loader

Documentation

Index

• Variables
• func LoadModels[Key comparable, DBModel comparable, GraphModel comparable](ctx context.Context, keys []Key, ...) ([]GraphModel, []error)
• func LoadModelsWithError[Key comparable, DBModel comparable, GraphModel comparable](ctx context.Context, keys []Key, ...) ([]GraphModel, []error)
• func Middleware(fn func(context.Context) context.Context) func(http.Handler) http.Handler

Variables

var DefaultDataLoaderOptions = []dataloadgen.Option{
	dataloadgen.WithWait(time.Millisecond),
	dataloadgen.WithBatchCapacity(250),
	dataloadgen.WithTracer(otel.Tracer("dataloader")),
}

var ErrObjectNotFound = fmt.Errorf("object could not be found: %w", pgx.ErrNoRows)

Functions

func LoadModels

func LoadModels[Key comparable, DBModel comparable, GraphModel comparable](
	ctx context.Context,
	keys []Key,
	loaderFn func(context.Context, []Key) ([]DBModel, error),
	toGraphFn func(DBModel) GraphModel,
	makeKey func(GraphModel) Key,
) ([]GraphModel, []error)

func LoadModelsWithError

func LoadModelsWithError[Key comparable, DBModel comparable, GraphModel comparable](
	ctx context.Context,
	keys []Key,
	loaderFn func(context.Context, []Key) ([]DBModel, error),
	toGraphFn func(DBModel) (GraphModel, error),
	makeKey func(GraphModel) Key,
) ([]GraphModel, []error)

func Middleware

func Middleware(fn func(context.Context) context.Context) func(http.Handler) http.Handler

Middleware injects data loaders into the context