REST API to create item with custom Created by and Modified by values in Sharepoint online

Question

Hi all,

I am using the below REST API to create item in Sharepoint . but i could not able to map the EDitor and Author field. Is there anything I need to change in REST API ?

URI: _api/web/lists/getbytitle('test')/items REST API BODY:

{
"__metadata": { "type": "SP.Data.TestListItem" },
"Title" : "Submited",
"AuthorId" : 9
}

Please advise.

Any snippets.

Answer 1

Hi @Gokulnath Palani [Teams] ,

That's not in the same rest api all. You need to make two rest api call to achieve this.

First, set the ReadOnlyField to false for created by field.

URI: _api/web/lists/getbytitle('test')/fields/getbytitle('Created By')
Body:

 {  
 "__metadata": { "type": "SP.FieldUser"},  
 "ReadOnlyField": false  
 }  

Then make another rest api call to create item in Sharepoint

URI: _api/web/lists/getbytitle('test')/items
BODY:

{  
"__metadata": { "type": "SP.Data.TestListItem" },  
"Title" : "Submited",  
"AuthorId" : 9  
}  

Answer 2

Hi @Gokulnath Palani [Teams] ,

By default, the ReadOnlyField attribute is true for fields Created By and Modified By in SharePoint. You could check it with the endpoint: /_api/web/lists/getbytitle('Mylist')/fields/getbytitle('Created By')

You need to set the ReadOnlyField to false to use custom Created by and Modified by values with the rest api:
Uri: /_api/web/lists/getbytitle('Mylist')/fields/getbytitle('Created By')

Body:  
    {  
    "__metadata": { "type": "SP.FieldUser"},  
    "ReadOnlyField": false  
    }  

Thus you could create item with custom Created by and Modified by values.

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Answer 3

Hi @MichaelHan-MSFT

Thanks for your reply. I getting "The parameter __metadata does not exist in method GetByTitle." error .

Is there anything i need to change?

Thanks

Body:
{
"__metadata": { "type": "SP.Data.TestListItem" },
"Title" : "Submited",
"__metadata": { "type": "SP.FieldUser"},
"ReadOnlyField": false,
"AuthorId" : 9

 }