rindexer_factory_indexing

rindexer_factory_indexing

Demonstrates factory pattern indexing — dynamically discovering and indexing contracts created by a factory contract (Uniswap V3).

What it demonstrates

• Watches UniswapV3Factory for PoolCreated events
• Automatically derives pool addresses and starts indexing their Swap events
• Extracts token0/token1 addresses from the same factory event and tracks their Transfer events
• Multi-network support (Ethereum + Base)

Contracts & Events

Contract	Discovery	Events
UniswapV3Factory	Static address	OwnerChanged
UniswapV3Pool	Derived from PoolCreated.pool	Swap
UniswapV3PoolToken	Derived from PoolCreated.token0 and PoolCreated.token1	Transfer

Storage

PostgreSQL + CSV

Getting started

1. Copy .env.example to .env and configure your DATABASE_URL
2. Run docker-compose up -d to start the Postgress instance in the docker-compose.yml file
3. Run cargo run (defaults to starting both the indexer and GraphQL API), optionally you can add the flags: --indexer, to only index the data or --graphql, --port=<PORT> to start the GraphQL API.
4. You can access the GraphQL playground with your created data at http://localhost:3001/playground. Run the query in the UI:

   query SwapsQuery {
     allSwaps(first: 10) {
       nodes {
         nodeId
         rindexerId
         contractAddress
         sender
         recipient
         amount0
         amount1
         sqrtPriceX96
         liquidity
         tick
         txHash
         blockNumber
         blockTimestamp
         blockHash
         network
         txIndex
         logIndex
       }
     }
   }