Running Multiple Postman Requests with Different CSV Data Using skipRequest()
Learn how to run a Postman collection multiple times with CSV data, running one request fully before another by using the skipRequest() function to conditionally skip requests.
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This video is based on the question https://stackoverflow.com/q/79515316/ asked by the user 'Oren Diaz' ( https://stackoverflow.com/u/8480731/ ) and on the answer https://stackoverflow.com/a/79517553/ provided by the user 'mikee' ( https://stackoverflow.com/u/22769054/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.
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Problem Overview
You have a CSV file with data entries and a Postman collection containing two requests:
GetAge: uses the Name field
GetInfoCity: uses the City field
Your CSV looks like this:
[[See Video to Reveal this Text or Code Snippet]]
You want to run your collection so that the first request (GetAge) runs 4 times and the second request (GetInfoCity) runs 2 times, using the data in the CSV accordingly.
Key Challenge
Postman runs each request per iteration, iterating the data rows for each request. This means without control, every request runs for every row of data. To control how many times each request runs based on the data present, you need a way to conditionally skip requests.
Solution: Using skipRequest() to Control Execution
Postman’s scripting API provides pm.execution.skipRequest() to skip the current request during runtime based on custom logic.
How This Helps
For the GetAge request:
Since Name exists for all rows, it will run all 4 times.
For the GetInfoCity request:
Some rows have an empty City field.
Add a pre-request script that checks if City is present.
If City is empty or missing, skip the request.
This effectively runs the GetInfoCity request only for rows where City is available (2 times in this case).
Example Pre-request Script for GetInfoCity request
[[See Video to Reveal this Text or Code Snippet]]
How to Use
Attach this script to the pre-request tab of GetInfoCity.
Run the collection with the CSV data file attached.
Postman will:
Run GetAge for all 4 rows.
Skip GetInfoCity for rows where City is empty, effectively running it 2 times.
Summary
Use a single CSV with all your data.
Let GetAge run normally.
Add a pre-request script in GetInfoCity to skip requests when data is missing.
Leverage the power of pm.execution.skipRequest() to control request runs dynamically.
This approach keeps your collection simple and allows running requests different numbers of times based on your CSV data fields.
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