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Integrating the HUB2 payment API requires more work than the transfer API, because the end customer has to take part in the process.

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Payment lifecycle (asynchronous circuit)

This is the usual way the HUB2 API handles payments. It may vary depending on the scenario and the provider.

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Payment lifecycle (synchronous circuit)

In this circuit, the payment attempt (POST /payment-intents/{id}/payments/sync) waits for the provider response before returning. Merchants receive the redirection link directly in the response, without subscribing to a webhook or polling.
This circuit is not enabled by default: HUB2 Support enables it per merchant and per provider. Contact HUB2 Support for more information.
Legend:
  • PI: payment intent
  • P: payment (the payment attempt)