Stripe or Razorpay Payment Gateway Integration with Streamlit App

My project is to integrate a Stripe or Razorpay payment gateway with a Streamlit App using Python and JS. The highest level of security is required, as this is a payment gateway integration. I am looking for someone with experience in API Payment Gateway integrations with StreamLit App, who can work on the development and provide guidance as needed. The successful freelancer must have a strong understanding of Python/JS and have prior experience with API Payment Gateway integrations of Stripe or Razorpay with StreamLit app. The integrated app should be running in the following manner - once a button is pressed in the App the payment gateway starts and accepts the payment and then run a set of code to provide an output. It needs to be tested with some payment instruments whether the integration is happening or not. A test or demo Streamlit app will be provided or consultant can create also and he needs to integrate the Payment Gateway (preferably Stripe - Stripe API Key will be provided. Expert may integrate Razorpay also if it is convenient and in that case fresh account to be opened). Consultant needs to show that his integration is working. If it works, the process needs to be guided and I shall replicate the process for my actual apps (to be done myself). I look forward to having a successful collaboration that achieves great results!