Minor update.

* Added the google maps api key. #49
* Added timestamp to post response. #48

application.yml

@@ -14,3 +14,5 @@ spring:
 springdoc:
   api-docs.path: /docs
   swagger-ui.path: /docs/swagger
+
+googlemaps.apikey: <google-maps-api-key>

src/main/java/studentscroll/api/maps/MapsRestController.java

@@ -0,0 +1,30 @@
+package studentscroll.api.maps;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.security.SecurityRequirement;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import studentscroll.api.maps.dto.APIKeyResponse;
+
+@Tag(name = "Maps")
+@SecurityRequirement(name = "token")
+@RestController
+@RequestMapping("/maps")
+public class MapsRestController {
+
+  @Value("${googlemaps.apikey}")
+  private String apiKey;
+
+  @Operation(summary = "Retrieve the Google Maps API key.")
+  @ApiResponse(responseCode = "200", description = "Returning the API key.")
+  @GetMapping
+  public APIKeyResponse read() {
+    return new APIKeyResponse(apiKey);
+  }
+
+}

src/main/java/studentscroll/api/maps/dto/APIKeyResponse.java

@@ -0,0 +1,10 @@
+package studentscroll.api.maps.dto;
+
+import lombok.Data;
+
+@Data
+public class APIKeyResponse {
+
+  private final String apiKey;
+
+}

src/main/java/studentscroll/api/posts/web/dto/PostResponse.java

@@ -25,6 +25,9 @@ public class PostResponse {
   @NonNull
   private final String[] tags;
 
+  @NonNull
+  private final LocalDateTime timestamp;
+
   // event posts
 
   private final String description;
@@ -42,6 +45,7 @@ public PostResponse(Post post) {
     this.posterId = post.getPoster().getId();
     this.title = post.getTitle();
     this.tags = post.getTags().toArray(new String[] {});
+    this.timestamp = post.getTimestamp();
 
     if (post instanceof EventPost) {
       EventPost eventPost = (EventPost) post;

src/main/java/studentscroll/api/security/SecurityConfiguration.java

@@ -85,6 +85,7 @@ public SecurityFilterChain filterChain(HttpSecurity security) throws Exception {
             .requestMatchers("/chats/{chatId}", "/chats/{chatId}/messages").access(isParticipantAuthz)
             .requestMatchers(HttpMethod.GET, "/chats/{chatId}/messages/{messageId}").access(isParticipantAuthz)
             .requestMatchers("/chats/{chatId}/messages/{messageId}").access(isSenderAuthz))
+        .authorizeHttpRequests(authz -> authz.requestMatchers(HttpMethod.GET, "/maps").authenticated())
         .authorizeHttpRequests(authz -> authz.anyRequest().denyAll())
         .authenticationProvider(authenticationProvider())
         .addFilterBefore(jwtFilter(), UsernamePasswordAuthenticationFilter.class)