I am working on my First react js project. I need to integrate Paytm payment gateway. I can't seem to find any proper documentation or procedure for React js on their website.
you can use the Paytm jsCheckout solution which has documentation on their website here.
The docs have a solution recommender too which can help show you which different options are available for the project you are trying to complete.
This is the link to the main docs page.
As for an example, there is a sample React integration you can find on GitHub.