To convert this type of ABI used in Ethers.jsconst humanReadableAbi = [ // hasClaimed mapping "function hasClaimed(address) public view returns (bool)", // Claim function "function claim(address to, uint256 numberTokens, bytes32[] calldata proof) external", ]; you need to use new Interface and convert it like thisconst iface = new Interface(humanReadableAbi); let jsonAbi: any = iface.format(FormatTypes.json); console.log(JSON.stringify(JSON.parse(jsonAbi), null, 2));

To convert this type of ABI used in Ethers.jsconst humanReadableAbi = [ // hasClaimed mapping "function hasClaimed(address) public view returns (bool)", // Claim function "function claim(address to, uint256 numberTokens, bytes32[] calldata proof) external", ]; you need to use new Interface and convert it like thisconst iface = new Interface(humanReadableAbi); let jsonAbi: any = iface.format(FormatTypes.json); console.log(JSON.stringify(JSON.parse(jsonAbi), null, 2));

Truffle has decent step debugger in its CLI, what is extra convinient is that you could step debug any transaction on any chain with it. Use this little trick. Run Ganache as fork of mainet or any other chain you want (check the docs for other chains)ganache --fork This will start a fork of mainet locally and all you have to do next is to find some transaction you want to step debug and add it to line like belowtruffle debug 0x75923601c12bb33d67a83d876f23f030abaaa9b21eae4b1e79c8532f821db902 -...

Truffle has decent step debugger in its CLI, what is extra convinient is that you could step debug any transaction on any chain with it. Use this little trick. Run Ganache as fork of mainet or any other chain you want (check the docs for other chains)ganache --fork This will start a fork of mainet locally and all you have to do next is to find some transaction you want to step debug and add it to line like belowtruffle debug 0x75923601c12bb33d67a83d876f23f030abaaa9b21eae4b1e79c8532f821db902 -...

I wanted to have one setter for array so I can just pass the variable to it and push the element to proper array, way to do this would be to have one internal function and one public that gets the element and chooses proper array. string[] public goalkeeepr = [] string[] public left_back = [] ....... function addPlayer(string memory position, string memory name) public { if (keccak256(bytes(position)) == keccak256(bytes("GK"))) { addToArray(goalkeeepr, name); } else if (keccak256(bytes(positi...

I wanted to have one setter for array so I can just pass the variable to it and push the element to proper array, way to do this would be to have one internal function and one public that gets the element and chooses proper array. string[] public goalkeeepr = [] string[] public left_back = [] ....... function addPlayer(string memory position, string memory name) public { if (keccak256(bytes(position)) == keccak256(bytes("GK"))) { addToArray(goalkeeepr, name); } else if (keccak256(bytes(positi...

Often you will see in tutorials ppl copy pasting ABIs in JS scripts, which is tiresome, its much easier to just import them to your script and always have fresh version, to do that you need to addconst Display = require('../build/contracts/Display.json'); const ABI = Display.abi; and now you will have your ABI in ABI constant and you can use it when connecting to chain provider and calling some methods.

Often you will see in tutorials ppl copy pasting ABIs in JS scripts, which is tiresome, its much easier to just import them to your script and always have fresh version, to do that you need to addconst Display = require('../build/contracts/Display.json'); const ABI = Display.abi; and now you will have your ABI in ABI constant and you can use it when connecting to chain provider and calling some methods.

If you need to send some ETH to contract and call a method on it, this is the code how you should do it.const web3Instance = new web3(provider); const nftContract = new web3Instance.eth.Contract( ABI, NFT_CONTRACT_ADDRESS, { gasLimit: "1000000" } ); const send = await nftContract.methods.claim().send({from:OWNER_ADDRESS, to:NFT_CONTRACT_ADDRESS, value:web3Instance.utils.toWei("0.2", "ether"), gasPrice: gasPriceWei}); if you just want to send some ETH to contract or some other wallet, you can ...

If you need to send some ETH to contract and call a method on it, this is the code how you should do it.const web3Instance = new web3(provider); const nftContract = new web3Instance.eth.Contract( ABI, NFT_CONTRACT_ADDRESS, { gasLimit: "1000000" } ); const send = await nftContract.methods.claim().send({from:OWNER_ADDRESS, to:NFT_CONTRACT_ADDRESS, value:web3Instance.utils.toWei("0.2", "ether"), gasPrice: gasPriceWei}); if you just want to send some ETH to contract or some other wallet, you can ...

If you getting keep getting both or either **"Contract code size exceeds 24576 bytes " or ** "Stack too deep when compiling inline assembly: Variable _3 is 8 slots" (replace 3 and 8 with x and y in your case) there is are some solutions that could help depending on the case, sometimes you will need to refactor your smart contracts and make them smaller in size or add state changes after deployment to make SC smaller. You can use optimizer with settings like this (Hardhat and Truffle) and this...

If you getting keep getting both or either **"Contract code size exceeds 24576 bytes " or ** "Stack too deep when compiling inline assembly: Variable _3 is 8 slots" (replace 3 and 8 with x and y in your case) there is are some solutions that could help depending on the case, sometimes you will need to refactor your smart contracts and make them smaller in size or add state changes after deployment to make SC smaller. You can use optimizer with settings like this (Hardhat and Truffle) and this...

Installing truffle globally, permission errorsIf you are using Truffle and want to install it globally with NPM but having some permission errors like permission denied, open '/root/.config/truffle/config.json' you can use unsafe and allow root parameters to achieve that, like with the line below sudo npm install -g truffle --unsafe-perm=true --allow-rootEnable optimizer for your truffle project (when contract is larger then 24kb)You will need to update your truffle-config.js config...

Installing truffle globally, permission errorsIf you are using Truffle and want to install it globally with NPM but having some permission errors like permission denied, open '/root/.config/truffle/config.json' you can use unsafe and allow root parameters to achieve that, like with the line below sudo npm install -g truffle --unsafe-perm=true --allow-rootEnable optimizer for your truffle project (when contract is larger then 24kb)You will need to update your truffle-config.js config...

Install https://www.npmjs.com/package/@nomiclabs/hardhat-etherscan as hardhat plugin then with your deploy just use this snippet if (network.config.chainId === 4) { await mySmartContract.deployTransaction.wait(6); await verify(mySmartContract.address, [descriptorContract.address]); } and then this function which will deploy it to etherscanasync function verify(addy, args) { console.log("verifying contract"); try { await run("verify:verify", { address: addy, constructorArguments: args, }); } c...

Install https://www.npmjs.com/package/@nomiclabs/hardhat-etherscan as hardhat plugin then with your deploy just use this snippet if (network.config.chainId === 4) { await mySmartContract.deployTransaction.wait(6); await verify(mySmartContract.address, [descriptorContract.address]); } and then this function which will deploy it to etherscanasync function verify(addy, args) { console.log("verifying contract"); try { await run("verify:verify", { address: addy, constructorArguments: args, }); } c...

Way to calculate how much gas was used in trx is to destruct the transaction object as below and multiply gas used with gas price. const transactionResponse = await fundMe.withdraw(); const transactionReceipt = await transactionResponse.wait(1); const { gasUsed, effectiveGasPrice } = transactionReceipt; const gasCost = gasUsed.mul(effectiveGasPrice);

Way to calculate how much gas was used in trx is to destruct the transaction object as below and multiply gas used with gas price. const transactionResponse = await fundMe.withdraw(); const transactionReceipt = await transactionResponse.wait(1); const { gasUsed, effectiveGasPrice } = transactionReceipt; const gasCost = gasUsed.mul(effectiveGasPrice);

Since 2019 this is recommended way to do it function transfer(address payable _to, uint256 amount) public nonReentrant onlyOwner{ (bool sent,) = _to.call{value: amount}(""); require(sent, "Failed to send Ether"); }

Since 2019 this is recommended way to do it function transfer(address payable _to, uint256 amount) public nonReentrant onlyOwner{ (bool sent,) = _to.call{value: amount}(""); require(sent, "Failed to send Ether"); }

This works with all networks with EVM, to check what is block gas limit call this from your JS script web3Instance.eth.getBlock("latest", false, (error, result) => { console.log(result.gasLimit) }); and to get how much your method is spending and is it below block limit contract.methods.functionDoingSomething(parametar).estimateGas({ }, function (error, gasAmount) { console.log(gasAmount); });

This works with all networks with EVM, to check what is block gas limit call this from your JS script web3Instance.eth.getBlock("latest", false, (error, result) => { console.log(result.gasLimit) }); and to get how much your method is spending and is it below block limit contract.methods.functionDoingSomething(parametar).estimateGas({ }, function (error, gasAmount) { console.log(gasAmount); });

There are few options you can choose when step debugging solidity. 1. There is truffle CLI debugger. 2. There is truffle GUI VS Code debugger 3. There is remix IDE on website 4. There is remix IDE as plugin for VS Code I recommend you setup forth solution, as it is most robust and has best UX.

There are few options you can choose when step debugging solidity. 1. There is truffle CLI debugger. 2. There is truffle GUI VS Code debugger 3. There is remix IDE on website 4. There is remix IDE as plugin for VS Code I recommend you setup forth solution, as it is most robust and has best UX.