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Websocket API

Explore how WebSocket APIs provide efficient, bidirectional communication between clients and servers, enabling real-time applications like chat apps. Understand the advantages over REST APIs, including reduced latency and cost, and learn how to implement WebSocket APIs using AWS API Gateway.

Bidirectional communication

HTTP-based communication requires a client to trigger the flow. Only the client can initiate an HTTP request to send or receive data from the server. The server can’t trace the client to send a message back to the client. It has to wait for the next HTTP request from the client. That’s because the server doesn’t have a reverse connection to the client.

This works well in many scenarios, which is why the REST API is so popular. ...