseBody.DisposeStringBuilder()
    jResp.DisposeJsonObject()