Add optional client injection to BedrockRuntimeService

Author: Dennis Traub

php/example_code/bedrock-runtime/BedrockRuntimeService.php

@@ -11,12 +11,21 @@
 
 class BedrockRuntimeService extends AWSServiceClass
 {
-    public function __construct()
+    public function __construct(BedrockRuntimeClient $client = null)
     {
-        $this->bedrockRuntimeClient = new BedrockRuntimeClient([
-            'region' => 'us-east-1',
-            'profile' => 'default'
-        ]);
+        if ($client) {
+            $this->bedrockRuntimeClient = $client;
+        } else {
+            $this->bedrockRuntimeClient = new BedrockRuntimeClient([
+                'region' => 'us-east-1',
+                'profile' => 'default'
+            ]);
+        }
+    }
+
+    public function getClient(): BedrockRuntimeClient
+    {
+        return $this->bedrockRuntimeClient;
     }
 
     // snippet-start:[php.example_code.bedrock-runtime.service.invokeClaude]
@@ -29,7 +38,7 @@ public function invokeClaude($prompt)
         $completion = "";
         try {
             $modelId = 'anthropic.claude-v2';
-            // Claude requires you to enclose the prompt as follows:
+        // Claude requires you to enclose the prompt as follows:
             $prompt = "\n\nHuman: {$prompt}\n\nAssistant:";
             $body = [
                 'prompt' => $prompt,

php/example_code/bedrock-runtime/README.md

@@ -44,23 +44,23 @@ functions within the same service.
 
 ### AI21 Labs Jurassic-2
 
-- [InvokeModel](BedrockRuntimeService.php#L55)
+- [InvokeModel](BedrockRuntimeService.php#L64)
 
 ### Amazon Titan Image Generator
 
-- [InvokeModel](BedrockRuntimeService.php#L152)
+- [InvokeModel](BedrockRuntimeService.php#L161)
 
 ### Anthropic Claude
 
-- [InvokeModel](BedrockRuntimeService.php#L22)
+- [InvokeModel](BedrockRuntimeService.php#L31)
 
 ### Meta Llama
 
-- [InvokeModel: Llama 2](BedrockRuntimeService.php#L85)
+- [InvokeModel: Llama 2](BedrockRuntimeService.php#L94)
 
 ### Stable Diffusion
 
-- [InvokeModel](BedrockRuntimeService.php#L115)
+- [InvokeModel](BedrockRuntimeService.php#L124)
 
 
 <!--custom.examples.start-->

php/example_code/bedrock-runtime/composer.json

@@ -1,7 +1,7 @@
 {
     "require": {
-        "aws/aws-sdk-php": "^3.321",
-        "guzzlehttp/guzzle": "^7.8"
+        "aws/aws-sdk-php": "^3.324.10",
+        "guzzlehttp/guzzle": "^7.9.2"
     },
     "autoload": {
         "psr-0": {

php/example_code/bedrock-runtime/composer.lock

@@ -8,6 +8,7 @@
 
 namespace bedrockruntime\tests;
 
+use Aws\BedrockRuntime\BedrockRuntimeClient;
 use BedrockRuntime\BedrockRuntimeService;
 use PHPUnit\Framework\TestCase;
 
@@ -23,6 +24,23 @@ public function setup(): void
         $this->bedrockRuntimeService = new BedrockRuntimeService();
     }
 
+    public function test_default_constructor_creates_client()
+    {
+        $service = new BedrockRuntimeService();
+        self::assertNotNull($service->getClient());
+        self::assertEquals('us-east-1', $service->getClient()->getRegion());
+    }
+
+    public function test_constructor_uses_injected_client()
+    {
+        $client = new BedrockRuntimeClient([
+            'region' => 'us-west-2'
+        ]);
+        $service = new BedrockRuntimeService($client);
+        self::assertNotNull($service->getClient());
+        self::assertEquals($client, $service->getClient());
+    }
+
     public function test_claude_can_be_invoked()
     {
         $completion = $this->bedrockRuntimeService->invokeClaude($this->prompt);