The service endpoint of an ECWP service is ecwp[s]://{domain}[:{port}]/ecwp/{instancename}/{productname}/{filename}.

You can find the full list of endpoints in LuciadFusion here.

ECWP clients expect that the server is running at the root of the domain. Therefore, you must configure any LuciadFusion instance running ECWP services to be served on the server root path. In practice, this means that you must leave the server.servlet.context-path property unchanged.