Платёжный шлюз
Payment Gateway
Payment gateway is the technical layer that receives payment data from a website or app, passes it for processing to an acquirer or processing provider, and returns the transaction result.
What is Платёжный шлюз (Payment Gateway)?
## How it works
A payment gateway receives a payment request from a customer or website: amount, currency, card details or wallet data. It encrypts and validates the data, checks the format, forwards the request to processing or the acquirer, and returns a status to the merchant: approved, declined, or pending confirmation. Gateways often also handle 3DS authentication and card tokenization.
## Where it is used
In fintech and payments, the gateway sits between the merchant and the PSP or acquiring bank. In gambling and betting, it is used for deposits and withdrawals at online casinos and bookmakers, where cards, e-wallets and APMs are all needed. Gateways are often connected through orchestration to route traffic between several providers.
## What it affects
Gateway settings determine payment conversion, decline rate and how quickly players receive withdrawals. The quality of the 3DS flow, correct response codes and timely retries directly affect the approval rate. Integration errors often lead to duplicate charges and a rise in chargebacks.
## Common mistakes
Typical problems include no handling of timeouts and retries without idempotency, storing excess card data outside the PCI DSS scope, no monitoring of declines by BIN and country, and reliance on a single provider with no backup route. Before integrating, agree on the MCC, descriptor and merchant limits with the provider.
FAQ
How is a payment gateway different from a PSP?
A gateway transmits and receives payment data, while a PSP usually includes a gateway, a merchant account and some payment acceptance functions. In many cases the terms are used interchangeably, but a PSP offers a broader set of services.
Do I need a separate gateway if I already have acquiring?
Acquiring by itself handles settlement with the bank, while the gateway provides the technical transmission of requests and data protection. Without a gateway, integration with the bank is usually more complex and less secure.
What should I check when choosing a gateway in a high-risk vertical?
Support for the required MCCs, 3DS availability, routing capabilities, transparency of decline reporting, and chargeback handling terms. Check the provider's KYC and AML requirements.