How to update read-only field via API?

[Alibek Zhubanyshev]

I have to update custom field via API which is configured as read-only via screens. 

[Marc - Devoteam]

Hi @Alibek Zhubanyshev 

Is this a custom text field of the type read-only?

Also see: https://community.atlassian.com/t5/Jira-questions/Make-a-text-field-read-only-in-UI-but-ability-to-update-it-via/qaq-p/1779580

[Alibek Zhubanyshev]

standard description/summary, custom date field and custom text field

[Marc - Devoteam]

Hi @Alibek Zhubanyshev 

As you mention to @Nikola Perisic is correct, but if you want to edit it via the API.

It needs to be on the screen

[Alibek Zhubanyshev]

Yes, it needs to be on Edit screen, hence it is not read-only anymore.

[Marc - Devoteam]

Hi @Alibek Zhubanyshev 

You could use custom fields of the type Read-Only.

This field will always be read-only, but you can still update this field via the API.

[Alibek Zhubanyshev]

yes, but it is only for text field, what about date type field?

[Nikola Perisic]

Hi @Alibek Zhubanyshev 

You can try using the PUT method and the /rest/api/3/field/{fieldId} endpoint.

[Alibek Zhubanyshev]

PUT method doesn't work if the field is not in edit screen