Not able to rename folder using REST API using POSTMAN

Question

Hi All,

I am not Not to rename the folder using REST API using POSTMAN, Please refer to the below screenshot of my REQUEST

Answer 1

Hi MadhuSudanSingh-1785,

You need to set the Content-Type header as application/json;odata=verbose, as the below:

And the body:

{  
        "__metadata": {              
            "type": "SP.Data.Shared_x0020_DocumentsItem"  
        },  
        "FileLeafRef": "NewFolderName"  
}    

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Answer 2

The issue is that you're passing an ETag to the request. ETags (and other E-headers) are used to detect modifications. They are most often used for GET requests and allow a server (or proxy) to skip retrieval of the data if there has been no changes on the E-headers since the last request. It is a caching mechanism.

In your case you are passing an ETag probably from a previous GET. However by the time you make the request the object has been modified and therefore the tag doesn't match and it fails the call. This is a concurrency detection thing. Two solutions that I can see.

Option 1 update to the new ETag and try again. In your Postman screenshot it doesn't actually look like you're passing the ETag header so that might be the problem by itself. Set the header to whatever you got from the GET request and try again.

Option 2 is to not bother with the concurrency detection. Since you're just renaming a folder I would wager changes to it shouldn't matter. Therefore remove the If-Match header.