Do we need MethodRouter::route_layer?

[zishon]

I am learning middleware of axum, as MethodRouter::layer is always bind to a specific method_router.

And the document says:

This works similarly to MethodRouter::layer except the middleware will only run if the request matches a route.

So I wonder in what case rather using MethodRouter::route_layer than MethodRouter::layer?

[davidpdrsn]

We do. Middleware’s added with layer also run for the fallback. If you don’t want that you can use route_layer.

Same applies for Router

[zishon]

Now I get the difference of this two, thanks.

[zishon]

Is it necessary to update the document here MethodRouter::route_layer to make the difference between layer and route_layer more pronounced?

[davidpdrsn]

I don’t think so but you’re welcome to submit a PR.