Web API (Application Interface) In simple terms, through the open Internet transport protocol, the service content provided by the standard interface to define, in order to carry out point-to-point service integration. Since the platform is based on the Web architecture, common technologies such as GET/POST, SOAP/HTTP, XML/RPC in HTTP are the main components of the architecture, and the defined data exchange is mostly above the application layer. Since HTTP is a transport protocol that is open to both external and internal enterprises, it has been developed and mature, so the HTTP-based Web API also reduces the barrier to integration of application services