Generating JSON Data in Apache NiFi

Example of a JSON IoT Generator

{

"ip": "${ip()}",
"unique_id": "${UUID()}",

"thread": "${thread()}",

"hostname": "${hostname()}",

"sensor_9": ${random():mod(100)},

"sensor_id": ${random():mod(30)},

"sensor_3": ${random():mod(50)},

"sensor_2": ${random():mod(500)},

"sensor_1": ${random():mod(110)},

"sensor_0": ${random():mod(150)},

"sensor_7": ${random():mod(255)},

"sensor_6": ${random():mod(95)},

"sensor_5": ${random():mod(80)},

"sensor_ts": ${now():toNumber()},

"sensor_8": ${random():mod(120)},

"sensor_4": ${random():mod(60)},

"sensor_11": ${random():mod(20)},

"sensor_10": ${random():mod(10)}

}

Resources

• https://www.datainmotion.dev/2019/04/integration-testing-for-apache-nifi.html
• https://medium.com/hashmapinc/its-here-an-apache-nifi-simulator-for-generating-random-and-realistic-time-series-data-d7e463aa5e78
• https://github.com/TouK/plumber