feat: FlashblocksPubSubManager
#369
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karankurbur
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Jul 11, 2025
Dzejkop
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Jul 11, 2025
Dzejkop
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Jul 11, 2025
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Previously, the flashblocks implementation featured a
FlashblocksReceiverServiceresponsible for consuming the builder WebSocket stream, and aFlashblocksServicethat combined payload assembly, Engine API handling, and outbound broadcasting to builders.This PR introduces a
FlashblocksPubSubManagerto encapsulate subscription and publishing logic, decoupling it from Engine API responsibilities. A dedicatedFlashblocksProvidernow manages the in-memoryFlashblockBuilderstate and handles Engine API payload serving. This design creates a clear separation of concerns, improves maintainability, and makes the system easier to reason about.Tests and metrics are still being added but opening this draft for an initial round of review.