MQ Explorer

1. Start the FairCom Edge browser-based tools (https://localhost:8443/) menu.
   

   

2. Select MQ Explorer.

Connecting to MQ Explorer displays the Figure 1, “MQTT Explorer Dashboard”. This section goes over the features you can use from the dashboard.

Figure 1. MQTT Explorer Dashboard

Control menu

Figure 2. Control menu

The Control menu () contains the MQ Explorer features:

• Dashboard
• MQTT Management
• API Explorer

Dashboard Containers

The Dashboard displays containers that are empty until activity in the container occurs.

• Connections
• Disconnections
• Topics
• Last Will Messages
• Retained Messages
• Subscriptions
• Inbound Messages
• Outbound Messages
• Connection Events — Shown on the Historical Dashboard. The Show Historical and Show Current button toggles dashboards.
  

  

Time intervals

Figure 3. Time intervals

Time intervals are displayed above the containers:

• Click the desired time interval to select the duration of time for collecting data. The number of messages processed within each time interval is displayed in the inbound and outbound containers.
• A Refresh icon () allows you to update the graphs with the latest data. The default refresh rate is 15 seconds.

Connections

Figure 4. Connections

The Connections section of the dashboard contains information regarding client connections to the running FairCom broker.

This section provides procedures for managing subscriptions and publishing messages.

Select MQTT Management from the menu ():

Manage Subscriptions window

Use the Manage Subscriptions window to subscribe to a topic or view messages.

Subscribe to a topic

Figure 5. Manage Subscriptions window

1. In the MQTT Management window, click ().
2. Enter the Topic you wish to subscribe to in the Topic textbox .
3. Click ().
4. The topic is listed in the Manage Subscriptions window.

Publish Message window

Figure 6. Publish Message window

1. In the MQTT Management window, click ().
2. Enter the topic you wish to publish or select it from the drop-down menu of the Topic textbox.
3. Enter the message you wish to send in the textbox.
4. Check the Also subscribe checkbox to automatically subscribe to the same topic so the published message will display in the Incoming Messages window.
5. Click ().
6. The message appears in the Incoming Messages window.

View messages

Figure 7. View messages in MQTT Management
 

 

1. Select a message header to view the full message payload.

1. Select API Explorer from the Control menu ().
   

   

2. Observe the API Explorer and see the API Explorer UI documentation for its features and functions.