Releases · Yoctol/bottender

The whole codebase has been fully rewritten with TypeScript.
The repository becomes a lerna monorepo.
[new] A brand-new project creator - create-bottender-app. You can use following command to create your new bot:

npx create-bottender-app my-app

[new] Implement new runner and bottender start cli. It finds index.js entry and bottender.config.js config file then executes accordingly:

bottender start

To enable console mode:

bottender start --console

[new] Add new development mode via bottender dev cli:

bottender dev
bottender dev --console

The bot server will be restarted after changing the files.

[new] Add several recommended ways to organize chatbot dialogs and features:

Action:

async function SayHi(context) {
  await context.sendText('hi');
}

Pass Props to Action:

const { withProps } = require('bottender');

async function SayHi(context, { name }) {
  await context.sendText(`hi! ${name}.`);
}

async function App() {
  return withProps(SayHi, { name: 'John' });
}

Router:

const { router, text } = require('bottender/router');

async function SayHi(context) {
  await context.sendText('Hi!');
}

async function SayHello(context) {
  await context.sendText('Hello!');
}

async function App() {
  return router([
    text('hi', SayHi), // return SayHi when receiving hi text message
    text('hello', SayHello), // return SayHello when receiving hello text message
  ]);
}

Chain:

const { chain } = require('bottender');

function RuleBased(context, props) {
  if (context.event.text === 'hi') {
    // discontinue and return SayHi
    return SayHi;
  }
  // continue to next
  return props.next;
}

function MachineLearningBased(context, props) {
  /* ...skip */
}

function HumanAgent(context, props) {
  /* ...skip */
}

function App() {
  return chain([
    // will execute in following order
    RuleBased,
    MachineLearningBased,
    HumanAgent,
  ]);
}

[new] Add _error.js entry support for error handling:

// _error.js
module.exports = async function HandleError(context, props) {
  await context.sendText(
    'There are some unexpected errors happened. Please try again later, sorry for the inconvenience.'
  );
  console.error(props.error);
  if (process.env.NODE_ENV === 'production') {
    // send your error to the error tracker, for example: Sentry
  }
  if (process.env.NODE_ENV === 'development') {
    await context.sendText(props.error.stack);
  }
};

[new] Add better custom server support
[breaking] middleware and Handlers has been moved to @bottender/handlers package. You can install it from registry:

npm install @bottender/handlers

// or using yarn:
yarn add @bottender/handlers

And import them like this:

const {
  middleware,
  Handler,
  MessengerHandler,
  LineHandler,
  SlackHandler,
  TelegramHandler,
  ViberHandler,
} = require('@bottender/handlers');

[breaking] transform all context method parameters to camelcase:

Messenger -

context.sendGenericTemplate([
  {
    title: "Welcome to Peter's Hats",
    imageUrl: 'https://petersfancybrownhats.com/company_image.png',
    subtitle: "We've got the right hat for everyone.",
    defaultAction: {
      type: 'web_url',
      url: 'https://peterssendreceiveapp.ngrok.io/view?item=103',
      messengerExtensions: true,
      webviewHeightRatio: 'tall',
      fallbackUrl: 'https://peterssendreceiveapp.ngrok.io/',
    },
    buttons: [
      {
        type: 'postback',
        title: 'Start Chatting',
        payload: 'DEVELOPER_DEFINED_PAYLOAD',
      },
    ],
  },
]);

Slack -

context.postMessage({
  blocks: [
    {
      type: 'section',
      text: {
        type: 'plain_text',
        text: 'You updated the modal!',
      },
    },
    {
      type: 'image',
      imageUrl: 'https://media.giphy.com/media/SVZGEcYt7brkFUyU90/giphy.gif',
      altText: 'Yay! The modal was updated',
    },
  ],
});

Telegram -

context.sendMessage('hi', {
  disableWebPagePreview: true,
  disableNotification: true,
});

Viber -

context.sendFile({
  media: 'http://www.images.com/file.doc',
  size: 10000,
  fileName: 'name_of_file.doc',
});

[breaking] transform all event attributes to camelcase:

context.event.rawEvent; // all keys is camelcase in this object

[breaking] rename skipProfile to skipLegacyProfile, and set to true by default
[breaking] unify requestContext (#541)
[deps] update messaging-apis to v1
[examples] Rewrite all examples for Bottender v1
[docs] A brand-new website with new docs - https://bottender.js.org?new

messenger

[new] add pageId config to automatically add subscribe app in bottender messenger webhook set.
[removed] get-started, greeting, persistent-menu, whitelisted-domains cli subcommands has been removed. Use profile instead:

bottender messenger profile get
bottender messenger profile set
bottender messenger profile delete

[removed] Remove deprecated context.sendAirlineFlightUpdateTemplate().

line

[new] Implement context.getMessageContent(). You can use it to get received media content:

async function App(context) {
  if (context.event.isImage || context.event.isVideo || context.event.isAudio) {
    const buffer = await context.getMessageContent();
  }
}

[new] LineBot: Set sendMethod to reply and shouldBatch to true by default.
[removed] legacy menu cli subcommand has been removed.

slack

[new] add block kits support:

context.postMessage({
  blocks: [
    {
      type: 'section',
      text: {
        type: 'plain_text',
        text: 'You updated the modal!',
      },
    },
    {
      type: 'image',
      imageUrl: 'https://media.giphy.com/media/SVZGEcYt7brkFUyU90/giphy.gif',
      altText: 'Yay! The modal was updated',
    },
  ],
});

[fix] use token in payload when received a JSON string payload.

[new] implement context.sendAnimation():

context.sendAnimation('xxx.mp4');

[new] implement context.sendPoll()

const options = ['a', 'b'];

context.sendPoll(question, options);

[breaking] add messageId to args for all function need messageId:

context.editMessageText('<MESSAGE_ID>', text);
context.editMessageCaption('<MESSAGE_ID>', caption);
context.editMessageReplyMarkup('<MESSAGE_ID>', replyMarkup);
context.editMessageLiveLocation('<MESSAGE_ID>', location);
context.stopMessageLiveLocation('<MESSAGE_ID>');

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Releases: Yoctol/bottender

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