Add caching functionality

[stephan271]

Issue Name

AddCachingFunctionality

Summary

To improve performance some level of caching helps . The idea is to implement this at the nginx loadbalencer level

Current Behaviour

No caching functionality

Expected Behaviour

Identical API calls from the same user are cached at the intermediate nginx level for some time period to be defined (order of minute(s))

Extra Details

https://docs.nginx.com/nginx/admin-guide/content-cache/content-caching/