Member Avatar for Lilantha

Cold you any one can explain to me how to add payment method to my ecommerce shopping cart and explain me backend process of payment

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Short, practical plan useful to and others who asked how the backend works and how to add a payment method.

Decide integration style and provider first. Hosted checkout (gateway-hosted pages or hosted fields) keeps card data off your servers and greatly reduces PCI scope; direct/API integration gives full control but requires secure handling or tokenization. Also choose between an aggregator (Stripe, PayPal/Braintree, Square) that gives an all-in-one onboarding + merchant account, or a separate gateway plus acquiring bank (Authorize.Net + merchant account) which can be better for high volume.

Concise backend flow (what the server actually does): client collects payment data via hosted fields or a form; the gateway returns a token/nonce (preferred) or the server posts the card data to the gateway over TLS; the server calls the gateway with its secret API key to create a payment intent/charge; the gateway routes the request through processor/card networks to the issuer; the gateway returns auth/decline and later sends webhooks for capture, settlement, refunds and disputes. Plan for 3-D Secure / SCA flows and asynchronous webhook handling.

Quick checklist and troubleshooting tips: use sandbox/test keys first; implement client-side tokenization (hosted fields/Elements) to reduce PCI; keep secret keys in environment variables only; add idempotency keys to prevent double charges; log gateway responses and inspect dashboard logs; test 3DS and decline scenarios with gateway test cards; verify currency and AVS/CVC handling if charges fail.

This expands on ’s flow by adding tokenization, webhooks and practical build steps; it also complements and ’s PayPal notes and ’s advice to use experienced help when doing a custom integration. If code was posted by , confirm it never exposes secret keys to the client and supports sandbox testing and webhook verification.

POST /charge
Body: { token: "tok_xxx", amount: 1999, currency: "USD" }

Server:
- validate order
- gateway.charge(apiKey, { token, amount, currency })
- if requires_action -> handle 3DS
- on success -> mark order paid

Recommended Answers

All 7 Replies

Member Avatar for rjdoll99

this is the code in which you can get the payment method

Member Avatar for Lilantha

No I want understand how is payment gatway work and process of that

Member Avatar for bundrell

paypal busniess account is best for you it will provide you all codes..

Member Avatar for ShuchitaG

You can use PayPal, WebMoney, Skrill, Authorize.Net or the Offline Payment option with your Online Store shopping cart.

After connecting your Online Store to your merchant account, all payments made by your buyers will appear in your merchant account.

To connect your merchant account to your store, click on Payment & Currency from Manage Store and choose a payment method from the drop-down menu. It is not possible to use a third party merchant.

Member Avatar for James Gordon

For the best result, you should hire experienced developers. Bcoz, they can develop and integrate suitable payment module with your website. According to me, PayPal, Authroize.Net, and First Data are the excellent payment gateways which offer secure payment transaction services.

Member Avatar for John Matthew

Thousands of payment modules are on the Internet. Choose any one of them as per your business requirement.

Member Avatar for Mpreet

A payment gateway facilitates the transfer of information between a payment portal (such as a website, mobile phone) and the Front End Processor or acquiring bank. Here is a step by step guide detailing how Payment Gateways work:

  1. When a customer places an order on website by pressing “SUBMIT ORDER” and enter card details.
  2. If the order is via a website the customer's web browser encrypts the information to be sent b/w the browser and the merchant's webserver. This process is done by SSL(Secure Socket Layer) encryption.
  3. After that merchant forwards transaction details to their payment gateway. This is also another SSL Encrypted connection.
    *The payment gateway forwards transaction info. To the payment processor used by the merchant's acquiring bank.
    *The payment processor forwards the transaction info to the card association(like VISA, MASTERCARD etc).
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