Merge File Storage Link an Account

arazzo: 1.0.1
info:
  title: Merge File Storage Link an Account
  summary: Create a Merge Link token for the File Storage category, exchange the public token for an account token, and confirm the linked file storage provider.
  description: >-
    The foundational Merge integration pattern for the File Storage category.
    The workflow creates a single-use Link token from your end user's details,
    exchanges the public token returned by the Merge Link frontend flow for a
    durable account token, and reads the linked account details to confirm the
    integration and surface the connected file storage provider. Every step
    spells out its request inline so the flow can be read and executed without
    opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: fileStorageApi
  url: ../openapi/merge-file-storage-api-openapi.yaml
  type: openapi
workflows:
- workflowId: link-filestorage-account
  summary: Link a new end user to a file storage provider and obtain a usable account token.
  description: >-
    Creates a Link token scoped to the file storage category, exchanges the
    public token produced by Merge Link for an account token, and verifies the
    linked account by reading its details.
  inputs:
    type: object
    required:
    - authorization
    - endUserEmailAddress
    - endUserOrganizationName
    - endUserOriginId
    - publicToken
    properties:
      authorization:
        type: string
        description: Production access token with the required "Bearer " prefix.
      endUserEmailAddress:
        type: string
        description: The end user's email address, used purely for identification.
      endUserOrganizationName:
        type: string
        description: The end user's organization name.
      endUserOriginId:
        type: string
        description: A unique identifier for the end user in your own database.
      publicToken:
        type: string
        description: The public token returned by the Merge Link frontend after the user finishes linking.
  steps:
  - stepId: createLinkToken
    description: >-
      Create a single-use Link token scoped to the file storage category from
      the end user's identifying details.
    operationPath: '{$sourceDescriptions.fileStorageApi.url}#/paths/~1filestorage~1v1~1link-token/post'
    parameters:
    - name: Authorization
      in: header
      value: $inputs.authorization
    requestBody:
      contentType: application/json
      payload:
        end_user_email_address: $inputs.endUserEmailAddress
        end_user_organization_name: $inputs.endUserOrganizationName
        end_user_origin_id: $inputs.endUserOriginId
        categories:
        - filestorage
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      linkToken: $response.body#/link_token
      integrationName: $response.body#/integration_name
  - stepId: exchangePublicToken
    description: >-
      Exchange the public token returned by the Merge Link frontend flow for a
      durable account token used on all subsequent data requests.
    operationPath: '{$sourceDescriptions.fileStorageApi.url}#/paths/~1filestorage~1v1~1account-token~1{public_token}/get'
    parameters:
    - name: public_token
      in: path
      value: $inputs.publicToken
    - name: Authorization
      in: header
      value: $inputs.authorization
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      accountToken: $response.body#/account_token
      linkedAccountId: $response.body#/id
  - stepId: confirmAccount
    description: >-
      Read the linked account details to confirm the integration completed and
      surface the connected file storage provider.
    operationPath: '{$sourceDescriptions.fileStorageApi.url}#/paths/~1filestorage~1v1~1account-details/get'
    parameters:
    - name: Authorization
      in: header
      value: $inputs.authorization
    - name: X-Account-Token
      in: header
      value: $steps.exchangePublicToken.outputs.accountToken
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      integration: $response.body#/integration
      status: $response.body#/status
  outputs:
    accountToken: $steps.exchangePublicToken.outputs.accountToken
    linkedAccountId: $steps.exchangePublicToken.outputs.linkedAccountId
    integration: $steps.confirmAccount.outputs.integration
    status: $steps.confirmAccount.outputs.status