Finishing Task 12

Author: jabrena

examples/spring-boot-demo/implementation/src/main/java/info/jab/ms/config/OpenApiConfig.java

@@ -0,0 +1,88 @@
+package info.jab.ms.config;
+
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.info.Contact;
+import io.swagger.v3.oas.models.info.Info;
+import io.swagger.v3.oas.models.info.License;
+import io.swagger.v3.oas.models.servers.Server;
+import io.swagger.v3.oas.models.tags.Tag;
+import java.util.List;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * OpenAPI Configuration for Film Query Service
+ *
+ * Task 12.1: Complete OpenAPI documentation with proper descriptions ✅
+ *
+ * This configuration provides comprehensive API documentation including:
+ * - API information, version, and description
+ * - Contact information and license
+ * - Server configurations for different environments
+ * - Global tags and enhanced documentation structure
+ */
+@Configuration
+public class OpenApiConfig {
+
+    @Bean
+    public OpenAPI filmQueryOpenAPI() {
+        return new OpenAPI()
+                .info(new Info()
+                        .title("Film Query API")
+                        .description("""
+                                ## Sakila Film Database Query Service
+
+                                This REST API provides access to film information from the PostgreSQL Sakila sample database.
+                                The service allows querying films by their starting letter with high performance guarantees.
+
+                                ### Key Features
+                                - **Case-insensitive search**: Query films starting with any letter (A-Z)
+                                - **High performance**: Guaranteed response time under 2 seconds
+                                - **Comprehensive validation**: Input parameter validation with detailed error responses
+                                - **RFC 7807 compliance**: Standardized error response format
+
+                                ### Expected Results
+                                The API returns accurate counts based on the Sakila database:
+                                - Films starting with "A": 46 films
+                                - Films starting with "B": 37 films
+                                - Films starting with "C": 57 films
+
+                                ### Performance Guarantees
+                                - Query execution time: < 2 seconds
+                                - Database connection timeout: 30 seconds
+                                - Maximum response payload: Optimized for all result sets
+
+                                ### Error Handling
+                                All errors follow RFC 7807 Problem Details standard with:
+                                - Structured error responses
+                                - Unique error identifiers
+                                - Detailed error descriptions
+                                - HTTP status code compliance
+                                """)
+                        .version("1.0.0")
+                        .contact(new Contact()
+                                .name("Film Query API Team")
+                                .email("api-support@example.com")
+                                .url("https://github.com/your-org/film-query-service"))
+                        .license(new License()
+                                .name("MIT License")
+                                .url("https://opensource.org/licenses/MIT")))
+                .servers(List.of(
+                        new Server()
+                                .url("http://localhost:8080")
+                                .description("Local development server"),
+                        new Server()
+                                .url("https://api-staging.example.com")
+                                .description("Staging environment"),
+                        new Server()
+                                .url("https://api.example.com")
+                                .description("Production environment")))
+                .tags(List.of(
+                        new Tag()
+                                .name("Films")
+                                .description("Film query operations for retrieving films from the Sakila database by starting letter"),
+                        new Tag()
+                                .name("Health")
+                                .description("Service health and monitoring endpoints")));
+    }
+}