License	BSD-3-Clause
Maintainer	Oleg Grenrus <oleg.grenrus@iki.fi>
Safe Haskell	None
Language	Haskell2010

GitHub.Request

Contents

A convenient execution of requests
Types
Request execution in IO
Helpers
- Preview
SSL

Description

This module provides data types and helper methods, which makes possible to build alternative API request intepreters in addition to provided IO functions.

Simple example using operational package. See samples/Operational/Operational.hs

type GithubMonad a = Program (GH.Request 'False) a

-- | Intepret GithubMonad value into IO
runMonad :: Manager -> GH.Auth -> GithubMonad a -> ExceptT GH.Error IO a
runMonad mgr auth m = case view m of
   Return a   -> return a
   req :>>= k -> do
       b <- ExceptT $ GH.executeRequestWithMgr mgr auth req
       runMonad mgr auth (k b)

-- | Lift request into Monad
githubRequest :: GH.Request 'False a -> GithubMonad a
githubRequest = singleton

Synopsis

github :: (AuthMethod am, GitHubRW req res) => am -> req -> res
github' :: GitHubRO req res => req -> res
class GitHubRW req res | req -> res
class GitHubRO req res | req -> res
type Request = GenRequest MtJSON
data GenRequest (mt :: MediaType *) (rw :: RW) a where
- Query :: Paths -> QueryString -> GenRequest mt rw a
- PagedQuery :: (a ~ t b, Foldable t, Semigroup a) => Paths -> QueryString -> FetchCount -> GenRequest mt rw a
- Command :: CommandMethod -> Paths -> ByteString -> GenRequest mt RW a
data CommandMethod
- = Post
- | Patch
- | Put
- | Delete
toMethod :: CommandMethod -> Method
type Paths = [Text]
type QueryString = [(ByteString, Maybe ByteString)]
executeRequest :: (AuthMethod am, ParseResponse mt a) => am -> GenRequest mt rw a -> IO (Either Error a)
executeRequestWithMgr :: (AuthMethod am, ParseResponse mt a) => Manager -> am -> GenRequest mt rw a -> IO (Either Error a)
executeRequestWithMgrAndRes :: (AuthMethod am, ParseResponse mt a) => Manager -> am -> GenRequest mt rw a -> IO (Either Error (Response a))
executeRequest' :: ParseResponse mt a => GenRequest mt RO a -> IO (Either Error a)
executeRequestWithMgr' :: ParseResponse mt a => Manager -> GenRequest mt RO a -> IO (Either Error a)
executeRequestMaybe :: (AuthMethod am, ParseResponse mt a) => Maybe am -> GenRequest mt RO a -> IO (Either Error a)
unsafeDropAuthRequirements :: GenRequest mt rw' a -> GenRequest mt rw a
class Accept (mt :: MediaType *) where
- contentType :: Tagged mt ByteString
- modifyRequest :: Tagged mt (Request -> Request)
class Accept mt => ParseResponse (mt :: MediaType *) a where
- parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged mt (m a)
makeHttpRequest :: forall am mt rw a m. (AuthMethod am, MonadThrow m, Accept mt) => Maybe am -> GenRequest mt rw a -> m Request
parseStatus :: MonadError Error m => StatusMap a -> Status -> m a
type StatusMap a = [(Int, a)]
getNextUrl :: Response a -> Maybe URI
performPagedRequest :: forall a m mt. (ParseResponse mt a, Semigroup a, MonadCatch m, MonadError Error m) => (Request -> m (Response ByteString)) -> (a -> Bool) -> Request -> Tagged mt (m (Response a))
parseResponseJSON :: (FromJSON a, MonadError Error m) => Response ByteString -> m a
class PreviewAccept p where
- previewContentType :: Tagged (MtPreview p) ByteString
- previewModifyRequest :: Tagged (MtPreview p) (Request -> Request)
class PreviewAccept p => PreviewParseResponse p a where
- previewParseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged (MtPreview p) (m a)
withOpenSSL :: IO a -> IO a
tlsManagerSettings :: ManagerSettings

A convenient execution of requests

github :: (AuthMethod am, GitHubRW req res) => am -> req -> res Source #

A convenience function to turn functions returning Request rw x, into functions returning IO (Either Error x).

>>> :t \auth -> github auth userInfoForR
\auth -> github auth userInfoForR
  :: AuthMethod am => am -> Name User -> IO (Either Error User)

>>> :t github pullRequestsForR
\auth -> github auth pullRequestsForR
  :: AuthMethod am =>
     am
     -> Name Owner
     -> Name Repo
     -> PullRequestMod
     -> FetchCount
     -> IO (Either Error (Data.Vector.Vector SimplePullRequest))

github' :: GitHubRO req res => req -> res Source #

Like github' but for RO i.e. read-only requests. Note that GitHub has low request limit for non-authenticated requests.

>>> :t github' userInfoForR
github' userInfoForR :: Name User -> IO (Either Error User)

class GitHubRW req res | req -> res Source #

A type-class implementing github.

Minimal complete definition

githubImpl

Instances

GitHubRW req res => GitHubRW (a -> req) (a -> res) Source #
Instance details Defined in GitHub.Request Methods githubImpl :: AuthMethod am => am -> (a -> req) -> a -> res
(ParseResponse mt req, res ~ Either Error req) => GitHubRW (GenRequest mt rw req) (IO res) Source #
Instance details Defined in GitHub.Request Methods githubImpl :: AuthMethod am => am -> GenRequest mt rw req -> IO res

class GitHubRO req res | req -> res Source #

A type-class implementing github'.

Minimal complete definition

githubImpl'

Instances

GitHubRO req res => GitHubRO (a -> req) (a -> res) Source #
Instance details Defined in GitHub.Request Methods githubImpl' :: (a -> req) -> a -> res
(ParseResponse mt req, res ~ Either Error req, rw ~ RO) => GitHubRO (GenRequest mt rw req) (IO res) Source #
Instance details Defined in GitHub.Request Methods githubImpl' :: GenRequest mt rw req -> IO res

Types

type Request = GenRequest MtJSON Source #

Most requests ask for JSON.

data GenRequest (mt :: MediaType *) (rw :: RW) a where Source #

Github request data type.

rw describes whether authentication is required. It's required for non-GET requests.
mt describes the media type, i.e. how the response should be interpreted.
a is the result type

Note: Request is not Functor on purpose.

Constructors

Query :: Paths -> QueryString -> GenRequest mt rw a
PagedQuery :: (a ~ t b, Foldable t, Semigroup a) => Paths -> QueryString -> FetchCount -> GenRequest mt rw a
Command	Command
Fields :: CommandMethod command -> Paths path -> ByteString body -> GenRequest mt RW a

Instances

Eq (GenRequest rw mt a) Source #
Instance details Defined in GitHub.Data.Request Methods (==) :: GenRequest rw mt a -> GenRequest rw mt a -> Bool # (/=) :: GenRequest rw mt a -> GenRequest rw mt a -> Bool #
Ord (GenRequest rw mt a) Source #
Instance details Defined in GitHub.Data.Request Methods compare :: GenRequest rw mt a -> GenRequest rw mt a -> Ordering # (<) :: GenRequest rw mt a -> GenRequest rw mt a -> Bool # (<=) :: GenRequest rw mt a -> GenRequest rw mt a -> Bool # (>) :: GenRequest rw mt a -> GenRequest rw mt a -> Bool # (>=) :: GenRequest rw mt a -> GenRequest rw mt a -> Bool # max :: GenRequest rw mt a -> GenRequest rw mt a -> GenRequest rw mt a # min :: GenRequest rw mt a -> GenRequest rw mt a -> GenRequest rw mt a #
Show (GenRequest rw mt a) Source #
Instance details Defined in GitHub.Data.Request Methods showsPrec :: Int -> GenRequest rw mt a -> ShowS # show :: GenRequest rw mt a -> String # showList :: [GenRequest rw mt a] -> ShowS #
Hashable (GenRequest rw mt a) Source #
Instance details Defined in GitHub.Data.Request Methods hashWithSalt :: Int -> GenRequest rw mt a -> Int # hash :: GenRequest rw mt a -> Int #
(ParseResponse mt req, res ~ Either Error req, rw ~ RO) => GitHubRO (GenRequest mt rw req) (IO res) Source #
Instance details Defined in GitHub.Request Methods githubImpl' :: GenRequest mt rw req -> IO res
(ParseResponse mt req, res ~ Either Error req) => GitHubRW (GenRequest mt rw req) (IO res) Source #
Instance details Defined in GitHub.Request Methods githubImpl :: AuthMethod am => am -> GenRequest mt rw req -> IO res

data CommandMethod Source #

Http method of requests with body.

Constructors

Post
Patch
Put
Delete

Instances

Bounded CommandMethod Source #
Instance details Defined in GitHub.Data.Request Methods minBound :: CommandMethod # maxBound :: CommandMethod #
Enum CommandMethod Source #
Instance details Defined in GitHub.Data.Request Methods succ :: CommandMethod -> CommandMethod # pred :: CommandMethod -> CommandMethod # toEnum :: Int -> CommandMethod # fromEnum :: CommandMethod -> Int # enumFrom :: CommandMethod -> [CommandMethod] # enumFromThen :: CommandMethod -> CommandMethod -> [CommandMethod] # enumFromTo :: CommandMethod -> CommandMethod -> [CommandMethod] # enumFromThenTo :: CommandMethod -> CommandMethod -> CommandMethod -> [CommandMethod] #
Eq CommandMethod Source #
Instance details Defined in GitHub.Data.Request Methods (==) :: CommandMethod -> CommandMethod -> Bool # (/=) :: CommandMethod -> CommandMethod -> Bool #
Data CommandMethod Source #
Instance details Defined in GitHub.Data.Request Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CommandMethod -> c CommandMethod # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CommandMethod # toConstr :: CommandMethod -> Constr # dataTypeOf :: CommandMethod -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CommandMethod) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CommandMethod) # gmapT :: (forall b. Data b => b -> b) -> CommandMethod -> CommandMethod # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CommandMethod -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CommandMethod -> r # gmapQ :: (forall d. Data d => d -> u) -> CommandMethod -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> CommandMethod -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> CommandMethod -> m CommandMethod # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CommandMethod -> m CommandMethod # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CommandMethod -> m CommandMethod #
Ord CommandMethod Source #
Instance details Defined in GitHub.Data.Request Methods compare :: CommandMethod -> CommandMethod -> Ordering # (<) :: CommandMethod -> CommandMethod -> Bool # (<=) :: CommandMethod -> CommandMethod -> Bool # (>) :: CommandMethod -> CommandMethod -> Bool # (>=) :: CommandMethod -> CommandMethod -> Bool # max :: CommandMethod -> CommandMethod -> CommandMethod # min :: CommandMethod -> CommandMethod -> CommandMethod #
Read CommandMethod Source #
Instance details Defined in GitHub.Data.Request Methods readsPrec :: Int -> ReadS CommandMethod # readList :: ReadS [CommandMethod] # readPrec :: ReadPrec CommandMethod # readListPrec :: ReadPrec [CommandMethod] #
Show CommandMethod Source #
Instance details Defined in GitHub.Data.Request Methods showsPrec :: Int -> CommandMethod -> ShowS # show :: CommandMethod -> String # showList :: [CommandMethod] -> ShowS #
Generic CommandMethod Source #
Instance details Defined in GitHub.Data.Request Associated Types type Rep CommandMethod :: Type -> Type # Methods from :: CommandMethod -> Rep CommandMethod x # to :: Rep CommandMethod x -> CommandMethod #
Hashable CommandMethod Source #
Instance details Defined in GitHub.Data.Request Methods hashWithSalt :: Int -> CommandMethod -> Int # hash :: CommandMethod -> Int #
type Rep CommandMethod Source #
Instance details Defined in GitHub.Data.Request type Rep CommandMethod = D1 (MetaData "CommandMethod" "GitHub.Data.Request" "github-0.26-NGv9yMkIfb3ssAFkCPufN" False) ((C1 (MetaCons "Post" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "Patch" PrefixI False) (U1 :: Type -> Type)) :+: (C1 (MetaCons "Put" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "Delete" PrefixI False) (U1 :: Type -> Type)))

toMethod :: CommandMethod -> Method Source #

type Paths = [Text] Source #

type QueryString = [(ByteString, Maybe ByteString)] Source #

Request query string

Request execution in IO

executeRequest :: (AuthMethod am, ParseResponse mt a) => am -> GenRequest mt rw a -> IO (Either Error a) Source #

Execute Request in IO

executeRequestWithMgr :: (AuthMethod am, ParseResponse mt a) => Manager -> am -> GenRequest mt rw a -> IO (Either Error a) Source #

Like executeRequest but with provided Manager.

executeRequestWithMgrAndRes :: (AuthMethod am, ParseResponse mt a) => Manager -> am -> GenRequest mt rw a -> IO (Either Error (Response a)) Source #

Execute request and return the last received Response.

Since: 0.24

executeRequest' :: ParseResponse mt a => GenRequest mt RO a -> IO (Either Error a) Source #

Like executeRequest but without authentication.

executeRequestWithMgr' :: ParseResponse mt a => Manager -> GenRequest mt RO a -> IO (Either Error a) Source #

Like executeRequestWithMgr but without authentication.

executeRequestMaybe :: (AuthMethod am, ParseResponse mt a) => Maybe am -> GenRequest mt RO a -> IO (Either Error a) Source #

Helper for picking between executeRequest and executeRequest'.

The use is discouraged.

unsafeDropAuthRequirements :: GenRequest mt rw' a -> GenRequest mt rw a Source #

Partial function to drop authentication need.

Helpers

class Accept (mt :: MediaType *) where Source #

Minimal complete definition

Nothing

Methods

contentType :: Tagged mt ByteString Source #

modifyRequest :: Tagged mt (Request -> Request) Source #

Instances

Accept (MtJSON :: MediaType Type) Source #
Instance details Defined in GitHub.Request Methods contentType :: Tagged MtJSON ByteString Source # modifyRequest :: Tagged MtJSON (Request -> Request) Source #
Accept (MtRaw :: MediaType Type) Source #
Instance details Defined in GitHub.Request Methods contentType :: Tagged MtRaw ByteString Source # modifyRequest :: Tagged MtRaw (Request -> Request) Source #
Accept (MtDiff :: MediaType Type) Source #
Instance details Defined in GitHub.Request Methods contentType :: Tagged MtDiff ByteString Source # modifyRequest :: Tagged MtDiff (Request -> Request) Source #
Accept (MtPatch :: MediaType Type) Source #
Instance details Defined in GitHub.Request Methods contentType :: Tagged MtPatch ByteString Source # modifyRequest :: Tagged MtPatch (Request -> Request) Source #
Accept (MtSha :: MediaType Type) Source #
Instance details Defined in GitHub.Request Methods contentType :: Tagged MtSha ByteString Source # modifyRequest :: Tagged MtSha (Request -> Request) Source #
Accept (MtStar :: MediaType Type) Source #
Instance details Defined in GitHub.Request Methods contentType :: Tagged MtStar ByteString Source # modifyRequest :: Tagged MtStar (Request -> Request) Source #
Accept (MtRedirect :: MediaType Type) Source #
Instance details Defined in GitHub.Request Methods contentType :: Tagged MtRedirect ByteString Source # modifyRequest :: Tagged MtRedirect (Request -> Request) Source #
Accept (MtStatus :: MediaType Type) Source #
Instance details Defined in GitHub.Request Methods contentType :: Tagged MtStatus ByteString Source # modifyRequest :: Tagged MtStatus (Request -> Request) Source #
Accept (MtUnit :: MediaType Type) Source #	Note: we don't ignore response status. We only accept any response body.
Instance details Defined in GitHub.Request Methods contentType :: Tagged MtUnit ByteString Source # modifyRequest :: Tagged MtUnit (Request -> Request) Source #
PreviewAccept p => Accept (MtPreview p) Source #
Instance details Defined in GitHub.Request Methods contentType :: Tagged (MtPreview p) ByteString Source # modifyRequest :: Tagged (MtPreview p) (Request -> Request) Source #

class Accept mt => ParseResponse (mt :: MediaType *) a where Source #

Methods

parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged mt (m a) Source #

Instances

FromJSON a => ParseResponse (MtJSON :: MediaType Type) a Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged MtJSON (m a) Source #
a ~ ByteString => ParseResponse (MtRaw :: MediaType Type) a Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged MtRaw (m a) Source #
a ~ ByteString => ParseResponse (MtDiff :: MediaType Type) a Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged MtDiff (m a) Source #
a ~ ByteString => ParseResponse (MtPatch :: MediaType Type) a Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged MtPatch (m a) Source #
a ~ ByteString => ParseResponse (MtSha :: MediaType Type) a Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged MtSha (m a) Source #
FromJSON a => ParseResponse (MtStar :: MediaType Type) a Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged MtStar (m a) Source #
b ~ URI => ParseResponse (MtRedirect :: MediaType Type) b Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged MtRedirect (m b) Source #
HasStatusMap a => ParseResponse (MtStatus :: MediaType Type) a Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged MtStatus (m a) Source #
a ~ () => ParseResponse (MtUnit :: MediaType Type) a Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged MtUnit (m a) Source #
PreviewParseResponse p a => ParseResponse (MtPreview p) a Source #
Instance details Defined in GitHub.Request Methods parseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged (MtPreview p) (m a) Source #

makeHttpRequest :: forall am mt rw a m. (AuthMethod am, MonadThrow m, Accept mt) => Maybe am -> GenRequest mt rw a -> m Request Source #

Create http-client Request.

for PagedQuery, the initial request is created.
for Status, the Request for underlying Request is created, status checking is modifying accordingly.

parseStatus :: MonadError Error m => StatusMap a -> Status -> m a Source #

Helper for handling of RequestStatus.

parseStatus :: StatusMap a -> Status -> Either Error a

type StatusMap a = [(Int, a)] Source #

getNextUrl :: Response a -> Maybe URI Source #

Query Link header with rel=next from the request headers.

performPagedRequest Source #

Arguments

:: (ParseResponse mt a, Semigroup a, MonadCatch m, MonadError Error m)
=> (Request -> m (Response ByteString))	`httpLbs` analogue
-> (a -> Bool)	predicate to continue iteration
-> Request	initial request
-> Tagged mt (m (Response a))

Helper for making paginated requests. Responses, a are combined monoidally.

The result is wrapped in the last received Response.

performPagedRequest :: (FromJSON a, Semigroup a)
                    => (Request -> ExceptT Error IO (Response ByteString))
                    -> (a -> Value)
                    -> Request
                    -> ExceptT Error IO (Response a)

parseResponseJSON :: (FromJSON a, MonadError Error m) => Response ByteString -> m a Source #

Parse API response.

parseResponse :: FromJSON a => Response ByteString -> Either Error a

Preview

class PreviewAccept p where Source #

Minimal complete definition

previewContentType

Methods

previewContentType :: Tagged (MtPreview p) ByteString Source #

previewModifyRequest :: Tagged (MtPreview p) (Request -> Request) Source #

class PreviewAccept p => PreviewParseResponse p a where Source #

Methods

previewParseResponse :: MonadError Error m => Request -> Response ByteString -> Tagged (MtPreview p) (m a) Source #

SSL

This always exist, independently of openssl configuration flag. They change accordingly, to make use of the library simpler.

withOpenSSL :: IO a -> IO a Source #

tlsManagerSettings :: ManagerSettings #

Default TLS-enabled manager settings