Starlette and Django are both great, but a lot of web devs prefer to work with a NodeJS backend.
I collaborated with @navjots to create a really simple boilerplate for deploying Fastai Image Classification models using NodeJS. The demo runs the Lesson 2 bear classifier out of the box.
You can expose your classifier with a little bit of copying and pasting and then build a beautiful front-end of your own design on top of the basic HTML provided. 
Read about it here:
Or go straight to the code.