Which type of web services have you used more often: SOAP or REST?

REST web services are most commonly used in practice because they are easier to implement and integrate, use standard HTTP methods (GET, POST, PUT, DELETE), and are well-suited for interaction between client and server.

SOAP, on the other hand, is used in more formalized and enterprise systems where strict typing and security are important, but it is more complex and heavyweight.

For example, when testing REST API, responses in JSON format can be easily checked, whereas SOAP requires working with XML and complex WSDL descriptions.