Paystack Create and Validate Customer (KYC)

arazzo: 1.0.1
info:
  title: Paystack Create and Validate Customer (KYC)
  summary: Create a customer, resolve their BVN, then submit a bank-account identification to validate the customer.
  description: >-
    The customer KYC flow. A customer is created, the supplied BVN is resolved to
    confirm it returns identity details, and a bank-account identification is then
    submitted against the customer to complete validation. 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: customersApi
  url: ../openapi/paystack-customers-openapi.yml
  type: openapi
- name: verificationApi
  url: ../openapi/paystack-verification-openapi.yml
  type: openapi
workflows:
- workflowId: validate-customer-kyc
  summary: Onboard a customer and validate their identity with a bank account.
  description: >-
    Creates the customer, resolves the BVN, then validates the customer with
    bank-account identification.
  inputs:
    type: object
    required:
    - email
    - country
    - bvn
    - bank_code
    - account_number
    properties:
      email:
        type: string
        description: Customer's email address.
      first_name:
        type: string
        description: Customer's first name.
      last_name:
        type: string
        description: Customer's last name.
      country:
        type: string
        description: Two-letter country code of the identification issuer.
      bvn:
        type: string
        description: Customer's 11-digit Bank Verification Number.
      bank_code:
        type: string
        description: Bank code for the customer's account.
      account_number:
        type: string
        description: Customer's bank account number.
  steps:
  - stepId: createCustomer
    description: Create the customer that will be validated.
    operationId: customer_create
    requestBody:
      contentType: application/json
      payload:
        email: $inputs.email
        first_name: $inputs.first_name
        last_name: $inputs.last_name
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      customerCode: $response.body#/data/customer_code
  - stepId: resolveBvn
    description: Resolve the BVN to confirm it returns valid identity details.
    operationId: verification_resolveBvn
    parameters:
    - name: bvn
      in: path
      value: $inputs.bvn
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      bvnFirstName: $response.body#/data/first_name
      bvnLastName: $response.body#/data/last_name
  - stepId: validateCustomer
    description: Submit a bank-account identification to validate the customer.
    operationId: customer_validatte
    parameters:
    - name: code
      in: path
      value: $steps.createCustomer.outputs.customerCode
    requestBody:
      contentType: application/json
      payload:
        type: bank_account
        country: $inputs.country
        bvn: $inputs.bvn
        bank_code: $inputs.bank_code
        account_number: $inputs.account_number
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      validationMessage: $response.body#/message
  outputs:
    customerCode: $steps.createCustomer.outputs.customerCode
    validationMessage: $steps.validateCustomer.outputs.validationMessage