Inject dependencies into Filter classes ?

[benspeth]

Hello,

The need arises in my company to generate documentation for the async contracts used by our apps. I would like to use Saunter but a feature is missing in order to do that easily.

Here's a bit of context, we use a custom built Nuget to register contracts that are published and received through Service Bus (It's open source and available here). This Nuget is using IOptions pattern to handle its configuration and I would like to use those options to dynamically create channel and operation items. In order to do that, I would like to be able to inject said options into DocumentFilter, ChannelItemFilters and OperationFilters classes.

Is it doable ?

tl;dr : I would like to inject services into DocumentFilter, ChannelItemFilters and OperationFilters classes in order to generate documentation based on the internal state of my application.

[m-wild]

Not currently doable without some pretty ugly hacks (build the service provider manually during Startup)...

This should be possible to implement in a nice way, we just need a reference to the IApplicationBuilder.ApplicationServices which we can probably grab during the middleware registration (as this is already an extension on IApplicationBuilder).

I'll do some reading and see what the recommended approach is.

[benspeth]

Hello @tehmantra, any update on this ?

[m-wild]

Sorry, this one fell off my radar! I'll get something out over the weekend :)

[m-wild]

This is available in v0.8.0

services.AddAsyncApiSchemaGeneration(options =>
{
    options.AddOperationFilter<FooFilter>();
}

services.AddTransient<FooFilter>(); // remember to register the type too (not sure how to avoid this step)