This repository implements a generic CCIP-Read gateway for fetching state proofs of data on other EVM chains. The intended use is for contracts on L1 to be able to fetch and verify data from contracts on L2 in a read context.
License: MIT License
building op-verifier...
An unexpected error occurred:
TypeError: Cannot read properties of undefined (reading 'JsonRpcSigner')
at Object.<anonymous> (/Users/chomtana/Desktop/projects/optidomains/evmgateway/node_modules/zksync-web3/build/src/signer.js:78:74)
at Module._compile (node:internal/modules/cjs/loader:1376:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1435:10)
at Object.require.extensions.<computed> [as .js] (/Users/chomtana/Desktop/projects/optidomains/evmgateway/node_modules/ts-node/src/index.ts:1608:43)
at Module.load (node:internal/modules/cjs/loader:1207:32)
at Function.Module._load (node:internal/modules/cjs/loader:1023:12)
at Module.require (node:internal/modules/cjs/loader:1235:19)
at require (node:internal/modules/helpers:176:18)
at Object.<anonymous> (/Users/chomtana/Desktop/projects/optidomains/evmgateway/node_modules/zksync-web3/build/src/utils.js:20:18)
at Module._compile (node:internal/modules/cjs/loader:1376:14)
One possible implementation is
OffchainData errorReproduction code : #14
After fighting a bit to get this repo to work, we figured out that with recent bun versions it simply doesn't build (and also doesn't install dependencies because bun run build is a prepare pre-script).
➜ evmgateway git:(main) ✗ bun install
bun install v1.0.17 (5e60861c)
⚙️ @ensdomains/op-gateway [1/5] $ echo 'building l1-gateway...' && bun run clean && bun run build:cjs && bun run build:esm && bun run build:types
building l1-gateway...
$ rm -fr _cjs _esm _types
$ tsc --project tsconfig.build.json --module commonjs --outDir ./_cjs --removeComments --verbatimModuleSyntax false && echo > ./_cjs/package.json '{"type":"commonjs"}'
src/index.ts(1,28): error TS2307: Cannot find module '@ensdomains/evm-gateway' or its corresponding type declarations.
src/L1ProofService.ts(8,52): error TS2307: Cannot find module '@ensdomains/evm-gateway' or its corresponding type declarations.
src/server.ts(3,28): error TS2307: Cannot find module '@ensdomains/evm-gateway' or its corresponding type declarations.
src/worker.ts(2,29): error TS2307: Cannot find module '@ensdomains/evm-gateway' or its corresponding type declarations.
src/worker.ts(12,38): error TS2307: Cannot find module '@ensdomains/evm-gateway' or its corresponding type declarations.
error: prepare script from "@ensdomains/l1-gateway" exited with code 2 (SIGINT)
We also identified that this is related to the parallelization of lifecycle scripts since v1.0.17. There's an easy fix to it which I'll open a PR for shortly. 🫡
Hello there, intrigued by this project/pattern!
I was wondering if there is any general purpose implementation deployed on L1 and Optimism with companion gateway that would allow to read from any existing and new Optimism contract from L1 without having to deploy EVMGateways logic or run a gateway. If this exists can you share a short example on how to query from an L1?
Will any authority (eg ENS or Optimism) run gateways for the mass?
I'm just having a play with the gateway code.
The l1-verifier repo has a test script testL1Verifier.ts.
Running the tests with npx hardhat test results in failures across the board.
Looking at the code it seems obvious why - the tests are expecting primitive type values whereas the fetch method of EVMFetcher reverts with the 3668 OffchainLookup error.
These tests seem to be testing the wrong thing..?
These repos are not well documented at this point. Could clarity please be provided.
It will be great if we can work together to add a gateway and verifier for Taiko's L2 mainnet.
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