--- title: invokeWithLayer description: Invoke the specified query using the specified API [layer](https://core.telegram.org/api/invoking#layers) image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png --- # Method: invokeWithLayer [Back to methods index](index.md) Invoke the specified query using the specified API [layer](https://core.telegram.org/api/invoking#layers) ### Parameters: | Name | Type | Description | Required | |----------|---------------|-------------|----------| |layer|[int](../types/int.md) | The layer to use | Yes| |query|[!X](../types/!X.md) | The query | Yes| ### Return type: [X](../types/X.md) ### Can bots use this method: **YES** ### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)): ```php if (!file_exists('madeline.php')) { copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php'); } include 'madeline.php'; $MadelineProto = new \danog\MadelineProto\API('session.madeline'); $MadelineProto->start(); $X = $MadelineProto->invokeWithLayer(['layer' => int, 'query' => !X, ]); ``` Or, if you're into Lua: ```lua X = invokeWithLayer({layer=int, query=!X, }) ``` ### Errors | Code | Type | Description | |------|----------|---------------| |400|AUTH_BYTES_INVALID|The provided authorization is invalid| |400|CDN_METHOD_INVALID|You can't call this method in a CDN DC| |400|CONNECTION_API_ID_INVALID|The provided API id is invalid| |400|CONNECTION_DEVICE_MODEL_EMPTY|Device model empty| |400|CONNECTION_LANG_PACK_INVALID|Language pack invalid| |400|CONNECTION_NOT_INITED|Connection not initialized| |400|CONNECTION_SYSTEM_EMPTY|Connection system empty| |400|INPUT_LAYER_INVALID|The provided layer is invalid| |400|INVITE_HASH_EXPIRED|The invite link has expired| |406|AUTH_KEY_DUPLICATED|An auth key with the same ID was already generated| |403|CHAT_WRITE_FORBIDDEN|You can't write in this chat| |-503|Timeout|Timeout while fetching data|