swift-aws-lambda-runtime/Examples/HelloJSON/Sources/main.swift

//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftAWSLambdaRuntime open source project
//
// Copyright SwiftAWSLambdaRuntime project authors
// Copyright (c) Amazon.com, Inc. or its affiliates.
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftAWSLambdaRuntime project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//

import AWSLambdaRuntime

// in this example we are receiving and responding with JSON structures

// the data structure to represent the input parameter
struct HelloRequest: Decodable {
    let name: String
    let age: Int
}

// the data structure to represent the output response
struct HelloResponse: Encodable {
    let greetings: String
}

// the Lambda runtime
let runtime = LambdaRuntime {
    (event: HelloRequest, context: LambdaContext) in

    HelloResponse(
        greetings: "Hello \(event.name). You look \(event.age > 30 ? "younger" : "older") than your age."
    )
}

// start the loop
try await runtime.run()