Definition of JMeter API Testing
The following article provides an outline for JMeter API Testing. API means Application Programming Interface that is used to access the application without interaction of real-time application. So using, the JMeter tool is used to test the API to meet the user expectation of the application, such as performance of the application, security, reliability of application and functionality, etc. In other words, we can say that the API allows us to communicate with another application which means it sends the request to another application and gets the response from the target application. So Apache JMeter is one of the popular open-source tools used to check applications’ performance.
What is JMeter API testing?
Programming interface or Application Programming Interface is a halfway programming that makes the cooperation between two applications conceivable. To comprehend this shockingly better, how about we take a model.
For instance, if you reserve a transport, you start the cycle by looking on the web for transport that matches your objective, takeoff, return dates, and numerous other related channels. Then, to settle on a choice that thinks about this large number of decisions, you collaborate with the transport reservation site and access their information base. Finally, you want to check whether any seats are accessible on those dates and their expenses. This whole cycle you go through, from the time you start to the time you finish, is worked with by an API.
The Apache JMeter application is open source programming, a 100 percent unadulterated Java application intended to stack good test conduct and measure execution. The Apache JMeter application is open source programming, a 100 percent unadulterated Java application intended to stack good test conduct and measure execution. The JMeter is built to test web-based applications to different functionalities. We can use JMeter for static and dynamic web-based applications per our requirements.
It may mimic a weighty burden on a server, gathering of servers, organization, or object to test its solidarity or break down generally execution under various burden types.
JMeter isn’t a program; it works at the convention level. However, taking everything into account, JMeter resembles a program (or rather, various programs); but JMeter doesn’t play out every one of the activities upheld by programs. Nor does it render the HTML pages as a program does (it’s feasible to see the reaction as HTML and so on, however, the timings are excluded from any examples, and just one example in each string is at any point shown in turn).
Why use JMeter API testing?
Now let’s see why we need to use JMeter API testing.
A portion of the apparent reasons regarding the reason why Apache JMeter is utilized for API Testing is:
JMeter is an open-source tool: JMeter is an open-source, free tool used to test the performance and load of the application.
It supports Cross-platform testing: JMeter is a Java-based open-source tool, and it supports different operating systems such as Windows, Linux, and macOS.
Easy API Testing: API Testing empowers simple, smooth, and quick API testing.
Speedy extension tests: JMeter is an intense instrument for execution testing, making the interaction simple for everybody, whether experienced or unpracticed.
Empowers load testing: JMeter is an exceptionally powerful instrument to gauge assuming a web application fulfills a specific burden prerequisite or not.
Empowers pressure testing: JMeter can reproduce clients to gauge the application execution under a ton of stress.
Heaps of modules: JMeter offers a lot of modules, and more modules can be introduced effectively by introducing a Plugins Manager.
How about we see the method involved with performing JMeter API testing.
JMeter API testing Step by steps
Now let’s see step by step execution of JMeter API as follows.
1. First, we need to start the JMeter and select the Test Plan option per our requirements.
2. In a second step, we need to select the Thread Group present under the Test Plan; here, we can choose any Thread Group as per our requirement, as shown in the following screenshot.
3. In a third step, we need to add the HTTP request, and here we also need to provide the IP address or name of the server for our specified API. After that, we must select the parameter and path, as shown in the following screenshot.
Below the screenshot, we can set HTTP requests as GetAPI as follows.
4. After setting up HTTP requests, we can perform the testing and determine the application result on the listeners. After executing the test, we need to check the result by following the following steps.
4.1. First, we need to view the result tree. If here we got green status, that means test execution completed.
4.2. The test execution we can also see in the table, so we need to go view results in a table and check if their status is green or not.
Now let’s see how we can make the POST request as follows.
1. Similarly, we need to add the HTTP request and the thread group.
2. We need to click on the POST API option in the second step.
3. Open the specified requested URL.
4. Copy the specified URL into a window and back to JMeter Tab.
5. Here, we need to rename the HTTP request like the POST API.
6. Similarly, the line GET method provides the server name or IP address.
7. In the next, add the body into the JMeter window as shown in the following screenshot.
Now check the output through the listeners.
We hope from this article you learn more about JMeter API Testing. From the above article, we have taken in the essential idea of JMeter API Testing, and we also see the representation and example of JMeter API Testing. Furthermore, this article taught us how and when to use JMeter API Testing.
This is a guide to JMeter API Testing. Here we discuss the Definition, What is JMeter API testing; why use JMeter API testing? Examples with code implementation. You may also have a look at the following articles to learn more –