What is the transport method in SOAP?

Question

What is the transport method in SOAP?

Answer

Application layer and transport layers of a network are used by SOAP; HTTP and SMTP are the valid protocol of the application layer used as the transport for SOAP. HTTP is more preferable, since it works well with the current Internet infrastructure, in particular with firewalls. The SOAP requests can be sent using an HTTP GET method while the specification only contains details about HTTP POST.