# Manage import module in function
**URL:** https://discourse.nodered.org/t/manage-import-module-in-function/37010
**Category:** General
**Created:** [4 December 2020 15:19 UTC](https://discourse.nodered.org/t/manage-import-module-in-function/37010 "2020-12-04T15:19:49Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@NoSuchException](https://discourse.nodered.org/u/NoSuchException)
#### Post date: [4 December 2020 15:19 UTC](https://discourse.nodered.org/t/manage-import-module-in-function/37010/1 "2020-12-04T15:19:49Z")
Hi all,
I'm making a function to parse the msg files of outlook because node-red-contrib-mail-parse works only with eml file.
I'm using the module @kenjiuno/msgreader so I installed the module with npm in the node-red folder and I wrote in the settings.js the row msgreader:require('@kenjiuno/msgreader') in functionGlobalContext and I import it in my function node with const MsgReader = global.get('msgreader');
In a normal script this module can be imported with import MsgReader from '@kenjiuno/msgreader' and then it need to create the object with const testMsg = new MsgReader(msgFileBuffer).
In function Node I can't use import so I use const MsgReader = global.get('msgreader'); but the function try the error "TypeError: MsgReader is not a constructor" at the row const testMsg = new MsgReader(msgFileBuffer).
MsgReader is an export of the module @kenjiuno/msgreader so I modified const MsgReader = global.get('msgreader'); in const MsgReader = global.get('msgreader').MsgReader but I have the same error;
I think the problem is that the contruct import-from is not correctly interpreted by the global.get('msgreader') but I didn't understant how I can to translate import MsgReader from '@kenjiuno/msgreader' for node function of nodered.
Can you help me?
---
### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [4 December 2020 17:48 UTC](https://discourse.nodered.org/t/manage-import-module-in-function/37010/2 "2020-12-04T17:48:27Z")
> [@NoSuchException](#):
>
> @kenjiuno/msgreader
When facing problems like this, best to raise an issue in the authors github:
[Usage with node.js · Issue #5 · HiraokaHyperTools/msgreader (github.com)](https://github.com/HiraokaHyperTools/msgreader/issues/5)
---
### Author:  [@NoSuchException](https://discourse.nodered.org/u/NoSuchException)
#### Post date: [9 December 2020 10:25 UTC](https://discourse.nodered.org/t/manage-import-module-in-function/37010/3 "2020-12-09T10:25:17Z")
Great,
with the suggested workaround from the author it works good.
Thanks.
---
### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [9 December 2020 10:34 UTC](https://discourse.nodered.org/t/manage-import-module-in-function/37010/4 "2020-12-09T10:34:03Z")
Can you please share so that other people know what the resolution was?
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### Author:  [@NoSuchException](https://discourse.nodered.org/u/NoSuchException)
#### Post date: [9 December 2020 11:14 UTC](https://discourse.nodered.org/t/manage-import-module-in-function/37010/5 "2020-12-09T11:14:29Z")
Sure, my function is
```javascript
const MsgReaderOrExports = global.get('msgreader');
const MsgReader = MsgReaderOrExports.default || MsgReaderOrExports;
const testMsg = new MsgReader(msg.payload);
const testMsgInfo = testMsg.getFileData();
msg.payload = testMsgInfo;
return msg;
```
in the row `const testMsg = new MsgReader(msg.payload);` msg.payload is the binary of the file that I extract with other function by the file received with a POST call
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [23 December 2020 11:14 UTC](https://discourse.nodered.org/t/manage-import-module-in-function/37010/6 "2020-12-23T11:14:32Z")
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