Ethereum – Visual Ways to Interact with Smart Contracts

contract-deploymentremixtransactions

I would like to interact with a smart contract deployed on a particular Ethereum TestNet using an address different from the one I used to create/deploy the contract which as far as I know is not possible in the Remix IDE which only allows you to connect to one MetaMask account at a time for the Injected Web3 Environment.

Hence I would like to know if there's an alternative to the Remix Deploy & Run Transactions tab, which allows you to enter a contract address and automatically generates a list of the contracts public methods to interact with like in Remix, which I can then connect to using a specific MetaMask account and issue transactions to that smart contract. Also I have to interact with the contract on a TestNet as I'm interacting with a Chainlink Data Feed(via AggregatorV3Interface), so I don't think changing the Remix Deploy Environment to Javascript VM and using the dummy accounts available in that environment would be a feasible option.

Best Answer

Yes, If you verify your contract you can call contracts's functions from scanner sites. for example https://rinkeby.etherscan.io/ for rinkeby testnet. for every contract in scanner sites there is a tab named Contract and you can verify your contract there

Related Solutions

Remix IDE Kovan Network – Unable to Interact with a Contract on Kovan Network Using Remix IDE

Your steps to use Remix are fine, so just two remarks that might help:

Make sure you have selected your contract CampaignFactory in field CONTRACT from <Deploy & Run transactions> menu. Otherwise, if you put the contract address but you haven't selected the contract, it won't deploy it in Remix. The field CONTRACT is linked to the file explorer, where you save all your contracts.
Your contract is apparently not compiling. Not sure what you try to achieve, your Solidity pragma and the reason to return an empty array, but you need to add the location in the return type. E.g.:
```
function getDeployedCampaigns() public view returns (address[] memory) {
   return deployedCampaigns;
}
```
Extra: probably not the case, but I have had issues when using Remix with https, so better to use http if your browser allows to do so.

solidity – Sending ETH to Deployed Contract Between Two Metamask Wallets

When you send money to a smart contract, you'll have to call a payable function. It's not possible directly via Metamask, as Metamask merely sends a transaction without any data unless specifically requested to do so via its API. To send send money, you can change your Metamask to wallet B and call sendMoney() function of the contract along with some ETH.

If you want your smart contract to accept money without being called via specific function, you can define a receive function like this.

receive() external payable {
    sendMoney();
}

This tells the contract to accept payment (those sent as normal transactions as you mentioned). This is a security feature of solidity to safeguard accidental sending of ETH to smart contracts which might not have a withdrawal mechanism.

Best Answer

Related Solutions

Remix IDE Kovan Network – Unable to Interact with a Contract on Kovan Network Using Remix IDE

solidity – Sending ETH to Deployed Contract Between Two Metamask Wallets

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