Payment gateway

The payment gateway only provides switching between the buyer and the seller. Payment systems are responsible for accepting funds.

In most cases, these are different systems, but large companies combine the two services into one, for example, Paypal. It is a payment system and at the same time provides secure data transfer.

Principle of operation

The payment gateway works as follows. A client orders a product in an online store and goes to the payment page. Then enters bank card details on the site of the payment system. The gateway transmits the received information to the acquiring bank.

Then the bank sends an authorization request to one of the international payment systems (Mastercard, Visa). It confirms the payment by sending an authorization code through the acquiring bank.

At this point, the user receives an SMS from the bank whose card is used to make the payment. He enters the numbers on the site and receives confirmation of a successful operation.

The process itself takes a few seconds, but delays are possible. They occur due to the large number of simultaneous requests that come through the payment gateway.

Translated with DeepL.com (free version)

Advantages

• Full automation and fault tolerance. This is achieved by integrating several gateways on the site.
• The mode of operation is 24*7*365.
• Information is transmitted via HTTPS protocol and encrypted with different keys. Users receive a reliable service that does not transfer data to third parties.
• Consumers of payment systems do not buy equipment and specialized software. The providers are responsible for this.
• Payment and bank card data is only shared with the gateway, not the merchant.

The payment gateway is part of a process called online payment. It is responsible for the reliability and security of the data transfer between the buyer and the merchant. All information is encrypted and is not available to third parties.

When choosing a service, it is necessary to focus on the platform with which the online store works. It supports only certain types of gateways. In the future, the number can be increased or reduced.