（一）境外单位或者个人向境内单位或者个人销售服务、无形资产，在境外现场消费的服务除外；
Open up the app and connect to a server in Austria
，更多细节参见同城约会
Before diving into API design, it's worth asking: what is a stream?
So, how does OsmAnd use this structure to calculate your route at lightning speed? It's a multi-step process: