The concept of a payment gateway is a technology that collects and transfers payment data from the customer to the purchaser and then transfers the approval or rejection of payment back to the customer. The payment gateway safely validates the information of the customer's card, assures that the funds are available and essentially allows traders to get paid. It serves as a portal between the website of a trader and its acquirer. It encrypts confidential data of the credit card, ensuring that information is transferred safely from the user to the bank, through the merchant.
In other words, the payment gateway acts as an intermediary between the client and the merchant, ensuring that the process is carried out in a safe and timely manner. An online payment portal will make it easier for traders to incorporate the required tools. As a middleman during payment collection, the gateway handles the confidential card data of the client between the purchaser and the merchant. The payment gateway is the gatekeeper of the payment details of your client.