# MQTT log file in Window 10

**URL:** <https://discourse.nodered.org/t/mqtt-log-file-in-window-10/10907>\
**Category:** General\
**Created:** [8 May 2019 03:49 UTC](https://discourse.nodered.org/t/mqtt-log-file-in-window-10/10907 "2019-05-08T03:49:07Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![tramanah](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/tramanah/32/9122_2.png) [@tramanah](https://discourse.nodered.org/u/tramanah)\
**Post date:** [8 May 2019 03:49 UTC](https://discourse.nodered.org/t/mqtt-log-file-in-window-10/10907/1 "2019-05-08T03:49:07Z")

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Hi good day,

Currently i am trying to view log file for MQTT transaction between subscriber and publisher in Window 10. I am using MOSCA MQTT Broker. May i know the file location.

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**Author:** ![ukmoose](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ukmoose/32/13_2.png) [@ukmoose](https://discourse.nodered.org/u/ukmoose)\
**Post date:** [8 May 2019 06:39 UTC](https://discourse.nodered.org/t/mqtt-log-file-in-window-10/10907/2 "2019-05-08T06:39:29Z")

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You’ve posted this in a forum dedicated to Node-RED. The installation of Node-RED doesn’t include any MQTT brokers so your broker is something you have installed separately. Perhaps you would have more luck posting to a forum dedicated to the broker?

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**Author:** ![cymplecy](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/cymplecy/32/2773_2.png) [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Post date:** [8 May 2019 06:41 UTC](https://discourse.nodered.org/t/mqtt-log-file-in-window-10/10907/3 "2019-05-08T06:41:01Z")

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There is quite a lot of information produced by the mqtt broker node - just connect a debug node to its output set to complete msg object

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/6/64c506ab25d6835e42f4c4e1e7141d4c6b3aec24.png)

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/e/e7f9183879cce669dafbd18ea19fa1b83416ec36.png)

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<div class="post-metadata">

**Author:** ![cymplecy](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/cymplecy/32/2773_2.png) [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Post date:** [8 May 2019 06:43 UTC](https://discourse.nodered.org/t/mqtt-log-file-in-window-10/10907/4 "2019-05-08T06:43:27Z")

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> [@ukmoose](#):
>
> The installation of Node-RED doesn’t include any MQTT brokers

node-red-contrib-mqtt-broker lets you setup a node.js mosca broker within Node-RED