52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
package sdk
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import (
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"context"
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"encoding/json"
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)
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type Encoder[T any] interface {
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Get(ctx context.Context, key string) (val T, ok bool, meta StateMetadata, err error)
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Set(ctx context.Context, key string, val T) error
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}
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var _ Encoder[struct{}] = (*JSONStateEncoder[struct{}])(nil)
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func NewJSONStateEncoder[T any](ctx ExecutionContext) *JSONStateEncoder[T] {
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return &JSONStateEncoder[T]{
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Context: ctx,
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}
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}
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type JSONStateEncoder[T any] struct {
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Context ExecutionContext
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}
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func (j JSONStateEncoder[T]) Get(ctx context.Context, key string) (val T, ok bool, meta StateMetadata, err error) {
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var data []byte
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data, meta, err = j.Context.GetState(ctx, key)
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if err != nil {
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return val, false, StateMetadata{}, err
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}
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if len(data) == 0 {
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return val, false, meta, nil
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}
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if err := json.Unmarshal(data, &val); err != nil {
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return val, false, StateMetadata{}, err
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}
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return val, true, meta, nil
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}
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func (j JSONStateEncoder[T]) Set(ctx context.Context, key string, val T) error {
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data, err := json.Marshal(val)
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if err != nil {
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return err
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}
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return j.Context.SetState(ctx, key, data)
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}
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