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Scheduled Maintenance
Indexer WebSocket: compression required Oct 28, 2026 14:20-15:20 UTC
On Wednesday, October 28, 2026, we will begin requiring WebSocket compression (permessage-deflate) on indexer.dydx.trade/v4/ws. Clients connecting without compression may have their connection refused with an HTTP 426 response. Once compression is enabled, clients can reconnect immediately.
We recommend enabling compression now, ahead of the change.
How to enable compression:
- Go (gorilla/websocket): websocket.Dialer{EnableCompression: true}
- C++ (Boost.Beast): websocket::permessage_deflate opt; opt.client_enable = true; ws.set_option(opt);
- Python (aiohttp): session.ws_connect(url, compress=15)
- Python (websockets) and Node.js (ws): enabled by default
The 426 response body includes these same instructions.
Posted on Oct 26, 2026 - 14:21 UTC
We recommend enabling compression now, ahead of the change.
How to enable compression:
- Go (gorilla/websocket): websocket.Dialer{EnableCompression: true}
- C++ (Boost.Beast): websocket::permessage_deflate opt; opt.client_enable = true; ws.set_option(opt);
- Python (aiohttp): session.ws_connect(url, compress=15)
- Python (websockets) and Node.js (ws): enabled by default
The 426 response body includes these same instructions.
Posted on Oct 26, 2026 - 14:21 UTC