Jmeter Script to upload all files in a folder? - jmeter

Question

I am trying to test an API using Jmeter.
http://localhost:8080/fileupload
This API take a single file as as a parameter and uploads it to my App
Now I have a folder which contains 1000's of such files.
How do I write a script in Jmeter that picks up 1 file from the folder and then sends a request (i.e. 1 request for each file) and this continues for all the files in the folder?

Answer 1

I would suggest using Beanshell Sampler and ForEach Controller combination like:
Add Beanshell Sampler to your Test Plan
Put the following code into "Script" area:
File folder = new File("c:\\somefolder");
File[] files = folder.listFiles(new FileFilter() {
public boolean accept(File file) {
return file.isFile();
}
});
for (int i=0; i < files.length; i++) {
vars.put("file_" + i, files[i].getAbsolutePath());
}
The above code will generate JMeter Variables like:
file_1=C:\somefolder\somefile.txt
file_2=C:\somefolder\someotherfile.jpg
Add ForEach Controller after the Beanshell Sampler and configure it as follows:
Input variable prefix: file
Output variable name: anything meaningful, i.e. currentFile
Check `Add "_" before number
Put the HTTP Request sampler which performs file upload under the ForEach Controller
Put ${currentFile} to "File Path" input
See How to Use BeanShell: JMeter's Favorite Built-in Component guide for comprehensive information on enhancing your JMeter tests with Beanshell

Answer 2

To make JMeter upload all files:
First create a CSV file that contains the file names
Then use a CSV Data Set with 2 columns:
- 1 that will contain the path to files, let's say you name it pathToFile
- 1 that will contain the mime type of the file, let's say you name it mimeType
Then in your HTTP Request , select "Files Upload" Tab and use the variables:
Note you must change:
paramName in the table to match what you have in your form.
path to match your URL suffix
host
port if different from 80 for HTTP and 443 for HTTPS

Answer 3

I think this can be solved by using the solution provided here :
http://artoftesting.com/performanceTesting/fileUploadInJMeter.html
and keeping the file name like:
abc-${counter}.png
where the counter is a counter variable which increments with each request.
Also, files in the folders too are like abc-1.png abc-2.png etc.