I can guide it through the process of creating an article with an extract from the sample code that demonstrates how to use the ANKR API and the supplier to send BP20 tokens from one address to another. However, I will also provide a summary of what the “invalid” error in this context usually means.
Summary of the error “Invalid Sender”
When using intelligent Ethereum-based or DApps that depend on ERC-20 token standards (such as BEP20), the “invalid” error occurs when an attempt is made to transfer tokens from one account to another. This error usually happens because the sender’s address does not match the receiver address.
Sample Code: Transfer of BEP20 tokens using ANKR API and supplier
Here is an example of step by step on how you can use the API API provider for Web3, together with the “ETH” library, to send BP20 tokens from one address to another:
`Javascript
Const {web3provider} = requires (‘web3_provider’);
Consist {ethclient} = requires (‘@ankr/eth-client’);
// replace “your_provider_url” and “your_address_to_send_from” reserved space for the actual supplier and the consignor’s account address.
Const Furndirl = ‘
Consisted deckstestsndfrom = ‘0xyofursendedres’;
Const resevereddress = ‘0xyouurcetraddress’;
Sendbep20tokens asynchronous function (sender, receiver) {
// set the web3provider court with your provider’s URL.
Const web3provider = new web3provider (supplier);
to try {
// initialize a new customer instance using the API provider ANKR Ethereum.
CON CUSTOM = ETHCLient ({
Supplier: Web3provider,
Apiveiver: ‘v4.0.2’,
});
// get a list of all available accounts.
CONT CONT = WAITING CUSTOMER.GETACCOUNTS ();
// Create an ETHERSCAN address in the sender’s account, if not, otherwise use the address provided.
If (! Cont.include (followed TheDRESTOSENDFROM))) {
Constinerscanaddress = await cliver.getaccount (SeveraraddressStiSendfrom);
Recepctordress = Newerscanaddress;
}
// Get the balance of the tokens sent from the sender’s account using the BP20 token standard.
Const tokensent = wait cliver.getbalance (SeveradddredStestndfrom);
// Send a certain number of tokens to the receiver.
for (let’s go i = 0; i
await client.Sendransction ({
From:
For: Prim -Ras,
Value: ‘1’,
Gas: 200000,
Gasprice: 10000,
});
}
console.log (‘Successful Bep20 token transfer!’);
} Catch (error) {
console.error (error);
}
}
// use:
Sendbep20tokens (SenderstardresStosndfrom, first -British);
`
In this example:
- We set up aweb3provider instance with your URL of your ANKR provider.
- We start an Ethereum customer using the ANKR supplier.
- We get all the accounts available in the network and create an Etherscan address in the sender’s account, if not, otherwise we use the address provided.
- We recover the balance of the sender’s account chips using the BP20 token standard.
- I sent a certain number of tokens to the receiver.
This is a basic example and may need adjustments based on your specific requirements or ANKR supplier settings. Also, make sure you have the necessary installations installed (@ankr/eth-client and ETH) and if your project is in accordance with the safety measures to use the Ethereum network.