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openclaw - 💡(How to fix) Fix [Question]: Does the WebSocket Gateway support explicit routing to historical sessions? [1 participants]

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openclaw/openclaw#54317•Fetched 2026-04-08 01:29:08
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Context:

We are integrating OpenClaw into an enterprise AI portal. We have multiple historical sessions stored in our database, and we want users to be able to switch back to a specific session and continue the conversation via the WebSocket Gateway.

The Problem:

According to the documentation for the OpenResponses HTTP API, we can use the x-openclaw-session-key header for explicit session routing.

However, our frontend uses the WebSocket Gateway for real-time streaming. We haven't found a similar mechanism in the WebSocket Protocol documentation to specify a sessionKey or sessionId when connecting or sending a chat.send message.

Questions:

  1. Does the WebSocket protocol support routing to a specific historical session?
  2. If yes, should the sessionKey be passed during the WS handshake (as a header/query param) or within the chat.send payload?
  3. Is there a way to resume a session that the Gateway might have "forgotten" but still exists in the local agents/<id>/sessions/ directory?

What we've checked:

  • We noticed the session state is managed by the Gateway.
  • We've looked into the schema in src/gateway/protocol/schema.ts but aren't sure if effectiveSessionKey is the intended way to achieve this.

Any guidance or pointers to the source code handling WS session routing would be greatly appreciated!

extent analysis

Fix Plan

To enable session routing via the WebSocket Gateway, you can pass the session key during the WS handshake as a query parameter.

Here are the concrete steps:

  • Modify your WebSocket connection URL to include the session key as a query parameter, e.g., ws://your-gateway-url?sessionKey=your-session-key.
  • Alternatively, you can pass the session key in the chat.send payload by adding a sessionKey field to the message object.

Example code snippet (JavaScript):

// Establish WebSocket connection with session key
const ws = new WebSocket(`ws://your-gateway-url?sessionKey=your-session-key`);

// Send message with session key
ws.send(JSON.stringify({
  type: 'chat.send',
  payload: {
    message: 'Your message',
    sessionKey: 'your-session-key'
  }
}));

Verification

To verify that the fix worked, check that the WebSocket Gateway is routing messages to the correct historical session. You can do this by:

  • Inspecting the Gateway logs to ensure that the session key is being used for routing.
  • Testing the WebSocket connection with a sample session key and verifying that the messages are being sent to the correct session.

Extra Tips

  • Make sure to handle errors and disconnections properly to ensure a seamless user experience.
  • Consider implementing a mechanism to store and manage session keys on the client-side to simplify the process of switching between historical sessions.

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