REST update: return 201 CREATED for contact endpoint

Signed-off-by: vimal-tech-starter <varnam2311@gmail.com>

Author: vimal-tech-starter

src/main/java/com/vimaltech/contactapi/config/CorsConfig.java

@@ -1,5 +1,6 @@
 package com.vimaltech.contactapi.config;
 
+import org.jspecify.annotations.NonNull;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.config.annotation.CorsRegistry;
@@ -12,10 +13,10 @@ public class CorsConfig {
     public WebMvcConfigurer corsConfigurer() {
         return new WebMvcConfigurer() {
             @Override
-            public void addCorsMappings(CorsRegistry registry) {
+            public void addCorsMappings(@NonNull CorsRegistry registry) {
                 registry.addMapping("/**")
                         .allowedOrigins("https://vimaltech.dev")
-                        .allowedMethods("GET", "POST", "PUT", "DELETE")
+                        .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
                         .allowedHeaders("*");
             }
         };

src/main/java/com/vimaltech/contactapi/controller/ContactController.java

@@ -5,6 +5,7 @@
 import com.vimaltech.contactapi.service.ContactService;
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
@@ -13,7 +14,6 @@
 @RestController
 @RequestMapping("/api/v1/contact")
 @RequiredArgsConstructor
-@CrossOrigin(origins = "https://vimaltech.dev")
 public class ContactController {
 
     private final ContactService contactService;
@@ -30,6 +30,6 @@ public ResponseEntity<ApiResponse> submitContact(
                 LocalDateTime.now()
         );
 
-        return ResponseEntity.ok(response);
+        return ResponseEntity.status(HttpStatus.CREATED).body(response);
     }
 }

src/main/java/com/vimaltech/contactapi/dto/ContactRequest.java

@@ -13,6 +13,7 @@ public record ContactRequest(
         @NotBlank(message = "Email is required")
         String email,
 
+        @Size(max = 255, message = "Subject cannot exceed 255 characters")
         String subject,
 
         @NotBlank(message = "Message is required")

src/main/java/com/vimaltech/contactapi/entity/ContactInquiry.java

@@ -24,11 +24,17 @@ public class ContactInquiry {
     @Column(nullable = false)
     private String email;
 
+    @Column(length = 255)
     private String subject;
 
     @Column(nullable = false, length = 1000)
     private String message;
 
-    @Column(name = "created_at", nullable = false)
+    @Column(name = "created_at", nullable = false, updatable = false)
     private LocalDateTime createdAt;
+
+    @PrePersist
+    public void prePersist() {
+        this.createdAt = LocalDateTime.now();
+    }
 }

src/main/java/com/vimaltech/contactapi/exception/GlobalExceptionHandler.java

@@ -29,4 +29,16 @@ public ResponseEntity<ApiResponse> handleValidationException(
 
         return ResponseEntity.badRequest().body(response);
     }
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ApiResponse> handleGenericException(Exception ex) {
+
+        ApiResponse response = new ApiResponse(
+                false,
+                "Something went wrong. Please try again later.",
+                LocalDateTime.now()
+        );
+
+        return ResponseEntity.internalServerError().body(response);
+    }
 }

src/main/resources/ApiResponse.java

@@ -0,0 +1,10 @@
+package com.vimaltech.contactapi.dto;
+
+import java.time.LocalDateTime;
+
+public record ApiResponse(
+        boolean success,
+        String message,
+        LocalDateTime timestamp
+) {
+}