LINE

LIFF Server API

Four operations for managing LINE Front-end Framework apps on a LINE Login channel — add, list, update and delete LIFF apps. LIFF apps are web applications that run inside the LINE client's in-app browser and can read the logged-in user's profile, obtain an ID token, send messages into the current chat and open the scanner.

GitHub OpenAPI

Documentation

📖
APIReference
https://developers.line.biz/en/reference/liff-server/
📖
Documentation
https://developers.line.biz/en/docs/liff/

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/line/refs/heads/main/openapi/line-liff-openapi.yml

Other Resources

🔗
Overlay
https://raw.githubusercontent.com/api-evangelist/line/refs/heads/main/overlays/line-liff-overlay.yaml
🔗
CLI
https://raw.githubusercontent.com/api-evangelist/line/refs/heads/main/cli/line-cli.yml

OpenAPI Specification

line-liff-openapi.yml Raw ↑ 
openapi: "3.0.2"
info:
  title: LIFF server API
  version: "1.0.0"
  description: "LIFF Server API."

servers:
  - url: https://api.line.me/

security:
  - Bearer: []

tags:
  - name: liff

paths:
  "/liff/v1/apps":
    post:
      operationId: addLIFFApp
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#add-liff-app
      summary: "Create LIFF app"
      tags:
        - liff
      description: "Adding the LIFF app to a channel"
      requestBody:
        content:
          application/json:
            schema:
              "$ref": "#/components/schemas/AddLiffAppRequest"
        required: true
      responses:
        "200":
          description: "OK"
          content:
            "application/json":
              schema:
                $ref: "#/components/schemas/AddLiffAppResponse"
              example:
                liffId: "{liffId}"
        "400":
          description: |+
            This status code means one of the following:
            - The request contains an invalid value.
            - The maximum number of LIFF apps that can be added to the channel has been reached.
        "401":
          description: |+
            Authentication failed.

    get:
      operationId: getAllLIFFApps
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#get-all-liff-apps
      summary: "Get all LIFF apps"
      description: "Gets information on all the LIFF apps added to the channel."
      tags:
        - liff
      responses:
        "200":
          description: "OK"
          content:
            "application/json":
              schema:
                $ref: "#/components/schemas/GetAllLiffAppsResponse"
              example:
                apps:
                  - liffId: "{liffId}"
                    view:
                      type: full
                      url: https://example.com/myservice
                    description: "Happy New York"
                    permanentLinkPattern: concat
                  - liffId: "{liffId}"
                    view:
                      type: tall
                      url: https://example.com/myservice2
                    features:
                      ble: true
                      qrCode: true
                    permanentLinkPattern: concat
                    scope:
                      - profile
                      - chat_message.write
                    botPrompt: none
        "401":
          description: |+
            Authentication failed.
        "404":
          description: |+
            There is no LIFF app on the channel.



  "/liff/v1/apps/{liffId}":
    parameters:
      - name: liffId
        in: path
        required: true
        description: "ID of the LIFF app to be updated"
        schema:
          type: string
    put:
      operationId: updateLIFFApp
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#update-liff-app
      summary: "Update LIFF app from a channel"
      description: "Update LIFF app settings"
      tags:
        - liff
      requestBody:
        content:
          application/json:
            schema:
              "$ref": "#/components/schemas/UpdateLiffAppRequest"
        required: true
      responses:
        "200":
          description: "OK"
        "400":
          description: |+
            The request contains an invalid value.
        "401":
          description: |+
            Authentication failed.
        "404":
          description: |+
            This status code means one of the following:
            - The specified LIFF app does not exist.
            - The specified LIFF app has been added to another channel.
    delete:
      operationId: deleteLIFFApp
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#delete-liff-app
      summary: "Delete LIFF app from a channel"
      description: |+
        Deletes a LIFF app from a channel.
      tags:
        - liff
      responses:
        "200":
          description: "OK"
        "401":
          description: |+
            Authentication failed.
        "404":
          description: |+
            This status code means one of the following:
            - The specified LIFF app does not exist.
            - The specified LIFF app has been added to another channel.

components:
  securitySchemes:
    Bearer:
      type: http
      scheme: bearer
      description: "Channel access token"

  schemas:
    AddLiffAppRequest:
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#add-liff-app
      type: object
      required:
        - view
      properties:
        view:
          $ref: "#/components/schemas/LiffView"
        description:
          type: string
          description: |+
            Name of the LIFF app.

            The LIFF app name can't include "LINE" or similar strings, or inappropriate strings.
        features:
          $ref: "#/components/schemas/LiffFeatures"
        permanentLinkPattern:
          type: string
          description: |+
            How additional information in LIFF URLs is handled. Specify `concat`.
        scope:
          type: array
          items:
            $ref: "#/components/schemas/LiffScope"
        botPrompt:
          $ref: "#/components/schemas/LiffBotPrompt"
    LiffBotPrompt:
      type: string
      description: |+
        Specify the setting for bot link feature with one of the following values:

        `normal`: Display the option to add the LINE Official Account as a friend in the channel consent screen.
        `aggressive`: Display a screen with the option to add the LINE Official Account as a friend after the channel consent screen.
        `none`: Don't display the option to add the LINE Official Account as a friend.
          The default value is none.
      enum:
        - normal
        - aggressive
        - none
    LiffView:
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#add-liff-app
      type: object
      required:
        - type
        - url
      properties:
        type:
          description: |+
            Size of the LIFF app view. Specify one of these values:
            - compact
            - tall
            - full
          type: string
          enum:
            - compact
            - tall
            - full
        url:
          type: string
          format: uri
          description: |+
            Endpoint URL. This is the URL of the web app that implements the LIFF app
            (e.g. https://example.com).
            Used when the LIFF app is launched using the LIFF URL.
            The URL scheme must be https. URL fragments (#URL-fragment) can't be specified.
        moduleMode:
          type: boolean
          description: |+
            `true` to use the LIFF app in modular mode.
            When in modular mode, the action button in the header is not displayed.
    UpdateLiffView:
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#update-liff-app
      type: object
      properties:
        type:
          description: |+
            Size of the LIFF app view. Specify one of these values:
            - compact
            - tall
            - full
          type: string
          enum:
            - compact
            - tall
            - full
        url:
          type: string
          format: uri
          description: |+
            Endpoint URL. This is the URL of the web app that implements the LIFF app
            (e.g. https://example.com).
            Used when the LIFF app is launched using the LIFF URL.
            The URL scheme must be https. URL fragments (#URL-fragment) can't be specified.
        moduleMode:
          type: boolean
          description: |+
            `true` to use the LIFF app in modular mode.
            When in modular mode, the action button in the header is not displayed.
    LiffFeatures:
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#get-all-liff-apps
      type: object
      properties:
        ble:
          type: boolean
          description: |+
            `true` if the LIFF app supports Bluetooth® Low Energy for LINE Things. `false` otherwise.
        qrCode:
          type: boolean
          description: |+
            `true` to use the 2D code reader in the LIFF app. false otherwise. The default value is `false`.
          default: false

    AddLiffAppResponse:
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#add-liff-app
      type: object
      required:
        - liffId
      properties:
        liffId:
          type: string

    UpdateLiffAppRequest:
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#add-liff-app
      type: object
      properties:
        view:
          $ref: "#/components/schemas/UpdateLiffView"
        description:
          type: string
          description: |+
            Name of the LIFF app.

            The LIFF app name can't include "LINE" or similar strings, or inappropriate strings.
        features:
          $ref: "#/components/schemas/LiffFeatures"
        permanentLinkPattern:
          type: string
          description: |+
            How additional information in LIFF URLs is handled. Specify `concat`.
        scope:
          type: array
          items:
            $ref: "#/components/schemas/LiffScope"
        botPrompt:
          $ref: "#/components/schemas/LiffBotPrompt"

    LiffScope:
      type: string
      enum:
        - openid
        - email
        - profile
        - chat_message.write
      description: |+
        Array of scopes required for some LIFF SDK methods to function.
        The default value is `["profile", "chat_message.write"]`.

    GetAllLiffAppsResponse:
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#get-all-liff-apps
      type: object
      properties:
        apps:
          type: array
          items:
            $ref: "#/components/schemas/LiffApp"
    LiffApp:
      externalDocs:
        url: https://developers.line.biz/en/reference/liff-server/#get-all-liff-apps
      type: object
      properties:
        liffId:
          type: string
          description: "LIFF app ID"
        view:
          $ref: "#/components/schemas/LiffView"
        description:
          type: string
          description: "Name of the LIFF app"
        features:
          $ref: "#/components/schemas/LiffFeatures"
        permanentLinkPattern:
          type: string
          description: |+
            How additional information in LIFF URLs is handled. concat is returned.
        scope:
          type: array
          items:
            $ref: "#/components/schemas/LiffScope"
        botPrompt:
          $ref: "#/components/schemas/LiffBotPrompt"