add swift lambda scaffold

lambda/swift/.gitignore

@@ -0,0 +1,8 @@
+.DS_Store
+/.build
+/Packages
+xcuserdata/
+DerivedData/
+.swiftpm/configuration/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc

lambda/swift/Package.swift

@@ -0,0 +1,29 @@
+// swift-tools-version: 6.0
+import PackageDescription
+
+let package = Package(
+    name: "SwiftExample",
+    platforms: [.macOS(.v15)],
+    dependencies: [
+        .package(url: "https://github.com/awslabs/aws-sdk-swift", from: "1.0.0"),
+        .package(url: "https://github.com/swift-server/swift-aws-lambda-events.git", from: "1.2.1"),
+        .package(url: "https://github.com/swift-server/swift-aws-lambda-runtime.git", from: "2.0.0"),
+        .package(url: "https://github.com/swift-server/swift-service-lifecycle.git", from: "2.0.0"),
+    ],
+    targets: [
+        .executableTarget(
+            name: "SwiftExample",
+            dependencies: [
+                .product(name: "AWSDynamoDB", package: "aws-sdk-swift"),
+                .product(name: "AWSLambdaEvents", package: "swift-aws-lambda-events"),
+                .product(name: "AWSLambdaRuntime", package: "swift-aws-lambda-runtime"),
+                .product(name: "ServiceLifecycle", package: "swift-service-lifecycle"),
+            ]
+        ),
+        .testTarget(
+            name: "SwiftExampleTests",
+            dependencies: ["SwiftExample"],
+            resources: [.process("Resources")]
+        )
+    ]
+)

lambda/swift/Sources/SwiftExample/Event.swift

@@ -0,0 +1,26 @@
+import AWSDynamoDB
+
+struct Event {
+    let id: String
+    let emitterCode: Int
+    let action: String
+    let user: User
+
+    func asItem() -> [String: DynamoDBClientTypes.AttributeValue]  {
+        [
+            CodingKeys.id.rawValue: .s(id),
+            CodingKeys.emitterCode.rawValue: .n(String(emitterCode)),
+            CodingKeys.action.rawValue: .s(action),
+            CodingKeys.user.rawValue: .m(user.asItem())
+        ]
+    }
+}
+
+extension Event: Codable {
+    enum CodingKeys: String, CodingKey {
+        case id = "eventId"
+        case emitterCode
+        case action
+        case user
+    }
+}

lambda/swift/Sources/SwiftExample/User.swift

@@ -0,0 +1,25 @@
+import AWSDynamoDB
+
+struct User {
+    let id: String
+    let sessionID: String
+    let deviceID: String
+
+    func asItem() -> [String: DynamoDBClientTypes.AttributeValue]  {
+        [
+            CodingKeys.id.rawValue: .s(id),
+            CodingKeys.sessionID.rawValue: .s(sessionID),
+            CodingKeys.deviceID.rawValue: .s(deviceID),
+        ]
+    }
+
+
+}
+
+extension User: Codable {
+    enum CodingKeys: String, CodingKey {
+        case id
+        case sessionID = "sessionId"
+        case deviceID = "deviceId"
+    }
+}