Created
April 11, 2019 16:45
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Interact with deployed smart contract
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const fs = require("fs-extra"); | |
const {web3} = require("./web3"); | |
const compileContract = require("./build/Message.json"); | |
// Contract object deployed on network (ganache-cli or testnet or mainnet) | |
// network can be selected in web3 file | |
// cont | |
const getContractObject = () => { | |
const contractReceipt = require("./receipt-ganache.json"); | |
// create a contract object/instance | |
const contractObject = new web3.eth.Contract( | |
JSON.parse(compileContract.interface), | |
contractReceipt.address | |
); | |
return contractObject; | |
}; | |
const setMessage = async (newMessage) => { | |
const accounts = await web3.eth.getAccounts(); | |
const contractObject = getContractObject(); | |
const receipt = await contractObject.methods | |
.setMessage(newMessage) | |
.send({from : accounts[0], gas:1000000}); | |
console.info(receipt); | |
console.info("Message successfully saved!"); | |
return receipt; | |
}; | |
const getMessage = async () => { | |
const contractObject = getContractObject(); | |
const accounts = await web3.eth.getAccounts(); | |
const result = await contractObject.methods | |
.getMessage() | |
.call({from:accounts[0]}); | |
console.log(result); | |
return result; | |
}; | |
module.exports = { | |
setMessage, | |
getMessage | |
}; |
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