What is SOAP REST and XML-RPC?

What is SOAP REST and XML-RPC?

SOAP supports document-level transfer, whereas xml-rpc is more about values transfer, although it can transfer structures such as structs, lists, etc. xm-rpc is really about program to program language agnostic transfer. It primarily goes over http/https. SOAP messages can go over email as well. xml-rpc is more unixy.


Simple Objects Access Protocol (SOAP): making data available as services. SOAP is an XML-formatted, highly standardized web communication protocol. Released by Microsoft a year after XML-RPC, SOAP inherited a lot from it.

What does XML-RPC server accepts POST requests only mean?

If you get response back from the server saying, “XML-RPC server accepts POST requests only.” ( as shown in the following image) It means that the vulnerable xmlrpc. php file is enabled.


Differences between RPC and REST RPC is action-oriented. In contrast, REST is resource-oriented. REST utilizes HTTP methods GET, POST, PUT, PATCH, and DELETE to perform CRUD operations. However, RPC only supports GET and POST requests.

Is SOAP still used?

SOAP is still used in many big organisations. With built-in security and reliability functions, SOAP is a great choice for applications where security is more critical than performance. SOAP is highly extensible.

Do I need XML-RPC?

When Will I Need to Enable XMLRPC On My Site? If you use, or are planning to use, a remote system to post content to your site, you will need this feature enabled. Otherwise, you won’t be able to make remote connections through the system.

What is XML-RPC used for?

XML-RPC permits programs to make function or procedure calls across a network. XML-RPC uses the HTTP protocol to pass information from a client computer to a server computer. XML-RPC uses a small XML vocabulary to describe the nature of requests and responses.

Is RPC same as HTTP?

Remote-Procedure-Call (RPC), for example, is one style of creating web APIs. Representational State Transfer (REST), on the other hand, is another approach. Each style has a separate implementation. The confusion stems from the fact both styles communicate over HTTP.

Should I use RPC or REST?

RPC-based APIs are great for actions (that is, procedures or commands). REST-based APIs are great for modeling your domain (that is, resources or entities), making CRUD (create, read, update, delete) available for all of your data. REST is not only CRUD, but things are done through mainly CRUD-based operations.

Should I use SOAP or WSS For my Rest API?

You can have a REST application with no HTTP at all (mind, this is rare). So, if you have servers and consumers that are “comfortable” with SOAP, SOAP and WSS stack can serve you well. If you’re doing more ad hoc things and want to better interface with web browsers, then some lighter protocol over HTTP can work well also.

Is it possible to have a REST API without http?

You can have a REST application with no HTTP at all (mind, this is rare). So, if you have servers and consumers that are “comfortable” with SOAP, SOAP and WSS stack can serve you well.

Why is rest non-soap restricted to XML only?

This is a natural consequence of the requirements for formal verification (see below), and for robustness (see above). “REST NON-SOAP” (and XML-RPC, the SOAP originator) can be more simple and informal. The “only XML” restriction is a performance obstacle when using tiny services (~50 votes): see json.org/xml and this question, or this other one.

What is the difference between XML-RPC and REST API?

As snufkin says – XML-RPC does all it requests as POST-requests which comes with a couple of disadvantages (and probably some advantages). I like the REST-approach better where the HTTP-methods GET, POST, PUT and DELETE are used to their full extent.