[GitHub] [pulsar] BewareMyPower commented on issue #8175: Effectively-Once support for WebSockets

[GitBox <gi...@apache.org>]

BewareMyPower commented on issue #8175:
URL: https://github.com/apache/pulsar/issues/8175#issuecomment-736310196


   The WebSocket already supports effectively-once because the client side only needs to set producer name and timeout, i.e. `sendTimeoutMillis` and `producerName`. See http://pulsar.apache.org/docs/en/client-libraries-websocket/#producer-endpoint for details.
   
   The effectively-once means message deduplication from producer side, see http://pulsar.apache.org/docs/en/cookbooks-deduplication/#pulsar-clients
   
   And the equivalent Python code through WebSocket is:
   
   ```python
   import websocket
   
   url = 'ws://localhost:8080/ws/v2/producer/persistent/public/default/topic-1?producerName=producer-1&sendTimeoutMillis=0'
   ws = websocket.create_connection(url)
   ```
   
   It should be supported a long time ago but the client feature matrix in wiki was wrong.


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