/
state.go
74 lines (62 loc) · 1.96 KB
/
state.go
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package dapr
import (
"context"
"github.com/dapr/go-sdk/client"
"github.com/hdget/hdsdk/utils"
"github.com/pkg/errors"
)
// SaveState 保存状态
func SaveState(storeName, key string, value interface{}) error {
data, err := utils.ToBytes(value)
if err != nil {
return err
}
daprClient, err := client.NewClient()
if err != nil {
return errors.Wrap(err, "new dapr client")
}
if daprClient == nil {
return errors.New("dapr client is null, name resolution service may not started, please check it")
}
// IMPORTANT: daprClient是全局的连接, 不能关闭
//defer daprClient.Close()
err = daprClient.SaveState(context.Background(), storeName, key, data, nil)
if err != nil {
return errors.Wrapf(err, "save state, store: %s, key: %s, value: %s", storeName, key, value)
}
return nil
}
// GetState 保存状态
func GetState(storeName, key string) ([]byte, error) {
daprClient, err := client.NewClient()
if err != nil {
return nil, errors.Wrap(err, "new dapr client")
}
if daprClient == nil {
return nil, errors.New("dapr client is null, name resolution service may not started, please check it")
}
// IMPORTANT: daprClient是全局的连接, 不能关闭
//defer daprClient.Close()
item, err := daprClient.GetState(context.Background(), storeName, key, nil)
if err != nil {
return nil, errors.Wrapf(err, "get state, store: %s, key: %s", storeName, key)
}
return item.Value, nil
}
// DeleteState 删除状态
func DeleteState(storeName, key string) error {
daprClient, err := client.NewClient()
if err != nil {
return errors.Wrap(err, "new dapr client")
}
if daprClient == nil {
return errors.New("dapr client is null, name resolution service may not started, please check it")
}
// IMPORTANT: daprClient是全局的连接, 不能关闭
//defer daprClient.Close()
err = daprClient.DeleteState(context.Background(), storeName, key, nil)
if err != nil {
return errors.Wrapf(err, "delete state, store: %s, key: %s", storeName, key)
}
return nil
}