JSON Extractor - Capture JSON Data
How to use JSON Extractor to capture data from JSON message in JMeter?
The JSON Extractor allows you to capture data with a JSON expression match. If a match is found, the matched data is capture in a given variable.
You can follow this tutorial to see how JSON Extractor works.
1. Copy and create a Test Plan called Azure-Echo-API-JSON-2.jmx.
2.Add a JSON Extractor to "Post a Valid JSON" sampler with the following JSON expression which looks for the content of "Name" property of the "TestRun" object:
Reference Name: TestRunName XPath Query: $['TestRun']['Name'] Match No.: 1 Default Value:
3. Add a Debug PostProcessor after the JSON Extractor to "Post a Valid JSON" sampler.
3. Run the test plan with a Debug PostProcessor and open the "View Results Tree" listener.
4. Check the output of Debug PostProcessor under "Post a Valid JSON". You see the JSON data captured in "TestRunName" as "First Run".
The picture below shows you how to capture JSON data with a JSON Extractor:
2017-11-26, 198👍, 0💬
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