Author Archives: Dan

Azure Functions suddenly returning 403 when called from SPFx

Posted on April 4, 2025 by Dan

Microsoft has recently made a change to SharePoint Framework that might break existing solutions that use an Azure backend (e.g. a Function App) that is secured to only allow requests from SPFx apps. For us, our Azure Functions suddenly started … Continue reading →

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Securing an Azure Function with Entra ID and calling it from SPFx

Posted on February 7, 2025 by Dan

This post outlines how to limit access to an Azure Functions App so that only tenant users can access it, and how to then consume this function from an SPFx app in SharePoint. Updated: Use SharePoint Online Web Client Extensibility … Continue reading →

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Using emojis for easier JavaScript debugging

Posted on October 1, 2024 by Dan

I normally don’t care much for emojis, but lately I’ve found them to be helpful when working with JavaScript. The JavaScript console may not be the most elegant way to debug, but it’s the quickest and sometimes only reasonable way … Continue reading →

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Attaching a context menu to DetailsList column headers in Fluent UI

Posted on September 5, 2024 by Dan

I wanted to show a menu when clicking the column headers of a DetailsList, similar to how SharePoint does it. Fluent UI 8 does not have any built in support for this, so I had to figure out a way … Continue reading →

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Better cache management in ASP.Net Core (LazyCache/FusionCache)

Posted on June 17, 2024 by Dan

LazyCache and the newer FusionCache are two great libraries that simplifies working with caching in ASP.Net Core. Something I’ve often been missing though is the ability to dispose of the entire cache, not just single items. (My understanding is that … Continue reading →

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Modifying SharePoint list permissions with PnP Core

Posted on May 20, 2024 by Dan

Working with SharePoint permissions is not always straight forward. This code snippet is an exercise using PnP Core to modify permissions on lists with unique (broken) permissions. All assigned permissions are changed to read only, except for owners group of … Continue reading →

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Show React dialogs fluently with hooks and promises

Posted on May 9, 2023 by Dan

Suppose you have a React component that displays a modal dialog and returns the result:

The typical way to use it would be to have a state variable controlling if it should be displayed or not, and a function … Continue reading →

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A faster way to get effective permissions with PnP Core

Posted on March 17, 2023 by Dan

PnP Core SDK has built in functionality to get effective permissions for a user on a list item in SharePoint:

This is pretty slow; typically ~1000ms. So I tried calling the REST API directly instead:

Turns out this … Continue reading →

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Searching with Microsoft Graph Client Library for .NET

Posted on January 12, 2023 by Dan

Using the MS Graph SDK for .NET is convenient but I find the documentation and examples pretty lacking. So when wanted to use the Search endpoint it took me quite a while to figure out how to make it work. … Continue reading →

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Finding out what service created a SharePoint site

Posted on January 4, 2023 by Dan

SharePoint is the underpinning data storage for many Microsoft 365 services. Sites are are therefore created under the hood by many services. Sometimes it it useful to know from where a site was created. We can actually find this in … Continue reading →

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