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[!IMPORTANT]
This repository is a read-only mirror of packages/websocket in appwrite/appwrite. Development happens there — please open issues and pull requests against appwrite/appwrite.
Utopia WebSocket is a simple and lite abstraction layer around a WebSocket server. This library is aiming to be as simple and easy to learn and use. This library is maintained by the Appwrite team.
Although this library is part of the Utopia Framework project it is dependency free and can be used as standalone with any other PHP project or framework.
Getting started
Install using Composer:
Init in your application:
Slow clients
The Swoole adapter allows sends to wait for a full output buffer to drain, with a five-second timeout for each wait. This prevents pending sends from waiting indefinitely after a client disconnects, including the failure described in Swoole issue #6196.
Configure the timeout in the constructor:
When a push fails, including on timeout, the adapter resets the connection and discards queued output. Clients must reconnect and refresh application state to recover missed events. Brief stalls can recover if the buffer drains before the timeout.
The timeout applies to each Swoole wait, not the total lifetime of a send; a retry can start another wait. It does not cap pending bytes or change Swoole's output buffer size. Applications sending large bursts should also limit queued work or reduce update frequency.
System requirements
Utopia Framework requires PHP 8.0 or later. We recommend using the latest PHP version whenever possible.
Composer command for our command line client (download client)This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free.Standard composer command
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