Pusher Batch Auth Plugin

A plugin for the Pusher JavaScript library (v4.1.x) that batches multiple private and presence channel authentication requests into a single HTTP call. Version 0.0.2 is the latest stable release, with low release cadence. It reduces network overhead when subscribing to many channels simultaneously by aggregating auth requests into one POST. Key differentiator: enables batch authentication endpoint (not available in Pusher's default authorizer). Requires Pusher JS 4.1+ and a server endpoint that handles batched requests.