openapi: 3.0.3
info:
  title: OpenCart REST Affiliates Customer API
  description: 'The OpenCart REST API enables external applications to communicate with a self-hosted OpenCart store. It provides endpoints for managing the shopping cart, customers, orders, addresses, shipping methods, payment methods, subscriptions, and affiliates. Authentication is performed by submitting API credentials to receive a session token, which must accompany subsequent requests. IP-allowlist enforcement is applied at the store level.

    '
  version: '4.0'
  contact:
    name: OpenCart Developer Documentation
    url: https://docs.opencart.com/developer/
  license:
    name: GNU GPL v3
    url: https://github.com/opencart/opencart/blob/master/LICENSE.md
servers:
- url: https://yourstore.com/index.php?route=api
  description: OpenCart store API base URL (replace yourstore.com with your store domain)
security:
- apiToken: []
tags:
- name: Customer
  description: Customer session and profile management
paths:
  /customer:
    post:
      operationId: setCustomer
      summary: Set customer for the current session
      description: 'Associates a customer with the current API session. Validates customer existence, group, name, email, telephone, and custom fields.

        '
      tags:
      - Customer
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/CustomerInput'
      responses:
        '200':
          description: Customer set or validation errors
          content:
            application/json:
              schema:
                oneOf:
                - $ref: '#/components/schemas/SuccessResponse'
                - $ref: '#/components/schemas/CustomerErrorResponse'
components:
  schemas:
    SuccessResponse:
      type: object
      properties:
        success:
          type: string
          description: Localised success message
          example: 'Success: You have modified your shopping cart!'
    CustomerErrorResponse:
      type: object
      properties:
        error:
          type: object
          properties:
            warning:
              type: string
            customer_group:
              type: string
            firstname:
              type: string
            lastname:
              type: string
            email:
              type: string
            telephone:
              type: string
    CustomerInput:
      type: object
      required:
      - customer_id
      - customer_group_id
      - firstname
      - lastname
      - email
      properties:
        api_token:
          type: string
        customer_id:
          type: integer
          example: 1
        customer_group_id:
          type: integer
          example: 1
        firstname:
          type: string
          maxLength: 32
          example: John
        lastname:
          type: string
          maxLength: 32
          example: Doe
        email:
          type: string
          format: email
          example: john.doe@example.com
        telephone:
          type: string
          minLength: 3
          maxLength: 32
          example: +1 555-0100
        custom_field:
          type: object
          additionalProperties: true
  securitySchemes:
    apiToken:
      type: apiKey
      in: query
      name: api_token
      description: Session token obtained from the /login endpoint
externalDocs:
  description: OpenCart Admin API Documentation
  url: https://docs.opencart.com/admin-interface/system/users/api