gqlsingleton

package

v0.0.0-...-1e60831 Latest Latest Go to latest Published: Apr 23, 2024 License: NIST-PD-fallback Imports: 6 Imported by: 0

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Package gqlsingleton provides singleton objects in GraphQL server.

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type Instance interface {
	comparable
	io.Closer
}

Instance is the type constraint of Singleton.

type Singleton[T Instance] struct {
	sync.Mutex
	// contains filtered or unexported fields
}

Singleton represents a single instance GraphQL object.

func (s *Singleton[T]) CreateWith(f func(p graphql.ResolveParams) (value T, e error)) graphql.FieldResolveFn

CreateWith wraps a create object mutation resolver with singleton lock.

func (s *Singleton[T]) Get() T

Get returns the object.

func (s *Singleton[T]) NodeConfig() (nc gqlserver.NodeConfig[T])

NodeConfig returns NodeConfig with callback functions.

func (s *Singleton[T]) QueryList(p graphql.ResolveParams) (any, error)

QueryList provides an object list query resolver. The return type is [T!]!.