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Running a Reth Node

This is an implementation of the Reth node setup that supports Flashblocks mode based on configuration.

Setup

  • See hardware requirements mentioned in the master README
  • For Flashblocks mode: Access to a Flashblocks websocket endpoint (for RETH_FB_WEBSOCKET_URL)
    • We provide public websocket endpoints for mainnet and devnet, included in .env.mainnet and .env.sepolia

Node Type Selection

The node determines its mode based on the presence of the RETH_FB_WEBSOCKET_URL environment variable:

  • Vanilla Mode (default): When no RETH_FB_WEBSOCKET_URL is provided.
  • Flashblocks Mode: When RETH_FB_WEBSOCKET_URL is provided.

Running the Node

The node follows the standard docker-compose workflow in the master README.

# To run Reth node with Flashblocks support, set RETH_FB_WEBSOCKET_URL in your .env file
CLIENT=reth docker-compose up

Testing Flashblocks RPC Methods

When running in Flashblocks mode (with RETH_FB_WEBSOCKET_URL configured), you can query a pending block using the Flashblocks RPC:

curl -X POST \
  --data '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["pending", false],"id":1}' \
  http://localhost:8545

Additional RPC Methods

For a complete list of supported RPC methods, refer to: