Adding list items with SharePoint 2013 REST API

Question

I'm trying to add a new item in a existing list using SharePoint 2013 with the REST API.

There is pretty good documentation for this here: http://msdn.microsoft.com/en-us/library/jj164022(office.15).aspx#ListItems

The list I am trying to add items to is called "Resources", so I do the following http POST operation to add the new item:

POST https://<site>/apps/reserve/_api/lists/getbytitle('Resources')/items
    X-RequestDigest: <digest_key>
    Content-Type: application/json;odata=verbose

    {
        "__metadata":    {"type": "SP.Data.ResourcesListItem"},
        "Title":         "New Title",
        "Description":   "New Description",
        "Location":      "Sunnyvale"
    }

But I get back the following error:

A type named 'SP.Data.ResourcesListItem' could not be resolved by the model.
When a model is available, each type name must resolve to a valid type.

So I presume I don't have the correct name for the name for the resource. In the documentation, it says:

To do this operation, you must know the ListItemEntityTypeFullName property of the list
and pass that as the value of type in the HTTP request body.

But I don't know how to get the ListItemEntityTypeFullName for my list, and the documentation does not seem explain how-- I copied the pattern from the doc (SP.Data.< LIST_NAME >ListItem") but I guess that is not right.

How can I find the name for my list?

kimon · Accepted Answer · 2013-02-09 21:44:35Z

24

You can get the name as follows:

GET https://<site>/apps/reserve/_api/lists/getbytitle('Resources')?$select=ListItemEntityTypeFullName

The list name will be under: content -> m:properties -> d:ListItemEntityTypeFullName

answered Feb 9, 2013 at 21:44

kimon

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2 Comments

Jerzakie Over a year ago

Once you know the Entity type is there any way to find out what properties are part of that type? I'm having an issue where I am getting an error: "The property 'MyColumn' does not exist on type 'SP.Data.MyListListItem'. Make sure to only use property names that are defined by the type." MyColumn is part of MyList's default ContentType

vapcguy Over a year ago

@Jerzakie Most likely you're using a display name of the column instead of the original. You can do 2 things to find the original: 1) look under List Settings > hover over/select the field. The URL will have something like Field=SomeName. SomeName is what you want. 2) If you don't have access to the List Settings, you can go to http://yoursite/_vti_bin/listdata.svc/ListName (SP 2010) or http://yoursite/_api/Web/Lists/GetByTitle('ListName') (SP 2013+). The field names will be under <feed><entry><content><m:properties><d:SomeName>Your Display Name</d:SomeName> (in 2013+: omit <feed>).

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