diff --git a/kernel/api/repo.go b/kernel/api/repo.go
index b65cae2ad..b3b023996 100644
--- a/kernel/api/repo.go
+++ b/kernel/api/repo.go
@@ -43,6 +43,42 @@ func checkoutRepo(c *gin.Context) {
 	}
 }
 
+func downloadCloudSnapshot(c *gin.Context) {
+	ret := gulu.Ret.NewResult()
+	defer c.JSON(http.StatusOK, ret)
+
+	arg, ok := util.JsonArg(c, ret)
+	if !ok {
+		return
+	}
+
+	id := arg["id"].(string)
+	tag := arg["tag"].(string)
+	if err := model.DownloadCloudSnapshot(tag, id); nil != err {
+		ret.Code = -1
+		ret.Msg = err.Error()
+		return
+	}
+}
+
+func uploadCloudSnapshot(c *gin.Context) {
+	ret := gulu.Ret.NewResult()
+	defer c.JSON(http.StatusOK, ret)
+
+	arg, ok := util.JsonArg(c, ret)
+	if !ok {
+		return
+	}
+
+	id := arg["id"].(string)
+	tag := arg["tag"].(string)
+	if err := model.UploadCloudSnapshot(tag, id); nil != err {
+		ret.Code = -1
+		ret.Msg = err.Error()
+		return
+	}
+}
+
 func getRepoSnapshots(c *gin.Context) {
 	ret := gulu.Ret.NewResult()
 	defer c.JSON(http.StatusOK, ret)
diff --git a/kernel/api/router.go b/kernel/api/router.go
index fe96f76ee..aed7f9b9e 100644
--- a/kernel/api/router.go
+++ b/kernel/api/router.go
@@ -260,6 +260,8 @@ func ServeAPI(ginServer *gin.Engine) {
 	ginServer.Handle("POST", "/api/repo/getRepoSnapshots", model.CheckAuth, getRepoSnapshots)
 	ginServer.Handle("POST", "/api/repo/getRepoTagSnapshots", model.CheckAuth, getRepoTagSnapshots)
 	ginServer.Handle("POST", "/api/repo/getCloudRepoTagSnapshots", model.CheckAuth, getCloudRepoTagSnapshots)
+	ginServer.Handle("POST", "/api/repo/uploadCloudSnapshot", model.CheckAuth, uploadCloudSnapshot)
+	ginServer.Handle("POST", "/api/repo/downloadCloudSnapshot", model.CheckAuth, downloadCloudSnapshot)
 
 	ginServer.Handle("POST", "/api/notification/pushMsg", model.CheckAuth, pushMsg)
 	ginServer.Handle("POST", "/api/notification/pushErrMsg", model.CheckAuth, pushErrMsg)
diff --git a/kernel/go.mod b/kernel/go.mod
index fa898de0c..c8e31bc62 100644
--- a/kernel/go.mod
+++ b/kernel/go.mod
@@ -40,7 +40,7 @@ require (
 	github.com/qiniu/go-sdk/v7 v7.13.0
 	github.com/radovskyb/watcher v1.0.7
 	github.com/sabhiram/go-gitignore v0.0.0-20210923224102-525f6e181f06
-	github.com/siyuan-note/dejavu v0.0.0-20220705134218-88ed5d571f17
+	github.com/siyuan-note/dejavu v0.0.0-20220705135659-781eeee791d6
 	github.com/siyuan-note/encryption v0.0.0-20220612074546-f1dd94fe8676
 	github.com/siyuan-note/eventbus v0.0.0-20220624162334-ca7c06dc771f
 	github.com/siyuan-note/filelock v0.0.0-20220704090116-54dfb035283f
diff --git a/kernel/go.sum b/kernel/go.sum
index 930a14bf0..1557e6202 100644
--- a/kernel/go.sum
+++ b/kernel/go.sum
@@ -421,8 +421,8 @@ github.com/shurcooL/httpfs v0.0.0-20190707220628-8d4bc4ba7749/go.mod h1:ZY1cvUeJ
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/shurcooL/vfsgen v0.0.0-20200824052919-0d455de96546/go.mod h1:TrYk7fJVaAttu97ZZKrO9UbRa8izdowaMIZcxYMbVaw=
 github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
-github.com/siyuan-note/dejavu v0.0.0-20220705134218-88ed5d571f17 h1:jGNRM0wvFekdVPOM2+IYpuAE2NLf1QNuxz4yKrJ9jMw=
-github.com/siyuan-note/dejavu v0.0.0-20220705134218-88ed5d571f17/go.mod h1:ral+X0pNW6nSQVvIcxllUXSczCaY4UOCT2iGlO4YNg0=
+github.com/siyuan-note/dejavu v0.0.0-20220705135659-781eeee791d6 h1:N94kPO6BOsB4eDZ73hlugU6qLajULI4OhkU/yOX4hno=
+github.com/siyuan-note/dejavu v0.0.0-20220705135659-781eeee791d6/go.mod h1:ral+X0pNW6nSQVvIcxllUXSczCaY4UOCT2iGlO4YNg0=
 github.com/siyuan-note/encryption v0.0.0-20220612074546-f1dd94fe8676 h1:QB9TjJQFhXhZ6dAtPpY02DlzHAQm1C+WqZq6OadG8mI=
 github.com/siyuan-note/encryption v0.0.0-20220612074546-f1dd94fe8676/go.mod h1:H8fyqqAbp9XreANjeSbc72zEdFfKTXYN34tc1TjZwtw=
 github.com/siyuan-note/eventbus v0.0.0-20220624162334-ca7c06dc771f h1:JMobMNZ7AqaKKyEK+WeWFhix/2TDQXgPZDajU00IybU=
diff --git a/kernel/model/repository.go b/kernel/model/repository.go
index 4178e896c..8ec8f3366 100644
--- a/kernel/model/repository.go
+++ b/kernel/model/repository.go
@@ -175,9 +175,7 @@ func CheckoutRepo(id string) (err error) {
 	Conf.Sync.Enabled = false
 	Conf.Save()
 
-	_, _, err = repo.Checkout(id, map[string]interface{}{
-		CtxPushMsg: CtxPushMsgToStatusBarAndProgress,
-	})
+	_, _, err = repo.Checkout(id, map[string]interface{}{CtxPushMsg: CtxPushMsgToStatusBarAndProgress})
 	if nil != err {
 		util.PushClearProgress()
 		return
@@ -193,6 +191,56 @@ func CheckoutRepo(id string) (err error) {
 	return
 }
 
+func DownloadCloudSnapshot(tag, id string) (err error) {
+	if 1 > len(Conf.Repo.Key) {
+		err = errors.New(Conf.Language(26))
+		return
+	}
+
+	repo, err := newRepository()
+	if nil != err {
+		return
+	}
+
+	cloudInfo, err := buildCloudInfo()
+	if nil != err {
+		return
+	}
+
+	downloadFileCount, downloadChunkCount, downloadBytes, err := repo.DownloadTagIndex(tag, id, cloudInfo, map[string]interface{}{CtxPushMsg: CtxPushMsgToStatusBarAndProgress})
+	if nil != err {
+		return
+	}
+	util.LogInfof("downloaded snapshot [%s], files [%d] chunks [%d], received bytes [%d]", tag, downloadFileCount, downloadChunkCount, downloadBytes)
+	util.PushClearProgress()
+	return
+}
+
+func UploadCloudSnapshot(tag, id string) (err error) {
+	if 1 > len(Conf.Repo.Key) {
+		err = errors.New(Conf.Language(26))
+		return
+	}
+
+	repo, err := newRepository()
+	if nil != err {
+		return
+	}
+
+	cloudInfo, err := buildCloudInfo()
+	if nil != err {
+		return
+	}
+
+	uploadFileCount, uploadChunkCount, uploadBytes, err := repo.UploadTagIndex(tag, id, cloudInfo, map[string]interface{}{CtxPushMsg: CtxPushMsgToStatusBarAndProgress})
+	if nil != err {
+		return
+	}
+	util.LogInfof("uploaded snapshot [%s], files [%d] chunks [%d], sent bytes [%d]", tag, uploadFileCount, uploadChunkCount, uploadBytes)
+	util.PushClearProgress()
+	return
+}
+
 func GetCloudRepoTagSnapshots() (tags []*dejavu.Log, err error) {
 	if 1 > len(Conf.Repo.Key) {
 		err = errors.New(Conf.Language(26))