I have a directory with CSV files. each file contains a list of GET requests I'd like to make with JMeter. What I'd like to do is read all the files in a directory, and then loop through each CSV to send the requests in JMeter. The number of files isn't consistent so I don't want to hard code the file names into CSV samplers.
So in effect I'd like to read all the files in the directory and store the files in an array variable. The loop through the array and send the CSV file to the CSV sampler which will in turn read the CSV file and pass the content to an HTTP Request sampler to send the GET requests.
I created a beanshell script to read the files in the directory and store them in an array, but when I try to pass this to the CSV config element, I get errors stating the variable doesn't exist.
I've tried another beanshell script to read the file and pass the lines to an HTTP request Sampler as a variable, but the issue was, it would store all the file contents in memory per thread.
I'd like to know the best approach to read the files, send the requests and use the response data to generate reports
You will not be able to populate CSV Data Set config using Beanshell as CSV Data Set Config is a Configuration Element and according to Execution Order user manual chapter Configuration Elements are executed before anything else.
Since JMeter 3.1 you should not be using Beanshell, it is recommended to switch to JSR223 Elements and Groovy language
I would recommend going for Directory Listing Config plugin, it scans the provided folder (in your case with CSV files) and stores the found paths to files into a JMeter variable
So you can use the Directory Listing Config in combination with __StringFromFile() or __CSVRead() functions and that should be more or less good way of implementing your requirements.
Related
I need to get whole text from csv file using CSV Data Set Config at once.
You cannot, if you want to load the whole file into certain place in the Test Plan or into a JMeter Variable you can use __FileToString() function and provide the relative or full path to the CSV file like:
${__FileToString(/path/to/your/file.csv,,)}
if you want to save the file into the variable just provide the variable name as the last parameter:
${__FileToString(/path/to/your/file.csv,,foo)}
Check out Apache JMeter Functions - An Introduction article to learn more about JMeter Functions concept
I'm really struggling with getting Jmeter to work with sending multiple json files in Jmeter to a REST API. I have tried other questions on stack and tutorials online and none of them answer my specific requirement.
My requirement is that I will have various json messages saved to a file directory and I'm trying to use JMeter to loop through the folder, pick up the json's and pop it into a HTTP request one at a time i.e. one file = one request and view the result.
Does any one know how to do this?
The easiest solution would be:
Directory Listing Config plugin to read file names into a JMeter Variable
__FileToString() function to read the file content
Test scenario: The folder contains multiple CSVs. Columns are same in all the CSVs.I have to pass multiple csv files one after the other to the single REST API (GET CALL).
Each user (Total 1000 users) should get assigned a set of records/rows from csv file currently in use.
I am new to the JMeter and finding a solution using the CSV Data Set Config. And I realize I could not pass multiple csv files using this.
I also see that __CSVRead() function but I could not pass dynamically the csv file using BeanShell scripting.
Can someone please help me with this?
The CSV file names from the folder can be read one by one using Directory Listing Config plugin
Depending on the CSV file nature you might want to use either __CSVRead() or __StringFromFile() functions directly in your HTTP Request sampler, you don't need to go for any scripting.
I'm new to Jmeter so I hope this question is not too off the wall. I am trying to test an HTTP endpoint that accepts a large JSON payload and processes it. I have collected a few hundred JSON blobs in a file and want to use those as my input for testing. The only way that I have come across for loading the data is using the CSV config. I have a single line of the file for each request. I have attempted to use \n as a delimiter and have also tried adding a tab character \t to the end of each line. My requests all show in put of<EOF>.
Is there a way to read a file of JSON objects, line at a time, and pass them to my endpoint as the body in a POST?
You need to provide more information, to wit: example JSON file (first 2 lines), your CSV Data Set Configuration, jmeter.log file, etc. so we could help.
For the time being I can state that:
Given CSV file looking like:
{"foo":"bar"}
{"baz":"qux"}
And pretty much default CSV Data Set Config setup
JMeter normally reads the CSV data
Be aware that there are alternatives to the CSV Data Set Config, for example:
__CSVRead() function. The equivalent syntax would be ${__CSVRead(test.csv,0)}
__StringFromFile() function. The equivalent syntax would be ${__StringFromFile(test.csv,,,)}
See Apache JMeter Functions - An Introduction to get familiarized with the JMeter Functions concept.
In my JMeter test, I have a Loop Controller nested inside a few other modules with contains a CSV Data Set Config. I also have a CSV Data Set Config in the top of my Thread Group that reads from a CSV to get a file location. I was to use this file location in the nested CSV Data Set Confing to grab the CSV from that location and loop through that one. An error is being thrown because all the CSV files are loaded at once, in the beginning of the test. Is there a way to delay the loading of a CSV so that I can ensure the file path variable has already been set?
You will not be able to use CSV Data Set Config the way you describe. All the config elements get loaded before the test begins.
You can use Beanshell Pre/Post Processor/Sampler.
I had a requirement to load csv file in CSV Data set config of my JMeter script- Name of the csv file can be anything. I run my script with ANT. So i get the name from ANT and pass it to JMeter via a property. CSV data set config uses the property to load the CSV. Thought of sharing this as It might help you as I am not sure of your exact requirement.
EDIT:
You can have a look # __CSVRead(), __StringFromFile() functions.
http://jmeter.apache.org/usermanual/functions.html