This is a straightforward REST API for storing keys and values. The idea is that if you have a webapp on an embedded device that has read only memory In my case, the raspberry pi running my pyrelay box has its root filesystem mounted read-only for stability.
By using this and accessing it through CORS, I can add labels to the web UI without having to add read-write on my raspberry pi.
GET/:namespace/:key
Gets the key in the namespace.
PUT/:namespace/:key
Update or set the key in the namespace
GET/:namespace/:key
Get all of the keys in a namespace.