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---
edit_link: ''
title: Qt AFB Websocket client
origin_url: >-
https://git.automotivelinux.org/src/libafb-helpers/plain/docs/qafbwebsocketclient.md?h=master
---
<!-- WARNING: This file is generated by fetch_docs.js using /home/boron/Documents/AGL/docs-webtemplate/site/_data/tocs/devguides/master/afb-helpers-function-references-afb-helpers-book.yml -->
# A WebSocket client to an Application Framework Binder
## QAfbWebsocketClient(QObject* parent = nullptr)
Default constructor.
* `parent`: Parent object.
## QAbstractSocket::SocketError error()
Get and return the last error code.
## QString errorString()
Get and return the last error as a string.
## bool isValid()
Check if connection is ready or not.
Returns `true` if the connected is ready to read and write, `false` otherwise.
## void call(const QString& api, const QString& verb, const QJsonValue& arg = QJsonValue(), closure_t closure = nullptr)
Call an api's verb with an argument.
* `api`: Api to call.
* `verb`: Verb to call.
* `arg`: Argument to pass.
* `closure`: callback function to call at the verb reply
## void QAfbWebsocketClient::sendTextMessage(QString msg)
Send a text message over the websocket.
This is use for test only, you should not use this method because it sent text
**as-is**, so you have to follow the binder's protocol by your self.
* `msg`: Message to send.
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