Added sample code endpoint

Author: CharlesDuboisSAP

sample-code/spring-app/pom.xml

@@ -57,6 +57,10 @@
       <groupId>com.sap.ai.sdk</groupId>
       <artifactId>orchestration</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.sap.ai.sdk</groupId>
+      <artifactId>prompt-registry</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.sap.cloud.sdk.cloudplatform</groupId>
       <artifactId>cloudplatform-core</artifactId>

sample-code/spring-app/src/main/java/com/sap/ai/sdk/app/controllers/PromptRegistryController.java

@@ -0,0 +1,20 @@
+package com.sap.ai.sdk.app.controllers;
+
+import com.sap.ai.sdk.prompt.registry.client.DefaultApi;
+import com.sap.ai.sdk.prompt.registry.model.PromptTemplateListResponse;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/** Endpoint for Prompt Registry operations */
+@SuppressWarnings("unused") // debug class that doesn't need to be tested
+@RestController
+@RequestMapping("/prompt-registry")
+class PromptRegistryController {
+  private static final DefaultApi client = new DefaultApi();
+
+  @GetMapping("/listTemplates")
+  public PromptTemplateListResponse listTemplates() {
+    return client.listPromptTemplates();
+  }
+}

sample-code/spring-app/src/main/resources/static/index.html

@@ -568,6 +568,34 @@ <h5 class="mb-1">Orchestration Integration</h5>
                     </div>
                 </div>
             </div>
+
+            <div class="col-xl-4 max-width-container">
+                <div class="card endpoint-card">
+                    <div class="card-header">
+                        <h2>📚 Prompt Registry</h2>
+                        Manage the life cycle of your prompts, from design to runtime.
+                        Can be used in combination with Orchestration.
+                        For more information, check the <a
+                            href="https://help.sap.com/docs/sap-ai-core/sap-ai-core-service-guide/prompt-registry"
+                            target="_blank">Prompt Registry documentation</a>.
+                    </div>
+                    <div class="card-body">
+                        <ul class="list-group">
+                            <li class="list-group-item">
+                                <div class="info-tooltip">
+                                    <button type="submit" formaction="/prompt-registry/listTemplates"
+                                            class="link-offset-2-hover link-underline link-underline-opacity-0 link-underline-opacity-75-hover endpoint">
+                                        <code>/prompt-registry/listTemplates</code>
+                                    </button>
+                                    <div class="tooltip-content">
+                                        List of all templates
+                                    </div>
+                                </div>
+                            </li>
+                        </ul>
+                    </div>
+                </div>
+            </div>
         </div>
     </div>