Web services - SOAP (Simple Object Access Protocol)


SOAP (Simple Object Access Protocol) is a protocol defined originally by Microsoft and standardized by the W3C. It make use of XML, which defines the mechanisms for exchanging information between clients and web service providers.
The transport mechanism used for SOAP messages can be HTTP, SMTP, FTP, etc..

There are SOAP libraries available for many languages, including Perl, C, C++, C#, Python, Java, Visual Basic/.NET, PHP, Ruby, etc.
SOAP supports many data types as parameters:

  • whole number
  • dates
  • Boolean
  • strings
  • tables (structures)
  • associative arrays


SOAP defines an mechanism for associative arrays to notify the occurence of errors.

Original document published on CommentcaMarche.net

Ask a question
CCM is a leading international tech website. Our content is written in collaboration with IT experts, under the direction of Jean-François Pillou, founder of CCM.net. CCM reaches more than 50 million unique visitors per month and is available in 11 languages.
This document, titled « Web services - SOAP (Simple Object Access Protocol) », is available under the Creative Commons license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM (ccm.net).