SOAP and RESTful microservices have the following differences:
SOAP |
RESTful microservices |
An XML-based message protocol. |
An architectural style. |
Uses WSDL for communication between the consumer and the provider. |
Use XML or JSON to send and receive data. |
Invokes services by calling the RPC method. |
Simply call services via the URL path. |
The transfer is over HTTP. Also uses other protocols, such as SMTP or FTP. |
The transfer is over HTTP only. |
SOAP-based reads can't be cached. |
RESTful microservice reads can be cached. |
SOAP is not very scalable |
RESTful microservices are very scalable. |
SOAP is more suitable for enterprise systems and high-security systems, such as a banking system. |
RESTful microservices are suitable for all types of systems apart from where high security and high reliability is critical... |