Fix SSE event names for block update stream

.claude-flow/metrics/system-metrics.json

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CLAUDE.md

@@ -0,0 +1,144 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+Chainweb-node is the implementation of Kadena's Chainweb consensus protocol - a braided, parallelized Proof of Work blockchain architecture. The project is written in Haskell and uses Cabal as the build system.
+
+## Build Commands
+
+### Building the project
+```bash
+# Update cabal package index (do this occasionally)
+cabal update
+
+# Build all components
+cabal build all
+
+# Build specific components
+cabal build chainweb         # Main library
+cabal build chainweb-node    # Node executable  
+cabal build cwtools          # Command-line tools
+```
+
+### Running tests
+```bash
+# Run all tests
+cabal test chainweb-tests
+
+# Run tests with specific patterns
+cabal run chainweb-tests -- --hide-successes -p '!/chainweb216Test/'
+
+# Run a single test module
+cabal test chainweb-tests --test-options="-p 'Chainweb.Test.BlockHeaderDB'"
+```
+
+### Common development tasks
+```bash
+# Run the chainweb node
+cabal run chainweb-node
+
+# Get help and configuration options
+cabal run chainweb-node -- --help
+cabal run chainweb-node -- --print-config > config.yaml
+
+# Build with optimizations
+cabal build -O2 chainweb-node
+
+# Clean build artifacts
+cabal clean
+```
+
+## Architecture Overview
+
+### Core Module Structure
+
+The codebase is organized into several key areas:
+
+- **src/Chainweb/**: Core blockchain implementation
+  - `BlockHeader/`: Block header management and genesis blocks
+  - `BlockHeaderDB/`: Block header database operations
+  - `CutDB/`: Cut (blockchain state) management
+  - `Mempool/`: Transaction mempool implementation
+  - `Miner/`: Mining-related functionality
+  - `Pact/`: Smart contract (Pact) integration
+  - `SPV/`: Simple Payment Verification proofs
+  - `Payload/`: Block payload management
+  - `RestAPI/`: REST API endpoints
+  - `VerifierPlugin/`: Pluggable verification systems (e.g., Hyperlane)
+
+- **src/P2P/**: Peer-to-peer networking layer
+  - Bootstrap nodes configuration
+  - Peer discovery and communication
+
+- **node/**: Chainweb-node executable
+  - Main entry point is `node/src/ChainwebNode.hs`
+
+- **cwtools/**: Command-line utilities for debugging and maintenance
+
+- **test/**: Test suites
+  - `unit/`: Unit tests
+  - `pact/`: Pact smart contract tests
+  - `multinode/`: Multi-node integration tests
+
+### Key Architectural Concepts
+
+1. **Chainweb Protocol**: Multiple parallel chains (20 chains in mainnet) that reference each other's block headers, creating a braided structure
+
+2. **Cut**: The current state across all chains - essentially a snapshot of the latest block header on each chain
+
+3. **Pact Integration**: Each chain runs its own Pact interpreter for smart contract execution
+
+4. **P2P Network**: Nodes communicate via a custom P2P protocol for block propagation and synchronization
+
+5. **Mining API**: Provides endpoints for external miners to get work and submit solutions
+
+## Working with the Codebase
+
+### Language Extensions
+The project uses many GHC language extensions. Common ones include:
+- OverloadedStrings
+- LambdaCase  
+- TypeApplications
+- ScopedTypeVariables
+- FlexibleContexts
+
+### External Dependencies
+Key external dependencies managed via Cabal:
+- pact (smart contract language)
+- rocksdb-haskell (database backend)
+- servant (REST API framework)
+- yet-another-logger (logging)
+
+Custom forks are specified in `cabal.project` as source-repository-packages.
+
+### Database Backends
+- RocksDB for block headers and payloads
+- SQLite for Pact state
+
+### Testing Approach
+- Unit tests use HUnit and QuickCheck
+- Integration tests use custom multi-node test framework
+- Test data files in `test/pact/` and `test/golden/`
+- CI runs tests on multiple GHC versions (9.6, 9.8, 9.10)
+
+## Network Configuration
+
+### Networks
+- **mainnet01**: Production network
+- **testnet04**: Test network  
+- **development**: Local development network
+
+### Bootstrap Nodes
+Hardcoded in `src/P2P/BootstrapNodes.hs`
+- Mainnet: us-[e|w][1-3].chainweb.com, jp[1-3].chainweb.com, fr[1-3].chainweb.com
+- Testnet: us[1-2].testnet.chainweb.com, eu[1-2].testnet.chainweb.com, ap[1-2].testnet.chainweb.com
+
+## Important Files
+
+- `cabal.project`: Cabal configuration with dependency overrides
+- `chainweb.cabal`: Main library package definition
+- `node/chainweb-node.cabal`: Node executable package
+- `.github/workflows/`: CI/CD workflows
+- `src/Chainweb/Version.hs`: Network version definitions

src/Chainweb/BlockHeaderDB/RestAPI/Server.hs

@@ -428,5 +428,7 @@ blockStreamHandler db withPayloads = Tagged $ \req resp -> do
             }
 
     f :: HeaderUpdate -> ServerEvent
-    f hu = ServerEvent (Just $ fromByteString "BlockHeader") Nothing
+    f hu = ServerEvent (Just $ fromByteString eventType) Nothing
         [ fromLazyByteString . encode $ toJSON hu ]
+      where
+        eventType = if withPayloads then "Block" else "BlockHeader"