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https://github.com/chainstacklabs/evm-smart-contract-watcher-ethers
This simple project uses the ethers.js library to examine blocks using the eth_getBlockReceipts method and extract data about newly deployed smart contracts
https://github.com/chainstacklabs/evm-smart-contract-watcher-ethers
chainstack ethers smart-contracts web3
Last synced: about 2 months ago
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This simple project uses the ethers.js library to examine blocks using the eth_getBlockReceipts method and extract data about newly deployed smart contracts
- Host: GitHub
- URL: https://github.com/chainstacklabs/evm-smart-contract-watcher-ethers
- Owner: chainstacklabs
- License: mit
- Created: 2023-01-05T20:54:27.000Z (almost 2 years ago)
- Default Branch: main
- Last Pushed: 2024-04-09T14:18:12.000Z (9 months ago)
- Last Synced: 2024-04-09T18:06:22.180Z (9 months ago)
- Topics: chainstack, ethers, smart-contracts, web3
- Language: JavaScript
- Homepage: https://docs.chainstack.com/docs/uncovering-the-power-of-ethgetblockreceipts
- Size: 42 KB
- Stars: 2
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
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# Smart contract watcher Chainstack
This simple project uses the Ethers.js library to examine blocks using the `eth_getBlockReceipts` method and extract data about newly deployed smart contracts.
Read the full article on the Chainstack Developer Portal:
* [Uncovering the Power of eth_getBlockReceipts](https://docs.chainstack.com/docs/uncovering-the-power-of-ethgetblockreceipts)
## Project details
This program uses the `ethers.js` library to retrieve all of the transaction receipts in a block at once using the `eth_getBlockReceipts` method; it then looks for transactions that deployed a new smart contract by inspecting the `contractAddress` field of each transaction receipt.
> This project is compatible with EVM-based chains.
## Quickstart
### Clone this project
```sh
git clone https://github.com/soos3d/smart-contract-watcher-chainstack.git
```
### Install Dependencies
From the root directory of the project run:
```sh
npm ci
```
> Use `npm ci` to launch a `clean install` of the dependencies. This will install the same version as in the `package.json` file.
### Edit .env.sample
Edit the `.env.sample` file, paste the node endpoint you wish to test, and rename it to `.env`.
> Starting August 2023, Geth also support `eth_getBlockReceipts`.
```sh
ERIGON_RPC="YOUR_ERIGON_NODE_URL"
```
### Start
To start the program, run the following:
```sh
npm run start
```
This will run the app, giving you the following results in the console if new smart contracts are detected.
```sh
> [email protected] start
> node index.js
New smart contract detected!
New smart contract address: 0x00e9a503b88732ee3e28a0fec3343c405f5e963d
Deployed by address: 0x984380fc12cc3bdb894e1f35111dd992fb52a231
Deployed by transaction: 0xad8d3a6647a4ad7e2f8eedef258b4c3233d54e5999a855ca59500f5df70d35de
```
## Prerequisites
The system requires at least:
* Node.js v16.17.0— [install Node](https://nodejs.org/en/download/)
* A Chainstack RPC endpoint.
## Install
To install this project:
Clone this repository:
```sh
git clone https://github.com/soos3d/smart-contract-watcher-chainstack.git
```
Install dependencies:
From the root directory of the project run:
```sh
npm ci
```
> Use `npm ci` to launch a `clean install` of the dependencies. This will install the same version as in the `package.json` file.