ethereum-read-functions v0.0.1

Read smart contract functions from the ethereum and every other evm blockchain.

Fetch tokenURI and Name

require( 'dotenv' ).config( { path: '.env' } )
const { readFunction } = require( 'ethereum-read-functions' )

const config = {
    'cmds': [ 'tokenURI(1)', 'name()' ],
    'network': 'homestead',
    'address': '0xFF9C1b15B16263C61d017ee9F65C50e4AE0113D7',
    'etherscan_api_key': process.env.ETHERSCAN_API_KEY,
    'infura_project_id': process.env.INFURA_PROJECT_ID,
    'infura_project_secret': process.env.INFURA_PROJECT_SECRET,
}

readFunction( config )
.then( ( result ) => console.log( result ) )
.catch( ( e ) => console.log( e ) )

Unverified source code on Etherscan
Set try blind to true

require( 'dotenv' ).config( { path: '.env' } )
const { readFunction } = require( 'ethereum-read-functions' )

const config = {
    'cmds': [ 'tokenURI(19)' ],
    'network': 'homestead',
    'address': '0x4ef107a154cb7580c686c239ed9f92597a42b961',
    'etherscan_api_key': process.env.ETHERSCAN_API_KEY,
    'infura_project_id': process.env.INFURA_PROJECT_ID,
    'infura_project_secret': process.env.INFURA_PROJECT_SECRET,
    'try_blind': true,
}

readFunction( config )
.then( ( result ) => console.log( result ) )
.catch( ( e ) => console.log( e ) )

Fetch all viewable Functions

require( 'dotenv' ).config( { path: '.env' } )
const { readFunction } = require( 'ethereum-read-functions' )

const config = {
    'cmds': [],
    'network': 'homestead',
    'address': '0x4ef107a154cb7580c686c239ed9f92597a42b961',
    'etherscan_api_key': process.env.ETHERSCAN_API_KEY,
    'infura_project_id': process.env.INFURA_PROJECT_ID,
    'infura_project_secret': process.env.INFURA_PROJECT_SECRET,
    'try_all': true
}

readFunction( config )
.then( ( result ) => console.log( result ) )
.catch( ( e ) => console.log( e ) )

1. Examples
2. Quickstart
3. Setup
4. Options
5. Contributing
6. License
7. Code of Conduct
8. Support my Work

require( 'dotenv' ).config( { path: '.env' } )
const { readFunction } = require( 'ethereum-read-functions' )

readFunction( {
    'cmds': [ 'tokenURI(19)' ],
    'network': 'homestead',
    'address': '0x4ef107a154cb7580c686c239ed9f92597a42b961',
    'etherscan_api_key': process.env.ETHERSCAN_API_KEY,
    'infura_project_id': process.env.INFURA_PROJECT_ID,
    'infura_project_secret': process.env.INFURA_PROJECT_SECRET,
} )
.then( ( result ) => console.log( result ) )
.catch( ( e ) => console.log( e ) )

npm i ethereum-read-functions

{
    'cmds': null,
    'address': null,
    'network': 'homestead',
    'etherscan_api_key': process.env.ETHERSCAN_API_KEY,
    'infura_project_id': process.env.INFURA_PROJECT_ID,
    'infura_project_secret': process.env.INFURA_PROJECT_SECRET,
    'silent': false,
    'shrink': true,
    'try_blind': true,
    'try_all': true
}

Validation | Name | Type | Required | Default | Description | |------:|:------|:------|:------|:------| | cmds | Array of numbers or strings | No | [] | Set here your function names. If you set 1 it will interpreted as tokenURI(1). Please cast long int to string. | | address | String | Yes | | Set smart contract address here | | network | String | Yes | "Homestead" | Choose network. Homestead === Ethereum Mainnet, visit etherjs documentation for more Informations | | etherscan_api_key | String | Yes | "" | Some request will work without api key. More Informations to Etherscan Api you can find here | | infura_project_id | String | Yes | "" | More Informations to Infura´s Api you can find here | | infura_secret_id | String | Yes | "" | More Informations to Infura´s Api you can find here | | silent | Boolean | no | false | By default console output will print helpful status messages. | | shrink | Boolean | no | true | Reduces to size of the result. | | try_blind | Boolean | no | false | Experimental! If no ABIs was found (means Etherscan source code is verified) the algorithm uses a default ABIs to guess the ABI and fetch only a tokenURI call. | | try_all | Boolean | no | false | Experimental! Search inside of ABIs for viewable function without parameters and fetch them all automatically. |

Bug reports and pull requests are welcome on GitHub at https://github.com/a6b8/ethereum-read-functions. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

• Not tested for production
• Works only with Infura and Etherscan.
• Build for NFT request only.

• Function are executed with ether.js

• ABIs are fetched from Etherscan once for every address.

The module is available as open source under the terms of the MIT License.

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