Savon

Automatically generates client methods from WSDL files, reducing boilerplate code—as shown in the README where client.operations lists available methods based on WSDL.

Supports both hash-based and XML builder syntax for constructing SOAP messages, accommodating different coding styles, as highlighted in the key features.

Provides structured error handling for SOAP faults and HTTP errors, making debugging easier, which is a key feature mentioned in the documentation.

Includes built-in support for WS-Security username token and timestamp headers, essential for secure enterprise SOAP services, as noted in the features list.