Safe Haskell	None
Language	GHC2021

Hasql.Pool.Extended

Synopsis

data PoolConfig = PoolConfig {
- size :: Int
- acquisitionTimeout :: Duration
- agingTimeout :: Duration
- idlenessTimeout :: Duration
}
initPostgresPool :: PoolConfig -> Map Text Text -> Maybe FilePathSecrets -> IO Pool
data HasqlPoolMetrics = HasqlPoolMetrics {
- readyForUseGauge :: Gauge
- inUseGauge :: Gauge
- establishedCounter :: Counter
- terminationCounter :: Counter
- sessionFailureCounter :: Counter
- sessionCounter :: Counter
}
initHasqlPoolMetrics :: IO HasqlPoolMetrics
data Connections = Connections {
- connecting :: Set UUID
- inUse :: Set UUID
- readyForUse :: Set UUID
}
observationHandler :: IORef Connections -> HasqlPoolMetrics -> Observation -> IO ()

Documentation

data PoolConfig Source #

Constructors

PoolConfig
Fields size :: Int acquisitionTimeout :: Duration agingTimeout :: Duration idlenessTimeout :: Duration

Instances

Instances details

FromJSON PoolConfig Source #
Instance details Defined in Hasql.Pool.Extended Methods parseJSON :: Value -> Parser PoolConfig Source # parseJSONList :: Value -> Parser [PoolConfig] Source # omittedField :: Maybe PoolConfig Source #
Show PoolConfig Source #
Instance details Defined in Hasql.Pool.Extended Methods showsPrec :: Int -> PoolConfig -> ShowS # show :: PoolConfig -> String # showList :: [PoolConfig] -> ShowS #
Eq PoolConfig Source #
Instance details Defined in Hasql.Pool.Extended Methods (==) :: PoolConfig -> PoolConfig -> Bool # (/=) :: PoolConfig -> PoolConfig -> Bool #

initPostgresPool :: PoolConfig -> Map Text Text -> Maybe FilePathSecrets -> IO Pool Source #

Creates a pool from postgres config params

HasqlPool.staticConnectionSettings translates the connection settings to the pool settings HasqlPool.settings translates the pool settings into pool config HasqlPool.acquire creates the pool. ezpz.

data HasqlPoolMetrics Source #

Constructors

HasqlPoolMetrics
Fields readyForUseGauge :: Gauge inUseGauge :: Gauge establishedCounter :: Counter terminationCounter :: Counter sessionFailureCounter :: Counter sessionCounter :: Counter

initHasqlPoolMetrics :: IO HasqlPoolMetrics Source #

data Connections Source #

Constructors

Connections
Fields connecting :: Set UUID inUse :: Set UUID readyForUse :: Set UUID

observationHandler :: IORef Connections -> HasqlPoolMetrics -> Observation -> IO () Source #