Fix panic: interface conversion: interface {} is nil, not map[string]…

anticaptcha.go

@@ -3,10 +3,12 @@ package anticaptcha
 import (
 	"bytes"
 	"encoding/json"
+	"github.com/pkg/errors"
 	"log"
 	"net/http"
 	"net/url"
 	"time"
+	"reflect"
 )
 
 var (
@@ -47,6 +49,9 @@ func (c *Client) createTaskRecaptcha(websiteURL string, recaptchaKey string) (fl
 	responseBody := make(map[string]interface{})
 	json.NewDecoder(resp.Body).Decode(&responseBody)
 	// TODO treat api errors and handle them properly
+	if reflect.ValueOf(responseBody["taskId"]).IsNil() {
+		return "", errors.Errorf("Failed to get a response")
+	}
 	return responseBody["taskId"].(float64), nil
 }
 
@@ -104,6 +109,10 @@ func (c *Client) SendRecaptcha(websiteURL string, recaptchaKey string) (string,
 			break
 		}
 	}
+
+	if response["solution"] == nil {
+		return "", errors.Errorf("Failed to get a response")
+	}
 	return response["solution"].(map[string]interface{})["gRecaptchaResponse"].(string), nil
 }
 
@@ -134,6 +143,9 @@ func (c *Client) createTaskImage(imgString string) (float64, error) {
 	// Decode response
 	responseBody := make(map[string]interface{})
 	json.NewDecoder(resp.Body).Decode(&responseBody)
+        if reflect.ValueOf(responseBody["taskId"]).IsNil() {
+		return "", errors.Errorf("Failed to get a response")
+	}
 	// TODO treat api errors and handle them properly
 	return responseBody["taskId"].(float64), nil
 }