How to read json file into jmeter using Random csv config - jmeter

Question

To read this data into jmeter random csv config data.
Sample Json is as below :
{
"key": "COMMUNICATIONS",
"id": "72ec45ba-f0a1-11e9-81b4-2a2ae2dbcce4",
"description": "6666666666666666.",
"name": "***********************",
"overview": "*************.",
"subCategories": [
{
"key": "PHONES_VOIP_TROUBLESHOOTING",
"id": "72ec46e6-f0a1-11e9-81b4-2a2ae2d",
"description": "fix my phone network as it is down.access my voicemails",
"name": "Phones/VOIP troubleshooting",
"overview": "fix my phone network as it is down.access my voicemails",
"support": "Windows, MAC"
}
]
}

Answer 1

Store the data you want into i.e. test.csv file in JMeter's "bin" directory like:
COMMUNICATIONS,72ec45ba-f0a1-11e9-81b4-2a2ae2dbcce4,6666666666666666,***********************,*************.,PHONES_VOIP_TROUBLESHOOTING,72ec46e6-f0a1-11e9-81b4-2a2ae2d,fix my phone network as it is down.access my voicemails,Phones/VOIP troubleshooting,fix my phone network as it is down.access my voicemails,Windows, MAC
Add Random CSV Data Set Config to your test plan and configure it as follows:
Filename: test.csv
Variable Names: key,id,description,name,overview,subKey, subId,subDescription,subName,subOverview,support
other fields can be left intact
Once done you can click Test CSV Reading button and you should see generated JMeter Variables names along with respective values
Now you can parameterize your JSON payload in HTTP Request sampler and replace hard-coded values with the JMeter Variables names:
{
"key": "${key}",
"id": "${id}",
"description": "${description}",
"name": "${name}",
"overview": "${overview}",
"subCategories": [
{
"key": "${subKey}",
"id": "${subId}",
"description": "${subDescription}",
"name": "${subName}",
"overview": "${subOverview}",
"support": "${support}"
}
]
}
That's it, when you run your test you will see that JMeter Variables are replaced with the values from the CSV file in the runtime using i.e. View Results Tree listener
Going forward just add more entries to the test.csv file so each JMeter Thread (virtual user) could pick up a random value on each iteration.
See Introducing the Random CSV Data Set Config Plugin on JMeter article for more details.