#5 added healthcheck

src/service/db/index.ts

@@ -43,4 +43,5 @@ export interface Storage {
     vkPostId: number
   ): Promise<Post | undefined>;
   findPostByEvent(eventId: number): Promise<Post | undefined>;
+  healthcheck(): Promise<void>;
 }

src/service/db/postgres/index.ts

@@ -127,4 +127,8 @@ export class PostgresDB implements Storage {
   createPost = async (eventId: number, text: string, vkPostId: number) => {
     return this.posts.save({ eventId, text, vkPostId });
   };
+
+  healthcheck = async () => {
+    await this.connection.query("SELECT 1");
+  };
 }

src/service/telegram/index.ts

@@ -96,11 +96,22 @@ export class TelegramService {
     });
   };
 
-  stop = (signal: string) => {
+  /**
+   * Stops service
+   * @param signal
+   */
+  public stop = (signal: string) => {
     if (!this.isWebhookEnabled) {
       return;
     }
 
     this.bot.stop(signal);
   };
+
+  /**
+   * Performs healthcheck for telegram
+   */
+  public healthcheck = async () => {
+    await this.bot.telegram.getMe();
+  };
 }

src/service/vk/index.ts

@@ -133,4 +133,11 @@ export class VkService {
       )
     );
   }
+
+  /**
+   * Performs healthcheck for telegram
+   */
+  public healthcheck = async () => {
+    await this.db.healthcheck();
+  };
 }