bgpo: convert BTO from subscription to polling#19095
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sebastianst merged 1 commit intodevelopfrom Feb 5, 2026
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The Blob Tip Oracle (BTO) previously used ethclient.SubscribeNewHead() for header notifications, which only works over WebSocket connections. This change converts it to polling for new headers instead, allowing it to work with HTTP connections. The polling uses the existing PollRate configuration (2.5s default) to check for new headers at regular intervals. Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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The Blob Tip Oracle (BTO) previously used ethclient.SubscribeNewHead() for header notifications, which only works over WebSocket connections. This change converts it to polling for new headers instead, allowing it to work with HTTP connections. The polling uses the existing PollRate configuration (2.5s default) to check for new headers at regular intervals. Co-authored-by: Claude Haiku 4.5 <noreply@anthropic.com>
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For the record, you can use optimism/op-service/client/polling.go Line 56 in 101448e |
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Summary
Convert the Blob Tip Oracle (BTO) from using ethclient.SubscribeNewHead() (WebSocket-only) to polling for new headers. This enables BTO to work with HTTP connections and removes the WebSocket requirement.
Changes remove the SubscribeNewHead method from BTOBackend, convert the subscription-based processing loop to a polling loop using the existing PollRate configuration (2.5s default), and update tests accordingly.
Test Plan
go test ./op-service/bgpo/...)go test ./op-service/txmgr/...)🤖 Generated with Claude Code