Error: Can’t call the ‘Writing’ function on the Ethereum contract using Ethers.js
When working with smart contracts on Ethereum blockchain, it is common to use tools like etthers.JS to interact with the contract instance. However, there is a crucial step that many developers overlook when creating their first Ethereum contracts using Ethers.js: The call for methods at an instance of contracts.
In this article, we will explore why you could find a mistake when trying to call the “Write” function on the Ethereum contract using ethers.js and provide guidelines on how to solve it.
Question:
When you declare an instance of a contract in the local Hardhat network using the following code:
`Javascript
Const Account0 = “0xac0974bec39a17e36ba4a6b4d238ff944BB478cBed5efcae784d7bf4F2Fs8”;
`
You are creating a new instance of the Ethereum of the contract. However, ethers.JS does not automatically register the contract with the Ethereum network. In order to communicate with a contract on your local hardhat network, you must call his methods and use the functioncalls’ s ethers.js.
Solution:
To solve this problem, you can add the next code before you call any method at an instance of the contract:
`Javascript
Contract = new contract (account0);
`
This creates a new instance of the contract using the address of the said account. You will also need to call the functioncallEthers.js to make calls for the contract instance method.
Example Code:
Here's an updated example of how you can declare an instance of a contract and call his methods using ether.js:
Javascript
const {eters} = demand (“hardhat”);
// Define the ABI Agree
Const Abi = [
{
Inputs: [],
Statemutability: “View”,
Type: “Function”
Mozhlo
{
Inputs: [“String”, “int”, “Boolean”],
Statemutability: “Write”,
Type: “Function”
Iche
];
// Create a new instance of a contract using hardhat
Async function main () {{
Const Account0 = “0xac0974bec39a17e36ba4a6b4d238ff944BB478cBed5efcae784d7bf4F2Fs8”;
Const Treaty Treaty = wait for ether.getcontractory (“YourContractname”);
Const Treaty = wait for the contract for the contract.Deploy (Account0);
// Call Method at an instance of a contract
Const result = Wait Treaty. Call ();
Console.log (result); // Exit: Your return value
// Delete an instance of the contract
awaits the contract.destroy ();
Iche
// Start the main function using hardhat
main();
`
Conclusion:
In this article, we have highlighted the important step in interacting with smart contracts on Ethereum blockchain using ethers.js. By creating a new instance of contracts and calling for its methods, you can perform different actions on the local hardhat network.
Remember to update your code accordingly, to use a variable ofCONTRIPTINESTANS` throughout the function. Good luck coding!
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