Note: JMeter has a limitation to use test data which is stored in a .csv file format only. CSV data can be converted to JSON via a POJO using Jackson. So the loop will iterate over CSVLine_1, CSVLine_2 and CSVLine_3. Let the Method be with some default selection. Add below elements to Existing Test Plan * Thread Group -> Add -> Sampler -> Debug Sampler* HTTP Request -> Add -> Post Processors -> XPath2 Extractor Source: link Write an answer Submit your Answer Just upload the file in our interface, drag & drop is supported. Using CSV & JSON . Actually, JSON is a simple text which is used to exchange information between the client and the server. Add a HTTP Header Manager (Rightclick on Test Plan -> Add -> Config element -> HTTP Header Manager ) In HTTP Header Manner config page, click on 'Add'. Install J-Meter. Server Name and Path parameters will be name of the server and its Path. Also CSV stands for comma-separated-values and in JSON data is separated by commas as well so it might be the clash there as well. In order to do this, we have created one CSV for each user, named with the username and with a .csv extension. This post will show how to do JMeter Load Testing with a JSON payload. We are working on web services automation project using JMeter 4.0 In our response, JMeter returns data in json format but we would like to store only specific data (Account ID, Customer ID or Account inquiry fields) from that json into csv file but it stores data in csv file in unformatted format. When we execute this JMeter test, it will loop through the CVS, taking each file name and extract the contents of each file to send as a JSON in the body of the request. For our case, this will produce a JSON file that is saved to the location where JMeter is currently running (though the path can be configured in the Filename Prefix field). The best example of CSV input files usage is a login process. But first of all, let's create a simple CSV file that contains a list of users (each user on a separate line), with an email and password separated by a comma on each line: less users.csv JMeterSharingModeUser1@example.com,123qwe JMeterSharingModeUser2@example.com,234wer JMeterSharingModeUser3@example.com,345ert Now save the text file with proper name and " .csv " extension and keep it in the Bin Folder. 1) Click on Thread group-> Add->Config Element -> CSV Data Set Config. Example File Name like : CC_Coll_Response_2019-11-22-1603.csv is created in C:\CC\results folder. Download plugins-manager.jar and put it into JMETER_HOME/lib/ext directory, Restart JMeter, Click on Options > Plugins Manager in the top menu, Select Available Plugins tab, Select Json Plugins and click on Apply Changes and Restart JMeter. In this tutorial, we will see how to handle file upload in JMeter. To configure your load test to split input CSV files: Go to the Test plan page for your load test. Add a HTTP Sampler and update the details. We then put the JSON payload into the Body Data section of our HTTP Request Sampler. The CSV Data Set Config is used to read lines from a file and to split them into variables. Solution 1. Inside the CSV Data Set Config there are few fields you need to configure in order to run Apache JMeter tests and load the data for the test from a CSV file. If you already know how to use the CSV Data Set in JMeter but wish to run your performance tests in BlazeMeter, please . 2) Open the bin folder from JMeter installation path. I have a post request naming 'Register' which will allow users to upload .csv files or .json files I want to test the load on this API with different CSV /JSON files for different users. Click 'CSV Data Set Config' Provide the path of the .csv file (Test Data file) in the 'Filename' field. Most probably you need to add HTTP Header Manager and configure it to to send Content-Type header with the value of application/json Another reason could be improper work of the JSON Extractor, double check the "token" variable value using Debug Sampler and View Results Tree listener combination. We can use JMeter to send multiple JSON request and load test our REST API. Also add a Header Manager with Content-Type as application/json Add a JSR223 - PreProcessor. This should be part of a longer test script you have, which uses the data from the CSV file for the load testing scenario. main samplesub-sampleajax . whether you want test to stop on .csv file end or re-spin or whatever. To perform sending the JSON payload we need a different configuration. We now use a BeanShell script to save each of the ids captured from JSON responses to a CSV file. Writing the Extracted Output Using PostProcessor Another way we can extract data to a file is by creating a BeanShell PostProcessor. JMeter's built-in CSV Data Set Config is reading lines from the CSV file sequentially so each user will get the next line on each iteration. If a POJO is not already defined or required, you can always use the Java Collection classes to store parsed data and later convert it to JSON. 1. I want to use the above file name and its Json content (like Host_Name) in next API to trigger. The next time you run the test, Azure Load Testing splits and processes the CSV file evenly across the test engines. Uploading file to server requires building a multipart/form-data request. Due to increase, the use of the REST APIs, the JSON is used as a primary data exchange format. 1. A) Need to extract details from response andB) Only extracted details should be saved to .csv file for further use. Java by default doesn't provide a parser for CSV hence at the end we will end up writing up a parser.OpenCSV is a third party library which can effecitively handle a CSV file . Select Split CSV evenly between Test engines. Each value is treated as a value of a particular variable. So to use a CSV file located in the same . 4. First add a Thread Group. The Collection Runner let's you import a CSV or a JSON file and then use the values from the data file inside HTTP requests and scripts. Right click on Test Plan -> Threads -> Thread Group. Populate other values according to your test scenario i.e. You can check the following links too. If you don't have J-Meter installed. I have added files path in 'PLAN.CSV' .Each file contain JSON DATA- Please guide Request image and result image is attached here Resquest Response CSV CONFIG SET Each id from each response is added to this file. .csv file is a comma-separated file in which values are separated by a comma in each row. If you have only one JSON payload which you need to read from the file in the file system you can consider switching to __FileToString () function like: $ {__FileToString (/path/to/your/file.json,,)} User will see a new Test Plan as shown in below image: User needs to save the test plan with the desired name with .jmx extension as shown in the figure. And your HTTP Request should look like: The main point is that variables defined in the CSV Data Set Config need to match the ones in the HTTP Request. Name=Content-Type First we will upload all files to our own file sharing system so that you do not have to worry about if it is on every JMeter instance and where it must be. Today we are going to do a JMeter Post Method with Multiple JSONs inputs1. Place a csv file with the JSON file nam. Select Apply to confirm the configuration changes. So, we would be required to select POST Method in HTTP Request sampler. 1"main sample only". The column with the name of JSON request files cater the need to refer JSON files. JMeter Test Plan: I add a CSV Data Set Config - to read the test scenarios and input parameters. to jmeter-plugins. Make sure to download the latest version of J-Meter and follow the installation guides depending on your Operating System as stated in. File upload in JMeter will be a HTTP Post request. Check it out! Add an element that enables you to write a code in Java, i.e a BeanShell element. http://www.novixys.com/blog/convert-csv-json-java/ is a good reference on how to convert csv to java. You can keep this field empty if you want to use first line of CSV file as variable name 4)Ignore First Line: Set this field to True if you want to ignore the first line of CSV file, else. "vars.get ("sampleId)" is getting the "sampleId" from our JSON Extractor step, and writing it out to a file. 2. In JMeter, JSON (JavaScript Object Notation) Extractor is used to extract the values from JSON response. Create a text file and enter values into it. Suppose we have 11 JSON files: 100.txt, 101.txt, 102.txt, and so on. CSV stands for Comma Seperated Values, it is the popular format used for import and exporting of data. Place the JSON file in a folder location2. Video Tutorial On JMeter Post Processor JMeter POST Processors #1) Regular Expression Extractor #2) CSS/JQuery Extractor #3) XPath Extractor #4) Result Status Action Handler #5) BeanShell Post Processor #6) JSR223 Post Processor #7) JDBC Post Processor #8) JSON Path Post Processor #9) Boundary Extractor #10) Debug Post Processor Include this name-value pair. It is written with the JavaScript object. To do this: Right Click on Thread Group->Add->Config Element and select the CSV Data Set Config. For reading data from CSV file, JMeter provides a config element called CSV Data Set Config. This is, what User Parameters 2 does. User Parameters 2 contains CSVLineSplit=$ {__split ($ {LineContent},CSVLineSplit)} We call these variables data variables. Each time the line content is placed into LineContent. The best example of CSV input . The variable is JSON_FILE which takes the values of 100, 101, 102, etc from the CSV file. If you need to read a random line (however I don't think it's a good idea as I believe tests need to be repeatable) you will need to go for some plugins like: Random CSV Data Set Config; or HTTP Simple . Use Directory Listing Config plugin to read the files into a JMeter Variable. Then we need to reference this variable in our __FileToString () JMeter function, i.e. Butthe data is still just a CSV line, so we must split it to get to the separate items in the line. Assuming your CSV file is called test.csv, located in JMeter's "bin" folder and looks like: Add CSV Data Set Config to your Test Plan and configure it as follows: You can inline the defined JMeter Variables directly into your request body like: So when you run the test the variables placeholders will automatically be substituted . As it post fix with a time stamp. The following article elaborates in the detail on the how to use this element when creating your performance testing scripts in JMeter. And when configuring your csv, select it from the list: Overview of the file See Using CSV DATA SET CONFIG guide for detailed instructions. don't use C:\Data\Files\abc.csv in your test plan, use only abc.csv (and place this file in Bin directory). Use __FileToString () function in the HTTP Request sampler body data to read the file from the directory. That way, we can use them as a Data Set Config in our GET tests. Also, it will be good to keep the test plan too in the Bin directory of . Step 1: Go to File -> Click on New. In Apache JMeter, one of the common ways to parametrize your performance scripts is to use a CSV file. The JMeter Json Plugin should be available in right click menu Add > Post Processors > Json Path Extractor. Then, using JMeter we need to add the file to our test . The easiest way to resolve this issue is to place the CSV file on all servers (Master and Slaves) inside the Bin directory of JMeter and don't specify any path for the CSV file inside the your JMeter test plan i.e. In order for the JMeter script to use our CSV file, which has all of the device names and types, we should add "CSV Data Set Config" config sampler. Share Improve this answer Steps. Send Files with the Request - should have the path of your request JSON file OR include the request JSON in the Body Data section of the HTTP Request. You need to make use of CSV Data Set Config element to do this. 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