Network.Ethereum.Web3.Provider

Web3 service provider.

Documentation

newtype Web3 a

Any communication with Ethereum node wrapped with Web3 monad

Constructors

Web3

Fields

• unWeb3 :: ReaderT (ServerUri, Manager) IO a

Instances

Monad Web3

Methods

(>>=) :: Web3 a -> (a -> Web3 b) -> Web3 b

(>>) :: Web3 a -> Web3 b -> Web3 b

return :: a -> Web3 a

fail :: String -> Web3 a

Functor Web3

Methods

fmap :: (a -> b) -> Web3 a -> Web3 b

(<$) :: a -> Web3 b -> Web3 a

Applicative Web3

Methods

pure :: a -> Web3 a

(<*>) :: Web3 (a -> b) -> Web3 a -> Web3 b

liftA2 :: (a -> b -> c) -> Web3 a -> Web3 b -> Web3 c

(*>) :: Web3 a -> Web3 b -> Web3 b

(<*) :: Web3 a -> Web3 b -> Web3 a

MonadIO Web3

Methods

liftIO :: IO a -> Web3 a

MonadThrow Web3

Methods

throwM :: Exception e => e -> Web3 a

FromJSON a => Remote Web3 (Web3 a)

Methods

remote_ :: ([Value] -> Web3 ByteString) -> Web3 a

MonadReader (ServerUri, Manager) Web3

Methods

ask :: Web3 (ServerUri, Manager)

local :: ((ServerUri, Manager) -> (ServerUri, Manager)) -> Web3 a -> Web3 a

reader :: ((ServerUri, Manager) -> a) -> Web3 a

data Web3Error

Some peace of error response

Constructors

JsonRpcFail !String

JSON-RPC communication error

ParserFail !String

Error in parser state

UserFail !String

Common head for user errors

Instances

Eq Web3Error

Methods

(==) :: Web3Error -> Web3Error -> Bool

(/=) :: Web3Error -> Web3Error -> Bool

Show Web3Error

Methods

showsPrec :: Int -> Web3Error -> ShowS

show :: Web3Error -> String

showList :: [Web3Error] -> ShowS

Generic Web3Error

Associated Types

type Rep Web3Error :: * -> *

Methods

from :: Web3Error -> Rep Web3Error x

to :: Rep Web3Error x -> Web3Error

Exception Web3Error

Methods

toException :: Web3Error -> SomeException

fromException :: SomeException -> Maybe Web3Error

displayException :: Web3Error -> String

type Rep Web3Error

type Rep Web3Error = D1 * (MetaData "Web3Error" "Network.Ethereum.Web3.Provider" "web3-0.7.0.0-3hRETfypdz0IWrclyn4h7y" False) ((:+:) * (C1 * (MetaCons "JsonRpcFail" PrefixI False) (S1 * (MetaSel (Nothing Symbol) NoSourceUnpackedness SourceStrict DecidedStrict) (Rec0 * String))) ((:+:) * (C1 * (MetaCons "ParserFail" PrefixI False) (S1 * (MetaSel (Nothing Symbol) NoSourceUnpackedness SourceStrict DecidedStrict) (Rec0 * String))) (C1 * (MetaCons "UserFail" PrefixI False) (S1 * (MetaSel (Nothing Symbol) NoSourceUnpackedness SourceStrict DecidedStrict) (Rec0 * String)))))

data Provider

Web3 Provider

Constructors

HttpProvider ServerUri

Instances

Eq Provider

Methods

(==) :: Provider -> Provider -> Bool

(/=) :: Provider -> Provider -> Bool

Show Provider

Methods

showsPrec :: Int -> Provider -> ShowS

show :: Provider -> String

showList :: [Provider] -> ShowS

Generic Provider

Associated Types

type Rep Provider :: * -> *

Methods

from :: Provider -> Rep Provider x

to :: Rep Provider x -> Provider

Default Provider

Methods

def :: Provider

type Rep Provider

type Rep Provider = D1 * (MetaData "Provider" "Network.Ethereum.Web3.Provider" "web3-0.7.0.0-3hRETfypdz0IWrclyn4h7y" False) (C1 * (MetaCons "HttpProvider" PrefixI False) (S1 * (MetaSel (Nothing Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 * ServerUri)))

runWeb3With :: MonadIO m => Manager -> Provider -> Web3 a -> m (Either Web3Error a)

Web3 monad runner, using the supplied Manager

runWeb3' :: MonadIO m => Provider -> Web3 a -> m (Either Web3Error a)

Web3 monad runner

runWeb3 :: MonadIO m => Web3 a -> m (Either Web3Error a)

Web3 runner for default provider

forkWeb3 :: Web3 a -> Web3 (Async a)

Fork Web3 with the same Provider