chore: add activity service

api/v2/activity_service .go

@@ -0,0 +1,53 @@
+package v2
+
+import (
+	"context"
+	"time"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/timestamppb"
+
+	apiv2pb "github.com/usememos/memos/proto/gen/api/v2"
+	storepb "github.com/usememos/memos/proto/gen/store"
+	"github.com/usememos/memos/store"
+)
+
+func (s *APIV2Service) GetActivity(ctx context.Context, request *apiv2pb.GetActivityRequest) (*apiv2pb.GetActivityResponse, error) {
+	activity, err := s.Store.GetActivity(ctx, &store.FindActivity{
+		ID: &request.Id,
+	})
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "failed to get activity: %v", err)
+	}
+
+	activityMessage, err := s.convertActivityFromStore(ctx, activity)
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "failed to convert activity from store: %v", err)
+	}
+	return &apiv2pb.GetActivityResponse{
+		Activity: activityMessage,
+	}, nil
+}
+
+func (*APIV2Service) convertActivityFromStore(_ context.Context, activity *store.Activity) (*apiv2pb.Activity, error) {
+	return &apiv2pb.Activity{
+		Id:         activity.ID,
+		CreatorId:  activity.CreatorID,
+		Type:       activity.Type.String(),
+		Level:      activity.Level.String(),
+		CreateTime: timestamppb.New(time.Unix(activity.CreatedTs, 0)),
+		Payload:    convertActivityPayloadFromStore(activity.Payload),
+	}, nil
+}
+
+func convertActivityPayloadFromStore(payload *storepb.ActivityPayload) *apiv2pb.ActivityPayload {
+	v2Payload := &apiv2pb.ActivityPayload{}
+	if payload.MemoComment != nil {
+		v2Payload.MemoComment = &apiv2pb.ActivityMemoCommentPayload{
+			MemoId:        payload.MemoComment.MemoId,
+			RelatedMemoId: payload.MemoComment.RelatedMemoId,
+		}
+	}
+	return v2Payload
+}

api/v2/v2.go

@@ -23,6 +23,7 @@ type APIV2Service struct {
 	apiv2pb.UnimplementedResourceServiceServer
 	apiv2pb.UnimplementedTagServiceServer
 	apiv2pb.UnimplementedInboxServiceServer
+	apiv2pb.UnimplementedActivityServiceServer
 
 	Secret  string
 	Profile *profile.Profile
@@ -54,6 +55,7 @@ func NewAPIV2Service(secret string, profile *profile.Profile, store *store.Store
 	apiv2pb.RegisterTagServiceServer(grpcServer, apiv2Service)
 	apiv2pb.RegisterResourceServiceServer(grpcServer, apiv2Service)
 	apiv2pb.RegisterInboxServiceServer(grpcServer, apiv2Service)
+	apiv2pb.RegisterActivityServiceServer(grpcServer, apiv2Service)
 	reflection.Register(grpcServer)
 
 	return apiv2Service
@@ -95,6 +97,9 @@ func (s *APIV2Service) RegisterGateway(ctx context.Context, e *echo.Echo) error
 	if err := apiv2pb.RegisterInboxServiceHandler(context.Background(), gwMux, conn); err != nil {
 		return err
 	}
+	if err := apiv2pb.RegisterActivityServiceHandler(context.Background(), gwMux, conn); err != nil {
+		return err
+	}
 	e.Any("/api/v2/*", echo.WrapHandler(gwMux))
 
 	// GRPC web proxy.

proto/api/v2/activity_service.proto

@@ -0,0 +1,45 @@
+syntax = "proto3";
+
+package memos.api.v2;
+
+import "google/api/annotations.proto";
+import "google/protobuf/timestamp.proto";
+
+option go_package = "gen/api/v2";
+
+service ActivityService {
+  rpc GetActivity(GetActivityRequest) returns (GetActivityResponse) {
+    option (google.api.http) = {get: "/v2/activities"};
+  }
+}
+
+message Activity {
+  int32 id = 1;
+
+  int32 creator_id = 2;
+
+  string type = 3;
+
+  string level = 4;
+
+  google.protobuf.Timestamp create_time = 5;
+
+  ActivityPayload payload = 6;
+}
+
+message ActivityMemoCommentPayload {
+  int32 memo_id = 1;
+  int32 related_memo_id = 2;
+}
+
+message ActivityPayload {
+  ActivityMemoCommentPayload memo_comment = 1;
+}
+
+message GetActivityRequest {
+  int32 id = 1;
+}
+
+message GetActivityResponse {
+  Activity activity = 1;
+}

proto/gen/api/v2/README.md

@@ -3,6 +3,15 @@
 
 ## Table of Contents
 
+- [api/v2/activity_service.proto](#api_v2_activity_service-proto)
+    - [Activity](#memos-api-v2-Activity)
+    - [ActivityMemoCommentPayload](#memos-api-v2-ActivityMemoCommentPayload)
+    - [ActivityPayload](#memos-api-v2-ActivityPayload)
+    - [GetActivityRequest](#memos-api-v2-GetActivityRequest)
+    - [GetActivityResponse](#memos-api-v2-GetActivityResponse)
+  
+    - [ActivityService](#memos-api-v2-ActivityService)
+  
 - [api/v2/common.proto](#api_v2_common-proto)
     - [RowStatus](#memos-api-v2-RowStatus)
   
@@ -94,6 +103,113 @@
 
 
 
+<a name="api_v2_activity_service-proto"></a>
+<p align="right"><a href="#top">Top</a></p>
+
+## api/v2/activity_service.proto
+
+
+
+<a name="memos-api-v2-Activity"></a>
+
+### Activity
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| id | [int32](#int32) |  |  |
+| creator_id | [int32](#int32) |  |  |
+| type | [string](#string) |  |  |
+| level | [string](#string) |  |  |
+| create_time | [google.protobuf.Timestamp](#google-protobuf-Timestamp) |  |  |
+| payload | [ActivityPayload](#memos-api-v2-ActivityPayload) |  |  |
+
+
+
+
+
+
+<a name="memos-api-v2-ActivityMemoCommentPayload"></a>
+
+### ActivityMemoCommentPayload
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| memo_id | [int32](#int32) |  |  |
+| related_memo_id | [int32](#int32) |  |  |
+
+
+
+
+
+
+<a name="memos-api-v2-ActivityPayload"></a>
+
+### ActivityPayload
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| memo_comment | [ActivityMemoCommentPayload](#memos-api-v2-ActivityMemoCommentPayload) |  |  |
+
+
+
+
+
+
+<a name="memos-api-v2-GetActivityRequest"></a>
+
+### GetActivityRequest
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| id | [int32](#int32) |  |  |
+
+
+
+
+
+
+<a name="memos-api-v2-GetActivityResponse"></a>
+
+### GetActivityResponse
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| activity | [Activity](#memos-api-v2-Activity) |  |  |
+
+
+
+
+
+ 
+
+ 
+
+ 
+
+
+<a name="memos-api-v2-ActivityService"></a>
+
+### ActivityService
+
+
+| Method Name | Request Type | Response Type | Description |
+| ----------- | ------------ | ------------- | ------------|
+| GetActivity | [GetActivityRequest](#memos-api-v2-GetActivityRequest) | [GetActivityResponse](#memos-api-v2-GetActivityResponse) |  |
+
+ 
+
+
+
 <a name="api_v2_common-proto"></a>
 <p align="right"><a href="#top">Top</a></p>
 

proto/gen/api/v2/activity_service.pb.go

@@ -0,0 +1,492 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.31.0
+// 	protoc        (unknown)
+// source: api/v2/activity_service.proto
+
+package apiv2
+
+import (
+	_ "google.golang.org/genproto/googleapis/api/annotations"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	timestamppb "google.golang.org/protobuf/types/known/timestamppb"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Activity struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id         int32                  `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+	CreatorId  int32                  `protobuf:"varint,2,opt,name=creator_id,json=creatorId,proto3" json:"creator_id,omitempty"`
+	Type       string                 `protobuf:"bytes,3,opt,name=type,proto3" json:"type,omitempty"`
+	Level      string                 `protobuf:"bytes,4,opt,name=level,proto3" json:"level,omitempty"`
+	CreateTime *timestamppb.Timestamp `protobuf:"bytes,5,opt,name=create_time,json=createTime,proto3" json:"create_time,omitempty"`
+	Payload    *ActivityPayload       `protobuf:"bytes,6,opt,name=payload,proto3" json:"payload,omitempty"`
+}
+
+func (x *Activity) Reset() {
+	*x = Activity{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_api_v2_activity_service_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Activity) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Activity) ProtoMessage() {}
+
+func (x *Activity) ProtoReflect() protoreflect.Message {
+	mi := &file_api_v2_activity_service_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Activity.ProtoReflect.Descriptor instead.
+func (*Activity) Descriptor() ([]byte, []int) {
+	return file_api_v2_activity_service_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Activity) GetId() int32 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+func (x *Activity) GetCreatorId() int32 {
+	if x != nil {
+		return x.CreatorId
+	}
+	return 0
+}
+
+func (x *Activity) GetType() string {
+	if x != nil {
+		return x.Type
+	}
+	return ""
+}
+
+func (x *Activity) GetLevel() string {
+	if x != nil {
+		return x.Level
+	}
+	return ""
+}
+
+func (x *Activity) GetCreateTime() *timestamppb.Timestamp {
+	if x != nil {
+		return x.CreateTime
+	}
+	return nil
+}
+
+func (x *Activity) GetPayload() *ActivityPayload {
+	if x != nil {
+		return x.Payload
+	}
+	return nil
+}
+
+type ActivityMemoCommentPayload struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	MemoId        int32 `protobuf:"varint,1,opt,name=memo_id,json=memoId,proto3" json:"memo_id,omitempty"`
+	RelatedMemoId int32 `protobuf:"varint,2,opt,name=related_memo_id,json=relatedMemoId,proto3" json:"related_memo_id,omitempty"`
+}
+
+func (x *ActivityMemoCommentPayload) Reset() {
+	*x = ActivityMemoCommentPayload{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_api_v2_activity_service_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ActivityMemoCommentPayload) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ActivityMemoCommentPayload) ProtoMessage() {}
+
+func (x *ActivityMemoCommentPayload) ProtoReflect() protoreflect.Message {
+	mi := &file_api_v2_activity_service_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ActivityMemoCommentPayload.ProtoReflect.Descriptor instead.
+func (*ActivityMemoCommentPayload) Descriptor() ([]byte, []int) {
+	return file_api_v2_activity_service_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *ActivityMemoCommentPayload) GetMemoId() int32 {
+	if x != nil {
+		return x.MemoId
+	}
+	return 0
+}
+
+func (x *ActivityMemoCommentPayload) GetRelatedMemoId() int32 {
+	if x != nil {
+		return x.RelatedMemoId
+	}
+	return 0
+}
+
+type ActivityPayload struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	MemoComment *ActivityMemoCommentPayload `protobuf:"bytes,1,opt,name=memo_comment,json=memoComment,proto3" json:"memo_comment,omitempty"`
+}
+
+func (x *ActivityPayload) Reset() {
+	*x = ActivityPayload{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_api_v2_activity_service_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ActivityPayload) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ActivityPayload) ProtoMessage() {}
+
+func (x *ActivityPayload) ProtoReflect() protoreflect.Message {
+	mi := &file_api_v2_activity_service_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ActivityPayload.ProtoReflect.Descriptor instead.
+func (*ActivityPayload) Descriptor() ([]byte, []int) {
+	return file_api_v2_activity_service_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *ActivityPayload) GetMemoComment() *ActivityMemoCommentPayload {
+	if x != nil {
+		return x.MemoComment
+	}
+	return nil
+}
+
+type GetActivityRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id int32 `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
+}
+
+func (x *GetActivityRequest) Reset() {
+	*x = GetActivityRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_api_v2_activity_service_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetActivityRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetActivityRequest) ProtoMessage() {}
+
+func (x *GetActivityRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_api_v2_activity_service_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetActivityRequest.ProtoReflect.Descriptor instead.
+func (*GetActivityRequest) Descriptor() ([]byte, []int) {
+	return file_api_v2_activity_service_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *GetActivityRequest) GetId() int32 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+type GetActivityResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Activity *Activity `protobuf:"bytes,1,opt,name=activity,proto3" json:"activity,omitempty"`
+}
+
+func (x *GetActivityResponse) Reset() {
+	*x = GetActivityResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_api_v2_activity_service_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetActivityResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetActivityResponse) ProtoMessage() {}
+
+func (x *GetActivityResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_api_v2_activity_service_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetActivityResponse.ProtoReflect.Descriptor instead.
+func (*GetActivityResponse) Descriptor() ([]byte, []int) {
+	return file_api_v2_activity_service_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *GetActivityResponse) GetActivity() *Activity {
+	if x != nil {
+		return x.Activity
+	}
+	return nil
+}
+
+var File_api_v2_activity_service_proto protoreflect.FileDescriptor
+
+var file_api_v2_activity_service_proto_rawDesc = []byte{
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+	0x65, 0x6d, 0x6f, 0x73, 0x2e, 0x41, 0x70, 0x69, 0x2e, 0x56, 0x32, 0xca, 0x02, 0x0c, 0x4d, 0x65,
+	0x6d, 0x6f, 0x73, 0x5c, 0x41, 0x70, 0x69, 0x5c, 0x56, 0x32, 0xe2, 0x02, 0x18, 0x4d, 0x65, 0x6d,
+	0x6f, 0x73, 0x5c, 0x41, 0x70, 0x69, 0x5c, 0x56, 0x32, 0x5c, 0x47, 0x50, 0x42, 0x4d, 0x65, 0x74,
+	0x61, 0x64, 0x61, 0x74, 0x61, 0xea, 0x02, 0x0e, 0x4d, 0x65, 0x6d, 0x6f, 0x73, 0x3a, 0x3a, 0x41,
+	0x70, 0x69, 0x3a, 0x3a, 0x56, 0x32, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_api_v2_activity_service_proto_rawDescOnce sync.Once
+	file_api_v2_activity_service_proto_rawDescData = file_api_v2_activity_service_proto_rawDesc
+)
+
+func file_api_v2_activity_service_proto_rawDescGZIP() []byte {
+	file_api_v2_activity_service_proto_rawDescOnce.Do(func() {
+		file_api_v2_activity_service_proto_rawDescData = protoimpl.X.CompressGZIP(file_api_v2_activity_service_proto_rawDescData)
+	})
+	return file_api_v2_activity_service_proto_rawDescData
+}
+
+var file_api_v2_activity_service_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
+var file_api_v2_activity_service_proto_goTypes = []interface{}{
+	(*Activity)(nil),                   // 0: memos.api.v2.Activity
+	(*ActivityMemoCommentPayload)(nil), // 1: memos.api.v2.ActivityMemoCommentPayload
+	(*ActivityPayload)(nil),            // 2: memos.api.v2.ActivityPayload
+	(*GetActivityRequest)(nil),         // 3: memos.api.v2.GetActivityRequest
+	(*GetActivityResponse)(nil),        // 4: memos.api.v2.GetActivityResponse
+	(*timestamppb.Timestamp)(nil),      // 5: google.protobuf.Timestamp
+}
+var file_api_v2_activity_service_proto_depIdxs = []int32{
+	5, // 0: memos.api.v2.Activity.create_time:type_name -> google.protobuf.Timestamp
+	2, // 1: memos.api.v2.Activity.payload:type_name -> memos.api.v2.ActivityPayload
+	1, // 2: memos.api.v2.ActivityPayload.memo_comment:type_name -> memos.api.v2.ActivityMemoCommentPayload
+	0, // 3: memos.api.v2.GetActivityResponse.activity:type_name -> memos.api.v2.Activity
+	3, // 4: memos.api.v2.ActivityService.GetActivity:input_type -> memos.api.v2.GetActivityRequest
+	4, // 5: memos.api.v2.ActivityService.GetActivity:output_type -> memos.api.v2.GetActivityResponse
+	5, // [5:6] is the sub-list for method output_type
+	4, // [4:5] is the sub-list for method input_type
+	4, // [4:4] is the sub-list for extension type_name
+	4, // [4:4] is the sub-list for extension extendee
+	0, // [0:4] is the sub-list for field type_name
+}
+
+func init() { file_api_v2_activity_service_proto_init() }
+func file_api_v2_activity_service_proto_init() {
+	if File_api_v2_activity_service_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_api_v2_activity_service_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Activity); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_api_v2_activity_service_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ActivityMemoCommentPayload); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_api_v2_activity_service_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ActivityPayload); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_api_v2_activity_service_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetActivityRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_api_v2_activity_service_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetActivityResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_api_v2_activity_service_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   5,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_api_v2_activity_service_proto_goTypes,
+		DependencyIndexes: file_api_v2_activity_service_proto_depIdxs,
+		MessageInfos:      file_api_v2_activity_service_proto_msgTypes,
+	}.Build()
+	File_api_v2_activity_service_proto = out.File
+	file_api_v2_activity_service_proto_rawDesc = nil
+	file_api_v2_activity_service_proto_goTypes = nil
+	file_api_v2_activity_service_proto_depIdxs = nil
+}

proto/gen/api/v2/activity_service.pb.gw.go

@@ -0,0 +1,173 @@
+// Code generated by protoc-gen-grpc-gateway. DO NOT EDIT.
+// source: api/v2/activity_service.proto
+
+/*
+Package apiv2 is a reverse proxy.
+
+It translates gRPC into RESTful JSON APIs.
+*/
+package apiv2
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"github.com/grpc-ecosystem/grpc-gateway/v2/utilities"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/proto"
+)
+
+// Suppress "imported and not used" errors
+var _ codes.Code
+var _ io.Reader
+var _ status.Status
+var _ = runtime.String
+var _ = utilities.NewDoubleArray
+var _ = metadata.Join
+
+var (
+	filter_ActivityService_GetActivity_0 = &utilities.DoubleArray{Encoding: map[string]int{}, Base: []int(nil), Check: []int(nil)}
+)
+
+func request_ActivityService_GetActivity_0(ctx context.Context, marshaler runtime.Marshaler, client ActivityServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetActivityRequest
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_ActivityService_GetActivity_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.GetActivity(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_ActivityService_GetActivity_0(ctx context.Context, marshaler runtime.Marshaler, server ActivityServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetActivityRequest
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_ActivityService_GetActivity_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.GetActivity(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+// RegisterActivityServiceHandlerServer registers the http handlers for service ActivityService to "mux".
+// UnaryRPC     :call ActivityServiceServer directly.
+// StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
+// Note that using this registration option will cause many gRPC library features to stop working. Consider using RegisterActivityServiceHandlerFromEndpoint instead.
+func RegisterActivityServiceHandlerServer(ctx context.Context, mux *runtime.ServeMux, server ActivityServiceServer) error {
+
+	mux.Handle("GET", pattern_ActivityService_GetActivity_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateIncomingContext(ctx, mux, req, "/memos.api.v2.ActivityService/GetActivity", runtime.WithHTTPPathPattern("/v2/activities"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_ActivityService_GetActivity_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_ActivityService_GetActivity_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+// RegisterActivityServiceHandlerFromEndpoint is same as RegisterActivityServiceHandler but
+// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
+func RegisterActivityServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
+	conn, err := grpc.DialContext(ctx, endpoint, opts...)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+			return
+		}
+		go func() {
+			<-ctx.Done()
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+		}()
+	}()
+
+	return RegisterActivityServiceHandler(ctx, mux, conn)
+}
+
+// RegisterActivityServiceHandler registers the http handlers for service ActivityService to "mux".
+// The handlers forward requests to the grpc endpoint over "conn".
+func RegisterActivityServiceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
+	return RegisterActivityServiceHandlerClient(ctx, mux, NewActivityServiceClient(conn))
+}
+
+// RegisterActivityServiceHandlerClient registers the http handlers for service ActivityService
+// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "ActivityServiceClient".
+// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "ActivityServiceClient"
+// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
+// "ActivityServiceClient" to call the correct interceptors.
+func RegisterActivityServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client ActivityServiceClient) error {
+
+	mux.Handle("GET", pattern_ActivityService_GetActivity_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		var err error
+		var annotatedContext context.Context
+		annotatedContext, err = runtime.AnnotateContext(ctx, mux, req, "/memos.api.v2.ActivityService/GetActivity", runtime.WithHTTPPathPattern("/v2/activities"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_ActivityService_GetActivity_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_ActivityService_GetActivity_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+var (
+	pattern_ActivityService_GetActivity_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1}, []string{"v2", "activities"}, ""))
+)
+
+var (
+	forward_ActivityService_GetActivity_0 = runtime.ForwardResponseMessage
+)

proto/gen/api/v2/activity_service_grpc.pb.go

@@ -0,0 +1,109 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.3.0
+// - protoc             (unknown)
+// source: api/v2/activity_service.proto
+
+package apiv2
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+const (
+	ActivityService_GetActivity_FullMethodName = "/memos.api.v2.ActivityService/GetActivity"
+)
+
+// ActivityServiceClient is the client API for ActivityService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type ActivityServiceClient interface {
+	GetActivity(ctx context.Context, in *GetActivityRequest, opts ...grpc.CallOption) (*GetActivityResponse, error)
+}
+
+type activityServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewActivityServiceClient(cc grpc.ClientConnInterface) ActivityServiceClient {
+	return &activityServiceClient{cc}
+}
+
+func (c *activityServiceClient) GetActivity(ctx context.Context, in *GetActivityRequest, opts ...grpc.CallOption) (*GetActivityResponse, error) {
+	out := new(GetActivityResponse)
+	err := c.cc.Invoke(ctx, ActivityService_GetActivity_FullMethodName, in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// ActivityServiceServer is the server API for ActivityService service.
+// All implementations must embed UnimplementedActivityServiceServer
+// for forward compatibility
+type ActivityServiceServer interface {
+	GetActivity(context.Context, *GetActivityRequest) (*GetActivityResponse, error)
+	mustEmbedUnimplementedActivityServiceServer()
+}
+
+// UnimplementedActivityServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedActivityServiceServer struct {
+}
+
+func (UnimplementedActivityServiceServer) GetActivity(context.Context, *GetActivityRequest) (*GetActivityResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetActivity not implemented")
+}
+func (UnimplementedActivityServiceServer) mustEmbedUnimplementedActivityServiceServer() {}
+
+// UnsafeActivityServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to ActivityServiceServer will
+// result in compilation errors.
+type UnsafeActivityServiceServer interface {
+	mustEmbedUnimplementedActivityServiceServer()
+}
+
+func RegisterActivityServiceServer(s grpc.ServiceRegistrar, srv ActivityServiceServer) {
+	s.RegisterService(&ActivityService_ServiceDesc, srv)
+}
+
+func _ActivityService_GetActivity_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetActivityRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ActivityServiceServer).GetActivity(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ActivityService_GetActivity_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ActivityServiceServer).GetActivity(ctx, req.(*GetActivityRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// ActivityService_ServiceDesc is the grpc.ServiceDesc for ActivityService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var ActivityService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "memos.api.v2.ActivityService",
+	HandlerType: (*ActivityServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "GetActivity",
+			Handler:    _ActivityService_GetActivity_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "api/v2/activity_service.proto",
+}

store/activity.go

@@ -50,3 +50,14 @@ func (s *Store) CreateActivity(ctx context.Context, create *Activity) (*Activity
 func (s *Store) ListActivities(ctx context.Context, find *FindActivity) ([]*Activity, error) {
 	return s.driver.ListActivities(ctx, find)
 }
+
+func (s *Store) GetActivity(ctx context.Context, find *FindActivity) (*Activity, error) {
+	list, err := s.ListActivities(ctx, find)
+	if err != nil {
+		return nil, err
+	}
+	if len(list) == 0 {
+		return nil, nil
+	}
+	return list[0], nil
+}