servant-docs-0.11.8: generate API docs for your servant webservice
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LanguageHaskell2010

Servant.Docs.Internal

Contents

Synopsis

Documentation

data Endpoint Source #

An Endpoint type that holds the path and the method.

Gets used as the key in the API hashmap. Modify defEndpoint or any Endpoint value you want using the path and method lenses to tweak.

>>> defEndpoint
"GET" /
>>> defEndpoint & path <>~ ["foo"]
"GET" /foo
>>> defEndpoint & path <>~ ["foo"] & method .~ HTTP.methodPost
"POST" /foo

Constructors

Endpoint 

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Eq Endpoint Source # 
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Ord Endpoint Source # 
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Show Endpoint Source # 
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Generic Endpoint Source # 
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Associated Types

type Rep Endpoint :: Type -> Type #

Methods

from :: Endpoint -> Rep Endpoint x #

to :: Rep Endpoint x -> Endpoint #

Hashable Endpoint Source # 
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hashWithSalt :: Int -> Endpoint -> Int #

hash :: Endpoint -> Int #

type Rep Endpoint Source # 
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type Rep Endpoint = D1 ('MetaData "Endpoint" "Servant.Docs.Internal" "servant-docs-0.11.8-GZ2W0Bz0Rym5oCTLVgq6S2" 'False) (C1 ('MetaCons "Endpoint" 'PrefixI 'True) (S1 ('MetaSel ('Just "_path") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [String]) :*: S1 ('MetaSel ('Just "_method") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Method)))

showPath :: [String] -> String Source #

Render a path as a /-delimited string

defEndpoint :: Endpoint Source #

An Endpoint whose path is `"/"` and whose method is GET

Here's how you can modify it:

>>> defEndpoint
"GET" /
>>> defEndpoint & path <>~ ["foo"]
"GET" /foo
>>> defEndpoint & path <>~ ["foo"] & method .~ HTTP.methodPost
"POST" /foo

data API Source #

Our API documentation type, a product of top-level information and a good old hashmap from Endpoint to Action

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Eq API Source # 
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(==) :: API -> API -> Bool #

(/=) :: API -> API -> Bool #

Show API Source # 
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showsPrec :: Int -> API -> ShowS #

show :: API -> String #

showList :: [API] -> ShowS #

Semigroup API Source # 
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(<>) :: API -> API -> API #

sconcat :: NonEmpty API -> API #

stimes :: Integral b => b -> API -> API #

Monoid API Source # 
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mempty :: API #

mappend :: API -> API -> API #

mconcat :: [API] -> API #

emptyAPI :: API Source #

An empty API

data DocCapture Source #

A type to represent captures. Holds the name of the capture and a description.

Write a ToCapture instance for your captured types.

Constructors

DocCapture 

data DocQueryParam Source #

A type to represent a GET (or other possible Method) parameter from the Query String. Holds its name, the possible values (leave empty if there isn't a finite number of them), and a description of how it influences the output or behavior.

Write a ToParam instance for your GET parameter types

data DocFragment Source #

A type to represent fragment. Holds the name of the fragment and its description.

Write a ToFragment instance for your fragment types.

Constructors

DocFragment 

combineFragment :: Maybe DocFragment -> Maybe DocFragment -> Maybe DocFragment Source #

There should be at most one Fragment per API endpoint. So here we are keeping the first occurrence.

data DocIntro Source #

An introductory paragraph for your documentation. You can pass these to docsWithIntros.

Constructors

DocIntro 

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Eq DocIntro Source # 
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Ord DocIntro Source # 
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Show DocIntro Source # 
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data DocNote Source #

A type to represent extra notes that may be attached to an Action.

This is intended to be used when writing your own HasDocs instances to add extra sections to your endpoint's documentation.

Constructors

DocNote 

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Eq DocNote Source # 
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(==) :: DocNote -> DocNote -> Bool #

(/=) :: DocNote -> DocNote -> Bool #

Ord DocNote Source # 
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Show DocNote Source # 
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newtype ExtraInfo api Source #

Type of extra information that a user may wish to "union" with their documentation.

These are intended to be built using extraInfo. Multiple ExtraInfo may be combined with the monoid instance.

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Semigroup (ExtraInfo a) Source # 
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(<>) :: ExtraInfo a -> ExtraInfo a -> ExtraInfo a #

sconcat :: NonEmpty (ExtraInfo a) -> ExtraInfo a #

stimes :: Integral b => b -> ExtraInfo a -> ExtraInfo a #

Monoid (ExtraInfo a) Source # 
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data DocOptions Source #

Documentation options.

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DocOptions 

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Show DocOptions Source # 
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defaultDocOptions :: DocOptions Source #

Default documentation options.

data ParamKind Source #

Type of GET (or other Method) parameter:

  • Normal corresponds to QueryParam, i.e your usual GET parameter
  • List corresponds to QueryParams, i.e GET parameters with multiple values
  • Flag corresponds to QueryFlag, i.e a value-less GET parameter

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Normal 
List 
Flag 

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Eq ParamKind Source # 
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Ord ParamKind Source # 
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Show ParamKind Source # 
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data Response Source #

A type to represent an HTTP response. Has an Int status, a list of possible MediaTypes, and a list of example ByteString response bodies. Tweak defResponse using the respStatus, respTypes and respBody lenses if you want.

If you want to respond with a non-empty response body, you'll most likely want to write a ToSample instance for the type that'll be represented as encoded data in the response.

Can be tweaked with four lenses.

>>> defResponse
Response {_respStatus = 200, _respTypes = [], _respBody = [], _respHeaders = []}
>>> defResponse & respStatus .~ 204 & respBody .~ [("If everything goes well", "application/json", "{ \"status\": \"ok\" }")]
Response {_respStatus = 204, _respTypes = [], _respBody = [("If everything goes well",application/json,"{ \"status\": \"ok\" }")], _respHeaders = []}

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Eq Response Source # 
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Ord Response Source # 
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Show Response Source # 
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combineResponse :: Response -> Response -> Response Source #

Combine two Responses, we can't make a monoid because merging Status breaks the laws.

As such, we invent a non-commutative, left associative operation combineResponse to mush two together taking the status from the very left.

defResponse :: Response Source #

Default response: status code 200, no response body.

Can be tweaked with four lenses.

>>> defResponse
Response {_respStatus = 200, _respTypes = [], _respBody = [], _respHeaders = []}
>>> defResponse & respStatus .~ 204
Response {_respStatus = 204, _respTypes = [], _respBody = [], _respHeaders = []}

data Action Source #

A datatype that represents everything that can happen at an endpoint, with its lenses:

  • List of captures (captures)
  • List of GET (or other Method) parameters (params)
  • What the request body should look like, if any is requested (rqbody)
  • What the response should be if everything goes well (response)

You can tweak an Action (like the default defAction) with these lenses to transform an action and add some information to it.

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Eq Action Source # 
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(==) :: Action -> Action -> Bool #

(/=) :: Action -> Action -> Bool #

Ord Action Source # 
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Show Action Source # 
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combineAction :: Action -> Action -> Action Source #

Combine two Actions, we can't make a monoid as merging Response breaks the laws.

As such, we invent a non-commutative, left associative operation combineAction to mush two together taking the response from the very left.

defAction :: Action Source #

Default Action. Has no captures, no query params, expects no request body (rqbody) and the typical response is defResponse.

Tweakable with lenses.

>>> defAction
Action {_authInfo = [], _captures = [], _headers = [], _params = [], _fragment = Nothing, _notes = [], _mxParams = [], _rqtypes = [], _rqbody = [], _response = Response {_respStatus = 200, _respTypes = [], _respBody = [], _respHeaders = []}}
>>> defAction & response.respStatus .~ 201
Action {_authInfo = [], _captures = [], _headers = [], _params = [], _fragment = Nothing, _notes = [], _mxParams = [], _rqtypes = [], _rqbody = [], _response = Response {_respStatus = 201, _respTypes = [], _respBody = [], _respHeaders = []}}

single :: Endpoint -> Action -> API Source #

Create an API that's comprised of a single endpoint. API is a Monoid, so combine multiple endpoints with mappend or <>.

data ShowContentTypes Source #

How many content-types for each example should be shown?

Since: 0.11.1

Constructors

AllContentTypes

For each example, show each content type.

FirstContentType

For each example, show only one content type.

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Bounded ShowContentTypes Source # 
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Enum ShowContentTypes Source # 
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Eq ShowContentTypes Source # 
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Ord ShowContentTypes Source # 
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Read ShowContentTypes Source # 
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Show ShowContentTypes Source # 
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data RenderingOptions Source #

Customise how an API is converted into documentation.

Since: 0.11.1

Constructors

RenderingOptions 

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Show RenderingOptions Source # 
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defRenderingOptions :: RenderingOptions Source #

Default API generation options.

All content types are shown for both requestExamples and responseExamples; notesHeading is set to Nothing (i.e. un-grouped).

Since: 0.11.1

docs :: HasDocs api => Proxy api -> API Source #

Generate the docs for a given API that implements HasDocs. This is the default way to create documentation.

docs == docsWithOptions defaultDocOptions

docsWithOptions :: HasDocs api => Proxy api -> DocOptions -> API Source #

Generate the docs for a given API that implements HasDocs.

extraInfo :: (IsIn endpoint api, HasLink endpoint, HasDocs endpoint) => Proxy endpoint -> Action -> ExtraInfo api Source #

Create an ExtraInfo that is guaranteed to be within the given API layout.

The safety here is to ensure that you only add custom documentation to an endpoint that actually exists within your API.

extra :: ExtraInfo TestApi
extra =
    extraInfo (Proxy :: Proxy ("greet" :> Capture "greetid" Text :> Delete)) $
             defAction & headers <>~ ["unicorns"]
                       & notes   <>~ [ DocNote "Title" ["This is some text"]
                                     , DocNote "Second section" ["And some more"]
                                     ]

docsWith :: HasDocs api => DocOptions -> [DocIntro] -> ExtraInfo api -> Proxy api -> API Source #

Generate documentation given some extra introductions (in the form of DocInfo) and some extra endpoint documentation (in the form of ExtraInfo.

The extra introductions will be prepended to the top of the documentation, before the specific endpoint documentation. The extra endpoint documentation will be "unioned" with the automatically generated endpoint documentation.

You are expected to build up the ExtraInfo with the Monoid instance and extraInfo.

If you only want to add an introduction, use docsWithIntros.

docsWithIntros :: HasDocs api => [DocIntro] -> Proxy api -> API Source #

Generate the docs for a given API that implements HasDocs with with any number of introduction(s)

class HasDocs api where Source #

The class that abstracts away the impact of API combinators on documentation generation.

Methods

docsFor :: Proxy api -> (Endpoint, Action) -> DocOptions -> API Source #

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HasDocs Raw Source # 
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HasDocs EmptyAPI Source #

The generated docs for EmptyAPI are empty.

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ReflectMethod method => HasDocs (NoContentVerb method :: Type) Source # 
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(HasDocs a, HasDocs b) => HasDocs (a :<|> b :: Type) Source #

The generated docs for a :<|> b just appends the docs for a with the docs for b.

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docsFor :: Proxy (a :<|> b) -> (Endpoint, Action) -> DocOptions -> API Source #

HasDocs api => HasDocs (WithNamedContext name context api :: Type) Source # 
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docsFor :: Proxy (WithNamedContext name context api) -> (Endpoint, Action) -> DocOptions -> API Source #

HasDocs api => HasDocs (HttpVersion :> api :: Type) Source # 
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(HasDocs api, Accept ctype) => HasDocs (StreamBody' mods framing ctype a :> api :: Type) Source #

TODO: this instance is incomplete.

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docsFor :: Proxy (StreamBody' mods framing ctype a :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(ToSample a, AllMimeRender (ct ': cts) a, HasDocs api) => HasDocs (ReqBody' mods (ct ': cts) a :> api :: Type) Source # 
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docsFor :: Proxy (ReqBody' mods (ct ': cts) a :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

HasDocs api => HasDocs (RemoteHost :> api :: Type) Source # 
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(KnownSymbol sym, ToParam (QueryParam' mods sym a), HasDocs api) => HasDocs (QueryParam' mods sym a :> api :: Type) Source # 
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docsFor :: Proxy (QueryParam' mods sym a :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(KnownSymbol sym, ToParam (QueryParams sym a), HasDocs api) => HasDocs (QueryParams sym a :> api :: Type) Source # 
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docsFor :: Proxy (QueryParams sym a :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(KnownSymbol sym, ToParam (QueryFlag sym), HasDocs api) => HasDocs (QueryFlag sym :> api :: Type) Source # 
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docsFor :: Proxy (QueryFlag sym :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(KnownSymbol sym, HasDocs api) => HasDocs (Header' mods sym a :> api :: Type) Source # 
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docsFor :: Proxy (Header' mods sym a :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

HasDocs api => HasDocs (IsSecure :> api :: Type) Source # 
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(ToFragment (Fragment a), HasDocs api) => HasDocs (Fragment a :> api :: Type) Source # 
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docsFor :: Proxy (Fragment a :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(KnownSymbol desc, HasDocs api) => HasDocs (Summary desc :> api :: Type) Source # 
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docsFor :: Proxy (Summary desc :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(KnownSymbol desc, HasDocs api) => HasDocs (Description desc :> api :: Type) Source # 
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docsFor :: Proxy (Description desc :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(KnownSymbol sym, ToCapture (Capture sym a), HasDocs api) => HasDocs (Capture' mods sym a :> api :: Type) Source #

"books" :> Capture "isbn" Text will appear as books:isbn in the docs.

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docsFor :: Proxy (Capture' mods sym a :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(KnownSymbol sym, ToCapture (CaptureAll sym a), HasDocs sublayout) => HasDocs (CaptureAll sym a :> sublayout :: Type) Source #

"books" :> CaptureAll "isbn" Text will appear as books:isbn in the docs.

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docsFor :: Proxy (CaptureAll sym a :> sublayout) -> (Endpoint, Action) -> DocOptions -> API Source #

(ToAuthInfo (BasicAuth realm usr), HasDocs api) => HasDocs (BasicAuth realm usr :> api :: Type) Source # 
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docsFor :: Proxy (BasicAuth realm usr :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

HasDocs api => HasDocs (Vault :> api :: Type) Source # 
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docsFor :: Proxy (Vault :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(KnownSymbol path, HasDocs api) => HasDocs (path :> api :: Type) Source # 
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docsFor :: Proxy (path :> api) -> (Endpoint, Action) -> DocOptions -> API Source #

(ToSample a, AllMimeRender (ct ': cts) a, KnownNat status, ReflectMethod method) => HasDocs (Verb method status (ct ': cts) a :: Type) Source # 
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docsFor :: Proxy (Verb method status (ct ': cts) a) -> (Endpoint, Action) -> DocOptions -> API Source #

(ToSample a, AllMimeRender (ct ': cts) a, KnownNat status, ReflectMethod method, AllHeaderSamples ls, GetHeaders (HList ls)) => HasDocs (Verb method status (ct ': cts) (Headers ls a) :: Type) Source # 
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docsFor :: Proxy (Verb method status (ct ': cts) (Headers ls a)) -> (Endpoint, Action) -> DocOptions -> API Source #

(Accept ct, KnownNat status, ReflectMethod method) => HasDocs (Stream method status framing ct a :: Type) Source #

TODO: mention the endpoint is streaming, its framing strategy

Also there are no samples.

TODO: AcceptFraming for content-type

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docsFor :: Proxy (Stream method status framing ct a) -> (Endpoint, Action) -> DocOptions -> API Source #

class ToSample a where Source #

The class that lets us display a sample input or output in the supported content-types when generating documentation for endpoints that either:

  • expect a request body, or
  • return a non empty response body

Example of an instance:

{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE OverloadedStrings #-}

import Data.Aeson
import Data.Text
import GHC.Generics

data Greet = Greet { _msg :: Text }
  deriving (Generic, Show)

instance FromJSON Greet
instance ToJSON Greet

instance ToSample Greet where
  toSamples _ = singleSample g

    where g = Greet "Hello, haskeller!"

You can also instantiate this class using toSamples instead of toSample: it lets you specify different responses along with some context (as Text) that explains when you're supposed to get the corresponding response.

Minimal complete definition

Nothing

Methods

toSamples :: Proxy a -> [(Text, a)] Source #

default toSamples :: (Generic a, GToSample (Rep a)) => Proxy a -> [(Text, a)] Source #

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ToSample Bool Source # 
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toSamples :: Proxy Bool -> [(Text, Bool)] Source #

ToSample Ordering Source # 
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ToSample All Source # 
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toSamples :: Proxy All -> [(Text, All)] Source #

ToSample Any Source # 
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toSamples :: Proxy Any -> [(Text, Any)] Source #

ToSample NoContent Source # 
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ToSample a => ToSample [a] Source # 
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toSamples :: Proxy [a] -> [(Text, [a])] Source #

ToSample a => ToSample (Maybe a) Source # 
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toSamples :: Proxy (Maybe a) -> [(Text, Maybe a)] Source #

ToSample a => ToSample (ZipList a) Source # 
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toSamples :: Proxy (ZipList a) -> [(Text, ZipList a)] Source #

ToSample a => ToSample (First a) Source # 
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toSamples :: Proxy (First a) -> [(Text, First a)] Source #

ToSample a => ToSample (Last a) Source # 
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toSamples :: Proxy (Last a) -> [(Text, Last a)] Source #

ToSample a => ToSample (Dual a) Source # 
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toSamples :: Proxy (Dual a) -> [(Text, Dual a)] Source #

ToSample a => ToSample (Sum a) Source # 
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toSamples :: Proxy (Sum a) -> [(Text, Sum a)] Source #

ToSample a => ToSample (Product a) Source # 
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toSamples :: Proxy (Product a) -> [(Text, Product a)] Source #

ToSample a => ToSample (NonEmpty a) Source # 
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toSamples :: Proxy (NonEmpty a) -> [(Text, NonEmpty a)] Source #

(ToSample a, ToSample b) => ToSample (Either a b) Source # 
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toSamples :: Proxy (Either a b) -> [(Text, Either a b)] Source #

(ToSample a, ToSample b) => ToSample (a, b) Source # 
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toSamples :: Proxy (a, b) -> [(Text, (a, b))] Source #

(ToSample a, ToSample b, ToSample c) => ToSample (a, b, c) Source # 
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toSamples :: Proxy (a, b, c) -> [(Text, (a, b, c))] Source #

ToSample a => ToSample (Const a b) Source # 
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toSamples :: Proxy (Const a b) -> [(Text, Const a b)] Source #

(ToSample a, ToSample b, ToSample c, ToSample d) => ToSample (a, b, c, d) Source # 
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toSamples :: Proxy (a, b, c, d) -> [(Text, (a, b, c, d))] Source #

(ToSample a, ToSample b, ToSample c, ToSample d, ToSample e) => ToSample (a, b, c, d, e) Source # 
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toSamples :: Proxy (a, b, c, d, e) -> [(Text, (a, b, c, d, e))] Source #

(ToSample a, ToSample b, ToSample c, ToSample d, ToSample e, ToSample f) => ToSample (a, b, c, d, e, f) Source # 
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toSamples :: Proxy (a, b, c, d, e, f) -> [(Text, (a, b, c, d, e, f))] Source #

(ToSample a, ToSample b, ToSample c, ToSample d, ToSample e, ToSample f, ToSample g) => ToSample (a, b, c, d, e, f, g) Source # 
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toSamples :: Proxy (a, b, c, d, e, f, g) -> [(Text, (a, b, c, d, e, f, g))] Source #

toSample :: forall a. ToSample a => Proxy a -> Maybe a Source #

Sample input or output (if there is at least one).

noSamples :: [(Text, a)] Source #

No samples.

singleSample :: a -> [(Text, a)] Source #

Single sample without description.

samples :: [a] -> [(Text, a)] Source #

Samples without documentation.

defaultSamples :: forall a. (Generic a, GToSample (Rep a)) => Proxy a -> [(Text, a)] Source #

Default sample Generic-based inputs/outputs.

class GToSample t where Source #

ToSample for Generics.

Note: we use combinators from Universe.Data.Helpers for more productive sample generation.

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gtoSamples :: proxy t -> [(Text, t x)] Source #

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GToSample (V1 :: k -> Type) Source # 
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gtoSamples :: forall proxy (x :: k0). proxy V1 -> [(Text, V1 x)] Source #

GToSample (U1 :: k -> Type) Source # 
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gtoSamples :: forall proxy (x :: k0). proxy U1 -> [(Text, U1 x)] Source #

(GToSample p, GToSample q) => GToSample (p :+: q :: k -> Type) Source # 
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gtoSamples :: forall proxy (x :: k0). proxy (p :+: q) -> [(Text, (p :+: q) x)] Source #

(GToSample p, GToSample q) => GToSample (p :*: q :: k -> Type) Source # 
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gtoSamples :: forall proxy (x :: k0). proxy (p :*: q) -> [(Text, (p :*: q) x)] Source #

ToSample a => GToSample (K1 i a :: k -> Type) Source # 
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gtoSamples :: forall proxy (x :: k0). proxy (K1 i a) -> [(Text, K1 i a x)] Source #

GToSample f => GToSample (M1 i a f :: k -> Type) Source # 
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gtoSamples :: forall proxy (x :: k0). proxy (M1 i a f) -> [(Text, M1 i a f x)] Source #

class AllHeaderSamples ls where Source #

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AllHeaderSamples ('[] :: [k]) Source # 
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(ToHttpApiData l, AllHeaderSamples ls, ToSample l, KnownSymbol h) => AllHeaderSamples (Header h l ': ls :: [Type]) Source # 
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allHeaderToSample :: Proxy (Header h l ': ls) -> [Header0] Source #

sampleByteString :: forall ct cts a. (ToSample a, AllMimeRender (ct ': cts) a) => Proxy (ct ': cts) -> Proxy a -> [(MediaType, ByteString)] Source #

Synthesise a sample value of a type, encoded in the specified media types.

sampleByteStrings :: forall ct cts a. (ToSample a, AllMimeRender (ct ': cts) a) => Proxy (ct ': cts) -> Proxy a -> [(Text, MediaType, ByteString)] Source #

Synthesise a list of sample values of a particular type, encoded in the specified media types.

class ToParam t where Source #

The class that helps us automatically get documentation for GET (or other Method) parameters.

Example of an instance:

instance ToParam (QueryParam' mods "capital" Bool) where
  toParam _ =
    DocQueryParam "capital"
                  ["true", "false"]
                  "Get the greeting message in uppercase (true) or not (false). Default is false."

class ToCapture c where Source #

The class that helps us automatically get documentation for URL captures.

Example of an instance:

instance ToCapture (Capture "name" Text) where
  toCapture _ = DocCapture "name" "name of the person to greet"

class ToAuthInfo a where Source #

The class that helps us get documentation for authenticated endpoints

class ToFragment t where Source #

The class that helps us get documentation for URL fragments.

Example of an instance:

instance ToFragment (Fragment a) where
  toFragment _ = DocFragment "fragment" "fragment description"

markdown :: API -> String Source #

Generate documentation in Markdown format for the given API.

This is equivalent to markdownWith defRenderingOptions.

markdownWith :: RenderingOptions -> API -> String Source #

Generate documentation in Markdown format for the given API using the specified options.

These options allow you to customise aspects such as:

  • Choose how many content-types for each request body example are shown with requestExamples.
  • Choose how many content-types for each response body example are shown with responseExamples.

For example, to only show the first content-type of each example:

  markdownWith (defRenderingOptions
                  & requestExamples  .~ FirstContentType
                  & responseExamples .~ FirstContentType )
               myAPI
  

Since: 0.11.1

Instances

>>> :set -XOverloadedStrings