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When the token payment is executing by button in a mobile app, the following actions are performed:

1. The buyer selects the product or service in the store mobile app and presses the Pay button.
2. An encrypted packet with payment data and a token is generated by accessing the SDK of Mir Pay API.
3. The SDK of the provider conducts the required payment authorization by the buyer on the mobile device (PIN / fingerprint).
4. The encrypted packet with payment data and a token is transferred to the TokenPay payment service on the side of IPS Assist.
5. IPS Assist decrypts the package and performs payment with a token.
6. IPS Assist returns the payment results to the mobile app.

You have to use the Mir Pay SDK if you don't want to use SDK Assist in the online store mobile app, for creatation of the encrypted package with payment information. The created encrypted packet with payment details then must be transferred to the IPS Assist through the TokenPay service.

Sequence diagram of token payment

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