<p class="wp-block-paragraph">In this article, we will discuss some points that provide the difference between SOAP versus RESTful <a href="https://dineshonjava.com/category/microservices/"><strong>microservices</strong></a>. Before this article, we have discussed the <a href="https://dineshonjava.com/software-architecture-patterns-and-designs/"><strong>Software architecture patterns and design</strong></a>, and also we have discussed <a href="https://dineshonjava.com/application-decomposition-to-microservice/"><strong>how to decompose an application to the Microservices</strong></a> architecture based application.</p>



<p class="wp-block-paragraph">Let&#8217;s start this article with the following diagram, that provides a lot of description about the differences:</p>



<div class="wp-block-image"><figure class="aligncenter"><img src="https://dineshonjava.com/wp-content/uploads/2019/05/soa-vs-microservices.png" class="wp-image-4399"/><figcaption>SOAP vs RESTful Microservices</figcaption></figure></div>



<p class="wp-block-paragraph"> The preceding diagram explains that SOA service based applications are compromised of more loosely coupled components that use an Enterprise Services Bus (ESB) messaging protocol to communicate between themselves. </p>



<p class="wp-block-paragraph">But the Microservices based applications are a number of independent application services delivering one single functionality in a loosely connected and self-contained fashion, communicating through light-weight messaging protocols such as HTTP REST or Thrift API.</p>



<h2 class="wp-block-heading"><strong>SOAP versus RESTful microservices</strong></h2>



<p class="wp-block-paragraph"> SOAP and RESTful microservices have the following differences:</p>



<table class="wp-block-table has-subtle-pale-blue-background-color has-fixed-layout has-background"><tbody><tr><td><strong>SOAP</strong></td><td><strong>RESTful microservices</strong></td></tr><tr><td>An XML-based message protocol.</td><td>An architectural style.</td></tr><tr><td>Uses WSDL for communication between the consumer and the provider.</td><td>Use XML or JSON to send and receive data.</td></tr><tr><td>Invokes services by calling the RPC method.</td><td>Simply call services via the URL path.</td></tr><tr><td>The transfer is over HTTP. Also uses other protocols, such as SMTP or FTP.</td><td>The transfer is over HTTP only.</td></tr><tr><td>SOAP-based reads can&#8217;t be cached.</td><td>RESTful microservice reads can be cached.</td></tr><tr><td>SOAP is not very scalable.</td><td>RESTful microservices are very scalable.</td></tr><tr><td>SOAP is more suitable for enterprise systems and high-security systems, such as a banking system.</td><td>RESTful microservices are suitable for all types of systems apart from where high<br> security and high reliability is critical.</td></tr><tr><td>Doesn&#8217;t support error handling.</td><td>Has built-in error handling.</td></tr><tr><td>Uses service interfaces to expose the business<br> logic.</td><td>Uses URI to expose business logic.</td></tr></tbody></table>



<p class="wp-block-paragraph"></p>
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