This project provides microservice to load/store UserContext instances from Waltz

This microservice has very simple API:

1. GET user-context/cache?id=<userName> -- returns serialized in base64, gzipped UserContext instance or null
2. POST user-context/cache?id=<userName>&data=<base64 UserContext> -- stores data
3. POST user-context/cache?id=<userName> -- deletes data

Refer to waltz-user-context-plugin for js API