The new OptionsValidator (for validating configuration values) is only run time (when first accessed) and not during startup?

[PureKrome]

With .NET 8, there is now the new way to read in configuration source data (data from config files or env vars, keyvault, etc) => using a new IOptionsValidator class. This is great because the options validation source generator can produce optimized validation code at compile time.

But the actual values are checked at run time when the IOptions instance is first 'required' .. and not during the OnStartup. which means, if a piece of code which requires some IOptions isn't 'called' for a while, then we don't know the configuration data is "bad".

Are there any plans to extend this to optionally wire this up to OnStartup? I noticed that there is an IStartUpValidator interface already.

Or maybe this exists and the documentation is lacking/missing mentioning this?

[gfoidl]

Did you see AddOptionsWithValidateOnStart?

Relevant issue for this: #89263

[gfoidl]

Where would I ask to see if a mention of the AddOptionsWithValidateOnStart should be mentioned in that doc?

At the bottom of the linked docs article is a link "Open a documentation issue", there you can file an issue (and as that's a valuable addition I'm pretty sure it's picked up).

[PureKrome]

thanks heaps @gfoidl - will do. 🍰 Ta mate!

[PureKrome]

Doc issue opened up here.

[gfoidl]

The link here is the comment itself. Here's the docs issue: dotnet/docs#39089
Thanks for filing it.

[PureKrome]

oh lol. soz. i copied the wrong link 😊 - thanks for pasting the right one! cheers!