kernel

HTTP Kernel

Core HTTP kernel types that define the middleware group classifications. Used to determine which middleware stack is applied to different types of routes.

Types

Middleware

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Middleware Type

A function that intercepts requests before they reach the handler. Can modify both the request and context, execute logic, and modify the response. Uses the ‘next’ callback to continue the chain with updated request and context.

pub type Middleware(context) =
  fn(
    request.Request(wisp.Connection),
    context,
    fn(request.Request(wisp.Connection), context) -> response.Response(
      wisp.Body,
    ),
  ) -> response.Response(wisp.Body)

MiddlewareGroup

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MiddlewareGroup Type

Defines the type of middleware stack to apply to routes. Web routes use HTML error responses and serve static files, while Api routes use JSON error responses. Custom groups allow for application-specific middleware configurations.

pub type MiddlewareGroup {
  Web
  Api
  Custom(String)
}

Constructors

```
Web
```
```
Api
```
```
Custom(String)
```

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Next Type

A type alias for request handler functions that accept a request and context, and return a response. This is the signature used by controllers and the ‘next’ callback in middleware.

This type is commonly used when defining middleware, as the ‘next’ parameter has this signature.

pub type Next(context) =
  fn(request.Request(wisp.Connection), context) -> response.Response(
    wisp.Body,
  )