PUT and DELETE methods return 404 in API Management

Question

In all APIs created in API Management (APIM), resources with PUT and DELETE methods return a 404 error, indicating that the resource does not exist. However, the GET and POST methods work perfectly.

When calling the backend directly, which is hosted on AKS, all methods work correctly.

Even TRACE works on GET and POST, but does not work on PUT and DELETE.

Note: To avoid typos, when testing the same resource that works with the POST method, when switching to PUT, it returns 404.

Answer 1

Hi @Marcelo Arnaldi,

Thank you for reaching out to MS Q&A.

To add inbound policy, follow below steps:

Firstly, In API section, Clicked on API and then on Design.

Then Clicked on Add Policy as below:

Then Clicked on Other Policies:

Then pasted below xml :

<policies>

    <inbound>

        <cors allow-credentials="true">

            <allowed-origins>

                <origin>https://URL</origin>

            </allowed-origins>

            <allowed-methods>

                <method>GET</method>

                <method>POST</method>

                <method>OPTIONS</method>

                <method>PUT</method>

            </allowed-methods>

            <allowed-headers>

                <header>*</header>

            </allowed-headers>

            <expose-headers>

                <header>*</header>

            </expose-headers>

        </cors>

    </inbound>

    <backend>

        <base />

    </backend>

    <outbound>

        <base />

    </outbound>

    <on-error>

        <base />

    </on-error>

</policies>

and then save it:

And also check, while you are sending PUT and DELETE request, make sure to give the correct path that the request has been configured with.

Check if there is any re-routing done, due to which you may face this issue. Also check the logs, so that you can get to know the what causing the real issue.

Hope this helps.

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