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Update list item via SharePoint REST API

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Posted on by MichaelBoehnke

Dear community,

I am trying to set the Field "Title" in a list item to a new value by using the SP REST API. For reference, I followed the documentation about updating list items.

My update step looks like this

POST /[uri]/GetByTitle('Pages')/Items(8)

Headers
{
 "If-Match": "*",
 "X-HTTP-Method": "MERGE",
 "Accept": "application/json;odata=verbose",
 "Content-Type": "application/json"
}

Body
{
 '__metadata': {
 'type': 'SP.Data.PagesItem'
 },
 'Title': 'newTitle'
}

The response is

{
 "status": 400,
 "message": "The property '__metadata' does not exist on type 'SP.Data.PagesItem'. Make sure to only use property names that are defined by the type.\r\nclientRequestId: 6d32167d-5a15-44e4-8e22-0be00a17a2c9\r\nserviceRequestId: ce964a9f-b048-2000-6cd2-3e91db9c86af",
 "source": "[uri]/_api/web/lists/GetByTitle('Pages')/items(8)",
 "errors": [
 "-1",
 "Microsoft.SharePoint.Client.InvalidClientQueryException"
 ]
}

Strangely enough, when getting this item like so

GET [uri]/_api/web/lists/GetByTitle('Pages')/Items?$select=Id,%20Title,%20FileRef&$filter=FileRef%20eq%20%27[uri]/Pages/[pagename].aspx%27

I receive this

{
 "d": {
 "results": [
 {
 "__metadata": {
 "id": "24a84d64-f9f5-42f2-b487-43048e8d5889",
 "uri": "[uri]/_api/Web/Lists(guid'68025e38-a5b3-4181-be51-b3a7f737d373')/Items(8)",
 "etag": "\"191\"",
 "type": "SP.Data.PagesItem"
 },
 "Id": 8,
 "Title": "[pagetitle]",
 "ID": 8,
 "FileRef": "[uri]/[pagename].aspx"
 }
 ]
 }
}

This shows me, that there is indeed a property '__metadata' and the type 'SP.Data.PagesItem' is also correct. So why is it not working? 🙂

Thanks for your help,

Michael

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MichaelBoehnke 23 on at

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Thanks @GabrielStJohn for unblocking this topic 🙂

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fchopo 8,003 Moderator on at

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Hello @MichaelBoehnke
Have you tried to use 'type': 'SP.List' like it was a list item?
Hope it helps!
Ferran

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MichaelBoehnke 23 on at

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Hi @fchopo,

following your suggestion I've tried
{ '__metadata': { 'type': 'SP.List.ListItem' }, 'Title': '[pagetitle]' }
This gives me:
{ "status": 400, "message": "The property '__metadata' does not exist on type 'SP.Data.PagesItem'. Make sure to only use property names that are defined by the type.\r\nclientRequestId: 36078987-9442-43ad-b2f5-6bae7881192d\r\nserviceRequestId: a6f64a9f-800e-2000-6cd2-3be9992c4e5b", "source": "[uri]/_api/web/lists/GetByTitle('Pages')/items(8)", "errors": [ "-1", "Microsoft.SharePoint.Client.InvalidClientQueryException" ] }
so it looks like the "real" type for the list item is read and my type "SP.List.ListItem" in the request body is ignored.

This is really strange.

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fchopo 8,003 Moderator on at

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Hello @MichaelBoehnke
I've tried this in my environment and it is working on a list called "Expenses":

Could you check the values are similar in your case?
Hope it helps!
Ferran

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MichaelBoehnke 23 on at

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Dear @fchopo, I've changed the step as per your suggestion (please note that I have thus removed the accept header)

Now I get

{ "status": 400, "message": "A type named 'SP.Data.PagesListItem' could not be resolved by the model. When a model is available, each type name must resolve to a valid type.\r\nclientRequestId: 7183eedb-5e49-4eea-abd2-5661b3b66bae\r\nserviceRequestId: c8fc4a9f-b057-2000-03d0-e9b1821e8a58", "source": "https://[uri]/groups/653/_api/web/lists/GetByTitle('Pages')/items(8)", "errors": [ "-1", "Microsoft.SharePoint.Client.InvalidClientQueryException" ] }
If I change it back now to
{ "__metadata": { "type": "SP.Data.PagesItem" }, "Title": "newTitle" }
the flow just does not finish and runs forever. If I step into the running flow into this step I an see that there was at least one retry and there's an error message

I don't know if it's important, but what I am actually trying to achieve is changing the title of a classic SharePoint page (.aspx), which is under [uri]/Pages and should also be a list item of the 'Pages' list.

Thanks again!

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fchopo 8,003 Moderator on at

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Hello @MichaelBoehnke
I have used the following expression and it is working!
Hope it helps!
Ferran

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MichaelBoehnke 23 on at

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Dear @fchopo, still not working:
{ "message": "A type named 'SP.Data.SitePagesItem' could not be resolved by the model. When a model is available, each type name must resolve to a valid type.\r\nclientRequestId: 39b5278c-d39c-47f3-9b3f-cf6dd7ff32b5\r\nserviceRequestId: a3014b9f-70b0-2000-cb79-956bdc67fd31", "status": 400, "source": "[uri]/_api/web/lists/GetByTitle('Pages')/items(8)", "errors": [ "-1", "Microsoft.SharePoint.Client.InvalidClientQueryException" ] }
This error message looks right to me, as I am trying to edit an item in list 'Pages' and not 'SitePages' as in your example. Does your example work for you when you try it for a list item in list 'Pages'? Thanks!

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Verified answer

MichaelBoehnke 23 on at

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Dear @fchopo, it is working now! Turns out, I have to checkout the page first, set the title and then check it back in.

My renaming step has the following body now; as you can see the type is equal to the type of the list item

{ "__metadata": { "type": "SP.Data.PagesItem" }, "Title": "sdjkfslfjslfjslfjsldfjsfsdfsdfs" }
Thanks again for your time and help 🙂

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