The Redirect Adapter is essentially a pre-processor for Snowplow Tracker Protocol v2 above (although it doesn't use the TP2 code above directly).
Version 1 of the Tracker Protocol is GET only.
Version 1 of the Tracker Protocol is GET only. All data comes in on the querystring.
Version 2 of the Tracker Protocol supports GET and POST.
Version 2 of the Tracker Protocol supports GET and POST. Note that with POST, data can still be passed on the querystring.
The Redirect Adapter is essentially a pre-processor for Snowplow Tracker Protocol v2 above (although it doesn't use the TP2 code above directly).
The &u= parameter used for a redirect is converted into a URI Redirect entity and then either stored as an unstructured event, added to an existing contexts array or used to initialize a new contexts array.