PayIn Process
This comprehensive PayIn process covers card creation, billing address management, offer creation and update, as well as payment execution and status checking. It ensures a secure and transparent flow for users engaging in cryptocurrency transactions with fiat funds.
The goal of PayIn is to facilitate the purchase of cryptocurrency using fiat funds.
To perform the PayIn process, it is necessary to obtain the
KYC_0using the PATCH Update Customer Profile endpoint.
Step 1: Adding a new card and Billing Address
The user enters information for a new card, including card number, cardholder name, expiration date and billing address.
The system sends a POST /v3/payin/card request to the server with information about the new card and billing address.
Upon successful addition, the server returns a 200 OK code, confirming that the card and billing address have been successfully added.
Step 2: Retrieving Data for Offer Creation
To create an offer to purchase cryptocurrency, it's necessary to obtain the current exchange rate for the desired currency pair.
The system sends a request GET /v3/payin/data to the server to retrieve data about current exchange rates and other parameters, such as minimum and maximum amounts.
Step 3: Creating an Offer without Immediate Fund Deduction
The user creates an offer for payment without an immediate fund deduction, specifying the amount, currency, and other parameters.
The system sends a POST /v3/payin/offer request to the server with information about the created offer.
The server returns information about the created offer, such as identifier, expiration date, exchange rate, and fees.
Step 4: Updating an Existing Offer without Immediate Fund Deduction
The user updates parameters of an existing offer, such as amount, currency, or other details.
The system sends a request PUT /v3/payin/offer/{offerId} to the server to update the offer.
Upon successful update, the server returns information about the offer.
Step 5: Executing Offer Payment
The user makes a payment by providing details and other necessary information.
The system sends a request POST /v3/payin/pay/{offerId} to the server to execute the payment using the offer.
The server returns information about the transaction status, URL for redirecting the user, and other details.
Step 6: Checking Payment Status
The system performs a request GET /v3/payin/pay-callback to check the current payment status.
The server returns information about the payment status, amount, currency, card number, and other transaction details.
Updated 7 months ago