Resolving discussions

src/api/encryption_keys_put.c

@@ -35,7 +35,7 @@ int callback_encryption_keys_put(const struct _u_request * request,
     const char * keyslot_string = u_map_get(request->map_url, "slot");
     if (keyslot_string == NULL)
     {
-        return send_simple_response(response, 500, "error",
+        return send_simple_response(response, 400, "error",
             "missing url parameter `slot`");
     }
     int keyslot;
@@ -43,7 +43,7 @@ int callback_encryption_keys_put(const struct _u_request * request,
     if (r != 0)
     {
         printf("invalid url parameter `slot`: %s\n", keyslot_string);
-        return send_simple_response(response, 500, "error",
+        return send_simple_response(response, 400, "error",
             "invalid url parameter `slot`");
     }