Interact with smart contracg

Moralis General
#1

We have created a smart contract now I need to interact with smart contract using frontend I have deposit function with address, amount, addressref need to interact using web3 how to start…

#2

Hi,
You’ll have to get user logged in with MetaMask and then you can use code like this:
For a call that is ‘free’ (as in you don’t have to pay gas):

    window.web3 = await Moralis.Web3.enable();
    let contractAbi = [{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"}];
    let contract = new web3.eth.Contract(contractAbi, contract_address);
    let name = await contract.methods.name().call();

for send (it will require gas and to sign the transaction in MetaMask):

    window.web3 = await Moralis.Web3.enable();
    let contract_instance = new web3.eth.Contract(
        abi, contract_address);
    await contract_instance.methods.fundContract()
        .send({ value: amount, from: ethereum.selectedAddress });