General Description

Culqi Enrollment Gateway converts Moodle into a sellable platform: pay and get automatically enrolled, with security controls and traceability.

Technical Implementation

  1. Payments and Webhooks

    • Flow checkout → payment intent → confirmation webhook.
    • Webhook signature validation and replay protection by timestamp/nonce.

  2. Security

    • Sensitive card data is never stored in Moodle.
    • Amount/currency/product validation before enrolling.
    • Idempotency: a confirmed transaction does not execute double enrolment.

  3. Operation

    • Logs panel for reconciliation (paid / pending / failed).
    • Retries via cron for temporary failures.

Main Features

  1. Immediate purchase and access
  2. Evidence and audit
  3. Ready to scale