# How do I add user defined logs in log file
**URL:** https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242
**Category:** General
**Tags:** function-node
**Created:** [22 June 2022 14:28 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242 "2022-06-22T14:28:18Z")
**Posts on this page:** 13
**Page:** 1
### Author:  [@MiliH](https://discourse.nodered.org/u/MiliH)
#### Post date: [22 June 2022 14:28 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/1 "2022-06-22T14:28:18Z")
Hello,
I want to add logs to log file in Node-RED to check whether workflow is working properly.
Can anyone help me out how to add logs.
Thank you!
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [22 June 2022 15:00 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/2 "2022-06-22T15:00:50Z")
In a debug node, if you select output to console then it will be sent to the node red log, so will appear in the terminal running node-red. Is that good enough?
Similarly, text output using `node.warn()` in a function node will appear there.
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### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [22 June 2022 15:12 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/3 "2022-06-22T15:12:53Z")
In a function node, you can use `node.log` - annoyingly though, it only takes a single parameter and you have to flatten objects.
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### Author:  [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)
#### Post date: [22 June 2022 15:30 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/4 "2022-06-22T15:30:32Z")
...or use [node-red-contrib-flogger](https://flows.nodered.org/node/node-red-contrib-flogger)
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### Author:  [@MiliH](https://discourse.nodered.org/u/MiliH)
#### Post date: [23 June 2022 05:41 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/5 "2022-06-23T05:41:08Z")
I want logs to be added in Notepad file.
Eg:. If I am sending email using email node then log should be added to log file that email is sent to respective person.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [23 June 2022 07:50 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/6 "2022-06-23T07:50:28Z")
So what do you need that is not supported by the flogger node?
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### Author:  [@MiliH](https://discourse.nodered.org/u/MiliH)
#### Post date: [23 June 2022 08:07 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/7 "2022-06-23T08:07:23Z")
Flogger node is returning JSON type data. If there is any error occurred we cannot identify that error in log file that is generated using flogger.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [23 June 2022 08:18 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/8 "2022-06-23T08:18:51Z")
> [@MiliH](#):
>
> Flogger node is returning JSON type data
Do you mean this statement in the description is not correct?
"You can define different output formats like plain textfile or JSON format "
If so then I suggest you raise an issue against the bug.
What have you got `Log Style` set to?
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### Author:  [@MiliH](https://discourse.nodered.org/u/MiliH)
#### Post date: [23 June 2022 09:45 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/9 "2022-06-23T09:45:06Z")
I know that we can define different output formats in flogger but the format for that will be fixed. I want user defined format for log file.
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### Author:  [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)
#### Post date: [23 June 2022 10:17 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/10 "2022-06-23T10:17:13Z")
Well change the format before writing it to flogger as plain text.
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### Author:  [@MiliH](https://discourse.nodered.org/u/MiliH)
#### Post date: [23 June 2022 10:57 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/11 "2022-06-23T10:57:38Z")
Where is output of node.log printed?
I mean if we are using node.warn output of that statement is printed in Debug window of node-red but where is output of node.log printed?
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### Author:  [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)
#### Post date: [23 June 2022 14:54 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/12 "2022-06-23T14:54:30Z")
> [@MiliH](#):
>
> Where is output of node.log printed?
Have a read of the user guide.
[https://nodered.org/docs/user-guide/writing-functions#logging-events](https://nodered.org/docs/user-guide/writing-functions#logging-events)
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [7 July 2022 14:54 UTC](https://discourse.nodered.org/t/how-do-i-add-user-defined-logs-in-log-file/64242/13 "2022-07-07T14:54:52Z")
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