How to make a facets search in React JS with MongoDB?

I've built a backend API in NodeJS. which works pretty well for search as well as facetiting search.

Api Works like this:

http://localhost:4000/search?keyword=mobilephones&key=RAM&value=4GB

This API works for unlimited facets key and value as well.

Now, I've to build an e-commerce shop in React JS.which includes faceting search on multiple values LIke:RAM,Storage,CameraType with CHECKBOX

Now, I'm stuck here and have no logic to make things like this. Anyone have idea how do I build thing like this with explanation or code??

Note: I've full knowledge of aggregation framework. which I used to build backend API