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messaging-api-line

Messaging API client for LINE

LINE

Table of Contents

Installation

npm i --save messaging-api-line

or

yarn add messaging-api-line

Usage

Initialize

const { LineClient } = require('messaging-api-line');

// get accessToken and channelSecret from LINE developers website
const client = new LineClient({
  accessToken: ACCESS_TOKEN,
  channelSecret: CHANNEL_SECRET,
});

Error Handling

messaging-api-line uses axios as HTTP client. We use axios-error package to wrap API error instances for better formatting error messages. Directly calling console.log with the error instance will return formatted message. If you'd like to get the axios request, response, or config, you can still get them via those keys on the error instance.

client.replyText(token, text).catch((error) => {
  console.log(error); // formatted error message
  console.log(error.stack); // error stack trace
  console.log(error.config); // axios request config
  console.log(error.request); // HTTP request
  console.log(error.response); // HTTP response
});

API Reference

All methods return a Promise.


Reply API - Official Docs

Responds to events from users, groups, and rooms.

reply(token, messages)

Responds messages using specified reply token.

Param Type Description
token String replyToken received via webhook.
messages Array<Object> Array of objects which contains the contents of the message to be sent.

Example:

client.reply(REPLY_TOKEN, [
  {
    type: 'text',
    text: 'Hello!',
  },
]);

replyToken can only be used once, but you can send up to 5 messages using the same token.

const { Line } = require('messaging-api-line');

client.reply(REPLY_TOKEN, [
  Line.createText('Hello'),
  Line.createImage({
    originalContentUrl: 'https://example.com/original.jpg',
    previewImageUrl: 'https://example.com/preview.jpg',
  }),
  Line.createText('End'),
]);

There are a bunch of factory methods can be used to create messages:

  • Line.createText(text, options)
  • Line.createImage(image, options)
  • Line.createVideo(video, options)
  • Line.createAudio(audio, options)
  • Line.createLocation(location, options)
  • Line.createSticker(sticker, options)
  • Line.createImagemap(altText, imagemap, options)
  • Line.createTemplate(altText, template, options)
  • Line.createButtonTemplate(altText, buttonTemplate, options)
  • Line.createConfirmTemplate(altText, confirmTemplate, options)
  • Line.createCarouselTemplate(altText, columns, options)
  • Line.createImageCarouselTemplate(altText, columns, options)
  • Line.createFlex(altText, contents, options)

replyText(token, text, options) - Official Docs

Responds text message using specified reply token.

You can include LINE original emoji in text messages using character codes. For a list of LINE emoji that can be sent in LINE chats, see the emoji list.

Param Type Description
token String replyToken received via webhook.
text String Text of the message to be sent.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyText(REPLY_TOKEN, 'Hello!');

replyImage(token, image, options) - Official Docs

Responds image message using specified reply token.

Param Type Description
token String replyToken received via webhook.
image.originalContentUrl String Image URL.
image.previewImageUrl String Preview image URL.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyImage(REPLY_TOKEN, {
  originalContentUrl: 'https://example.com/original.jpg',
  previewImageUrl: 'https://example.com/preview.jpg',
});

replyVideo(token, video, options) - Official Docs

Responds video message using specified reply token.

Param Type Description
token String replyToken received via webhook.
video.originalContentUrl String URL of video file.
video.previewImageUrl String URL of preview image.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyVideo(REPLY_TOKEN, {
  originalContentUrl: 'https://example.com/original.mp4',
  previewImageUrl: 'https://example.com/preview.jpg',
});

replyAudio(token, audio, options) - Official Docs

Responds audio message using specified reply token.

Param Type Description
token String replyToken received via webhook.
audio.originalContentUrl String URL of audio file.
audio.duration Number Length of audio file (milliseconds).
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyAudio(REPLY_TOKEN, {
  originalContentUrl: 'https://example.com/original.m4a',
  duration: 240000,
});

replyLocation(token, location, options) - Official Docs

Responds location message using specified reply token.

Param Type Description
token String replyToken received via webhook.
location Object Object contains location's parameters.
location.title String Title of the location.
location.address String Address of the location.
location.latitude Number Latitude of the location.
location.longitude Number Longitude of the location.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyLocation(REPLY_TOKEN, {
  title: 'my location',
  address: '〒150-0002 東京都渋谷区渋谷２丁目２１−１',
  latitude: 35.65910807942215,
  longitude: 139.70372892916203,
});

replySticker(token, sticker, options) - Official Docs

Responds sticker message using specified reply token.
For a list of stickers that can be sent with the Messaging API, see the sticker list.

Param Type Description
token String replyToken received via webhook.
sticker.packageId String Package ID.
sticker.stickerId String Sticker ID.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replySticker(REPLY_TOKEN, { packageId: '1', stickerId: '1' });

Reply Imagemap Messages

replyImagemap(token, altText, imagemap, options) - Official Docs

Responds imagemap message using specified reply token.

Param Type Description
token String replyToken received via webhook.
altText String Alternative text.
imagemap Object Object contains imagemap's parameters.
imagemap.baseUrl String Base URL of image.
imagemap.baseSize Object Base size object.
imagemap.baseSize.width Number Width of base image.
imagemap.baseSize.height Number Height of base image.
imagemap.video Object Video object.
imagemap.video.originalContentUrl String URL of the video file (Max: 1000 characters).
imagemap.video.previewImageUrl String URL of the preview image (Max: 1000 characters).
imagemap.video.area.x Number Horizontal position of the video area relative to the top-left corner of the imagemap area.
imagemap.video.area.y Number Vertical position of the video area relative to the top-left corner of the imagemap area.
imagemap.video.area.width Number Width of the video area.
imagemap.video.area.height Number Height of the video area.
imagemap.video.externalLink.linkUri String Webpage URL. Called when the label displayed after the video is tapped.
imagemap.video.externalLink.label String Label. Displayed after the video is finished.
imagemap.actions Array<Object> Action when tapped.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyImagemap(REPLY_TOKEN, 'this is an imagemap', {
  baseUrl: 'https://example.com/bot/images/rm001',
  baseSize: {
    width: 1040,
    height: 1040,
  },
  actions: [
    {
      type: 'uri',
      linkUri: 'https://example.com/',
      area: {
        x: 0,
        y: 0,
        width: 520,
        height: 1040,
      },
    },
    {
      type: 'message',
      text: 'hello',
      area: {
        x: 520,
        y: 0,
        width: 520,
        height: 1040,
      },
    },
  ],
});

Reply Template Messages

replyTemplate(token, altText, template, options) - Official Docs

Responds template message using specified reply token.

Param Type Description
token String replyToken received via webhook.
altText String Alternative text.
template Object Object with the contents of the template.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyTemplate(REPLY_TOKEN, 'this is a template', {
  type: 'buttons',
  thumbnailImageUrl: 'https://example.com/bot/images/image.jpg',
  title: 'Menu',
  text: 'Please select',
  actions: [
    {
      type: 'postback',
      label: 'Buy',
      data: 'action=buy&itemid=123',
    },
    {
      type: 'postback',
      label: 'Add to cart',
      data: 'action=add&itemid=123',
    },
    {
      type: 'uri',
      label: 'View detail',
      uri: 'http://example.com/page/123',
    },
  ],
});

replyButtonTemplate(token, altText, buttonTemplate, options) - Official Docs

Alias: replyButtonsTemplate.

Responds button template message using specified reply token.

Param Type Description
token String replyToken received via webhook.
altText String Alternative text.
buttonTemplate Object Object contains buttonTemplate's parameters.
buttonTemplate.thumbnailImageUrl String Image URL of buttonTemplate.
buttonTemplate.imageAspectRatio String Aspect ratio of the image. Specify one of the following values: rectangle, square
buttonTemplate.imageSize String Size of the image. Specify one of the following values: cover, contain
buttonTemplate.imageBackgroundColor String Background color of image. Specify a RGB color value. The default value is #FFFFFF (white).
buttonTemplate.title String Title of buttonTemplate.
buttonTemplate.text String Message text of buttonTemplate.
buttonTemplate.defaultAction Object Action when image is tapped; set for the entire image, title, and text area.
buttonTemplate.actions Array<Object> Action when tapped.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyButtonTemplate(REPLY_TOKEN, 'this is a template', {
  thumbnailImageUrl: 'https://example.com/bot/images/image.jpg',
  title: 'Menu',
  text: 'Please select',
  actions: [
    {
      type: 'postback',
      label: 'Buy',
      data: 'action=buy&itemid=123',
    },
    {
      type: 'postback',
      label: 'Add to cart',
      data: 'action=add&itemid=123',
    },
    {
      type: 'uri',
      label: 'View detail',
      uri: 'http://example.com/page/123',
    },
  ],
});

replyConfirmTemplate(token, altText, confirmTemplate, options) - Official Docs

Responds confirm template message using specified reply token.

Param Type Description
token String replyToken received via webhook.
altText String Alternative text.
confirmTemplate Object Object contains confirmTemplate's parameters.
confirmTemplate.text String Message text of confirmTemplate.
confirmTemplate.actions Array<Object> Action when tapped.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyConfirmTemplate(REPLY_TOKEN, 'this is a confirm template', {
  text: 'Are you sure?',
  actions: [
    {
      type: 'message',
      label: 'Yes',
      text: 'yes',
    },
    {
      type: 'message',
      label: 'No',
      text: 'no',
    },
  ],
});

replyCarouselTemplate(token, altText, carouselItems, options) - Official Docs

Responds carousel template message using specified reply token.

Param Type Description
token String replyToken received via webhook.
altText String Alternative text.
carouselItems Array<Object> Array of columns which contains object for carousel.
options Object Object contains options.
options.imageAspectRatio String Aspect ratio of the image. Specify one of the following values: rectangle, square
options.imageSize String Size of the image. Specify one of the following values: cover, contain
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyCarouselTemplate(REPLY_TOKEN, 'this is a carousel template', [
  {
    thumbnailImageUrl: 'https://example.com/bot/images/item1.jpg',
    title: 'this is menu',
    text: 'description',
    actions: [
      {
        type: 'postback',
        label: 'Buy',
        data: 'action=buy&itemid=111',
      },
      {
        type: 'postback',
        label: 'Add to cart',
        data: 'action=add&itemid=111',
      },
      {
        type: 'uri',
        label: 'View detail',
        uri: 'http://example.com/page/111',
      },
    ],
  },
  {
    thumbnailImageUrl: 'https://example.com/bot/images/item2.jpg',
    title: 'this is menu',
    text: 'description',
    actions: [
      {
        type: 'postback',
        label: 'Buy',
        data: 'action=buy&itemid=222',
      },
      {
        type: 'postback',
        label: 'Add to cart',
        data: 'action=add&itemid=222',
      },
      {
        type: 'uri',
        label: 'View detail',
        uri: 'http://example.com/page/222',
      },
    ],
  },
]);

replyImageCarouselTemplate(token, altText, carouselItems, options) - Official Docs

Responds image carousel template message using specified reply token.

Param Type Description
token String replyToken received via webhook.
altText String Alternative text.
carouselItems Array<Object> Array of columns which contains object for image carousel.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyImageCarouselTemplate(
  REPLY_TOKEN,
  'this is an image carousel template',
  [
    {
      imageUrl: 'https://example.com/bot/images/item1.jpg',
      action: {
        type: 'postback',
        label: 'Buy',
        data: 'action=buy&itemid=111',
      },
    },
    {
      imageUrl: 'https://example.com/bot/images/item2.jpg',
      action: {
        type: 'message',
        label: 'Yes',
        text: 'yes',
      },
    },
    {
      imageUrl: 'https://example.com/bot/images/item3.jpg',
      action: {
        type: 'uri',
        label: 'View detail',
        uri: 'http://example.com/page/222',
      },
    },
  ]
);

Reply Flex Messages

replyFlex(token, altText, contents, options) - Official Docs

Responds flex message using specified reply token.

Param Type Description
token String replyToken received via webhook.
altText String Alternative text.
contents Object Flex Message container object.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.replyFlex(REPLY_TOKEN, 'this is a flex', {
  type: 'bubble',
  header: {
    type: 'box',
    layout: 'vertical',
    contents: [
      {
        type: 'text',
        text: 'Header text',
      },
    ],
  },
  hero: {
    type: 'image',
    url: 'https://example.com/flex/images/image.jpg',
  },
  body: {
    type: 'box',
    layout: 'vertical',
    contents: [
      {
        type: 'text',
        text: 'Body text',
      },
    ],
  },
  footer: {
    type: 'box',
    layout: 'vertical',
    contents: [
      {
        type: 'text',
        text: 'Footer text',
      },
    ],
  },
  styles: {
    comment: 'See the example of a bubble style object',
  },
});

Push API - Official Docs

Sends messages to a user, group, or room at any time.

push(userId, messages)

Sends messages using ID of the receiver.

Param Type Description
userId String ID of the receiver.
messages Array<Object> Array of objects which contains the contents of the message to be sent.

Example:

client.push(USER_ID, [
  {
    type: 'text',
    text: 'Hello!',
  },
]);

pushText(userId, text, options) - Official Docs

Sends text message using ID of the receiver.

You can include LINE original emoji in text messages using character codes. For a list of LINE emoji that can be sent in LINE chats, see the emoji list.

Param Type Description
userId String ID of the receiver.
text String Text of the message to be sent.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushText(USER_ID, 'Hello!');

pushImage(userId, image, options) - Official Docs

Sends image message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
image.originalContentUrl String Image URL.
image.previewImageUrl String Preview image URL.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushImage(USER_ID, {
  originalContentUrl: 'https://example.com/original.jpg',
  previewImageUrl: 'https://example.com/preview.jpg',
});

pushVideo(userId, video, options) - Official Docs

Sends video message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
video.originalContentUrl String URL of video file.
video.previewImageUrl String URL of preview image.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushVideo(USER_ID, {
  originalContentUrl: 'https://example.com/original.mp4',
  previewImageUrl: 'https://example.com/preview.jpg',
});

pushAudio(userId, audio, options) - Official Docs

Sends audio message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
audio.originalContentUrl String URL of audio file.
audio.duration Number Length of audio file (milliseconds).
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushAudio(USER_ID, {
  originalContentUrl: 'https://example.com/original.m4a',
  duration: 240000,
});

pushLocation(userId, location, options) - Official Docs

Sends location message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
location Object Object contains location's parameters.
location.title String Title of the location.
location.address String Address of the location.
location.latitude Number Latitude of the location.
location.longitude Number Longitude of the location.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushLocation(USER_ID, {
  title: 'my location',
  address: '〒150-0002 東京都渋谷区渋谷２丁目２１−１',
  latitude: 35.65910807942215,
  longitude: 139.70372892916203,
});

pushSticker(userId, sticker, options) - Official Docs

Sends sticker message using ID of the receiver.
For a list of stickers that can be sent with the Messaging API, see the sticker list.

Param Type Description
userId String ID of the receiver.
sticker.packageId String Package ID.
sticker.stickerId String Sticker ID.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushSticker(USER_ID, { packageId: '1', stickerId: '1' });

Push Imagemap Messages

pushImagemap(userId, altText, imagemap, options) - Official Docs

Sends imagemap message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
altText String Alternative text.
imagemap Object Object contains imagemap's parameters.
imagemap.baseUrl String Base URL of image.
imagemap.baseSize Object Base size object.
imagemap.baseSize.width Number Width of base image.
imagemap.baseSize.height Number Height of base image.
imagemap.video Object Video object.
imagemap.video.originalContentUrl String URL of the video file (Max: 1000 characters).
imagemap.video.previewImageUrl String URL of the preview image (Max: 1000 characters).
imagemap.video.area.x Number Horizontal position of the video area relative to the top-left corner of the imagemap area.
imagemap.video.area.y Number Vertical position of the video area relative to the top-left corner of the imagemap area.
imagemap.video.area.width Number Width of the video area.
imagemap.video.area.height Number Height of the video area.
imagemap.video.externalLink.linkUri String Webpage URL. Called when the label displayed after the video is tapped.
imagemap.video.externalLink.label String Label. Displayed after the video is finished.
imagemap.actions Array<Object> Action when tapped.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushImagemap(USER_ID, 'this is an imagemap', {
  baseUrl: 'https://example.com/bot/images/rm001',
  baseSize: {
    width: 1040,
    height: 1040,
  },
  actions: [
    {
      type: 'uri',
      linkUri: 'https://example.com/',
      area: {
        x: 0,
        y: 0,
        width: 520,
        height: 1040,
      },
    },
    {
      type: 'message',
      text: 'hello',
      area: {
        x: 520,
        y: 0,
        width: 520,
        height: 1040,
      },
    },
  ],
});

Push Template Messages

pushTemplate(userId, altText, template, options) - Official Docs

Sends template message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
altText String Alternative text.
template Object Object with the contents of the template.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushTemplate(USER_ID, 'this is a template', {
  type: 'buttons',
  thumbnailImageUrl: 'https://example.com/bot/images/image.jpg',
  title: 'Menu',
  text: 'Please select',
  actions: [
    {
      type: 'postback',
      label: 'Buy',
      data: 'action=buy&itemid=123',
    },
    {
      type: 'postback',
      label: 'Add to cart',
      data: 'action=add&itemid=123',
    },
    {
      type: 'uri',
      label: 'View detail',
      uri: 'http://example.com/page/123',
    },
  ],
});

pushButtonTemplate(userId, altText, buttonTemplate, options) - Official Docs

Alias: pushButtonsTemplate.

Sends button template message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
altText String Alternative text.
buttonTemplate Object Object contains buttonTemplate's parameters.
buttonTemplate.thumbnailImageUrl String Image URL of buttonTemplate.
buttonTemplate.imageAspectRatio String Aspect ratio of the image. Specify one of the following values: rectangle, square
buttonTemplate.imageSize String Size of the image. Specify one of the following values: cover, contain
buttonTemplate.imageBackgroundColor String Background color of image. Specify a RGB color value. The default value is #FFFFFF (white).
buttonTemplate.title String Title of buttonTemplate.
buttonTemplate.text String Message text of buttonTemplate.
buttonTemplate.defaultAction Object Action when image is tapped; set for the entire image, title, and text area.
buttonTemplate.actions Array<Object> Action when tapped.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushButtonTemplate(USER_ID, 'this is a template', {
  thumbnailImageUrl: 'https://example.com/bot/images/image.jpg',
  title: 'Menu',
  text: 'Please select',
  actions: [
    {
      type: 'postback',
      label: 'Buy',
      data: 'action=buy&itemid=123',
    },
    {
      type: 'postback',
      label: 'Add to cart',
      data: 'action=add&itemid=123',
    },
    {
      type: 'uri',
      label: 'View detail',
      uri: 'http://example.com/page/123',
    },
  ],
});

pushConfirmTemplate(userId, altText, confirmTemplate, options) - Official Docs

Sends confirm template message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
altText String Alternative text.
confirmTemplate Object Object contains confirmTemplate's parameters.
confirmTemplate.text String Message text of confirmTemplate.
confirmTemplate.actions Array<Object> Action when tapped.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushConfirmTemplate(USER_ID, 'this is a confirm template', {
  text: 'Are you sure?',
  actions: [
    {
      type: 'message',
      label: 'Yes',
      text: 'yes',
    },
    {
      type: 'message',
      label: 'No',
      text: 'no',
    },
  ],
});

pushCarouselTemplate(userId, altText, carouselItems, options) - Official Docs

Sends carousel template message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
altText String Alternative text.
carouselItems Array<Object> Array of columns which contains object for carousel.
options Object Object contains options.
options.imageAspectRatio String Aspect ratio of the image. Specify one of the following values: rectangle, square
options.imageSize String Size of the image. Specify one of the following values: cover, contain
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushCarouselTemplate(USER_ID, 'this is a carousel template', [
  {
    thumbnailImageUrl: 'https://example.com/bot/images/item1.jpg',
    title: 'this is menu',
    text: 'description',
    actions: [
      {
        type: 'postback',
        label: 'Buy',
        data: 'action=buy&itemid=111',
      },
      {
        type: 'postback',
        label: 'Add to cart',
        data: 'action=add&itemid=111',
      },
      {
        type: 'uri',
        label: 'View detail',
        uri: 'http://example.com/page/111',
      },
    ],
  },
  {
    thumbnailImageUrl: 'https://example.com/bot/images/item2.jpg',
    title: 'this is menu',
    text: 'description',
    actions: [
      {
        type: 'postback',
        label: 'Buy',
        data: 'action=buy&itemid=222',
      },
      {
        type: 'postback',
        label: 'Add to cart',
        data: 'action=add&itemid=222',
      },
      {
        type: 'uri',
        label: 'View detail',
        uri: 'http://example.com/page/222',
      },
    ],
  },
]);

pushImageCarouselTemplate(userId, altText, carouselItems, options) - Official Docs

Sends image carousel template message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
altText String Alternative text.
carouselItems Array<Object> Array of columns which contains object for image carousel.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushImageCarouselTemplate(
  USER_ID,
  'this is an image carousel template',
  [
    {
      imageUrl: 'https://example.com/bot/images/item1.jpg',
      action: {
        type: 'postback',
        label: 'Buy',
        data: 'action=buy&itemid=111',
      },
    },
    {
      imageUrl: 'https://example.com/bot/images/item2.jpg',
      action: {
        type: 'message',
        label: 'Yes',
        text: 'yes',
      },
    },
    {
      imageUrl: 'https://example.com/bot/images/item3.jpg',
      action: {
        type: 'uri',
        label: 'View detail',
        uri: 'http://example.com/page/222',
      },
    },
  ]
);

Push Flex Messages

pushFlex(userId, altText, contents, options) - Official Docs

Sends flex message using ID of the receiver.

Param Type Description
userId String ID of the receiver.
altText String Alternative text.
contents Object Flex Message container object.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.pushFlex(USER_ID, 'this is a flex', {
  type: 'bubble',
  header: {
    type: 'box',
    layout: 'vertical',
    contents: [
      {
        type: 'text',
        text: 'Header text',
      },
    ],
  },
  hero: {
    type: 'image',
    url: 'https://example.com/flex/images/image.jpg',
  },
  body: {
    type: 'box',
    layout: 'vertical',
    contents: [
      {
        type: 'text',
        text: 'Body text',
      },
    ],
  },
  footer: {
    type: 'box',
    layout: 'vertical',
    contents: [
      {
        type: 'text',
        text: 'Footer text',
      },
    ],
  },
  styles: {
    comment: 'See the example of a bubble style object',
  },
});

Multicast API - Official Docs

Sends messages to multiple users at any time.

multicast(userIds, messages)

Sends messages to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
messages Array<Object> Array of objects which contains the contents of the message to be sent.

Example:

client.multicast(
  [USER_ID],
  [
    {
      type: 'text',
      text: 'Hello!',
    },
  ]
);

multicastText(userIds, text, options) - Official Docs

Sends text message to multiple users.

You can include LINE original emoji in text messages using character codes. For a list of LINE emoji that can be sent in LINE chats, see the emoji list.

Param Type Description
userIds Array<String> IDs of the receivers.
text String Text of the message to be sent.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastText([USER_ID], 'Hello!');

multicastImage(userIds, image, options) - Official Docs

Sends image message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
image.originalContentUrl String Image URL.
image.previewImageUrl String Preview image URL.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastImage([USER_ID], {
  originalContentUrl: 'https://example.com/original.jpg',
  previewImageUrl: 'https://example.com/preview.jpg',
});

multicastVideo(userIds, video, options) - Official Docs

Sends video message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
video.originalContentUrl String URL of video file.
video.previewImageUrl String URL of preview image.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastVideo([USER_ID], {
  originalContentUrl: 'https://example.com/original.mp4',
  previewImageUrl: 'https://example.com/preview.jpg',
});

multicastAudio(userIds, audio, options) - Official Docs

Sends audio message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
audio.originalContentUrl String URL of audio file.
audio.duration Number Length of audio file (milliseconds).
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastAudio([USER_ID], {
  originalContentUrl: 'https://example.com/original.m4a',
  duration: 240000,
});

multicastLocation(userIds, location, options) - Official Docs

Sends location message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
location Object Object contains location's parameters.
location.title String Title of the location.
location.address String Address of the location.
location.latitude Number Latitude of the location.
location.longitude Number Longitude of the location.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastLocation([USER_ID], {
  title: 'my location',
  address: '〒150-0002 東京都渋谷区渋谷２丁目２１−１',
  latitude: 35.65910807942215,
  longitude: 139.70372892916203,
});

multicastSticker(userIds, sticker, options) - Official Docs

Sends sticker message to multiple users.
For a list of stickers that can be sent with the Messaging API, see the sticker list.

Param Type Description
userIds Array<String> IDs of the receivers.
sticker.packageId String Package ID.
sticker.stickerId String Sticker ID.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastSticker([USER_ID], {
  packageId: '1',
  stickerId: '1',
});

Multicast Imagemap Messages

multicastImagemap(userIds, altText, imagemap, options) - Official Docs

Sends imagemap message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
altText String Alternative text.
imagemap Object Object contains imagemap's parameters.
imagemap.baseUrl String Base URL of image.
imagemap.baseSize Object Base size object.
imagemap.baseSize.width Number Width of base image.
imagemap.baseSize.height Number Height of base image.
imagemap.video Object Video object.
imagemap.video.originalContentUrl String URL of the video file (Max: 1000 characters).
imagemap.video.previewImageUrl String URL of the preview image (Max: 1000 characters).
imagemap.video.area.x Number Horizontal position of the video area relative to the top-left corner of the imagemap area.
imagemap.video.area.y Number Vertical position of the video area relative to the top-left corner of the imagemap area.
imagemap.video.area.width Number Width of the video area.
imagemap.video.area.height Number Height of the video area.
imagemap.video.externalLink.linkUri String Webpage URL. Called when the label displayed after the video is tapped.
imagemap.video.externalLink.label String Label. Displayed after the video is finished.
imagemap.actions Array<Object> Action when tapped.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastImagemap([USER_ID], 'this is an imagemap', {
  baseUrl: 'https://example.com/bot/images/rm001',
  baseSize: {
    width: 1040,
    height: 1040,
  },
  actions: [
    {
      type: 'uri',
      linkUri: 'https://example.com/',
      area: {
        x: 0,
        y: 0,
        width: 520,
        height: 1040,
      },
    },
    {
      type: 'message',
      text: 'hello',
      area: {
        x: 520,
        y: 0,
        width: 520,
        height: 1040,
      },
    },
  ],
});

Multicast Template Messages

multicastTemplate(userIds, altText, template, options) - Official Docs

Sends template message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
altText String Alternative text.
template Object Object with the contents of the template.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastTemplate([USER_ID], 'this is a template', {
  type: 'buttons',
  thumbnailImageUrl: 'https://example.com/bot/images/image.jpg',
  title: 'Menu',
  text: 'Please select',
  actions: [
    {
      type: 'postback',
      label: 'Buy',
      data: 'action=buy&itemid=123',
    },
    {
      type: 'postback',
      label: 'Add to cart',
      data: 'action=add&itemid=123',
    },
    {
      type: 'uri',
      label: 'View detail',
      uri: 'http://example.com/page/123',
    },
  ],
});

multicastButtonTemplate(userIds, altText, buttonTemplate, options) - Official Docs

Alias: multicastButtonsTemplate.

Sends button template message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
altText String Alternative text.
buttonTemplate Object Object contains buttonTemplate's parameters.
buttonTemplate.thumbnailImageUrl String Image URL of buttonTemplate.
buttonTemplate.imageAspectRatio String Aspect ratio of the image. Specify one of the following values: rectangle, square
buttonTemplate.imageSize String Size of the image. Specify one of the following values: cover, contain
buttonTemplate.imageBackgroundColor String Background color of image. Specify a RGB color value. The default value is #FFFFFF (white).
buttonTemplate.title String Title of buttonTemplate.
buttonTemplate.text String Message text of buttonTemplate.
buttonTemplate.defaultAction Object Action when image is tapped; set for the entire image, title, and text area.
buttonTemplate.actions Array<Object> Action when tapped.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastButtonTemplate([USER_ID], 'this is a template', {
  thumbnailImageUrl: 'https://example.com/bot/images/image.jpg',
  title: 'Menu',
  text: 'Please select',
  actions: [
    {
      type: 'postback',
      label: 'Buy',
      data: 'action=buy&itemid=123',
    },
    {
      type: 'postback',
      label: 'Add to cart',
      data: 'action=add&itemid=123',
    },
    {
      type: 'uri',
      label: 'View detail',
      uri: 'http://example.com/page/123',
    },
  ],
});

multicastConfirmTemplate(userIds, altText, confirmTemplate, options) - Official Docs

Sends confirm template message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
altText String Alternative text.
confirmTemplate Object Object contains confirmTemplate's parameters.
confirmTemplate.text String Message text of confirmTemplate.
confirmTemplate.actions Array<Object> Action when tapped.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastConfirmTemplate([USER_ID], 'this is a confirm template', {
  text: 'Are you sure?',
  actions: [
    {
      type: 'message',
      label: 'Yes',
      text: 'yes',
    },
    {
      type: 'message',
      label: 'No',
      text: 'no',
    },
  ],
});

multicastCarouselTemplate(userIds, altText, carouselItems, options) - Official Docs

Sends carousel template message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
altText String Alternative text.
carouselItems Array<Object> Array of columns which contains object for carousel.
options Object Object contains options.
options.imageAspectRatio String Aspect ratio of the image. Specify one of the following values: rectangle, square
options.imageSize String Size of the image. Specify one of the following values: cover, contain
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastCarouselTemplate([USER_ID], 'this is a carousel template', [
  {
    thumbnailImageUrl: 'https://example.com/bot/images/item1.jpg',
    title: 'this is menu',
    text: 'description',
    actions: [
      {
        type: 'postback',
        label: 'Buy',
        data: 'action=buy&itemid=111',
      },
      {
        type: 'postback',
        label: 'Add to cart',
        data: 'action=add&itemid=111',
      },
      {
        type: 'uri',
        label: 'View detail',
        uri: 'http://example.com/page/111',
      },
    ],
  },
  {
    thumbnailImageUrl: 'https://example.com/bot/images/item2.jpg',
    title: 'this is menu',
    text: 'description',
    actions: [
      {
        type: 'postback',
        label: 'Buy',
        data: 'action=buy&itemid=222',
      },
      {
        type: 'postback',
        label: 'Add to cart',
        data: 'action=add&itemid=222',
      },
      {
        type: 'uri',
        label: 'View detail',
        uri: 'http://example.com/page/222',
      },
    ],
  },
]);

multicastImageCarouselTemplate(userIds, altText, carouselItems, options) - Official Docs

Sends image carousel template message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
altText String Alternative text.
carouselItems Array<Object> Array of columns which contains object for image carousel.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastImageCarouselTemplate(
  [USER_ID],
  'this is an image carousel template',
  [
    {
      imageUrl: 'https://example.com/bot/images/item1.jpg',
      action: {
        type: 'postback',
        label: 'Buy',
        data: 'action=buy&itemid=111',
      },
    },
    {
      imageUrl: 'https://example.com/bot/images/item2.jpg',
      action: {
        type: 'message',
        label: 'Yes',
        text: 'yes',
      },
    },
    {
      imageUrl: 'https://example.com/bot/images/item3.jpg',
      action: {
        type: 'uri',
        label: 'View detail',
        uri: 'http://example.com/page/222',
      },
    },
  ]
);

Multicast Flex Messages

multicastFlex(userIds, altText, contents, options) - Official Docs

Sends flex message to multiple users.

Param Type Description
userIds Array<String> IDs of the receivers.
altText String Alternative text.
contents Object Flex Message container object.
options Object Optional options.
options.quickReply Object Quick reply object to attach to the message.
options.quickReply.items Array Quick reply items.

Example:

client.multicastFlex([USER_ID], 'this is a flex', {
  type: 'bubble',
  header: {
    type: 'box',
    layout: 'vertical',
    contents: [
      {
        type: 'text',
        text: 'Header text',
      },
    ],
  },
  hero: {
    type: 'image',
    url: 'https://example.com/flex/images/image.jpg',
  },
  body: {
    type: 'box',
    layout: 'vertical',
    contents: [
      {
        type: 'text',
        text: 'Body text',
      },
    ],
  },
  footer: {
    type: 'box',
    layout: 'vertical',
    contents: [
      {
        type: 'text',
        text: 'Footer text',
      },
    ],
  },
  styles: {
    comment: 'See the example of a bubble style object',
  },
});

Quick Replies - Official Docs

Sends message with buttons appear at the bottom of the chat screen.

context.replyText(
  REPLY_TOKEN,
  'Select your favorite food category or send me your location!',
  {
    quickReply: {
      items: [
        {
          type: 'action',
          imageUrl: 'https://example.com/sushi.png',
          action: {
            type: 'message',
            label: 'Sushi',
            text: 'Sushi',
          },
        },
        {
          type: 'action',
          imageUrl: 'https://example.com/tempura.png',
          action: {
            type: 'message',
            label: 'Tempura',
            text: 'Tempura',
          },
        },
        {
          type: 'action',
          action: {
            type: 'location',
            label: 'Send location',
          },
        },
      ],
    },
  }
);

Content API - Official Docs

retrieveMessageContent(messageId)

Retrieves image, video, and audio data sent in specified message.

Param Type Description
messageId String Message ID.

Example:

client.retrieveMessageContent(MESSAGE_ID).then((buffer) => {
  console.log(buffer);
  // <Buffer 61 61 73 64 ...>
});

Profile API - Official Docs

getUserProfile(userId)

Gets user profile information.

Param Type Description
userId String ID of the user.

Example:

client.getUserProfile(USER_ID).then((profile) => {
  console.log(profile);
  // {
  //   displayName: 'LINE taro',
  //   userId: USER_ID,
  //   pictureUrl: 'http://obs.line-apps.com/...',
  //   statusMessage: 'Hello, LINE!',
  // }
});

Group/Room Member Profile API - Official Docs

getGroupMemberProfile(groupId, userId) - Official Docs

Gets the user profile of a member of a group that the bot is in. This includes the user IDs of users who has not added the bot as a friend or has blocked the bot.

Param Type Description
groupId String ID of the group.
userId String ID of the user.

Example:

client.getGroupMemberProfile(GROUP_ID, USER_ID).then((member) => {
  console.log(member);
  // {
  //   "displayName":"LINE taro",
  //   "userId":"Uxxxxxxxxxxxxxx...",
  //   "pictureUrl":"http://obs.line-apps.com/..."
  // }
});

getRoomMemberProfile(roomId, userId) - Official Docs

Gets the user profile of a member of a room that the bot is in. This includes the user IDs of users who has not added the bot as a friend or has blocked the bot.

Param Type Description
roomId String ID of the group.
userId String ID of the user.

Example:

client.getRoomMemberProfile(ROOM_ID, USER_ID).then((member) => {
  console.log(member);
  // {
  //   "displayName":"LINE taro",
  //   "userId":"Uxxxxxxxxxxxxxx...",
  //   "pictureUrl":"http://obs.line-apps.com/..."
  // }
});

Group/Room Member IDs API - Official Docs

getGroupMemberIds(groupId, start) - Official Docs

Gets the ID of the users of the members of a group that the bot is in. This includes the user IDs of users who have not added the bot as a friend or has blocked the bot.
This feature is only available for LINE@ Approved accounts or official accounts.

Param Type Description
groupId String ID of the group.
start String continuationToken.

Example:

client.getGroupMemberIds(GROUP_ID, CURSOR).then((res) => {
  console.log(res);
  // {
  //   memberIds: [
  //     'Uxxxxxxxxxxxxxx...',
  //     'Uxxxxxxxxxxxxxx...',
  //     'Uxxxxxxxxxxxxxx...'
  //   ],
  //   next: 'jxEWCEEP...'
  // }
});

getAllGroupMemberIds(groupId)

Recursively gets the ID of the users of the members of a group that the bot is in using cursors.
This feature is only available for LINE@ Approved accounts or official accounts.

Param Type Description
groupId String ID of the group.

Example:

client.getAllGroupMemberIds(GROUP_ID).then((ids) => {
  console.log(ids);
  // [
  //   'Uxxxxxxxxxxxxxx..1',
  //   'Uxxxxxxxxxxxxxx..2',
  //   'Uxxxxxxxxxxxxxx..3',
  //   'Uxxxxxxxxxxxxxx..4',
  //   'Uxxxxxxxxxxxxxx..5',
  //   'Uxxxxxxxxxxxxxx..6',
  // ]
});

getRoomMemberIds(roomId, start) - Official Docs

Gets the ID of the users of the members of a room that the bot is in. This includes the user IDs of users who have not added the bot as a friend or has blocked the bot.
This feature is only available for LINE@ Approved accounts or official accounts.

Param Type Description
roomId String ID of the room.
start String continuationToken.

Example:

client.getRoomMemberIds(ROOM_ID, CURSOR).then((res) => {
  console.log(res);
  // {
  //   memberIds: [
  //     'Uxxxxxxxxxxxxxx...',
  //     'Uxxxxxxxxxxxxxx...',
  //     'Uxxxxxxxxxxxxxx...'
  //   ],
  //   next: 'jxEWCEEP...'
  // }
});

getAllRoomMemberIds(roomId)

Recursively gets the ID of the users of the members of a room that the bot is in using cursors.
This feature is only available for LINE@ Approved accounts or official accounts.

Param Type Description
roomId String ID of the room.

Example:

client.getAllRoomMemberIds(ROOM_ID).then((ids) => {
  console.log(ids);
  // [
  //   'Uxxxxxxxxxxxxxx..1',
  //   'Uxxxxxxxxxxxxxx..2',
  //   'Uxxxxxxxxxxxxxx..3',
  //   'Uxxxxxxxxxxxxxx..4',
  //   'Uxxxxxxxxxxxxxx..5',
  //   'Uxxxxxxxxxxxxxx..6',
  // ]
});

Leave API - Official Docs

leaveGroup(groupId) - Official Docs

Leave a group.

Param Type Description
groupId String ID of the group.

Example:

client.leaveGroup(GROUP_ID);

leaveRoom(roomId) - Official Docs

Leave a room.

Param Type Description
roomId String ID of the room.

Example:

client.leaveRoom(ROOM_ID);

Rich Menu API - Official Docs

getRichMenuList() - Official Docs

Gets a list of all uploaded rich menus.

Example:

client.getRichMenuList().then((richMenus) => {
  console.log(richMenus);
  // [
  //   {
  //     richMenuId: 'RICH_MENU_ID',
  //     size: {
  //       width: 2500,
  //       height: 1686,
  //     },
  //     selected: false,
  //     name: 'Nice richmenu',
  //     chatBarText: 'Tap here',
  //     areas: [
  //       {
  //         bounds: {
  //           x: 0,
  //           y: 0,
  //           width: 2500,
  //           height: 1686,
  //         },
  //         action: {
  //           type: 'postback',
  //           data: 'action=buy&itemid=123',
  //         },
  //       },
  //     ],
  //   },
  // ]
});

getRichMenu(richMenuId) - Official Docs

Gets a rich menu via a rich menu ID.

Param Type Description
richMenuId String ID of an uploaded rich menu.

Example:

client.getRichMenu(RICH_MENU_ID).then((richMenu) => {
  console.log(richMenu);
  // {
  //   richMenuId: 'RICH_MENU_ID',
  //   size: {
  //     width: 2500,
  //     height: 1686,
  //   },
  //   selected: false,
  //   name: 'Nice richmenu',
  //   chatBarText: 'Tap here',
  //   areas: [
  //     {
  //       bounds: {
  //         x: 0,
  //         y: 0,
  //         width: 2500,
  //         height: 1686,
  //       },
  //       action: {
  //         type: 'postback',
  //         data: 'action=buy&itemid=123',
  //       },
  //     },
  //   ],
  // }
});

createRichMenu(richMenu) - Official Docs

Creates a rich menu.

Param Type Description
richMenu RichMenu A rich menu object.

Example:

client
  .createRichMenu({
    size: {
      width: 2500,
      height: 1686,
    },
    selected: false,
    name: 'Nice richmenu',
    chatBarText: 'Tap here',
    areas: [
      {
        bounds: {
          x: 0,
          y: 0,
          width: 2500,
          height: 1686,
        },
        action: {
          type: 'postback',
          data: 'action=buy&itemid=123',
        },
      },
    ],
  })
  .then((richMenu) => {
    console.log(richMenu);
    // {
    //   richMenuId: "{richMenuId}"
    // }
  });

deleteRichMenu(richMenuId) - Official Docs

Deletes a rich menu.

Param Type Description
richMenuId String ID of an uploaded rich menu.

Example:

client.deleteRichMenu(RICH_MENU_ID);

getLinkedRichMenu(userId) - Official Docs

Gets the ID of the rich menu linked to a user.

Param Type Description
userId String ID of the user.

Example:

client.getLinkedRichMenu(USER_ID).then((richMenu) => {
  console.log(richMenu);
  // {
  //   richMenuId: "{richMenuId}"
  // }
});

linkRichMenu(userId, richMenuId) - Official Docs

Links a rich menu to a user.

Param Type Description
userId String ID of the user.
richMenuId String ID of an uploaded rich menu.

Example:

client.linkRichMenu(USER_ID, RICH_MENU_ID);

unlinkRichMenu(userId) - Official Docs

Unlinks a rich menu from a user.

Param Type Description
userId String ID of the user.

Example:

client.unlinkRichMenu(USER_ID);

downloadRichMenuImage(richMenuId) - Official Docs

Downloads an image associated with a rich menu.

Param Type Description
richMenuId String ID of an uploaded rich menu.

Example:

client.downloadRichMenuImage(RICH_MENU_ID).then((imageBuffer) => {
  console.log(imageBuffer);
  // <Buffer 61 61 73 64 ...>
});

uploadRichMenuImage(richMenuId, buffer) - Official Docs

Uploads and attaches an image to a rich menu.

Param Type Description
richMenuId String ID of an uploaded rich menu.
buffer Buffer Image buffer which must be jpeg or png format.

Example:

const fs = require('fs');

client.uploadRichMenuImage(RICH_MENU_ID, fs.readFileSync('image.png'));

getDefaultRichMenu() - Official Docs

Gets the ID of the default rich menu set with the Messaging API.

Example:

client.getDefaultRichMenu().then((richMenu) => {
  console.log(richMenu);
  // {
  //   "richMenuId": "{richMenuId}"
  // }
});

setDefaultRichMenu(richMenuId) - Official Docs

Sets the default rich menu. The default rich menu is displayed to all users who have added your bot as a friend and are not linked to any per-user rich menu.

Param Type Description
richMenuId String ID of an uploaded rich menu.

Example:

client.setDefaultRichMenu('{richMenuId}');

The rich menu is displayed in the following order of priority (highest to lowest): The per-user rich menu set with the Messaging API, the default rich menu set with the Messaging API, and the default rich menu set with LINE@ Manager.


deleteDefaultRichMenu() - Official Docs

Cancels the default rich menu set with the Messaging API.

Example:

client.deleteDefaultRichMenu();

Account Link API - Official Docs

issueLinkToken(userId) - Official Docs

Issues a link token used for the account link feature.

Param Type Description
userId String ID of the user.

Example:

client.issueLinkToken(USER_ID).then((result) => {
  console.log(result);
  // {
  //   linkToken: 'NMZTNuVrPTqlr2IF8Bnymkb7rXfYv5EY',
  // }
});

LINE Front-end Framework API - Official Docs

createLiffApp(view)

Adds an app to LIFF. You can add up to 10 LIFF apps on one channel.

Param Type Description
view.type String Size of the LIFF app view.
view.url String URL of the LIFF app. Must start with HTTPS.

Example:

client.createLiffApp({
  type: 'compact',
  url: 'https://example.com/liff-app',
});

View type can be specified one of the following values:

  • compact: 50% of the screen height of the device. This size can be specified only for the chat screen.
  • tall: 80% of the screen height of the device. This size can be specified only for the chat screen.
  • full: 100% of the screen height of the device. This size can be specified for any screens in the LINE app.

updateLiffApp(liffId, view)

Updates LIFF app settings.

Param Type Description
liffId String ID of the LIFF app to be updated.
view.type String Size of the LIFF app view.
view.url String URL of the LIFF app. Must start with HTTPS.

Example:

client.updateLiffApp(LIFF_ID, {
  type: 'compact',
  url: 'https://example.com/liff-app',
});

getLiffAppList

Gets information on all the LIFF apps registered in the channel.

Example:

client.getLiffApps().then((apps) => {
  console.log(apps);
  // [
  //   {
  //     liffId: '{liffId}',
  //     view: {
  //       type: 'full',
  //       url: 'https://example.com/myservice',
  //     },
  //   },
  //   {
  //     liffId: '{liffId}',
  //     view: {
  //       type: 'tall',
  //       url: 'https://example.com/myservice2',
  //     },
  //   },
  // ]
});

deleteLiffApp(liffId)

Deletes a LIFF app.

Param Type Description
liffId String ID of the LIFF app to be deleted.

Example:

client.deleteLiffApp(LIFF_ID);

Line Pay

Initialize

const { LinePay } = require('messaging-api-line');

const linePay = new LinePay({
  channelId: CHANNEL_ID,
  channelSecret: CHANNEL_SECRET,
  sandbox: true, // default false
});

getPayments(options)

Gets payment information from LINE Pay.

Param Type Description
options.transactionId String ID of the transaction.
options.orderId String A unique number managed by a Merchant.

Example:

linePay
  .getPayments({
    transactionId: '20140101123123123',
    orderId: '1002045572',
  })
  .then((result) => {
    console.log(result);
    // [
    //   {
    //     transactionId: 1020140728100001997,
    //     transactionDate: '2014-07-28T09:48:43Z',
    //     transactionType: 'PARTIAL_REFUND',
    //     amount: -5,
    //     productName: '',
    //     currency: 'USD',
    //     orderId: '20140101123123123',
    //     originalTransactionId: 1020140728100001999,
    //   },
    // ]
  });

getAuthorizations(options)

Gets authorization information from LINE Pay.

Param Type Description
options.transactionId String ID of the transaction.
options.orderId String A unique number managed by a Merchant.

Example:

linePay
  .getAuthorizations({
    transactionId: '20140101123123123',
    orderId: '1002045572',
  })
  .then((result) => {
    console.log(result);
    // [
    //   {
    //     transactionId: 201612312312333401,
    //     transactionDate: '2014-07-28T09:48:43Z',
    //     transactionType: 'PAYMENT',
    //     payInfo: [
    //       {
    //         method: 'BALANCE',
    //         amount: 10,
    //       },
    //       {
    //         method: 'DISCOUNT',
    //         amount: 10,
    //       },
    //     ],

    //     productName: 'tes production',
    //     currency: 'USD',
    //     orderId: '20140101123123123',
    //     payStatus: 'AUTHORIZATION',
    //     authorizationExpireDate: '2014-07-28T09:48:43Z',
    //   },
    // ]
  });

reserve(payment)

Reserves payment information in LINE Pay.

Param Type Description
payment.productName Number Product name.
payment.amount Number Payment amount.
payment.currency String Payment currency (ISO 4217). Supported: USD, JPY, TWD, THB
payment.confirmUrl String Merchant's URL that buyer is redirected to.
payment.orderId String A unique number managed by a Merchant.
payment.productImageUrl String Product image URL. 84 x 84. Optional.
payment.mid String LINE member ID. Optional.
payment.oneTimeKey String One time key. Optional.
payment.confirmUrlType String confirmUrl type. Optional.
payment.checkConfirmUrlBrowser Boolean Whether to check browser or not. Optional.
payment.cancelUrl String Payment cancellation page URL. Optional.
payment.packageName String Information to avoid phishing in Android. Optional.
payment.deliveryPlacePhone String Recipient contact. Optional.
payment.payType String Payment types. Optional.
payment.langCd String Language code. Optional.
payment.capture String Whether to capture or not. Optional.
payment.extras String Optional.

Example:

linePay
  .reserve({
    productName: 'test product',
    amount: 10,
    currency: 'USD',
    orderId: '20140101123456789',
    confirmUrl:
      'naversearchapp://inappbrowser?url=http%3A%2F%2FtestMall.com%2FcheckResult.nhn%3ForderId%3D20140101123456789',
  })
  .then((result) => {
    console.log(result);
    // {
    //   transactionId: 123123123123,
    //   paymentUrl: {
    //     web: 'http://web-pay.line.me/web/wait?transactionReserveId=blahblah',
    //     app: 'line://pay/payment/blahblah',
    //   },
    //   paymentAccessToken: '187568751124',
    // }
  });

confirm(transactionId, payment)

Completes the payment when capture parameter is false on payment reservation. Otherwise, authorize the payment.

Param Type Description
transactionId String ID of the transaction.
payment.amount Number Payment amount.
payment.currency String Payment currency (ISO 4217). Supported: USD, JPY, TWD, THB

Example:

linePay
  .confirm(TRANSACTION_ID, {
    amount: 1000,
    currency: 'TWD',
  })
  .then((result) => {
    console.log(result);
    // {
    //   orderId: 'order_210124213',
    //   transactionId: 20140101123123123,
    //   payInfo: [
    //     {
    //       method: 'BALANCE',
    //       amount: 10,
    //     },
    //     {
    //       method: 'DISCOUNT',
    //       amount: 10,
    //     },
    //   ],
    // }
  });

capture(transactionId, payment)

Completes a payment that was only authorized by calling confirm API.

Param Type Description
transactionId String ID of the transaction.
payment.amount Number Payment amount.
payment.currency String Payment currency (ISO 4217). Supported: USD, JPY, TWD, THB

Example:

linePay
  .capture(TRANSACTION_ID, {
    amount: 1000,
    currency: 'TWD',
  })
  .then((result) => {
    console.log(result);
    // {
    //   transactionId: 20140101123123123,
    //   orderId: 'order_210124213',
    //   payInfo: [
    //     {
    //       method: 'BALANCE',
    //       amount: 10,
    //     },
    //     {
    //       method: 'DISCOUNT',
    //       amount: 10,
    //     },
    //   ],
    // }
  });

void(transactionId)

Voids an authorized transaction.

Param Type Description
transactionId String ID of the transaction.

Example:

linePay.void(TRANSACTION_ID);

refund(transactionId, options)

Requests refund of the payment.

Param Type Description
transactionId String ID of the transaction.
options.refundAmount Number Refund amount.

Example:

linePay.refund(TRANSACTION_ID).then((result) => {
  console.log(result);
  // {
  //   refundTransactionId: 123123123123,
  //   refundTransactionDate: '2014-01-01T06:17:41Z',
  // }
});

Debug Tips

Log Requests Details

To enable default request debugger, use following DEBUG env variable:

DEBUG=messaging-api:request

If you want to use a custom request logging function, just provide your own onRequest:

const client = new LineClient({
  accessToken: ACCESS_TOKEN,
  channelSecret: CHANNEL_SECRET,
  onRequest: ({ method, url, headers, body }) => {
    /* */
  },
});

Testing

Point Requests to Your Dummy Server

To avoid sending requests to real LINE server, specify the origin option when constructing your client:

const { LineClient } = require('messaging-api-line');

const client = new LineClient({
  accessToken: ACCESS_TOKEN,
  channelSecret: CHANNEL_SECRET,
  origin: 'https://mydummytestserver.com',
});

Warning: Don't do this on your production server.