Save key-value data to an account

Saving a key-value pair to an account using the controller

You can find more information here regarding the account storage.

{
    // create the entrypoint and the account controller
    const entrypoint = new DevnetEntrypoint();
    const controller = entrypoint.createAccountController();

    const filePath = path.join("../src", "testdata", "testwallets", "alice.pem");
    const alice = await Account.newFromPem(filePath);

    // creating the key-value pairs we want to save
    const keyValuePairs = new Map([[Buffer.from("key0"), Buffer.from("value0")]]);

    // fetch the nonce of the network
    alice.nonce = await entrypoint.recallAccountNonce(alice.address);

    const transaction = await controller.createTransactionForSavingKeyValue(alice, alice.getNonceThenIncrement(), {
        keyValuePairs: keyValuePairs,
    });

    // sending the transaction
    const txHash = await entrypoint.sendTransaction(transaction);
}

Saving a key-value pair to an account using the factory

{
    // create the entrypoint and the account factory
    const entrypoint = new DevnetEntrypoint();
    const factory = entrypoint.createAccountTransactionsFactory();

    // create the account to guard
    const filePath = path.join("../src", "testdata", "testwallets", "alice.pem");
    const alice = await Account.newFromPem(filePath);

    // creating the key-value pairs we want to save
    const keyValuePairs = new Map([[Buffer.from("key0"), Buffer.from("value0")]]);

    const transaction = await factory.createTransactionForSavingKeyValue(alice.address, {
        keyValuePairs: keyValuePairs,
    });

    // fetch the nonce of the network
    alice.nonce = await entrypoint.recallAccountNonce(alice.address);

    // set the nonce
    transaction.nonce = alice.getNonceThenIncrement();

    // sign the transaction
    transaction.signature = await alice.signTransaction(transaction);

    // sending the transaction
    const txHash = await entrypoint.sendTransaction(transaction);
}