We’re only going to discuss clients that actually implement the HTTP protocol, so libraries such as Spring’s RestTemplate or Feign that act as higher-level wrappers will not be discussed (although we may look at these in a future article). This article aims to provide an overview of the major libraries, with a focus on the characteristics you’re likely to care about when making a selection for your project. This can make choosing the right HTTP client less than straightforward. Import import .config.RequestConfig import .methods.HttpUriRequest import .methods.RequestBuilder import .client.HttpClientBuilder import .HTTP has become the dominant protocol for integration of networked programs, and consequently many (possibly most) Java projects need to be able to make HTTP calls to other systems.Īs with many things in the Java ecosystem, a broad array of alternatives exist for achieving this, both via core libraries and open source. In the JSR223 Sampler, add the following code example. In order to create your own method for sending an HTTP / HTTPS GET request, you need to do the following. Now, this method can be added to the JAR file and called in JMeter, which reduces the time for creating tests. If we go to the web interface, we will see the request that we sent, as shown in the image below. The cmd will also display the sent request and the received response, as shown in the image below. The image above shows the request being sent and the response received. Log.info(Arrays.toString(test1)) - Displaying a request and response in the JMeter consoleĪfter running the code for execution, we get the following result in the JMeter console: List test1 = sendRequest("","POST", map) - Sending a request with specific values and generating the variable "test1" with the data type List, which will contain the request and response Map.put("Param_3", Arrays.asList("a","b","c")) - Creating the body of the request Import import .config.RequestConfig import .methods.HttpUriRequest import .methods.RequestBuilder import .client.HttpClientBuilder import .EntityUtils import .StringEntity import List sendRequest ( String url, String method, Map body ) - Creating an httpClient object that will send the request the formation of a response displaying the request and the response to the cmd. You can adjust the code in your own script according to your specific needs. Thread Group -> Right Click -> Add -> Sampler -> JSR223 Sampler Right Click -> Add -> Threads(Users) -> Thread Group In order to create your own method for sending an HTTP / HTTPS POST request, you need to do the following in JMeter. Sending an HTTP / HTTPS POST Request in Groovy Running Your Groovy HTTP Request in BlazeMeter.Sending an HTTP / HTTPS POST Request in Groovy.We will be sending HTTPS requests through the created WebHooks. To follow the example in this blog post, register on the site and create WebHooks.Gson 2.8.4 - the downloaded JAR file must be added to JMeter, as shown in "How to Implement Data Driven Testing in your JMeter Test".In addition, if there are changes in the API (for example, changing the URL or adding a parameter), you will only need to make the changes in one place.īefore creating methods for sending HTTP and HTTPS requests, you need to download the following JAR file: This is necessary when creating complex JMeter autotests because Groovy provides you with more flexibility. In this article, we will explain how to send a Groovy HTTP request and HTTPS request and HTTPS in Apache JMeter™. This means using your own methods instead of creating them through the GUI.
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