> ## Documentation Index > Fetch the complete documentation index at: https://docs.aitoearn.ai/llms.txt > Use this file to discover all available pages before exploring further. # Create Douyin Check-in > Create a Douyin offline check-in publish entry. The API key belongs to the integration partner; the person scanning the QR code does not need an AiToEarn account and does not need to authorize or bind a Douyin account in advance. Store `recordId`. You can display the server-generated `userAction.qrCodeUrl` directly or generate your own QR code from `userAction.shortLink` to customize its size, styling, or logo. Scanning the code opens the Douyin App, where the user confirms and completes publishing. `schemeUrl` can be used by a mobile page to attempt to open the Douyin App directly. The initial `status` is always `8`, which means user action is required and does not indicate success. After publishing completes, AiToEarn updates the publish record from the Douyin webhook. From the integration backend, use the same API key that created the record to call the existing `GET /api/v2/channels/publish/records/{recordId}` endpoint. The QR code and launch links expire; use `expiresAt` as the source of truth and create a new entry after expiration. Images and video cannot be mixed. Up to 12 JPG, JPEG, PNG, or BMP images are supported, with a maximum size of 20 MB each. One MP4, AVI, MKV, or MOV video is supported, with a maximum size of 1 GB and a maximum duration of 3,600 seconds. Each API key can call this endpoint up to 30 times per 60 seconds. ## OpenAPI ````yaml /openapi/en/aitoearn.openapi.json post /api/v2/channels/douyin/open/offline-qr openapi: 3.0.1 info: title: AiToEarn Open Platform API description: >- AiToEarn Open Platform API. You can switch between the China and international sites for testing. Business success is determined by whether the response body has code === 0. version: 1.0.0 contact: {} servers: - url: https://aitoearn.cn description: China site - url: https://aitoearn.ai description: International site security: [] tags: - name: AI Services - name: AI Services/Video Generation - name: AI Services/Image Generation - name: Channel Management - name: Channel Management/Accounts - name: Channel Management/Publishing - name: Channel Management/Platforms - name: Channel Management/Works - name: Channel Management/Account Groups - name: Channel Management/Authorization - name: Asset Management - name: AI Services/Large Language Models paths: /api/v2/channels/douyin/open/offline-qr: post: tags: - Channel Management/Publishing summary: Create Douyin Check-in description: >- Create a Douyin offline check-in publish entry. The API key belongs to the integration partner; the person scanning the QR code does not need an AiToEarn account and does not need to authorize or bind a Douyin account in advance. Store `recordId`. You can display the server-generated `userAction.qrCodeUrl` directly or generate your own QR code from `userAction.shortLink` to customize its size, styling, or logo. Scanning the code opens the Douyin App, where the user confirms and completes publishing. `schemeUrl` can be used by a mobile page to attempt to open the Douyin App directly. The initial `status` is always `8`, which means user action is required and does not indicate success. After publishing completes, AiToEarn updates the publish record from the Douyin webhook. From the integration backend, use the same API key that created the record to call the existing `GET /api/v2/channels/publish/records/{recordId}` endpoint. The QR code and launch links expire; use `expiresAt` as the source of truth and create a new entry after expiration. Images and video cannot be mixed. Up to 12 JPG, JPEG, PNG, or BMP images are supported, with a maximum size of 20 MB each. One MP4, AVI, MKV, or MOV video is supported, with a maximum size of 1 GB and a maximum duration of 3,600 seconds. Each API key can call this endpoint up to 30 times per 60 seconds. operationId: DouyinOpenOfflineQrController_createOpenPublish_v2 parameters: [] requestBody: required: true content: application/json: schema: type: object properties: content: type: object description: Offline check-in publish content properties: title: type: string description: Title, up to 30 characters maxLength: 30 body: type: string description: >- Body text. Hashtags can be included using `#topic`, with up to 5 topics. The title and body excluding topics can contain up to 1,000 characters in total. media: type: array default: [] description: >- Image or video list containing at least one media item. Up to 12 images or one video is supported, and images and video cannot be mixed. items: type: object properties: url: type: string format: uri description: Media URL options: type: object description: Media handling options properties: adaptation: type: object description: Media format conversion options properties: imageFormat: description: Image and cover format conversion targets type: string enum: - 'off' - auto - jpeg - png - webp additionalProperties: false additionalProperties: false required: - url additionalProperties: false minItems: 1 maxItems: 12 cover: type: object properties: url: type: string format: uri description: Cover URL options: type: object description: Media handling options properties: adaptation: type: object description: Media format conversion options properties: imageFormat: description: Image and cover format conversion targets type: string enum: - 'off' - auto - jpeg - png - webp additionalProperties: false additionalProperties: false required: - url additionalProperties: false description: >- Optional video cover using a publicly accessible image URL. required: - media additionalProperties: false option: type: object description: TikTok publishing options properties: short_title: type: string maxLength: 12 description: Douyin short title, up to 12 characters cover_tsp: type: integer minimum: 0 description: Video cover timestamp in milliseconds download_type: type: integer enum: - 1 - 2 description: >- Download permission: 1 allows downloads and 2 disallows downloads private_status: type: integer enum: - 0 - 1 - 2 description: >- Visibility: 0 is public, 1 is private, and 2 is visible to friends poi_id: type: string description: Douyin location POI ID additionalProperties: false required: - content additionalProperties: false examples: video: summary: Video check-in value: content: title: Offline check-in body: 'Joining today''s event #OfflineCheckIn' media: - url: https://assets.example.com/check-in.mp4 cover: url: https://assets.example.com/check-in-cover.jpg option: short_title: Event check-in download_type: 1 private_status: 0 images: summary: Image check-in value: content: title: Store check-in body: 'Sharing today''s store visit #StoreVisit' media: - url: https://assets.example.com/check-in-1.jpg - url: https://assets.example.com/check-in-2.jpg option: poi_id: poi_xxx private_status: 0 responses: '200': description: >- The request has been processed by the service. Business success is determined by whether the response body has code === 0. content: application/json: schema: type: object properties: data: type: object properties: recordId: type: string description: AiToEarn publish record ID status: type: integer enum: - 8 description: >- Publish status. The initial value is always 8, meaning that the user must continue in the Douyin App. userAction: type: object description: >- Information required for the user to complete publishing on Douyin properties: shareId: type: string description: Douyin share ID schemeUrl: type: string description: Scheme URL used to open the Douyin App shortLink: type: string description: >- HTTPS launch short link that the integration can use to generate and customize its own QR code qrCodeUrl: type: string description: >- Server-generated QR code PNG Data URL that can be used directly as an img src expiresAt: type: string format: date-time description: Expiration time of the App launch links required: - shareId - schemeUrl - shortLink - qrCodeUrl - expiresAt additionalProperties: false required: - recordId - status - userAction additionalProperties: false code: type: integer description: >- Business status code. 0 means success; non-zero means a business error. message: type: string description: Response message. requestId: type: string description: Request ID. timestamp: type: integer description: Error response timestamp in Unix milliseconds. required: - code - message examples: success: summary: Success value: code: 0 message: Request succeeded data: recordId: 66c5f23ec7d9b89d23e6b102 status: 8 userAction: shareId: '7400000000000000000' schemeUrl: >- snssdk1128://openplatform/share?state=7400000000000000000 shortLink: https://aitoearn.cn/api/shortLink/abc123 qrCodeUrl: data:image/png;base64,iVBORw0KGgo... expiresAt: '2026-08-22T13:00:00.000Z' requestId: request_xxx security: - apikey-header-X-Api-Key: [] components: securitySchemes: apikey-header-X-Api-Key: type: apiKey in: header name: X-Api-Key description: >- Need to get API Key from AiToEarn. Click to go to ["API Key Obtaining Tutorial"](/en/use/api-key). ````