mqtt-quacker

Send mock data to your MQTT topic.

Usage docker

docker run 
  -e QUACKER_HOST=mqtt.host.com 
  -e QUACKER_PORT=1883 
  -e QUACKER_USERNAME=mqtt-username 
  -e QUACKER_PASSWORD=mqtt-password 
  -e QUACKER_TOPIC=my-topic/telemetry 
  -v /home/zgldh/my-project/data.json:/data.json 
  zgldh/mqtt-quacker:1.2

Usage docker-compose

Edit the docker-compose.yml

docker-compose up

Variables

name	descrpition	sample
QUACKER_HOST	The host to your MQTT server.	`mqtt.host.com`
QUACKER_PORT	The MQTT server port.	`1883`
QUACKER_USERNAME	For MQTT server auth.	`mqtt-username`
QUACKER_PASSWORD	For MQTT server auth.	`mqtt-password`
QUACKER_TOPIC	Which topic do you want the mock data send to?	`your/topic/to/send`
QUACKER_CLIENTID	The client ID	`mqtt-quacker`
QUACKER_QOS	Please check MQTT doc. 0, 1, 2	`0`
QUACKER_INTERVAL	Time interval between two data sending. (in ms)	`1000`
QUACKER_DATAFILE	The mock data template.	`./data.json`
QUACKER_DRYRUN	Dont push to server, just output payload.	""

Custom Data

Please edit the file data.json to any text you want. It supports following placeholders:

q:float:{min},{max} to generate a float number between [min, max).
q:int:{min},{max} to generate an integer number between [min, max).
q:string:{str1},{str2},{str3},...,{strN} to get one string from n strings randomly.
q:timestamp to get a current timestamp like 1620904435.
q:datetime to get a current datetime string. You can custom the date format: q:datetime:Mon Jan _2 15:04:05 MST 2006 Please refer to: https://golang.org/src/time/format.go

Currently, no more placeholders supported.

Update Logs

1.2

Breaking changes:
Use {q:datetime} instead of {q:timestamp} The {q:timestamp} is changed to output real timestamp long integer like 1620904435

1.1

Added {q:timestamp} token.

1.0