增加删除key的方法

middleware/etcd/define.go

@@ -34,6 +34,8 @@ const (
 	DefaultPutTimeout = time.Second
 	// DefaultGetTimeout get 默认超时时间
 	DefaultGetTimeout = time.Second
+	// DefaultDeleteTimeout 删除的超时时间
+	DefaultDeleteTimeout = time.Second
 )
 
 // WatcherHandler 监听key变化的处理函数

middleware/etcd/delete.go

@@ -0,0 +1,54 @@
+// Package etcd...
+//
+// Description : 删除相关操作
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2021-11-24 12:42 下午
+package etcd
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"go.etcd.io/etcd/clientv3"
+)
+
+// DeleteWithOption ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2:02 下午 2021/11/24
+func DeleteWithOption(ctx context.Context, key string, timeout time.Duration, optionList ...clientv3.OpOption) (*clientv3.DeleteResponse, error) {
+	if nil == ctx {
+		ctx = context.Background()
+	}
+
+	if timeout <= 0 {
+		timeout = DefaultDeleteTimeout
+	}
+
+	var (
+		cancelFunc     context.CancelFunc
+		deleteResponse *clientv3.DeleteResponse
+		err            error
+	)
+	ctx, cancelFunc = context.WithTimeout(ctx, timeout)
+	defer cancelFunc()
+
+	if deleteResponse, err = Client.Delete(ctx, key, optionList...); nil != err {
+		return nil, errors.New("delete key fail : " + err.Error())
+	}
+
+	return deleteResponse, nil
+}
+
+// DeleteWithKeyPrefix 基于 key 前缀, 删除key
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2:12 下午 2021/11/24
+func DeleteWithKeyPrefix(ctx context.Context, keyPrefix string, timeout time.Duration) (*clientv3.DeleteResponse, error) {
+	return DeleteWithOption(ctx, keyPrefix, timeout, clientv3.WithPrefix())
+}

middleware/etcd/delete_test.go

@@ -0,0 +1,22 @@
+// Package etcd...
+//
+// Description : etcd...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2021-11-24 2:11 下午
+package etcd
+
+import (
+	"fmt"
+	"testing"
+)
+
+// TestDeleteWithKeyPrefix ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2:11 下午 2021/11/24
+func TestDeleteWithKeyPrefix(t *testing.T) {
+	fmt.Println(DeleteWithKeyPrefix(nil, "/test", 0))
+}