How do I access the payment gateway directly
In simplified terms, a payment gateway is the connection of an online shop to a bank account.
The payment gateway, also payment gateway, is the interface between a merchant and the bank or credit card provider. In addition, all financial transactions are processed on a technical level. Often terms such as payment processor or even payment provider are used instead of payment gateway.
What is the point of a payment gateway?
A payment gateway is used as an intermediary between a merchant, the payer and the processor. The implementation is carried out virtually for online shops or as a physical terminal (POS). In shop systems, a payment gateway is the most important part of the shop plug-in, as this is where the connection to the payment service provider is usually established.
When processing transactions, the payment gateway offers fraud prevention measures such as an AVS (address verification system) or querying the CVC (card validation code) etc. Basically, a payment gateway should work encrypted via SSL (Secure Socket Layer) and ideally a certification according to PCI: DSS as a data security standard.
Other useful and important functions are the processing of recurring payments and the mapping of a payment history.
How does a payment gateway work?
If a buyer selects items in an online shop and would like to pay for them e.g. by credit card, the order is placed via the shop's website. This order is then encrypted and forwarded to the payment gateway. The information required for payment is transferred directly without entering the retailer's databases. After transmission to the payment gateway, the information is encrypted again and forwarded to the acquirer. To authorize the payment, the acquirer sends the payment data to the buyer's card-issuing bank.
By processing the transaction via the payment gateway of a payment service provider, as described above, the merchant has the option of outsourcing the complex PCI-DSS compliance to a payment service provider, as this is quite time-consuming and costly.
If the transaction was successfully checked, the authorization is returned to the interface within a fraction of a second and the payment has been made.
Who provides or operates a payment gateway?
A payment gateway is usually provided by acquirers. It is normally operated by Application Service Providers (ASP). Provision is possible online as well as offline.
For an online retailer, a partnership with a payment service provider is often the clearest and most cost-effective solution, as this provider works closely with acquirers, banks and shop developers and can offer all services from a single source.
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