Ethereum: I get this error when i try calling the getBalance function in node.js

Understanding Ethereum node.Js Error: “Warning: Calling an account that is not a contract”

When using Node Api Ethereum in Node.JS, it is not unusual to encounter errors related to interaction with accounts that are not contracts. In this article, we dive into what this error message suggests and how to solve it.

What does an error message mean?

The warning message comes from the Ethereum node, suggesting that you are trying to call a method in an account that is not a contract. This may seem contra they are contracted, as the accounts are designed to hold an ether (ETH) and perform various actions such as sending, receiving or performing intelligent contracts.

This error is basically occurring when your Node.JS app attempts to interact with an account in a way that is not allowed by its owner. There are several reasons why this could happen:

• In some cases, however, the same account is used for both purposes.

• Incorrect Account Type : If your Node.JS app attempts to call a method in an account that does not match its type (eg try to call et_chainid in the user’s account).

• Missing or incorrect API keys : Ethereum node may require specific permits or settings that you don’t need to set correctly.

Common scenarios causing an error

Here are a few common reasons why this warning message may appear:

• You are trying to load accounts from et_acounts' fields without indicating whether they belong to a contract or a user's wallet.

• Your Node.JS application incorrectly processes an account type for calling methods likeGetbalance,Send or Call.

• Ethereum node has been configured with incorrect permits or settings, leading to the missing API keys.

Solving error

To solve this problem, make sure your Node.JS app is:

• Use of the correct account type : Always verify that the account belongs to the user’s contract or wallet.

• Correct account type : Use an “address” option instead of JustAccount ”when accessing ethcounts ”.

• Checking the missing or incorrect API keys : Verify that your application uses the required permissions and settings provided by the Ethereum node.

Example code to solve error

Here is an updated example of how you could load accounts from the et_accounts field that states whether they belong to the user's contract or wallet:

Javascript

Const {web3} = require (“Web3”);

Async function Main () {)

// Set an instance of API Node Api Ethereum

Const Web3 = New Web3 (New Web3.Providers.httpprovider (‘

try {

// to load accounts from the ET_ACCOUNS field, specifying whether they belong to the contract or wallet of the user

Const Accounts = expect web3.eth.getacounts ();

For (Const Accounts Accounts) {

IF (stranger .Type === “Contract”) {// or you can check the type using account.data.type

Console.log (Contract Account: $ {cance.address);

} Else {

Console.log (User Account: $ {Account.address );

}

}

} Catch (Error) {

Console.error (Error);

} Finally {

// clean all sources

IF (web3! == undefined && web3.Providers) {

Web3.Providers.Clear ();

}

}

}

Main ();

According to these instructions and updated code, you should be able to solve “Warning: Calling an account that is not a contract”, when interacting with Ethereum nodes in your Node.Js.