added http and telegram api services

src/api/telegram/index.ts

@@ -0,0 +1,20 @@
+import { TelegramService } from "../../service/telegram";
+import logger from "../../service/logger";
+
+export class TelegramApi {
+  constructor(private telegram: TelegramService) {}
+
+  public listen() {
+    this.telegram.bot.command("ping", TelegramApi.ping);
+    return;
+  }
+
+  /**
+   * Handles ping command
+   */
+  private static ping(ctx) {
+    return ctx.replyWithSticker(
+      "CAACAgIAAxkBAAIB6F82KSeJBEFer895bb7mFI7_GzYoAAISAAOwODIrOXeFNb5v4aEaBA"
+    );
+  }
+}