Open API is publicly available interface for developers to access software applications. No universally accepted definition exists, may refer to restricted or open data APIs. Open APIs are free to access by consumers, unlike private APIs
Discord API consists of HTTPS/REST and WebSocket layers. API supports OAuth2 authentication and user/bot tokens. Uses TLS 1.2 encryption for all HTTP-layer services
New SOAP project can be created by adding WSDL URL during or after project creation. WSDL URL can be from any web service hosted on a server. Good internet connection is required for WSDL processing
SoapUI is the world's leading open-source testing platform for web services. Released by Eviware in 2005, acquired by SmartBear in 2011. Supports multiple protocols including SOAP, REST, HTTP, and JDBC
Spring created SOAP web service to fetch country data using contract-first approach. Service implemented using XML schema and jaxb2-maven-plugin. Four main classes: CountryEndpoint, CountryRepository, WebServiceConfig, Application
Tutorial demonstrates building SOAP client using JAX-WS RI in Java 8 and 11. Web service fetches country data based on name. Service exposes through interface CountryService. WSDL provides service description and generates client implementation