Our smart contract is now live on the Testnet. Let's create a web interface (frontend) to interact with it.

JavaScript/TypeScript-based frontend applications communicate with the Algorand network using the algosdk-js library. AI can rapidly generate the code needed to create transactions using this library.

Prompt: // Using algosdk-js, write a TypeScript function to call the "increment" method of an Algorand smart contract.

AI Output: Copilot will generate a function like the one below, which creates a transaction that must be signed by a wallet:

import algosdk from 'algosdk';
import algosdk from 'algosdk';

/**
 * Prepares an unsigned application call transaction to invoke the "increment" method
 * of a smart contract deployed with Beaker.
 *
 * @param senderAddress - The address initiating the transaction
 * @param appID - The ID of the deployed application
 * @param algodClient - An instance of the Algod client
 * @returns An unsigned ApplicationCall transaction
 */
async function callIncrementMethod(
  senderAddress: string,
  appID: number,
  algodClient: algosdk.Algodv2
) {
  const suggestedParams = await algodClient.getTransactionParams().do();

  const appArgs = [new Uint8Array(Buffer.from("increment"))];

  const appCallTxn = algosdk.makeApplicationNoOpTxn(
    senderAddress,
    suggestedParams,
    appID,
    appArgs
  );

  // This transaction must now be signed with a wallet before submitting.
  return appCallTxn;
}