Out Of Memory!

JMeter is a powerful tool for API testing. Let's say you are are writing test cases for one of your RESTful service; and you want to extract and validate the value returned as part of response header. It is little bit tricky to extract the value from Response Header in JMeter , but it is possible. For example, your RESTful service returns "ETag" in response header. When you look at the raw response data, the value is displayed something like this: ETag: 2666d92fa9ebf10250acdb235546f045 To exact value of this reaponse header in JMeter: Right click on your HTTP request, then add Post Processor element - Regular Expression Extractor Select Radio button - Main sample only Select Radio burron - Response Headers Type some name in Reference Name section - for example, eTagVariable Type this expression in Reference Expression section - ETag:\s+(.+) IMPORTANT: This expression will select pick the ETag response header parameter and select everything after colon bla...

In this article, I will be focusing on configuring JMeter with Maven but lets first understand some basics of JMeter and Maven. The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. These days, performance testing is very very important especially when the applications are targeting large number of users. There are many tools available in market, some are paid, some are free. Apache JMeter is one such free and open source software. Though JMeter's was initially developed for load testing web applications, it is now far more advanced. The biggest advantage of the JMeter is that it can do many things like performance and functional testing for web services, databases, FTPs or Web Servers, LDAP, JMS, trigger emails/notifications. Most of these features are implemented with plugins. JMeter is powerful, easy to install and use and FREE! It is a Java desktop application with simple us...