ETH RPC Cache Layer

A simple http server to cache specific eth rpc requests in memory. Useful for massive repeatedly requests to ETH rpc endpoints. Multiple endpoints/chains can be configured to be cached.

Usage (with docker)

1. Edit docker-compose.yml

2. docker-compose up

Usage

redis-url is optional

cargo run --release -- \
  --port=8124 \
  --bind=0.0.0.0 \
  --endpoint=eth=https://rpc.ankr.com/eth \
  --endpoint=bsc=https://rpc.ankr.com/bsc \
  --redis-url=redis://localhost:6379 \
  --cache=<lru|memory|redis> [default=lru] \
  --max-lru-items=<number> [default=100000]

Following redirection will be made:

• http://localhost:8124/eth -> https://rpc.ankr.com/eth
• http://localhost:8124/bsc -> https://rpc.ankr.com/bsc

Supported methods

Mainly supported requests with determined block number. Other methods will be directly send to the configured ETH rpc endpoint.

• eth_call

• eth_chainId

• eth_estimateGas

• eth_getBalance

• eth_getBlockByHash

• eth_getBlockByNumber

• eth_getBlockReceipts

• eth_getCode

• eth_getLogs

• eth_maxPriorityFeePerGas

• eth_getStorageAt

• eth_getTransactionByBlockHashAndIndex

• eth_getTransactionByBlockNumberAndIndex

• eth_getTransactionByHash

• eth_getTransactionCount

• eth_getTransactionReceipt

• debug_traceBlockByHash

• debug_traceBlockByNumber

• debug_traceCall

• debug_traceTransaction