WebGear.Core.Trait.Method

Traits and middlewares to handle HTTP methods.

Documentation

newtype Method

A Trait for capturing the HTTP method of a request

Constructors

Method StdMethod

Instances

TraitAbsence Method Request

Defined in WebGear.Core.Trait.Method

Associated Types

type Absence Method Request

Trait Method Request

Defined in WebGear.Core.Trait.Method

Associated Types

type Attribute Method Request

type Absence Method Request

Defined in WebGear.Core.Trait.Method

type Absence Method Request = MethodMismatch

type Attribute Method Request

Defined in WebGear.Core.Trait.Method

type Attribute Method Request = StdMethod

data MethodMismatch

Failure to match method against an expected value

Constructors

MethodMismatch

Fields

• expectedMethod :: Method
• actualMethod :: Method

method :: (Get h Method Request, ArrowChoice h, ArrowError RouteMismatch h) => StdMethod -> Middleware h req (Method ': req)

Check whether the request has a specified HTTP method.

Example usage:

method @GET handler

If the request does not have the specified method, another handler will be tried.

It is also idiomatic to use the template haskell quasiquoter match or route in cases where both an HTTP method and a path need to be matched.