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Knowledge base

Here you will find different articles on solutions and use cases based on REST API.

Concepts and background information

DESCRIPTION Article
Test cards Test cards
Transaction lifecycle Lifecycle
Cancellation and refund: what are the differences? Canceling a transaction
Automatic or manual validation, capture delay? Validation mode
Payment by token? 1-click payment
Wallet management Wallet management
Instant notification (IPN): concepts Background information on the IPN

RESTful Web Services

DESCRIPTION Article
Authentication method for REST Web Services Authentication phase
Instant notification (IPN): how to use it Using the IPN
Functioning and characteristics of RESTful API implementation Functioning of the API
Status reference and detailedStatus Transaction lifecycle

Embedded client (JavaScript)

This section describes different features of the JavaScript client.

DESCRIPTION Article
Transmit the fields based on your needs Use cases
Adding custom form fields Additional fields
Performing a single payment Start: single payment
Handling embedded form errors Error handling
Handling new payment attempts (retry) Handling retries
Event and method reference of the JS client JavaScript Client Reference
Pre-configured themes and personalization with CSS Themes
Switch from redirected form to embedded form Migrating the form with redirect

For PCI-DSS certified merchants

The activation of these features is subject to prior approval by Systempay.

DESCRIPTION Article
Creating a single transaction using a payment method Charge/CreatePayment PCI
Creating a transaction with strong authentication using a payment method Charge/CreatePayment PCI + 3DS
Authenticating a future transaction with 3D Secure version 1 or 2 PCI/Charge/Authenticate PCI
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