When we walk into a brick-and-mortar store, completing a (non-cash) transaction involves swiping a card on the POS terminal, which captures our card information while sharing it with the relevant parties for authorization and completing the transaction. How to [create a payment gateway](https://appinventiv.com/blog/how-to-create-a-payment-gateway/)? A snapshot of a payment gateway development process, let us examine in a step-by-step guide how to approach the development of a custom payment gateway. 1. Research and ideate 2. Develop the infrastructure 3. Implement fraud detection measures 4. Obtain licenses and certifications 5. Integrate with the payment processing network 6. Test and launch your payment gateway