Amazon Nova converse text

Author: monadierickx

.doc_gen/metadata/bedrock-runtime_metadata.yaml

@@ -132,6 +132,14 @@ bedrock-runtime_Converse_AmazonNovaText:
             - description: Send a text message to Amazon Nova, using Bedrock's Converse API.
               snippet_tags:
                 - python.example_code.bedrock-runtime.Converse_AmazonNovaText
+    Swift:
+      versions:
+        - sdk_version: 3
+          github: swift/example_code/bedrock-runtime
+          excerpts:
+            - description: Send a text message to Amazon Nova, using Bedrock's Converse API.
+              snippet_tags:
+                - swift.example_code.bedrock-runtime.Converse_AmazonNovaText
   services:
     bedrock-runtime: {Converse}
 

swift/example_code/bedrock-runtime/models/amazon-nova/amazon-nova-text/Package.swift

@@ -0,0 +1,30 @@
+// swift-tools-version: 6.1
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "AmazonNovaText",
+    // Let Xcode know the minimum Apple platforms supported.
+    platforms: [
+        .macOS(.v13),
+        .iOS(.v15)
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.3.0"),
+        .package(url: "https://github.com/awslabs/aws-sdk-swift", from: "1.2.61")
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package, defining a module or a test suite.
+        // Targets can depend on other targets in this package and products from dependencies.
+        .executableTarget(
+            name: "Converse",
+            dependencies: [
+                .product(name: "AWSBedrockRuntime", package: "aws-sdk-swift"),
+                .product(name: "ArgumentParser", package: "swift-argument-parser")
+            ],
+            path: "Sources/Converse"
+        )
+    ]
+)

swift/example_code/bedrock-runtime/models/amazon-nova/amazon-nova-text/Sources/Converse/main.swift

@@ -0,0 +1,60 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+//
+// An example demonstrating how to use converse with Amazon Nova Micro
+
+// snippet-start:[swift.example_code.bedrock-runtime.Converse_AmazonNovaText]
+import ArgumentParser
+import AWSClientRuntime
+import Foundation
+import AWSBedrockRuntime
+
+func converse(_ textPrompt: String) async throws -> String {
+
+    // Create a Bedrock Runtime client in the AWS Region you want to use.
+    let config = try await BedrockRuntimeClient.BedrockRuntimeClientConfiguration(region: "us-east-1")
+    let client = BedrockRuntimeClient(config: config)
+
+    // Set the model ID.
+    let modelId = "amazon.nova-micro-v1:0"
+
+    // Start a conversation with the user message.
+    let message = BedrockRuntimeClientTypes.Message(
+                content: [.text(textPrompt)],
+                role: .user
+            )
+    
+    // Optionally use inference parameters
+    let inferenceConfig = BedrockRuntimeClientTypes.InferenceConfiguration(
+        maxTokens: 512,
+        stopSequences: ["END"],
+        temperature: 0.5,
+        topp: 0.9
+    )
+
+    // Create the ConverseInput to send to the model
+    let input = ConverseInput(inferenceConfig: inferenceConfig, messages: [message], modelId: modelId)
+    
+    // Send the ConverseInput to the model
+    let response = try await client.converse(input: input)
+
+    // Extract and return the response text.
+    if case let .message(msg) = response.output {
+        if case let .text(textResponse) = msg.content![0] {
+            return textResponse
+        } else {
+            return "No text response found in message content"
+        }
+    } else {
+        return "No message found in converse output"
+    }
+}
+
+do {
+    let reply = try await converse("Describe the purpose of a 'hello world' program in one line.")
+    print(reply)
+} catch {
+    print("An error occured: \(error)")
+}
+
+// snippet-end:[swift.example_code.bedrock-runtime.Converse_AmazonNovaText]