Go to file

Bryan Stitt e8cc27bd37 more structs		2022-04-29 19:22:59 +00:00
data/wrk	it works, but locking needs improvements	2022-04-27 22:53:13 +00:00
examples	block watching vs subscribing	2022-04-25 20:26:54 +00:00
src	more structs	2022-04-29 19:22:59 +00:00
.dockerignore	large improvements	2022-04-24 07:26:00 +00:00
.gitignore	fixes	2022-04-28 19:30:22 +00:00
Cargo.lock	faster	2022-04-29 01:57:16 +00:00
Cargo.toml	RawValues	2022-04-29 16:03:11 +00:00
Dockerfile	add dockerfile with caches	2022-04-23 18:00:03 +00:00
LICENSE	add LICENSE	2022-03-04 19:56:05 -08:00
README.md	fixes	2022-04-28 19:30:22 +00:00
TODO.md	sort on sync status	2022-04-27 20:02:51 +00:00

README.md

web3-proxy

quick and dirty proxy for ethereum rpcs (or similar)

Signed transactions are sent to the configured private RPC (eden, flashbots, etc.). All other requests are sent to the configured primary RPC (alchemy, moralis, rivet, your own node, or one of many other providers).

cargo run -- --help

    Finished dev [unoptimized + debuginfo] target(s) in 0.04s
     Running `target/debug/eth-proxy --help`
Usage: eth-proxy --eth-primary-rpc <eth-primary-rpc> --eth-private-rpc <eth-private-rpc> [--listen-port <listen-port>]

Proxy Web3 Requests

Options:
  --eth-primary-rpc the primary Ethereum RPC server
  --eth-private-rpc the private Ethereum RPC server
  --listen-port     the port to listen on
  --help            display usage information

cargo run -r -- --eth-primary-rpc "https://your.favorite.provider"

curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":67}' 127.0.0.1:8845/eth

Flame Graphs

$ cat /proc/sys/kernel/kptr_restrict
1
$ echo 0 |sudo tee /proc/sys/kernel/kptr_restrict
0
$ CARGO_PROFILE_RELEASE_DEBUG=true cargo flamegraph

Load Testing

Test the proxy:

wrk -s ./data/wrk/getBlockNumber.lua -t12 -c400 -d30s --latency http://127.0.0.1:8445
wrk -s ./data/wrk/getLatestBlockByNumber.lua -t12 -c400 -d30s --latency http://127.0.0.1:8445

Test geth:

wrk -s ./data/wrk/getBlockNumber.lua -t12 -c400 -d30s --latency http://127.0.0.1:8545
wrk -s ./data/wrk/getLatestBlockByNumber.lua -t12 -c400 -d30s --latency http://127.0.0.1:8545

Test erigon:

wrk -s ./data/wrk/getBlockNumber.lua -t12 -c400 -d30s --latency http://127.0.0.1:8945
wrk -s ./data/wrk/getLatestBlockByNumber.lua -t12 -c400 -d30s --latency http://127.0.0.1:8945

Todo

simple proxy
better locking. when lots of requests come in, we seem to be in the way of block updates
proper logging
load balance between multiple RPC servers
support more than just ETH
option to disable private rpc and send everything to primary
health check nodes by block height
measure latency to nodes
Dockerfile
testing getLatestBlockByNumber is not great because the latest block changes and so one run is likely to be different than another
if a request gets a socket timeout, try on another server
- maybe always try at least two servers in parallel? and then return the first? or only if the first one doesn't respond very quickly?