examples/components/services/test.fidl

// Copyright 2020 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library fuchsia.examples.services;

/// A Service representing a BankAccount, with two views of the data: read-only, and read-write.
service BankAccount {
    ReadOnlyAccount read_only;
    ReadWriteAccount read_write;
};

/// Provides read-only access to a bank account.
protocol ReadOnlyAccount {
    /// Returns the bank account owner's name.
    GetOwner() -> (string:MAX owner);

    /// Returns the bank account's current balance in cents.
    GetBalance() -> (int64 balance);
};

/// Provides read-write access to a bank account.
protocol ReadWriteAccount {
    compose ReadOnlyAccount;

    /// Withdraws `amount` cents from the bank account.
    /// Returns false if the account had insufficient funds.
    Debit(int64 amount) -> (bool succeeded);

    /// Deposits `amount` cents to the bank account.
    Credit(int64 amount) -> ();
};