Object for storing cross-request state. This is unusual in that keys must be UUIDs, in order to prevent different clients setting the same key, and values are write-once, read-once to minimize the chances of state persisting indefinitely. The stash defines two operations; put, to add state and take to remove state. Furthermore, the view of the stash is path-specific; by default a request will only see the part of the stash corresponding to its own path.
A typical example of using a stash to store state might be:
@handler def handler(request, response): # We assume this is a string representing a UUID key = request.GET.first("id") if request.method == "POST": request.server.stash.put(key, "Some sample value") return "Added value to stash" else: value = request.server.stash.take(key) assert request.server.stash.take(key) is None return key
.. automodule:: wptserve.stash :members: