mqtt

MQTT

This activity allows you to send message on MQTT Queue.

Installation

Flogo CLI

flogo install github.com/project-flogo/edge-contrib/activity/mqtt

Configuration

Settings:

Name	Type	Description
broker	string	The broker URL - REQUIRED
id	string	The id of client - REQUIRED
username	string	The name of the user
password	string	The password of the user
store	string	The store for message persistence
cleanSession	bool	Clean session flag
topic	string	The topic to publish to - REQUIRED
retain	bool	Retain Messages
qos	int	The quality of service
sslConfig	object	SSL configuration

sslConfig Object:

Property	Type	Description
skipVerify	bool	Skip SSL validation, defaults to true
useSystemCert	bool	Use the systems root certificate file, defaults to true
caFile	string	The path to PEM encoded root certificates file
certFile	string	The path to PEM encoded client certificate
keyFile	string	The path to PEM encoded client key

Note: used if broker URI is ssl

Topics

A substitution syntax is supported. For example if the topic is '/x/:/y/:' then the first ':' will be substituted with the value stored in topicParams input key '0' and the second ':' with key '1'. This can also be done with names: '/x/:param1/y/:param2'. The keys used for substitution are now 'param1' and 'param2'

Input:

Name	Type	Description
message	string	The message to send
topicParams	params	The topic parameters

Output:

Name	Type	Description
data	string	The data recieved

Example

{
  "id": "mqtt-activity",
  "name": "MQTT Activity",
  "description": "MQTT Example",
  "activity": {
    "ref": "github.com/project-flogo/edge-contrib/activity/mqtt",
    "settings": {
      "broker" : "tcp://localhost:1883",
      "qos": "0",
      "id":"client-1",
      "topic": "flogo"
    },
    "input" : {
        "message" : "Hello From Flogo"
    }
  }
}