Can't get folder and files details using sharepoint api request getting this error

Question

Using this request to get all data (folder and files from SharePoint)
https://tenant.sharepoint.com/_api/web/GetFolderByServerRelativeUrl('/Shared Documents')

Getting this error

{

"error": {

    "code": "-2147024891, System.UnauthorizedAccessException",

    "message": {

        "lang": "en-US",

        "value": "Attempted to perform an unauthorized operation."

    }

}

}

For every get request, we are getting this error.
We are trying to get folder and files data but we can't because of this unexpected error.
Give us any solution for this or any proper documentation about getting the folder and files data.

Answer 1

Hi @Purvesh Tejani

I found there is something missing in your url. The url should be like following. If you miss the /sites/xxxx,the api will get the library in the whole tenant, this will need global administrator

https://tenant.sharepoint.com/sites/xxxx/_api/web/GetFolderByServerRelativeUrl('/sites/xxxx/Shared Documents')

Please try to call the api again

Answer 2

Hi @Purvesh Tejani

This error means your account doesn't have the permission to the site. To retrieve folders and files you need permission to the library first. Please check permission in the url: /_layouts/15/user.aspx. If you don't have permission to the library. Please grant access in Library setting

And grant permission like following

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