Incorrect value for the content-type for Update list item

[mahajangaurav]

The value of the Content-Type header in the Update list item example is incorrect.
It should be: "application/json;odata=verbose"
instead of "application/json"

Sending just application/json results in an error as mentioned in this stack exchange: https://sharepoint.stackexchange.com/questions/239169/the-property-metadata-does-not-exist-on-type-sp-data

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Document Details

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• ID: e5a8f160-c2fd-8692-1c3f-2c5c44c7a286
• Version Independent ID: 2d7064f8-409c-4465-3fbb-bd6a4c2806f5
• Content: Working with lists and list items with REST
• Content Source: docs/sp-add-ins/working-with-lists-and-list-items-with-rest.md
• Product: sharepoint
• GitHub Login: @VesaJuvonen
• Microsoft Alias: vesaj

Thank you for reporting this issue. We will be triaging your incoming issue as soon as possible.

[Jerry0527]

Yes, should use contentType: "application/json;odata=verbose", otherwise will return 400 error:

            var listName = "Employee";
            var listItemId = 8;
            var item = {
                "__metadata": { "type": 'SP.Data.'+ listName +'ListItem' },
                "Title": "value change"
            };

            $.ajax({
                url: _spPageContextInfo.siteAbsoluteUrl + "/_api/web/lists/getbytitle('" + listName + "')/items(" + listItemId + ")",
                type: "POST",
                contentType: "application/json;odata=verbose",
                data: JSON.stringify(item),
                headers: {
                    "Accept": "application/json;odata=verbose",
                    "X-RequestDigest": $("#__REQUESTDIGEST").val(),
                    "X-HTTP-Method": "MERGE",
                    "If-Match": "*"
                },
                success: function (data) {
                    alert('Success');
                    
                },
                error: function (data) {
                    alert("Error");

                }
            });

[mahajangaurav]

Hi Jerry!
Yes, I am aware of the fix now but the issue was more directed towards fixing the documentation here: Update list item

Thanks!

[Jerry0527]

May need moderator to push update in the documentation.

[andrewconnell]

Sharing is caring :) we welcome community contributions to the docs ;) Care you submit a PR fixing the issue?

[mahajangaurav]

would love to! Thanks @andrewconnell