Temenos Transact Originate Loan Arrangement

arazzo: 1.0.1
info:
  title: Temenos Transact Originate Loan Arrangement
  summary: Create a borrower party and originate a loan arrangement for them.
  description: >-
    Loan origination flow in Temenos Transact. The workflow creates the
    borrower as a customer party, then creates a loan arrangement specifying
    principal, currency and term against a loan product. Finally it reads the
    loan back through the list endpoint filtered to the borrower to confirm the
    arrangement is booked. Each step inlines its request so the chain is
    self-describing.
  version: 1.0.0
sourceDescriptions:
- name: transactApi
  url: ../openapi/temenos-transact-openapi.yml
  type: openapi
workflows:
- workflowId: originate-loan-arrangement
  summary: Onboard a borrower and originate a loan arrangement in Temenos Transact.
  description: >-
    Creates the borrower party, originates a loan arrangement with the supplied
    principal and term, and confirms it by listing the customer's loans.
  inputs:
    type: object
    required:
    - lastName
    - productId
    - currency
    - principalAmount
    - term
    properties:
      customerType:
        type: string
        description: Customer classification (INDIVIDUAL or CORPORATE).
      firstName:
        type: string
        description: Borrower first name.
      lastName:
        type: string
        description: Borrower last name or company name.
      productId:
        type: string
        description: Loan product identifier.
      currency:
        type: string
        description: Loan currency in ISO 4217 format.
      principalAmount:
        type: number
        description: Requested loan principal amount.
      term:
        type: integer
        description: Loan term in months.
  steps:
  - stepId: createBorrower
    description: Create the borrower as a customer party record.
    operationId: createCustomer
    requestBody:
      contentType: application/json
      payload:
        customerType: $inputs.customerType
        firstName: $inputs.firstName
        lastName: $inputs.lastName
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      customerId: $response.body#/customerId
  - stepId: createLoan
    description: >-
      Originate a loan arrangement for the borrower with the supplied
      principal, currency and term.
    operationId: createLoan
    requestBody:
      contentType: application/json
      payload:
        customerId: $steps.createBorrower.outputs.customerId
        productId: $inputs.productId
        currency: $inputs.currency
        principalAmount: $inputs.principalAmount
        term: $inputs.term
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      loanId: $response.body#/loanId
      outstandingBalance: $response.body#/outstandingBalance
  - stepId: confirmLoans
    description: >-
      List the borrower's loan arrangements to confirm the new loan is booked
      against the customer.
    operationId: listLoans
    parameters:
    - name: customerId
      in: query
      value: $steps.createBorrower.outputs.customerId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      loans: $response.body#/body
  outputs:
    customerId: $steps.createBorrower.outputs.customerId
    loanId: $steps.createLoan.outputs.loanId
    outstandingBalance: $steps.createLoan.outputs.outstandingBalance