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The payment processor forwards the response to the payment gateway, who forwards it to the website. The entire process typically takes 2–3 seconds. [3] The merchant then fulfills the order and the above process can be repeated but this time to "clear" the authorization by consummating (e.g. fulfilling) the transaction.
Instant payment notification (IPN) is a method for online retailers to automatically track purchases and other server-to-server communication in real time. This allows E-commerce systems the opportunity to store payment transactions, order information and other sales internally.
A payment service provider (PSP) is a third-party company that allows businesses to accept electronic payments, such as credit card and debit card payments. PSPs act as intermediaries between those who make payments, i.e. consumers , and those who accept them, i.e. retailers .
Once the payment processor has received confirmation that the credit card details have been verified, the information is relayed back via the payment gateway to the merchant, who will then complete the payment transaction. If verification is denied by the card association, the payment processor will relay the information to the merchant, who ...
As of 21 January 2025 (two months after PHP 8.4's release), PHP is used as the server-side programming language on 75.0% of websites where the language could be determined; PHP 7 is the most used version of the language with 47.1% of websites using PHP being on that version, while 40.6% use PHP 8, 12.2% use PHP 5 and 0.1% use PHP 4. [19]
The following is a list of notable online payment service providers and payment gateway providing companies, their platform base and the countries they offer services in: (POS -- Point of Sale ) Company
RuPay E-com is the payment gateway that facilitates online transactions by RuPay card holders. It supports one click payments, Seamless APIs, and Connected Checkout, and also offers additional payment options such as subscription payments, EMI, online credit card bill payments and balance transfers.
The process of joining is called integration. [3] As an example, consider a weather sensor that offers an API. When a certain message is transmitted to the sensor, it will detect the current weather conditions and reply with a weather report. The message that activates the sensor is an API call, and the weather report is an API response. [7]