Handling WebSocket errors and exceptions
WebSocket connections are susceptible to various errors and exceptions that can occur during the lifecycle of a connection. Common issues include connection failures, message parsing errors, and unexpected disconnections. Properly handling errors and correctly communicating with the client is essential to maintaining a responsive and resilient WebSocket-based application. In this recipe, we’ll explore how to handle WebSocket errors and exceptions effectively in FastAPI applications.
Getting ready
The recipe will show how to manage WebSocket errors that can happen for a specific endpoint. We will showcase how to improve the /ws
endpoint defined in the Handling WebSocket connections and disconnections recipe.
How to do it…
The way the /ws
endpoint is coded in the previous recipe returns the same response code and message when the server closes the connection. Just like for HTTP responses, FastAPI allows you to personalize...