# Trouble creating user with custom user fields with the API
**URL:** https://meta.discourse.org/t/trouble-creating-user-with-custom-user-fields-with-the-api/148434
**Category:** Support
**Created:** [April 18, 2020, 11:47am UTC](https://meta.discourse.org/t/trouble-creating-user-with-custom-user-fields-with-the-api/148434 "2020-04-18T11:47:58Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@NathanLei](https://meta.discourse.org/u/NathanLei)
#### Post date: [April 18, 2020, 11:47am UTC](https://meta.discourse.org/t/trouble-creating-user-with-custom-user-fields-with-the-api/148434/1 "2020-04-18T11:47:58Z")
When I try to create a user via API with “user\_fields[1]”. which is the customer field.
When I do the testing via postman, it works fine.
but When I tried it via code. it never works. so wired.
here is my payload
```
{
"name": "asdsd",
"email": "sd1sf@asasas.com",
"password": "b366202d-fcc4-46da-9fed-cd57348f2ad2",
"username": "wED18oxlz3",
"active": true,
"approved": false,
"user_fields[1]": "huhsdsd",
"user_fields[2]": "huhsdsdhuhsdsdhuhsdsd"
},
```
same payload works on postman.
I belive it related with the format of user\_fields[1] .
---
### Author:  [@NathanLei](https://meta.discourse.org/u/NathanLei)
#### Post date: [April 28, 2020, 5:26am UTC](https://meta.discourse.org/t/trouble-creating-user-with-custom-user-fields-with-the-api/148434/2 "2020-04-28T05:26:47Z")
I have finally solved by myself.
1 make sure using.
> ‘Content-Type’: ‘multipart/form-data’,
as the header
2 make sure your form data is a JSON string . not an object.
I use nodejs, and. I need qs.Stringify my params.
---
### Author:  [@system](https://meta.discourse.org/u/system)
#### Post date: [May 28, 2020, 5:26am UTC](https://meta.discourse.org/t/trouble-creating-user-with-custom-user-fields-with-the-api/148434/3 "2020-05-28T05:26:53Z")
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