docs(flashblocks): add real-time transaction monitor cookbook#1301
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erhnysr wants to merge 1 commit intobase:masterfrom
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docs(flashblocks): add real-time transaction monitor cookbook#1301erhnysr wants to merge 1 commit intobase:masterfrom
erhnysr wants to merge 1 commit intobase:masterfrom
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Added a new cookbook page that walks through building a production-ready transaction monitor using Flashblocks WebSocket streaming. Covers: - Project setup (TypeScript, ws package) - Brotli decompression of WebSocket messages - Typed interfaces for Flashblock data structures - Address watcher with preconfirmation status (success/reverted/preconfirmed) - Auto-reconnect with exponential backoff - Fallback to standard RPC via viem when Flashblocks is unavailable This page complements app-integration.mdx (RPC usage) by covering the WebSocket path end-to-end with a complete runnable example.
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🟡 Heimdall Review Status
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Summary
The existing Flashblocks documentation covers RPC integration (viem, wagmi, ethers.js) but has no end-to-end example for the WebSocket streaming path. This PR adds a new cookbook page that walks through building a complete, production-ready transaction monitor.
New file
docs/base-chain/flashblocks/transaction-monitor.mdxWhat it covers
wspackage,tsconfig.jsonFlashblock,FlashblockTx,FlashblockReceiptsuccess/reverted/preconfirmed)Relationship to existing docs
This page complements
app-integration.mdx(RPC usage) by covering the WebSocket path end-to-end with a complete runnable example. The two pages cross-link each other.Testing
The TypeScript compiles cleanly. The WebSocket connection, Brotli decompression, and address-matching logic have been verified against the mainnet Flashblocks endpoint.