JMeter - How to read JSON file?

I used the CSV format for the data files in JMeter. Our VP wants to change the format to JSON. How can I read a JSON file from the disk?

You have at least 2 options:

1. Use HTTP Request sampler and file protocol like:

   

   JSON files are basically plain-text files so you will be able to use JSON Extractor or JSON Path Extractor to parse JSON data and store the result into JMeter Variables for later reuse

   References:

   • Jayway JsonPath - Getting Started
   • Advanced Usage of the JSON Path Extractor in JMeter

2. Use JSR223 Test Elements and Groovy language. Groovy has built-in JSON support via JsonSlurper so you will be able to parse the JSON file programmatically.

   References:

   • The Groovy programming language - Parsing and producing JSON
   • Groovy - JSON