dataloader

package module

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Versions in this module

v7

v7.2.0

May 27, 2026

v7.1.3

Jan 14, 2026

Changes in this version

+ var ErrNoResultProvided = errors.New("no result provided")

v7.1.2

May 24, 2025

Changes in this version

type Interface

+ Flush func()

type Loader

+ func (l *Loader[K, V]) Flush()

+ type SkipCacheError struct

+ func NewSkipCacheError(err error) *SkipCacheError

+ func (s *SkipCacheError) Error() string

+ func (s *SkipCacheError) Unwrap() error

v7.1.1

May 24, 2025

Changes in this version

+ func DetachedContext(ctx context.Context) context.Context

+ type DataCache interface

+ Clear func()

+ Delete func(context.Context, K) bool

+ Get func(context.Context, K) (V, bool)

+ Set func(context.Context, K, V)

+ type DataCacheMany interface

+ GetMany func(context.Context, []K) (map[K]V, error)

type Option

+ func WithDataCache[K comparable, V any](c DataCache[K, V]) Option[K, V]

+ func WithTimeout[K comparable, V any](t time.Duration) Option[K, V]

v7.1.0

Sep 7, 2022

Changes in this version

+ type PanicErrorWrapper struct

+ func (p *PanicErrorWrapper) Error() string

v7.0.0

Apr 11, 2022

Changes in this version

+ type BatchFunc func(context.Context, []K) []*Result[V]

+ type Cache interface

+ Clear func()

+ Delete func(context.Context, K) bool

+ Get func(context.Context, K) (Thunk[V], bool)

+ Set func(context.Context, K, Thunk[V])

+ type InMemoryCache struct

+ func NewCache() *InMemoryCache[K, V]

+ func (c *InMemoryCache[K, V]) Clear()

+ func (c *InMemoryCache[K, V]) Delete(ctx context.Context, key K) bool

+ func (c *InMemoryCache[K, V]) Get(_ context.Context, key K) (Thunk[V], bool)

+ func (c *InMemoryCache[K, V]) Set(_ context.Context, key K, value Thunk[V])

+ type Interface interface

+ Clear func(context.Context, K) Interface[K, V]

+ ClearAll func() Interface[K, V]

+ Load func(context.Context, K) Thunk[V]

+ LoadMany func(context.Context, []K) ThunkMany[V]

+ Prime func(ctx context.Context, key K, value V) Interface[K, V]

+ type Loader struct

+ func NewBatchedLoader(batchFn BatchFunc[K, V], opts ...Option[K, V]) *Loader[K, V]

+ func (l *Loader[K, V]) Clear(ctx context.Context, key K) Interface[K, V]

+ func (l *Loader[K, V]) ClearAll() Interface[K, V]

+ func (l *Loader[K, V]) Load(originalContext context.Context, key K) Thunk[V]

+ func (l *Loader[K, V]) LoadMany(originalContext context.Context, keys []K) ThunkMany[V]

+ func (l *Loader[K, V]) Prime(ctx context.Context, key K, value V) Interface[K, V]

+ type NoCache struct

+ func (c *NoCache[K, V]) Clear()

+ func (c *NoCache[K, V]) Delete(context.Context, K) bool

+ func (c *NoCache[K, V]) Get(context.Context, K) (Thunk[V], bool)

+ func (c *NoCache[K, V]) Set(context.Context, K, Thunk[V])

+ type NoopTracer struct

+ func (NoopTracer[K, V]) TraceBatch(ctx context.Context, keys []K) (context.Context, TraceBatchFinishFunc[V])

+ func (NoopTracer[K, V]) TraceLoad(ctx context.Context, key K) (context.Context, TraceLoadFinishFunc[V])

+ func (NoopTracer[K, V]) TraceLoadMany(ctx context.Context, keys []K) (context.Context, TraceLoadManyFinishFunc[V])

+ type Option func(*Loader[K, V])

+ func WithBatchCapacity(c int) Option[K, V]

+ func WithCache(c Cache[K, V]) Option[K, V]

+ func WithClearCacheOnBatch() Option[K, V]

+ func WithInputCapacity(c int) Option[K, V]

+ func WithTracer(tracer Tracer[K, V]) Option[K, V]

+ func WithWait(d time.Duration) Option[K, V]

+ type Result struct

+ Data V

+ Error error

+ type ResultMany struct

+ Data []V

+ Error []error

+ type Thunk func() (V, error)

+ type ThunkMany func() ([]V, []error)

+ type TraceBatchFinishFunc func([]*Result[V])

+ type TraceLoadFinishFunc func(Thunk[V])

+ type TraceLoadManyFinishFunc func(ThunkMany[V])

+ type Tracer interface

+ TraceBatch func(ctx context.Context, keys []K) (context.Context, TraceBatchFinishFunc[V])

+ TraceLoad func(ctx context.Context, key K) (context.Context, TraceLoadFinishFunc[V])

+ TraceLoadMany func(ctx context.Context, keys []K) (context.Context, TraceLoadManyFinishFunc[V])

Other modules containing this package

github.com/graph-gophers/dataloader

github.com/graph-gophers/dataloader/v6

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