[GitHub] [pulsar] zymap edited a comment on issue #9441: Creating subscription on a Topic via REST API sets the cursor to earliest position

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

zymap edited a comment on issue #9441:
URL: https://github.com/apache/pulsar/issues/9441#issuecomment-772374199


   Hi @merajblueshift , I checkout the pulsar admin request, it sends a HTTP request like this:
   ```
   PUT /admin/v2/persistent/public/default/test/subscription/test HTTP/1.1
   Accept: application/json
   Content-Type: application/json
   content-length: 82
   host: localhost:8088
   user-agent: Pulsar-Java-v2.7.0
   
   {"ledgerId":9223372036854775807,"entryId":9223372036854775807,"partitionIndex":-1}
   ```
   
   As you see, it doesn't send a message position like `{"messageId": "latest"}`.
   
   In pulsar admin, we convert the string `latest` to the `MessageId.latest` https://github.com/apache/pulsar/blob/fa41d02bebfd841767846240f3ae574047f118f0/pulsar-client-api/src/main/java/org/apache/pulsar/client/api/MessageId.java#L86
   
   So actually, it passes a position ({"ledgerId":9223372036854775807,"entryId":9223372036854775807,"partitionIndex":-1}) to the broker with the REST API.
   
   I think we should handle the position string like `earliest` and `latest` in the broker like how we did in the pulsar-admin client.


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