Network.Ethereum.Web3.Types

Common used types and instances.

Documentation

type Web3 = ReaderT Config (ExceptT Error IO)

Any communication with Ethereum node wrapped with Web3 monad

data Config

Ethereum node params

Constructors

Config

Fields

• rpcUri :: String

  JSON-RPC node URI

Instances

Eq Config

Methods

(==) :: Config -> Config -> Bool

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

Show Config

Methods

showsPrec :: Int -> Config -> ShowS

show :: Config -> String

showList :: [Config] -> ShowS

Default Config

Methods

def :: Config

data Error

Some peace of error response

Constructors

JsonRpcFail RpcError

JSON-RPC communication error

ParserFail String

Error in parser state

UserFail String

Common head for user errors

Instances

Eq Error

Methods

(==) :: Error -> Error -> Bool

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

Show Error

Methods

showsPrec :: Int -> Error -> ShowS

show :: Error -> String

showList :: [Error] -> ShowS

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

Run Web3 monad with default config

runWeb3' :: MonadIO m => Config -> Web3 a -> m (Either Error a)

Run Web3 monad with given configuration

data RpcError

JSON-RPC error message

Constructors

RpcError

Fields

• errCode :: Int
• errMessage :: Text
• errData :: Maybe Value

Instances

Eq RpcError

Methods

(==) :: RpcError -> RpcError -> Bool

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

Show RpcError

Methods

showsPrec :: Int -> RpcError -> ShowS

show :: RpcError -> String

showList :: [RpcError] -> ShowS

ToJSON RpcError

Methods

toJSON :: RpcError -> Value

toEncoding :: RpcError -> Encoding

toJSONList :: [RpcError] -> Value

toEncodingList :: [RpcError] -> Encoding

FromJSON RpcError

Methods

parseJSON :: Value -> Parser RpcError

parseJSONList :: Value -> Parser [RpcError]

data Filter

Low-level event filter data structure

Constructors

Filter

Fields

• filterAddress :: Maybe Address
• filterTopics :: Maybe [Maybe Text]
• filterFromBlock :: Maybe Text
• filterToBlock :: Maybe Text

Instances

Show Filter

Methods

showsPrec :: Int -> Filter -> ShowS

show :: Filter -> String

showList :: [Filter] -> ShowS

ToJSON Filter

Methods

toJSON :: Filter -> Value

toEncoding :: Filter -> Encoding

toJSONList :: [Filter] -> Value

toEncodingList :: [Filter] -> Encoding

FromJSON Filter

Methods

parseJSON :: Value -> Parser Filter

parseJSONList :: Value -> Parser [Filter]

newtype FilterId

Event filder ident

Constructors

FilterId Int

Instances

Eq FilterId

Methods

(==) :: FilterId -> FilterId -> Bool

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

Ord FilterId

Methods

compare :: FilterId -> FilterId -> Ordering

(<) :: FilterId -> FilterId -> Bool

(<=) :: FilterId -> FilterId -> Bool

(>) :: FilterId -> FilterId -> Bool

(>=) :: FilterId -> FilterId -> Bool

max :: FilterId -> FilterId -> FilterId

min :: FilterId -> FilterId -> FilterId

Show FilterId

Methods

showsPrec :: Int -> FilterId -> ShowS

show :: FilterId -> String

showList :: [FilterId] -> ShowS

ToJSON FilterId

Methods

toJSON :: FilterId -> Value

toEncoding :: FilterId -> Encoding

toJSONList :: [FilterId] -> Value

toEncodingList :: [FilterId] -> Encoding

FromJSON FilterId

Methods

parseJSON :: Value -> Parser FilterId

parseJSONList :: Value -> Parser [FilterId]

data Change

Changes pulled by low-level call eth_getFilterChanges

Constructors

Change

Fields

• changeLogIndex :: Text
• changeTransactionIndex :: Text
• changeTransactionHash :: Text
• changeBlockHash :: Text
• changeBlockNumber :: Text
• changeAddress :: Address
• changeData :: Text
• changeTopics :: [Text]

Instances

Show Change

Methods

showsPrec :: Int -> Change -> ShowS

show :: Change -> String

showList :: [Change] -> ShowS

ToJSON Change

Methods

toJSON :: Change -> Value

toEncoding :: Change -> Encoding

toJSONList :: [Change] -> Value

toEncodingList :: [Change] -> Encoding

FromJSON Change

Methods

parseJSON :: Value -> Parser Change

parseJSONList :: Value -> Parser [Change]

data Call

The contract call params

Constructors

Call

Fields

• callFrom :: Maybe Address
• callTo :: Address
• callGas :: Maybe Text
• callPrice :: Maybe Text
• callValue :: Maybe Text
• callData :: Maybe Text

Instances

Show Call

Methods

showsPrec :: Int -> Call -> ShowS

show :: Call -> String

showList :: [Call] -> ShowS

ToJSON Call

Methods

toJSON :: Call -> Value

toEncoding :: Call -> Encoding

toJSONList :: [Call] -> Value

toEncodingList :: [Call] -> Encoding

FromJSON Call

Methods

parseJSON :: Value -> Parser Call

parseJSONList :: Value -> Parser [Call]

data CallMode

The contract call mode describe used state: latest or pending

Constructors

Latest

Pending

Instances

Eq CallMode

Methods

(==) :: CallMode -> CallMode -> Bool

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

Show CallMode

Methods

showsPrec :: Int -> CallMode -> ShowS

show :: CallMode -> String

showList :: [CallMode] -> ShowS

ToJSON CallMode

Methods

toJSON :: CallMode -> Value

toEncoding :: CallMode -> Encoding

toJSONList :: [CallMode] -> Value

toEncodingList :: [CallMode] -> Encoding

type TxHash = Text

Transaction hash text string