feat(wip): rework listener decorators

lib/decorators/action.decorator.ts

@@ -1,19 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-import { HearsTriggers } from 'telegraf/typings/composer';
-import { Context } from '../interfaces';
-
-export type TelegrafActionTriggers = HearsTriggers<Context>;
-
-export interface ActionOptions {
-  triggers: TelegrafActionTriggers;
-}
-
-/**
- * Registers middleware for handling callback_data actions with regular expressions.
- *
- * @see https://telegraf.js.org/#/?id=action
- */
-export const Action = (triggers: TelegrafActionTriggers): MethodDecorator => {
-  return SetMetadata(DECORATORS.ACTION, { triggers });
-};

lib/decorators/cashtag.decorator.ts

@@ -1,17 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-export type TelegrafCashtagCashtag = string | string[];
-
-export interface CashtagOptions {
-  cashtag: TelegrafCashtagCashtag;
-}
-
-/**
- * Cashtag handling.
- *
- * @see https://telegraf.js.org/#/?id=cashtag
- */
-export const Cashtag = (cashtag: TelegrafCashtagCashtag): MethodDecorator => {
-  return SetMetadata(DECORATORS.CASHTAG, { cashtag });
-};

lib/decorators/command.decorator.ts

@@ -1,17 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-export type TelegrafCommandCommands = string | string[];
-
-export interface CommandOptions {
-  commands: TelegrafCommandCommands;
-}
-
-/**
- * Command handling.
- *
- * @see https://telegraf.js.org/#/?id=command
- */
-export const Command = (commands: TelegrafCommandCommands): MethodDecorator => {
-  return SetMetadata(DECORATORS.COMMAND, { commands });
-};

lib/decorators/core/update.decorator.ts

@@ -1,8 +1,8 @@
 import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
+import { TELEGRAF_UPDATE } from '../../telegraf.constants';
 
 /**
  * `@Update` decorator, it's like NestJS `@Controller` decorator,
  * but for Telegram Bot API updates.
  */
-export const Update = (): ClassDecorator => SetMetadata(DECORATORS.UPDATE, {});
+export const Update = (): ClassDecorator => SetMetadata(TELEGRAF_UPDATE, true);

lib/decorators/entity.decorator.ts

@@ -1,22 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-export type TelegrafEntityEntity =
-  | string
-  | string[]
-  | RegExp
-  | RegExp[]
-  | Function;
-
-export interface EntityOptions {
-  entity: TelegrafEntityEntity;
-}
-
-/**
- * Entity handling.
- *
- * @see https://telegraf.js.org/#/?id=entity
- */
-export const Entity = (entity: TelegrafEntityEntity): MethodDecorator => {
-  return SetMetadata(DECORATORS.ENTITY, { entity });
-};

lib/decorators/hashtag.decorator.ts

@@ -1,17 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-export type TelegrafHashtagHashtag = string | string[];
-
-export interface HashtagOptions {
-  hashtag: TelegrafHashtagHashtag;
-}
-
-/**
- * Hashtag handling.
- *
- * @see https://telegraf.js.org/#/?id=hashtag
- */
-export const Hashtag = (hashtag: TelegrafHashtagHashtag): MethodDecorator => {
-  return SetMetadata(DECORATORS.HASHTAG, { hashtag });
-};

lib/decorators/hears.decorator.ts

@@ -1,19 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-import { HearsTriggers } from 'telegraf/typings/composer';
-import { Context } from '../interfaces';
-
-export type TelegrafHearsTriggers = HearsTriggers<Context>;
-
-export interface HearsOptions {
-  triggers: TelegrafHearsTriggers;
-}
-
-/**
- * Registers middleware for handling text messages.
- *
- * @see https://telegraf.js.org/#/?id=hears
- */
-export const Hears = (triggers: TelegrafHearsTriggers): MethodDecorator => {
-  return SetMetadata(DECORATORS.HEARS, { triggers: triggers });
-};

lib/decorators/help.decorator.ts

@@ -1,11 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-/**
- * Handler for /help command.
- *
- * @see https://telegraf.js.org/#/?id=help
- */
-export const Help = (): MethodDecorator => {
-  return SetMetadata(DECORATORS.HELP, {});
-};

lib/decorators/inline-query.decorator.ts

@@ -1,28 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-import * as tt from 'telegraf/typings/telegram-types';
-
-export type TelegrafInlineQueryTriggers = string | string[] | RegExp | RegExp[];
-
-export interface InlineQueryOptions {
-  triggers?: TelegrafInlineQueryTriggers;
-  updateType:
-    | tt.UpdateType
-    | tt.UpdateType[]
-    | tt.MessageSubTypes
-    | tt.MessageSubTypes[];
-}
-
-/**
- * Registers middleware for handling inline_query actions with regular expressions.
- *
- * @see https://telegraf.js.org/#/?id=inlinequery
- */
-export const InlineQuery = (
-  triggers?: TelegrafInlineQueryTriggers,
-): MethodDecorator => {
-  return SetMetadata(DECORATORS.INLINE_QUERY, {
-    triggers,
-    updateType: 'inline_query',
-  });
-};

lib/decorators/listeners/action.decorator.ts

@@ -0,0 +1,25 @@
+import { applyDecorators, SetMetadata } from '@nestjs/common';
+import {
+  TELEGRAF_LISTENER_OPTIONS,
+  TELEGRAF_LISTENER_TYPE,
+} from '../../telegraf.constants';
+import { TelegrafActionTriggers } from '../../telegraf.types';
+import { ListenerType } from '../../enums/listener-type.enum';
+
+export interface ActionOptions {
+  triggers: TelegrafActionTriggers;
+}
+
+/**
+ * Registers middleware for handling callback_data actions with regular expressions.
+ *
+ * @see https://telegraf.js.org/#/?id=action
+ */
+export const Action = (triggers: TelegrafActionTriggers): MethodDecorator => {
+  return applyDecorators(
+    SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Action),
+    SetMetadata(TELEGRAF_LISTENER_OPTIONS, {
+      triggers,
+    } as ActionOptions),
+  );
+};

lib/decorators/listeners/cashtag.decorator.ts

@@ -0,0 +1,25 @@
+import { applyDecorators, SetMetadata } from '@nestjs/common';
+import {
+  TELEGRAF_LISTENER_OPTIONS,
+  TELEGRAF_LISTENER_TYPE,
+} from '../../telegraf.constants';
+import { TelegrafCashtag } from '../../telegraf.types';
+import { ListenerType } from '../../enums/listener-type.enum';
+
+export interface CashtagOptions {
+  cashtag: TelegrafCashtag;
+}
+
+/**
+ * Cashtag handling.
+ *
+ * @see https://telegraf.js.org/#/?id=cashtag
+ */
+export const Cashtag = (cashtag: TelegrafCashtag): MethodDecorator => {
+  return applyDecorators(
+    SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Cashtag),
+    SetMetadata(TELEGRAF_LISTENER_OPTIONS, {
+      cashtag,
+    } as CashtagOptions),
+  );
+};

lib/decorators/listeners/command.decorator.ts

@@ -0,0 +1,25 @@
+import { applyDecorators, SetMetadata } from '@nestjs/common';
+import {
+  TELEGRAF_LISTENER_OPTIONS,
+  TELEGRAF_LISTENER_TYPE,
+} from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+import { TelegrafCommand } from '../../telegraf.types';
+
+export interface CommandOptions {
+  commands: TelegrafCommand;
+}
+
+/**
+ * Command handling.
+ *
+ * @see https://telegraf.js.org/#/?id=command
+ */
+export const Command = (commands: TelegrafCommand): MethodDecorator => {
+  return applyDecorators(
+    SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Command),
+    SetMetadata(TELEGRAF_LISTENER_OPTIONS, {
+      commands,
+    } as CommandOptions),
+  );
+};

lib/decorators/listeners/game-query.decorator.ts

@@ -1,5 +1,6 @@
 import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
+import { TELEGRAF_LISTENER_TYPE } from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
 
 /**
  * Registers middleware for handling callback_data actions with game query.
@@ -7,5 +8,5 @@ import { DECORATORS } from '../telegraf.constants';
  * @see https://telegraf.js.org/#/?id=inlinequery
  */
 export const GameQuery = (): MethodDecorator => {
-  return SetMetadata(DECORATORS.GAME_QUERY, {});
+  return SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.GameQuery);
 };

lib/decorators/listeners/hashtag.decorator.ts

@@ -0,0 +1,25 @@
+import { applyDecorators, SetMetadata } from '@nestjs/common';
+import {
+  TELEGRAF_LISTENER_OPTIONS,
+  TELEGRAF_LISTENER_TYPE,
+} from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+import { TelegrafHashtag } from '../../telegraf.types';
+
+export interface HashtagOptions {
+  hashtag: TelegrafHashtag;
+}
+
+/**
+ * Hashtag handling.
+ *
+ * @see https://telegraf.js.org/#/?id=hashtag
+ */
+export const Hashtag = (hashtag: TelegrafHashtag): MethodDecorator => {
+  return applyDecorators(
+    SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Hashtag),
+    SetMetadata(TELEGRAF_LISTENER_OPTIONS, {
+      hashtag,
+    } as HashtagOptions),
+  );
+};

lib/decorators/listeners/hears.decorator.ts

@@ -0,0 +1,25 @@
+import { applyDecorators, SetMetadata } from '@nestjs/common';
+import {
+  TELEGRAF_LISTENER_OPTIONS,
+  TELEGRAF_LISTENER_TYPE,
+} from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+import { TelegrafHearsTriggers } from '../../telegraf.types';
+
+export interface HearsOptions {
+  triggers: TelegrafHearsTriggers;
+}
+
+/**
+ * Registers middleware for handling text messages.
+ *
+ * @see https://telegraf.js.org/#/?id=hears
+ */
+export const Hears = (triggers: TelegrafHearsTriggers): MethodDecorator => {
+  return applyDecorators(
+    SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Hears),
+    SetMetadata(TELEGRAF_LISTENER_OPTIONS, {
+      triggers,
+    } as HearsOptions),
+  );
+};

lib/decorators/listeners/help.decorator.ts

@@ -0,0 +1,12 @@
+import { SetMetadata } from '@nestjs/common';
+import { TELEGRAF_LISTENER_TYPE } from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+
+/**
+ * Handler for /help command.
+ *
+ * @see https://telegraf.js.org/#/?id=help
+ */
+export const Help = (): MethodDecorator => {
+  return SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Help);
+};

lib/decorators/listeners/inline-query.decorator.ts

@@ -0,0 +1,27 @@
+import { applyDecorators, SetMetadata } from '@nestjs/common';
+import {
+  TELEGRAF_LISTENER_OPTIONS,
+  TELEGRAF_LISTENER_TYPE,
+} from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+import { TelegrafInlineQueryTriggers } from '../../telegraf.types';
+
+export interface InlineQueryOptions {
+  triggers: TelegrafInlineQueryTriggers;
+}
+
+/**
+ * Registers middleware for handling inline_query actions with regular expressions.
+ *
+ * @see https://telegraf.js.org/#/?id=inlinequery
+ */
+export const InlineQuery = (
+  triggers: TelegrafInlineQueryTriggers,
+): MethodDecorator => {
+  return applyDecorators(
+    SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.InlineQuery),
+    SetMetadata(TELEGRAF_LISTENER_OPTIONS, {
+      triggers,
+    } as InlineQueryOptions),
+  );
+};

lib/decorators/listeners/mention.decorator.ts

@@ -0,0 +1,25 @@
+import { applyDecorators, SetMetadata } from '@nestjs/common';
+import {
+  TELEGRAF_LISTENER_OPTIONS,
+  TELEGRAF_LISTENER_TYPE,
+} from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+import { TelegrafMention } from '../../telegraf.types';
+
+export interface MentionOptions {
+  mention: TelegrafMention;
+}
+
+/**
+ * Mention handling.
+ *
+ * @see https://telegraf.js.org/#/?id=mention
+ */
+export const Mention = (mention: TelegrafMention): MethodDecorator => {
+  return applyDecorators(
+    SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Mention),
+    SetMetadata(TELEGRAF_LISTENER_OPTIONS, {
+      mention,
+    } as MentionOptions),
+  );
+};

lib/decorators/listeners/on.decorator.ts

@@ -0,0 +1,25 @@
+import { applyDecorators, SetMetadata } from '@nestjs/common';
+import {
+  TELEGRAF_LISTENER_OPTIONS,
+  TELEGRAF_LISTENER_TYPE,
+} from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+import { TelegrafUpdateType } from '../../telegraf.types';
+
+export interface OnOptions {
+  updateTypes: TelegrafUpdateType;
+}
+
+/**
+ * Registers middleware for provided update type.
+ *
+ * @see https://telegraf.js.org/#/?id=on
+ */
+export const On = (updateTypes: TelegrafUpdateType): MethodDecorator => {
+  return applyDecorators(
+    SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.On),
+    SetMetadata(TELEGRAF_LISTENER_OPTIONS, {
+      updateTypes,
+    } as OnOptions),
+  );
+};

lib/decorators/listeners/phone.decorator.ts

@@ -0,0 +1,25 @@
+import { applyDecorators, SetMetadata } from '@nestjs/common';
+import {
+  TELEGRAF_LISTENER_OPTIONS,
+  TELEGRAF_LISTENER_TYPE,
+} from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+import { TelegrafPhone } from '../../telegraf.types';
+
+export interface PhoneOptions {
+  phone: TelegrafPhone;
+}
+
+/**
+ * Phone number handling.
+ *
+ * @see https://telegraf.js.org/#/?id=phone
+ */
+export const Phone = (phone: TelegrafPhone): MethodDecorator => {
+  return applyDecorators(
+    SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Phone),
+    SetMetadata(TELEGRAF_LISTENER_OPTIONS, {
+      phone,
+    } as PhoneOptions),
+  );
+};

lib/decorators/listeners/settings.decorator.ts

@@ -0,0 +1,12 @@
+import { SetMetadata } from '@nestjs/common';
+import { TELEGRAF_LISTENER_TYPE } from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+
+/**
+ * Handler for /settings command.
+ *
+ * @see https://telegraf.js.org/#/?id=settings
+ */
+export const Settings = (): MethodDecorator => {
+  return SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Settings);
+};

lib/decorators/listeners/start.decorator.ts

@@ -0,0 +1,12 @@
+import { SetMetadata } from '@nestjs/common';
+import { TELEGRAF_LISTENER_TYPE } from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+
+/**
+ * Handler for /start command.
+ *
+ * @see https://telegraf.js.org/#/?id=start
+ */
+export const Start = (): MethodDecorator => {
+  return SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Start);
+};

lib/decorators/listeners/use.decorator.ts

@@ -0,0 +1,12 @@
+import { SetMetadata } from '@nestjs/common';
+import { TELEGRAF_LISTENER_TYPE } from '../../telegraf.constants';
+import { ListenerType } from '../../enums/listener-type.enum';
+
+/**
+ * Registers a middleware.
+ *
+ * @see https://telegraf.js.org/#/?id=use
+ */
+export const Use = (): MethodDecorator => {
+  return SetMetadata(TELEGRAF_LISTENER_TYPE, ListenerType.Use);
+};

lib/decorators/mention.decorator.ts

@@ -1,17 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-export type TelegrafMentionUsername = string | string[];
-
-export interface MentionOptions {
-  username: TelegrafMentionUsername;
-}
-
-/**
- * Mention handling.
- *
- * @see https://telegraf.js.org/#/?id=mention
- */
-export const Mention = (username: TelegrafMentionUsername): MethodDecorator => {
-  return SetMetadata(DECORATORS.MENTION, { username });
-};

lib/decorators/on.decorator.ts

@@ -1,22 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-import { UpdateType, MessageSubTypes } from 'telegraf/typings/telegram-types';
-
-export type TelegrafOnUpdateTypes =
-  | UpdateType
-  | UpdateType[]
-  | MessageSubTypes
-  | MessageSubTypes[];
-
-export interface OnOptions {
-  updateTypes: TelegrafOnUpdateTypes;
-}
-
-/**
- * Registers middleware for provided update type.
- *
- * @see https://telegraf.js.org/#/?id=on
- */
-export const On = (updateTypes: TelegrafOnUpdateTypes): MethodDecorator => {
-  return SetMetadata(DECORATORS.ON, { updateTypes: updateTypes });
-};

lib/decorators/phone.decorator.ts

@@ -1,17 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-export type TelegrafPhonePhone = string | string[];
-
-export interface PhoneOptions {
-  phone: TelegrafPhonePhone;
-}
-
-/**
- * Phone number handling.
- *
- * @see https://telegraf.js.org/#/?id=phone
- */
-export const Phone = (phone: TelegrafPhonePhone): MethodDecorator => {
-  return SetMetadata(DECORATORS.PHONE, { phone });
-};

lib/decorators/settings.decorator.ts

@@ -1,11 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-/**
- * Handler for /settings command.
- *
- * @see https://telegraf.js.org/#/?id=settings
- */
-export const Settings = (): MethodDecorator => {
-  return SetMetadata(DECORATORS.SETTINGS, {});
-};

lib/decorators/start.decorator.ts

@@ -1,11 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-/**
- * Handler for /start command.
- *
- * @see https://telegraf.js.org/#/?id=start
- */
-export const Start = (): MethodDecorator => {
-  return SetMetadata(DECORATORS.START, {});
-};

lib/decorators/use.decorator.ts

@@ -1,11 +0,0 @@
-import { SetMetadata } from '@nestjs/common';
-import { DECORATORS } from '../telegraf.constants';
-
-/**
- * Registers a middleware.
- *
- * @see https://telegraf.js.org/#/?id=use
- */
-export const Use = (): MethodDecorator => {
-  return SetMetadata(DECORATORS.USE, {});
-};

lib/enums/listener-type.enum.ts

@@ -0,0 +1,16 @@
+export enum ListenerType {
+  Use = 'use',
+  On = 'on',
+  Hears = 'hears',
+  Command = 'command',
+  Start = 'start',
+  Help = 'help',
+  Settings = 'settings',
+  Mention = 'mention',
+  Phone = 'phone',
+  Hashtag = 'hashtag',
+  Cashtag = 'cashtag',
+  Action = 'action',
+  InlineQuery = 'inlineQuery',
+  GameQuery = 'gameQuery',
+}

lib/telegraf.constants.ts

@@ -1,23 +1,6 @@
 export const TELEGRAF_MODULE_OPTIONS = 'TELEGRAF_MODULE_OPTIONS';
 export const TELEGRAF_PROVIDER = 'TelegrafProvider';
 
-export const DECORATORS_PREFIX = 'TELEGRAF';
+export const TELEGRAF_UPDATE = 'TELEGRAF_UPDATE';
-export const DECORATORS = {
+export const TELEGRAF_LISTENER_TYPE = 'TELEGRAF_LISTENER_TYPE';
-  USE: `${DECORATORS_PREFIX}/USE`,
+export const TELEGRAF_LISTENER_OPTIONS = 'TELEGRAF_LISTENER_OPTIONS';
-  ON: `${DECORATORS_PREFIX}/ON`,
-  HEARS: `${DECORATORS_PREFIX}/HEARS`,
-  COMMAND: `${DECORATORS_PREFIX}/COMMAND`,
-  START: `${DECORATORS_PREFIX}/START`,
-  HELP: `${DECORATORS_PREFIX}/HELP`,
-  SETTINGS: `${DECORATORS_PREFIX}/SETTINGS`,
-  ENTITY: `${DECORATORS_PREFIX}/ENTITY`,
-  MENTION: `${DECORATORS_PREFIX}/MENTION`,
-  PHONE: `${DECORATORS_PREFIX}/PHONE`,
-  HASHTAG: `${DECORATORS_PREFIX}/HASHTAG`,
-  CASHTAG: `${DECORATORS_PREFIX}/CASHTAG`,
-  ACTION: `${DECORATORS_PREFIX}/ACTION`,
-  INLINE_QUERY: `${DECORATORS_PREFIX}/INLINE_QUERY`,
-  GAME_QUERY: `${DECORATORS_PREFIX}/GAME_QUERY`,
-  UPDATE: `${DECORATORS_PREFIX}/UPDATE`,
-  UPDATE_HOOK: `${DECORATORS_PREFIX}/UPDATE_HOOK`,
-};

lib/telegraf.provider.ts

@@ -10,7 +10,8 @@ import { Context, TelegrafModuleOptions } from './interfaces';
 import { TELEGRAF_MODULE_OPTIONS } from './telegraf.constants';
 
 @Injectable()
-export class TelegrafProvider extends Telegraf<Context>
+export class TelegrafProvider<C extends Context = Context>
+  extends Telegraf<C>
   implements OnApplicationBootstrap, OnApplicationShutdown {
   private logger = new Logger('Telegraf');
   private readonly launchOptions;
@@ -20,18 +21,18 @@ export class TelegrafProvider extends Telegraf<Context>
     this.launchOptions = options.launchOptions;
   }
 
-  async onApplicationBootstrap() {
+  async onApplicationBootstrap(): Promise<void> {
-    this.catch((err, ctx: Context) => {
+    this.catch(async (err, ctx) => {
       this.logger.error(
         `Encountered an error for ${ctx.updateType} update type`,
-        err,
+        err as string,
       );
     });
 
     await this.launch(this.launchOptions);
   }
 
-  async onApplicationShutdown() {
+  async onApplicationShutdown(): Promise<void> {
     await this.stop();
   }
 }

lib/telegraf.types.ts

@@ -0,0 +1,13 @@
+import { Context, Composer } from 'telegraf';
+
+export type TelegrafActionTriggers = Parameters<Composer<Context>['action']>[0];
+export type TelegrafHearsTriggers = Parameters<Composer<Context>['hears']>[0];
+export type TelegrafInlineQueryTriggers = Parameters<
+  Composer<Context>['inlineQuery']
+>[0];
+export type TelegrafCashtag = Parameters<Composer<Context>['cashtag']>[0];
+export type TelegrafHashtag = Parameters<Composer<Context>['hashtag']>[0];
+export type TelegrafCommand = Parameters<Composer<Context>['command']>[0];
+export type TelegrafMention = Parameters<Composer<Context>['mention']>[0];
+export type TelegrafPhone = Parameters<Composer<Context>['phone']>[0];
+export type TelegrafUpdateType = Parameters<Composer<Context>['on']>[0];