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split out functions, removed unused vars #1

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split out functions, removed unused vars #1

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53 changes: 35 additions & 18 deletions 0_transferHbar2Contract_viaCryptoTransfer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,14 +6,9 @@ const {
Client,
FileCreateTransaction,
ContractCreateTransaction,
ContractFunctionParameters,
ContractExecuteTransaction,
ContractCallQuery,
Hbar,
TransferTransaction,
ContractInfoQuery,
AccountBalanceQuery,
TransactionRecordQuery,
} = require("@hashgraph/sdk");
const fs = require("fs");

Expand All @@ -22,8 +17,6 @@ const operatorId = AccountId.fromString(process.env.OPERATOR_ID);
const operatorKey = PrivateKey.fromString(process.env.OPERATOR_PVKEY);
const treasuryId = AccountId.fromString(process.env.TREASURY_ID);
const treasuryKey = PrivateKey.fromString(process.env.TREASURY_PVKEY);
const aliceId = AccountId.fromString(process.env.ALICE_ID);
const aliceyKey = PrivateKey.fromString(process.env.ALICE_PVKEY);

const client = Client.forTestnet().setOperator(operatorId, operatorKey);

Expand All @@ -33,48 +26,72 @@ async function main() {
"0_transferHbar2Contract_viaCryptoTrans_sol_hbar2Contract.bin"
);

// Create a file on Hedera and store the bytecode
const fileID = await createFile(contractBytecode);
const contractID = await initContract(fileID);
await transferToContract(contractID);

const { contractInfoQueryBal, getBalanceBal } = await getBalances(contractID);
console.log(`- Contract balance (from getBalance fcn): ${getBalanceBal} \n`);
console.log(`- Contract balance (from ContractInfoQuery): ${contractInfoQueryBal} \n`);
}
main();


// Create a file on Hedera and store the bytecode
async function createFile(bytecode) {
const fileCreateTx = new FileCreateTransaction()
.setContents(contractBytecode)
.setContents(bytecode)
.setKeys([operatorKey])
.freezeWith(client);
const fileCreateSign = await fileCreateTx.sign(operatorKey);
const fileCreateSubmit = await fileCreateSign.execute(client);
const fileCreateRx = await fileCreateSubmit.getReceipt(client);
const bytecodeFileId = fileCreateRx.fileId;
console.log(`- The bytecode file ID is: ${bytecodeFileId} \n`);
return bytecodeFileId
}

// Instantiate the smart contract
// Instantiate the smart contract
async function initContract(fileID) {
const contractInstantiateTx = new ContractCreateTransaction()
.setBytecodeFileId(bytecodeFileId)
.setBytecodeFileId(fileID)
.setGas(100000);
const contractInstantiateSubmit = await contractInstantiateTx.execute(client);
const contractInstantiateRx = await contractInstantiateSubmit.getReceipt(client);
const contractId = contractInstantiateRx.contractId;
const contractAddress = contractId.toSolidityAddress();
console.log(`- The smart contract ID is: ${contractId} \n`);
console.log(`- The smart contract ID in Solidity format is: ${contractAddress} \n`);
return contractId;
}

// Transfer HBAR to smart contract using TransferTransaction()
const contractExecuteTx = new TransferTransaction()
// Transfer HBAR to smart contract using TransferTransaction()
async function transferToContract(contractId) {
const contractExecuteTx = new TransferTransaction()
.addHbarTransfer(treasuryId, -10)
.addHbarTransfer(contractId, 10)
.freezeWith(client);
const contractExecuteSign = await contractExecuteTx.sign(treasuryKey);
const contractExecuteSubmit = await contractExecuteSign.execute(client);
const contractExecuteRx = await contractExecuteSubmit.getReceipt(client);
console.log(`- Crypto transfer to contract: ${contractExecuteRx.status} \n`);
}

// Query the contract balance calling the function in the contract
// Query the contract balance calling the function in the contract
async function getBalances(contractId) {
const contractQueryTx = new ContractCallQuery()
.setContractId(contractId)
.setGas(100000)
.setFunction("getBalance");
const contractQuerySubmit = await contractQueryTx.execute(client);
const contractQueryResult = contractQuerySubmit.getUint256(0);
console.log(`- Contract balance (from getBalance fcn): ${contractQueryResult} \n`);
const getBalanceBal = contractQuerySubmit.getUint256(0);


const cCheck = await new ContractInfoQuery().setContractId(contractId).execute(client);
console.log(`- Contract balance (from ContractInfoQuery): ${cCheck.balance.toString()} \n`);
const contractInfoQueryBal = cCheck.balance.toString();

return {
contractInfoQueryBal,
getBalanceBal
}
}
main();