[Application Development] How to enable "eth_subscribe" interface?

[maodaishan]

Did you check the documentation?

• Yes

Did you check for duplicate questions?

• Yes

Issue Description

I tried "eth_subscribe" interface in my private deployed OP Stack rollup, it replyed "notifications not supported", Is there anyway I can enable this interface? thanks.

Additional Information

Here's the interactions:
Request:
curl -X POST -H "Content-Type: application/json" --data '{ "id": 1, "jsonrpc": "2.0", "method": "eth_subscribe", "params": ["newHeads"] }' http://xx.xx.xx.xx:8545

Response:
{"jsonrpc":"2.0","id":1,"error":{"code":-32601,"message":"notifications not supported"}}

Feedback

No response

[mslipper]

You can't use eth_subscribe on an http endpoint - you have to use web sockets. Add --ws --ws.api=eth to fix.

[maodaishan]

Thanks @mslipper , I could use it now :)