Contracts

Connect to contracts and interact with their methods

Connect to Contract

Enter a contract address and ABI to interact with it

Contract Address

Connection Status

Not connected

Contract ABI

[
  {
    "name": "name",
    "type": "function",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "name": "",
        "type": "string"
      }
    ]
  },
  {
    "name": "symbol",
    "type": "function",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "name": "",
        "type": "string"
      }
    ]
  },
  {
    "name": "decimals",
    "type": "function",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "name": "",
        "type": "uint8"
      }
    ]
  },
  {
    "name": "totalSupply",
    "type": "function",
    "stateMutability": "view",
    "inputs": [],
    "outputs": [
      {
        "name": "",
        "type": "uint256"
      }
    ]
  },
  {
    "name": "balanceOf",
    "type": "function",
    "stateMutability": "view",
    "inputs": [
      {
        "name": "account",
        "type": "address"
      }
    ],
    "outputs": [
      {
        "name": "",
        "type": "uint256"
      }
    ]
  },
  {
    "name": "transfer",
    "type": "function",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "to",
        "type": "address"
      },
      {
        "name": "amount",
        "type": "uint256"
      }
    ],
    "outputs": [
      {
        "name": "",
        "type": "bool"
      }
    ]
  },
  {
    "name": "approve",
    "type": "function",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "spender",
        "type": "address"
      },
      {
        "name": "amount",
        "type": "uint256"
      }
    ],
    "outputs": [
      {
        "name": "",
        "type": "bool"
      }
    ]
  },
  {
    "name": "transferFrom",
    "type": "function",
    "stateMutability": "nonpayable",
    "inputs": [
      {
        "name": "from",
        "type": "address"
      },
      {
        "name": "to",
        "type": "address"
      },
      {
        "name": "amount",
        "type": "uint256"
      }
    ],
    "outputs": [
      {
        "name": "",
        "type": "bool"
      }
    ]
  }
]

Pre-filled with standard ERC-20 ABI for demonstration

SDK Code Example

How to interact with contracts using the Quais SDK

import { Contract, JsonRpcProvider } from 'quais';

// Connect to provider
const provider = new JsonRpcProvider(
  'https://rpc.quai.network'
);

// Create contract instance
const contract = new Contract(
  contractAddress,
  abi,
  provider
);

// Call read method
const symbol = await contract.symbol();