Salla OAuth Token Exchange

arazzo: 1.0.1
info:
  title: Salla OAuth Token Exchange
  summary: Exchange an authorization code for an access token and confirm the merchant identity.
  description: >-
    The bootstrap flow every Salla app runs after a merchant grants
    permission. The merchant is first sent to the authorization endpoint, the
    returned authorization code is exchanged for an access and refresh token
    pair, and the resulting token is used to read the authenticated merchant
    and store profile. Each step spells out its request inline so the OAuth
    handshake can be read and executed without opening the underlying OpenAPI
    description.
  version: 1.0.0
sourceDescriptions:
- name: appsApi
  url: ../openapi/salla-apps-api-openapi.yml
  type: openapi
workflows:
- workflowId: oauth-token-exchange
  summary: Turn an authorization code into an access token and resolve the merchant.
  description: >-
    Initiates the merchant authorization redirect, exchanges the returned
    authorization code for an access and refresh token, and then reads the
    authenticated merchant profile to confirm the grant succeeded.
  inputs:
    type: object
    required:
    - clientId
    - clientSecret
    - redirectUri
    - authorizationCode
    properties:
      clientId:
        type: string
        description: The OAuth client id issued to the Salla app.
      clientSecret:
        type: string
        description: The OAuth client secret issued to the Salla app.
      redirectUri:
        type: string
        description: The redirect URI registered for the app.
      scope:
        type: string
        description: Space-delimited scopes requested (e.g. "offline_access orders.read").
      state:
        type: string
        description: Opaque value echoed back on the authorization redirect.
      authorizationCode:
        type: string
        description: The authorization code returned to the redirect URI.
  steps:
  - stepId: authorizeApp
    description: >-
      Send the merchant to the authorization endpoint to grant the requested
      store data scopes; the endpoint redirects back with an authorization
      code.
    operationId: authorize
    parameters:
    - name: client_id
      in: query
      value: $inputs.clientId
    - name: response_type
      in: query
      value: code
    - name: redirect_uri
      in: query
      value: $inputs.redirectUri
    - name: scope
      in: query
      value: $inputs.scope
    - name: state
      in: query
      value: $inputs.state
    successCriteria:
    - condition: $statusCode == 302
  - stepId: exchangeToken
    description: >-
      Exchange the authorization code for an access token and a refresh token
      using the authorization_code grant.
    operationId: token
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        client_id: $inputs.clientId
        client_secret: $inputs.clientSecret
        grant_type: authorization_code
        code: $inputs.authorizationCode
        redirect_uri: $inputs.redirectUri
        scope: $inputs.scope
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      accessToken: $response.body#/access_token
      refreshToken: $response.body#/refresh_token
      expiresIn: $response.body#/expires_in
  - stepId: getMerchant
    description: >-
      Read the authenticated merchant and store profile using the freshly
      issued access token to confirm the grant succeeded.
    operationId: getUserInfo
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $steps.exchangeToken.outputs.accessToken"
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      merchantId: $response.body#/data/id
      merchantName: $response.body#/data/name
  outputs:
    accessToken: $steps.exchangeToken.outputs.accessToken
    refreshToken: $steps.exchangeToken.outputs.refreshToken
    merchantId: $steps.getMerchant.outputs.merchantId