Digital Media Technology (Spring 2009) / Backend

You can save key-value pairs into the backend, and fetch saved values by key.

Parameters

user: Username. Put here your cs dept username. This isn't controlled, but it's not nice to cause trouble by messing with other users' stuff.
action: get, put or append. This nicely follows Java's HashMap API, with the extra append action.
key: The key to fetch or add.
value: The value to add (or update).

get: Fetch a saved value. value parameter is ignored here.
put: Add a key and for it, a value. If the key already has a value, it's deleted first. value parameter is obligatory (so you don't accidentally delete any values, when you meant to call get).
append: Append a new value after previous value for given key. The value is concatenated (string+string) after the previous value(s). value parameter is optional, but if it's missing, append doesn't really do anything.