Safe Haskell	None

Ganeti.THH.RPC

Description

Implements Template Haskell generation of RPC server components from Haskell functions.

Synopsis

data RpcFn m = forall i o.(JSON i, JSON o) => RpcFn (i -> m o)
type RpcServer m = Handler Request m JSValue
data Request = Request {
- rMethod :: String
- rArgs :: JSValue
}
decodeRequest :: JSValue -> JSValue -> Result Request
dispatch :: Monad m => Map String (RpcFn (ResultT GanetiException m)) -> RpcServer m
toRpcFn :: Name -> Q Exp
rpcFnsList :: [(String, Q Exp)] -> Q Exp
mkRpcM :: [Name] -> Q Exp

Documentation

Constructors

forall i o.(JSON i, JSON o) => RpcFn (i -> m o)

A RPC request consiting of a method and its argument(s).

Constructors

Request
Fields rMethod :: String rArgs :: JSValue

Instances details

Eq Request #
Instance details Defined in Ganeti.THH.RPC Methods (==) :: Request -> Request -> Bool (/=) :: Request -> Request -> Bool
Ord Request #
Instance details Defined in Ganeti.THH.RPC Methods compare :: Request -> Request -> Ordering (<) :: Request -> Request -> Bool (<=) :: Request -> Request -> Bool (>) :: Request -> Request -> Bool (>=) :: Request -> Request -> Bool max :: Request -> Request -> Request min :: Request -> Request -> Request
Show Request #
Instance details Defined in Ganeti.THH.RPC Methods showsPrec :: Int -> Request -> ShowS show :: Request -> String showList :: [Request] -> ShowS

toRpcFn :: Name -> Q Exp Source #

Converts a function into the appropriate RpcFn m expression. The function's result must be monadic.

rpcFnsList :: [(String, Q Exp)] -> Q Exp Source #

Convert a list of named expressions into an expression containing a list of name/expression pairs.

Arguments

:: [Name]	the names of functions to include
-> Q Exp

Takes a list of function names and creates a RPC handler that delegates calls to them.

The functions must conform to (J.JSON i, J.JSON o) => i -> ResultT GanetiException m o. The m monads types of all the functions must unify.

The result expression is of type RpcServer m.