openapi: 3.0.3
info:
  title: SimpleLegal Cost Codes Payments API
  description: The SimpleLegal API is organized around REST. The API has predictable, resource-oriented URLs and uses HTTP response codes to indicate API errors. It uses built-in HTTP features like HTTP authentication and HTTP verbs. JSON is returned by all API responses, including errors. The API supports PATCH methods throughout; POST can be used instead of PATCH for systems that cannot use PATCH. Pagination defaults to 25 items per page and can be configured with the page_size query parameter.
  version: '1.0'
  contact:
    name: SimpleLegal Support
    url: https://support.simplelegal.com/
  termsOfService: https://www.simplelegal.com/terms-of-service
servers:
- url: https://app.simplelegal.com/api/v1
  description: SimpleLegal Production API
security:
- basicAuth: []
tags:
- name: Payments
paths:
  /payments:
    get:
      operationId: list-payments
      summary: List Payments
      description: Retrieve a paginated list of invoice payments.
      tags:
      - Payments
      parameters:
      - name: page
        in: query
        schema:
          type: integer
          default: 1
        description: Page number.
      - name: page_size
        in: query
        schema:
          type: integer
          default: 25
        description: Results per page.
      - name: invoice_id
        in: query
        schema:
          type: string
        description: Filter payments by invoice ID.
      responses:
        '200':
          description: Paginated list of payments.
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/PaginatedResponse'
                - properties:
                    results:
                      type: array
                      items:
                        $ref: '#/components/schemas/Payment'
    post:
      operationId: create-payment
      summary: Create Payment
      description: Record a payment for an approved invoice.
      tags:
      - Payments
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Payment'
      responses:
        '201':
          description: Payment recorded successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Payment'
components:
  schemas:
    Payment:
      type: object
      description: A payment record for an approved invoice.
      properties:
        id:
          type: string
          description: Unique payment identifier.
        invoice_id:
          type: string
          description: ID of the invoice being paid.
        amount:
          type: number
          format: float
          description: Payment amount.
        currency:
          type: string
          description: ISO 4217 currency code.
        payment_date:
          type: string
          format: date
          description: Date payment was made.
        reference:
          type: string
          description: Payment reference number (check number, wire reference, etc.).
        created_at:
          type: string
          format: date-time
          description: Timestamp when the payment was recorded.
      required:
      - invoice_id
      - amount
      - payment_date
    PaginatedResponse:
      type: object
      properties:
        count:
          type: integer
          description: Total number of items matching the query.
        next:
          type: string
          nullable: true
          description: URL for the next page of results.
        previous:
          type: string
          nullable: true
          description: URL for the previous page of results.
        results:
          type: array
          description: The paginated list of results.
          items: {}
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: HTTP Basic Authentication using your SimpleLegal API credentials.