We are building a platform using microservice-based architecture. We are expecting 500K users in the next two years so for that we are thinking to use below technology stack as below:
Here, we found during concurrency analysis that node is faster than Fast API. We are confused that should we go with nodeJS or Fast API (asyncio). We have more expertise in python so more leaning towards it but we do not want to bias in the selection of technology which later on creates problems for us.
So we need guidance the shall we proceed with Python to handle millions of requests using - Fast API or we should go with node?
Or If you think we can have a better technology option then above then we are open for suggestions.