Here you will find all those (thousends) of client implementations to test DAPS-DC.
This repository show a sample implentation done by node.js. Maybe not the hardest way to get a hint how things will get up and running...
Repository: nrd-ids-daps-dc-client-nodejs
Not the badest idea is to follow by watching its repository. At second it will be also a good idea to follow @LostInDataSpace. DAPS-DC has it's own hashtag: #nRD_ids_daps_dc.