CSV download file getting 400 response code

Question

When I recorded the script for downloading a CSV file, only that HTTP request is getting a 400 response code. The audit history of the website displaying file is downloaded. When I hit the audit history download link, I get an internal server error.

Note: if I download the file with manual steps, the audit history download link is downloading the CSV file.

My payload has dynamic time stamps for file name suffix and activity Id

fileName: 
AAJCAA_5199_1312023_73446PM.pdf
activityId: 
87061

Please let me know how can I declare these parameters in the download file sampler.

Answer 1

Most probably it's a matter of correlation, i.e. these file name and activityId are somewhere in the previous responses and you need to extract them using a suitable JMeter Post-Processor and replace hard-coded values with the JMeter Variables from the Post-Processor.

In case if timestamp is the current timestamp - you can use JMeter's __time() function to generate it on the fly like:

${__time(ddMMyy-hmmssa,)}

Answer 2

While working in a software qa consulting organization, I've tackled with several issues working with JMeter. Considering the above issue, there may be two different cases that can be considered.

Case-1

As per the response code, it seems that the issue is with the request in the script. Several factors are needed to be checked such as :

• parameter
• url
• path of the given location
• connection (required to check with sever/network team: if the application is subjeted to allow request from an external source)
• authentication (if any)

Other solutions include:

• try to record with blazemeter
• if you have acccess you can use other licensed tools
• try to use latest version of jmeter (apache-jmeter 5.5)

Case-2

As far as the file name and activity_ID is considered, it may be:

1. Co-relation : As far as the file name and activity_ID is considered, both the file name and activityId may be found in the previous responses and you need to extract them and pass them using regular expression over hard-coded values.

2. Timestamp : if in case the filename may be generated using the current time stamp, then the time-stamp regular expression can be used ${__time(ddMyyyy_hmmssa,)}