Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/miguelmota/consensys-zkevm-messenger-l1-to-l2-example
Send a message from L1 Goerli to L2 ConsenSys zkEVM testnet.
https://github.com/miguelmota/consensys-zkevm-messenger-l1-to-l2-example
bridge consensys-zkevm cross-chain ethereum example hardhat messenger multi-chain solidity tutorial zk zkevm
Last synced: 7 days ago
JSON representation
Send a message from L1 Goerli to L2 ConsenSys zkEVM testnet.
- Host: GitHub
- URL: https://github.com/miguelmota/consensys-zkevm-messenger-l1-to-l2-example
- Owner: miguelmota
- License: mit
- Created: 2023-02-01T17:38:01.000Z (almost 2 years ago)
- Default Branch: master
- Last Pushed: 2023-03-08T03:41:30.000Z (almost 2 years ago)
- Last Synced: 2024-10-29T03:41:52.359Z (about 2 months ago)
- Topics: bridge, consensys-zkevm, cross-chain, ethereum, example, hardhat, messenger, multi-chain, solidity, tutorial, zk, zkevm
- Language: JavaScript
- Homepage: https://github.com/miguelmota/consensys-zkevm-messenger-l1-to-l2-example
- Size: 165 KB
- Stars: 2
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# ConsenSys zkEVM Messenger L1->L2 Example
> Send a message from L1 Goerli to L2 [ConsenSys zkEVM](https://docs.zkevm.consensys.net/) testnet.
## Example
There's two contracts; `L2Contract.sol` and `L1Contract.sol`
The L1 contract has a method `sendMessageToL2` that sends a message from L1 to L2 contract to set a greeting message on L2 contract.
It sends the encoded calldata to execute `setGreeting` on L2 which can only be called if the message was sent by the L1 contract.
### Files
- [`L2Contract.sol`](./contracts/L2Contract.sol)
- [`L1Contract.sol`](./contracts/L1Contract.sol)
- [`deployL2.js`](./script/deployL2.js)
- [`deployL1.js`](./scripts/deployL1.js)
- [`getRelayFee.js`](./scripts/getRelayFee.js)
- [`sendL1ToL2Message.js`](./scripts/sendL1ToL2Message.js)
- [`getGreetingOnL2.js`](./scripts/getGreetingOnL2.js)
## Install
```sh
git clone https://github.com/miguelmota/consensys-zkevm-messenger-l1-to-l2-example.git
cd consensys-zkevm-messenger-l1-to-l2-example
npm install
```
### Set Signer
Create `.env`
```sh
PRIVATE_KEY=123...
```
Make sure private key has funds on both Goerli and ConsenSys zkEVM testnet.
### Compile Contracts
```sh
npx hardhat compile
```
### Deploy L1 Contract
Command
```sh
npx hardhat run --network goerli scripts/deployL1.js
```
Output
```sh
L1Contract deployed to: 0x909c35f179c7cD151781f151A4d2a75528A8d2Fa
```
### Deploy L2 Contract
Command
```sh
L1_CONTRACT=0x909c35f179c7cD151781f151A4d2a75528A8d2Fa \
npx hardhat run --network consensyszk scripts/deployL2.js
```
Output
```sh
L2Contract deployed to: 0x0ef7281E3f746df91A350859271A8220F4B16519
```
### Get Relay Fee
Command
```sh
npx hardhat run --network goerli scripts/getRelayFee.js
```
Output
```sh
fee: 0.01
```
### Send L1->L2 Message
Command (replace env vars with your values)
```sh
GREETING="hello world" \
L2_CONTRACT=0x0ef7281E3f746df91A350859271A8220F4B16519 \
L1_CONTRACT=0x909c35f179c7cD151781f151A4d2a75528A8d2Fa \
npx hardhat run --network goerli scripts/sendL1ToL2Message.js
```
Output
```sh
sent tx hash 0x17d307327fea6e42837fb4e2ff0c3f6d2f6d8e95f659ac0cabd5a973c8d9a4f1
https://goerli.etherscan.io/tx/0x17d307327fea6e42837fb4e2ff0c3f6d2f6d8e95f659ac0cabd5a973c8d9a4f1
```
### Get Greeting on L2
Command
```sh
L2_CONTRACT=0x0ef7281E3f746df91A350859271A8220F4B16519 \
npx hardhat run --network consensyszk scripts/getGreetingOnL2.js
```
Output
```sh
greeting: hello world
```
### Send L2->L1 Message
See [https://github.com/miguelmota/consensys-zkevm-messenger-l1-to-l2-example](https://github.com/miguelmota/consensys-zkevm-messenger-l1-to-l2-example)
## License
[MIT](./LICENSE) @ [Miguel Mota](https://github.com/miguelmota)