arazzo: 1.0.1
info:
  title: Efí Pix Charge Revise
  summary: Create a Pix charge under a fixed txid, check its status, and revise it while still active.
  description: >-
    A charge-correction flow for Efí Pay Pix. The workflow authenticates, creates
    an immediate Pix charge under a caller-supplied txid (PUT cob), reads the
    charge back, and branches on its status: while the charge is still ATIVA it
    patches the charge to a revised amount, and if the charge is no longer active
    it ends without modifying it. This guards updates so a paid or expired charge
    is never altered. 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: efiPixApi
  url: ../openapi/efi-pix-openapi.yml
  type: openapi
workflows:
- workflowId: pix-charge-revise
  summary: Create a Pix charge by txid and revise its amount only while it is active.
  description: >-
    Authenticates, creates an immediate Pix charge under the supplied txid,
    details it, and patches a revised amount only when the charge is still ATIVA.
  inputs:
    type: object
    required:
    - clientId
    - clientSecret
    - txid
    - amount
    - pixKey
    - revisedAmount
    properties:
      clientId:
        type: string
        description: The OAuth2 client_id issued for the Efí Pay account.
      clientSecret:
        type: string
        description: The OAuth2 client_secret issued for the Efí Pay account.
      txid:
        type: string
        description: The 26-35 char transaction id to register the charge under.
      amount:
        type: string
        description: The original charge amount in BRL as a decimal string.
      pixKey:
        type: string
        description: The receiving Pix key (chave) the charge is credited to.
      revisedAmount:
        type: string
        description: The corrected charge amount in BRL as a decimal string.
  steps:
  - stepId: authenticate
    description: >-
      Exchange the client_id and client_secret for an OAuth2 access token using
      the client_credentials grant required by the Pix API.
    operationId: pixAuthorize
    requestBody:
      contentType: application/json
      payload:
        grant_type: client_credentials
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      accessToken: $response.body#/access_token
  - stepId: createCharge
    description: >-
      Create an immediate Pix charge under the supplied txid crediting the given
      Pix key for the original amount.
    operationId: pixCreateCharge
    parameters:
    - name: Authorization
      in: header
      value: Bearer $steps.authenticate.outputs.accessToken
    - name: txid
      in: path
      value: $inputs.txid
    requestBody:
      contentType: application/json
      payload:
        calendario:
          expiracao: 3600
        valor:
          original: $inputs.amount
        chave: $inputs.pixKey
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      txid: $response.body#/txid
      status: $response.body#/status
  - stepId: detailCharge
    description: >-
      Read the charge back by txid and branch on its status so only an active
      charge is revised.
    operationId: pixDetailCharge
    parameters:
    - name: Authorization
      in: header
      value: Bearer $steps.authenticate.outputs.accessToken
    - name: txid
      in: path
      value: $steps.createCharge.outputs.txid
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
    onSuccess:
    - name: chargeActive
      type: goto
      stepId: reviseCharge
      criteria:
      - context: $response.body
        condition: $.status == "ATIVA"
        type: jsonpath
    - name: chargeNotActive
      type: end
      criteria:
      - context: $response.body
        condition: $.status != "ATIVA"
        type: jsonpath
  - stepId: reviseCharge
    description: >-
      Patch the active charge to the revised amount, leaving the rest of the
      charge intact.
    operationId: pixUpdateCharge
    parameters:
    - name: Authorization
      in: header
      value: Bearer $steps.authenticate.outputs.accessToken
    - name: txid
      in: path
      value: $steps.createCharge.outputs.txid
    requestBody:
      contentType: application/json
      payload:
        valor:
          original: $inputs.revisedAmount
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      revisedStatus: $response.body#/status
      revisedValue: $response.body#/valor/original
  outputs:
    txid: $steps.createCharge.outputs.txid
    status: $steps.detailCharge.outputs.status
    revisedValue: $steps.reviseCharge.outputs.revisedValue