diff --git a/chats/Makefile b/chats/Makefile
index 1cd3626..54d5d7b 100644
--- a/chats/Makefile
+++ b/chats/Makefile
@@ -11,7 +11,7 @@ proto:
 
 docs:
 	protoc --openapi_out=. --proto_path=. --micro_out=. --go_out=:. proto/chats.proto
-	@redoc-cli bundle api-protobuf.json
+	@redoc-cli bundle api-chats.json
 
 .PHONY: build
 build:
diff --git a/chats/proto/chats.pb.go b/chats/proto/chats.pb.go
index f035148..1c48903 100644
--- a/chats/proto/chats.pb.go
+++ b/chats/proto/chats.pb.go
@@ -1,736 +1,471 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.23.0
-// 	protoc        v3.13.0
 // source: proto/chats.proto
 
 package chats
 
 import (
+	fmt "fmt"
 	proto "github.com/golang/protobuf/proto"
 	timestamp "github.com/golang/protobuf/ptypes/timestamp"
 	wrappers "github.com/golang/protobuf/ptypes/wrappers"
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
+	math "math"
 )
 
-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)
-)
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
 
 type Chat struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Id        string               `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-	UserIds   []string             `protobuf:"bytes,2,rep,name=user_ids,json=userIds,proto3" json:"user_ids,omitempty"`
-	CreatedAt *timestamp.Timestamp `protobuf:"bytes,3,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"`
+	Id                   string               `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	UserIds              []string             `protobuf:"bytes,2,rep,name=user_ids,json=userIds,proto3" json:"user_ids,omitempty"`
+	CreatedAt            *timestamp.Timestamp `protobuf:"bytes,3,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}             `json:"-"`
+	XXX_unrecognized     []byte               `json:"-"`
+	XXX_sizecache        int32                `json:"-"`
 }
 
-func (x *Chat) Reset() {
-	*x = Chat{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_chats_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *Chat) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Chat) ProtoMessage() {}
-
-func (x *Chat) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_chats_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 Chat.ProtoReflect.Descriptor instead.
+func (m *Chat) Reset()         { *m = Chat{} }
+func (m *Chat) String() string { return proto.CompactTextString(m) }
+func (*Chat) ProtoMessage()    {}
 func (*Chat) Descriptor() ([]byte, []int) {
-	return file_proto_chats_proto_rawDescGZIP(), []int{0}
+	return fileDescriptor_5f41ca1a87b945e7, []int{0}
 }
 
-func (x *Chat) GetId() string {
-	if x != nil {
-		return x.Id
+func (m *Chat) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Chat.Unmarshal(m, b)
+}
+func (m *Chat) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Chat.Marshal(b, m, deterministic)
+}
+func (m *Chat) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Chat.Merge(m, src)
+}
+func (m *Chat) XXX_Size() int {
+	return xxx_messageInfo_Chat.Size(m)
+}
+func (m *Chat) XXX_DiscardUnknown() {
+	xxx_messageInfo_Chat.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Chat proto.InternalMessageInfo
+
+func (m *Chat) GetId() string {
+	if m != nil {
+		return m.Id
 	}
 	return ""
 }
 
-func (x *Chat) GetUserIds() []string {
-	if x != nil {
-		return x.UserIds
+func (m *Chat) GetUserIds() []string {
+	if m != nil {
+		return m.UserIds
 	}
 	return nil
 }
 
-func (x *Chat) GetCreatedAt() *timestamp.Timestamp {
-	if x != nil {
-		return x.CreatedAt
+func (m *Chat) GetCreatedAt() *timestamp.Timestamp {
+	if m != nil {
+		return m.CreatedAt
 	}
 	return nil
 }
 
 type Message struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Id       string               `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-	AuthorId string               `protobuf:"bytes,2,opt,name=author_id,json=authorId,proto3" json:"author_id,omitempty"`
-	ChatId   string               `protobuf:"bytes,3,opt,name=chat_id,json=chatId,proto3" json:"chat_id,omitempty"`
-	Text     string               `protobuf:"bytes,4,opt,name=text,proto3" json:"text,omitempty"`
-	SentAt   *timestamp.Timestamp `protobuf:"bytes,5,opt,name=sent_at,json=sentAt,proto3" json:"sent_at,omitempty"`
+	Id                   string               `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	AuthorId             string               `protobuf:"bytes,2,opt,name=author_id,json=authorId,proto3" json:"author_id,omitempty"`
+	ChatId               string               `protobuf:"bytes,3,opt,name=chat_id,json=chatId,proto3" json:"chat_id,omitempty"`
+	Text                 string               `protobuf:"bytes,4,opt,name=text,proto3" json:"text,omitempty"`
+	SentAt               *timestamp.Timestamp `protobuf:"bytes,5,opt,name=sent_at,json=sentAt,proto3" json:"sent_at,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}             `json:"-"`
+	XXX_unrecognized     []byte               `json:"-"`
+	XXX_sizecache        int32                `json:"-"`
 }
 
-func (x *Message) Reset() {
-	*x = Message{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_chats_proto_msgTypes[1]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *Message) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Message) ProtoMessage() {}
-
-func (x *Message) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_chats_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 Message.ProtoReflect.Descriptor instead.
+func (m *Message) Reset()         { *m = Message{} }
+func (m *Message) String() string { return proto.CompactTextString(m) }
+func (*Message) ProtoMessage()    {}
 func (*Message) Descriptor() ([]byte, []int) {
-	return file_proto_chats_proto_rawDescGZIP(), []int{1}
+	return fileDescriptor_5f41ca1a87b945e7, []int{1}
 }
 
-func (x *Message) GetId() string {
-	if x != nil {
-		return x.Id
+func (m *Message) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Message.Unmarshal(m, b)
+}
+func (m *Message) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Message.Marshal(b, m, deterministic)
+}
+func (m *Message) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Message.Merge(m, src)
+}
+func (m *Message) XXX_Size() int {
+	return xxx_messageInfo_Message.Size(m)
+}
+func (m *Message) XXX_DiscardUnknown() {
+	xxx_messageInfo_Message.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Message proto.InternalMessageInfo
+
+func (m *Message) GetId() string {
+	if m != nil {
+		return m.Id
 	}
 	return ""
 }
 
-func (x *Message) GetAuthorId() string {
-	if x != nil {
-		return x.AuthorId
+func (m *Message) GetAuthorId() string {
+	if m != nil {
+		return m.AuthorId
 	}
 	return ""
 }
 
-func (x *Message) GetChatId() string {
-	if x != nil {
-		return x.ChatId
+func (m *Message) GetChatId() string {
+	if m != nil {
+		return m.ChatId
 	}
 	return ""
 }
 
-func (x *Message) GetText() string {
-	if x != nil {
-		return x.Text
+func (m *Message) GetText() string {
+	if m != nil {
+		return m.Text
 	}
 	return ""
 }
 
-func (x *Message) GetSentAt() *timestamp.Timestamp {
-	if x != nil {
-		return x.SentAt
+func (m *Message) GetSentAt() *timestamp.Timestamp {
+	if m != nil {
+		return m.SentAt
 	}
 	return nil
 }
 
 type CreateChatRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	UserIds []string `protobuf:"bytes,1,rep,name=user_ids,json=userIds,proto3" json:"user_ids,omitempty"`
+	UserIds              []string `protobuf:"bytes,1,rep,name=user_ids,json=userIds,proto3" json:"user_ids,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
-func (x *CreateChatRequest) Reset() {
-	*x = CreateChatRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_chats_proto_msgTypes[2]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *CreateChatRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*CreateChatRequest) ProtoMessage() {}
-
-func (x *CreateChatRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_chats_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 CreateChatRequest.ProtoReflect.Descriptor instead.
+func (m *CreateChatRequest) Reset()         { *m = CreateChatRequest{} }
+func (m *CreateChatRequest) String() string { return proto.CompactTextString(m) }
+func (*CreateChatRequest) ProtoMessage()    {}
 func (*CreateChatRequest) Descriptor() ([]byte, []int) {
-	return file_proto_chats_proto_rawDescGZIP(), []int{2}
+	return fileDescriptor_5f41ca1a87b945e7, []int{2}
 }
 
-func (x *CreateChatRequest) GetUserIds() []string {
-	if x != nil {
-		return x.UserIds
+func (m *CreateChatRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_CreateChatRequest.Unmarshal(m, b)
+}
+func (m *CreateChatRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_CreateChatRequest.Marshal(b, m, deterministic)
+}
+func (m *CreateChatRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CreateChatRequest.Merge(m, src)
+}
+func (m *CreateChatRequest) XXX_Size() int {
+	return xxx_messageInfo_CreateChatRequest.Size(m)
+}
+func (m *CreateChatRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_CreateChatRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CreateChatRequest proto.InternalMessageInfo
+
+func (m *CreateChatRequest) GetUserIds() []string {
+	if m != nil {
+		return m.UserIds
 	}
 	return nil
 }
 
 type CreateChatResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Chat *Chat `protobuf:"bytes,1,opt,name=chat,proto3" json:"chat,omitempty"`
+	Chat                 *Chat    `protobuf:"bytes,1,opt,name=chat,proto3" json:"chat,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
-func (x *CreateChatResponse) Reset() {
-	*x = CreateChatResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_chats_proto_msgTypes[3]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *CreateChatResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*CreateChatResponse) ProtoMessage() {}
-
-func (x *CreateChatResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_chats_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 CreateChatResponse.ProtoReflect.Descriptor instead.
+func (m *CreateChatResponse) Reset()         { *m = CreateChatResponse{} }
+func (m *CreateChatResponse) String() string { return proto.CompactTextString(m) }
+func (*CreateChatResponse) ProtoMessage()    {}
 func (*CreateChatResponse) Descriptor() ([]byte, []int) {
-	return file_proto_chats_proto_rawDescGZIP(), []int{3}
+	return fileDescriptor_5f41ca1a87b945e7, []int{3}
 }
 
-func (x *CreateChatResponse) GetChat() *Chat {
-	if x != nil {
-		return x.Chat
+func (m *CreateChatResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_CreateChatResponse.Unmarshal(m, b)
+}
+func (m *CreateChatResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_CreateChatResponse.Marshal(b, m, deterministic)
+}
+func (m *CreateChatResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CreateChatResponse.Merge(m, src)
+}
+func (m *CreateChatResponse) XXX_Size() int {
+	return xxx_messageInfo_CreateChatResponse.Size(m)
+}
+func (m *CreateChatResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_CreateChatResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CreateChatResponse proto.InternalMessageInfo
+
+func (m *CreateChatResponse) GetChat() *Chat {
+	if m != nil {
+		return m.Chat
 	}
 	return nil
 }
 
 type CreateMessageRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Id       string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-	ChatId   string `protobuf:"bytes,2,opt,name=chat_id,json=chatId,proto3" json:"chat_id,omitempty"`
-	AuthorId string `protobuf:"bytes,3,opt,name=author_id,json=authorId,proto3" json:"author_id,omitempty"`
-	Text     string `protobuf:"bytes,4,opt,name=text,proto3" json:"text,omitempty"`
+	Id                   string   `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	ChatId               string   `protobuf:"bytes,2,opt,name=chat_id,json=chatId,proto3" json:"chat_id,omitempty"`
+	AuthorId             string   `protobuf:"bytes,3,opt,name=author_id,json=authorId,proto3" json:"author_id,omitempty"`
+	Text                 string   `protobuf:"bytes,4,opt,name=text,proto3" json:"text,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
-func (x *CreateMessageRequest) Reset() {
-	*x = CreateMessageRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_chats_proto_msgTypes[4]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *CreateMessageRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*CreateMessageRequest) ProtoMessage() {}
-
-func (x *CreateMessageRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_chats_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 CreateMessageRequest.ProtoReflect.Descriptor instead.
+func (m *CreateMessageRequest) Reset()         { *m = CreateMessageRequest{} }
+func (m *CreateMessageRequest) String() string { return proto.CompactTextString(m) }
+func (*CreateMessageRequest) ProtoMessage()    {}
 func (*CreateMessageRequest) Descriptor() ([]byte, []int) {
-	return file_proto_chats_proto_rawDescGZIP(), []int{4}
+	return fileDescriptor_5f41ca1a87b945e7, []int{4}
 }
 
-func (x *CreateMessageRequest) GetId() string {
-	if x != nil {
-		return x.Id
+func (m *CreateMessageRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_CreateMessageRequest.Unmarshal(m, b)
+}
+func (m *CreateMessageRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_CreateMessageRequest.Marshal(b, m, deterministic)
+}
+func (m *CreateMessageRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CreateMessageRequest.Merge(m, src)
+}
+func (m *CreateMessageRequest) XXX_Size() int {
+	return xxx_messageInfo_CreateMessageRequest.Size(m)
+}
+func (m *CreateMessageRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_CreateMessageRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CreateMessageRequest proto.InternalMessageInfo
+
+func (m *CreateMessageRequest) GetId() string {
+	if m != nil {
+		return m.Id
 	}
 	return ""
 }
 
-func (x *CreateMessageRequest) GetChatId() string {
-	if x != nil {
-		return x.ChatId
+func (m *CreateMessageRequest) GetChatId() string {
+	if m != nil {
+		return m.ChatId
 	}
 	return ""
 }
 
-func (x *CreateMessageRequest) GetAuthorId() string {
-	if x != nil {
-		return x.AuthorId
+func (m *CreateMessageRequest) GetAuthorId() string {
+	if m != nil {
+		return m.AuthorId
 	}
 	return ""
 }
 
-func (x *CreateMessageRequest) GetText() string {
-	if x != nil {
-		return x.Text
+func (m *CreateMessageRequest) GetText() string {
+	if m != nil {
+		return m.Text
 	}
 	return ""
 }
 
 type CreateMessageResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Message *Message `protobuf:"bytes,1,opt,name=message,proto3" json:"message,omitempty"`
+	Message              *Message `protobuf:"bytes,1,opt,name=message,proto3" json:"message,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
-func (x *CreateMessageResponse) Reset() {
-	*x = CreateMessageResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_chats_proto_msgTypes[5]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *CreateMessageResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*CreateMessageResponse) ProtoMessage() {}
-
-func (x *CreateMessageResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_chats_proto_msgTypes[5]
-	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 CreateMessageResponse.ProtoReflect.Descriptor instead.
+func (m *CreateMessageResponse) Reset()         { *m = CreateMessageResponse{} }
+func (m *CreateMessageResponse) String() string { return proto.CompactTextString(m) }
+func (*CreateMessageResponse) ProtoMessage()    {}
 func (*CreateMessageResponse) Descriptor() ([]byte, []int) {
-	return file_proto_chats_proto_rawDescGZIP(), []int{5}
+	return fileDescriptor_5f41ca1a87b945e7, []int{5}
 }
 
-func (x *CreateMessageResponse) GetMessage() *Message {
-	if x != nil {
-		return x.Message
+func (m *CreateMessageResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_CreateMessageResponse.Unmarshal(m, b)
+}
+func (m *CreateMessageResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_CreateMessageResponse.Marshal(b, m, deterministic)
+}
+func (m *CreateMessageResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CreateMessageResponse.Merge(m, src)
+}
+func (m *CreateMessageResponse) XXX_Size() int {
+	return xxx_messageInfo_CreateMessageResponse.Size(m)
+}
+func (m *CreateMessageResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_CreateMessageResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CreateMessageResponse proto.InternalMessageInfo
+
+func (m *CreateMessageResponse) GetMessage() *Message {
+	if m != nil {
+		return m.Message
 	}
 	return nil
 }
 
 type ListMessagesRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	ChatId     string               `protobuf:"bytes,1,opt,name=chat_id,json=chatId,proto3" json:"chat_id,omitempty"`
-	SentBefore *timestamp.Timestamp `protobuf:"bytes,2,opt,name=sent_before,json=sentBefore,proto3" json:"sent_before,omitempty"`
-	Limit      *wrappers.Int32Value `protobuf:"bytes,3,opt,name=limit,proto3" json:"limit,omitempty"`
+	ChatId               string               `protobuf:"bytes,1,opt,name=chat_id,json=chatId,proto3" json:"chat_id,omitempty"`
+	SentBefore           *timestamp.Timestamp `protobuf:"bytes,2,opt,name=sent_before,json=sentBefore,proto3" json:"sent_before,omitempty"`
+	Limit                *wrappers.Int32Value `protobuf:"bytes,3,opt,name=limit,proto3" json:"limit,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}             `json:"-"`
+	XXX_unrecognized     []byte               `json:"-"`
+	XXX_sizecache        int32                `json:"-"`
 }
 
-func (x *ListMessagesRequest) Reset() {
-	*x = ListMessagesRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_chats_proto_msgTypes[6]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *ListMessagesRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*ListMessagesRequest) ProtoMessage() {}
-
-func (x *ListMessagesRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_chats_proto_msgTypes[6]
-	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 ListMessagesRequest.ProtoReflect.Descriptor instead.
+func (m *ListMessagesRequest) Reset()         { *m = ListMessagesRequest{} }
+func (m *ListMessagesRequest) String() string { return proto.CompactTextString(m) }
+func (*ListMessagesRequest) ProtoMessage()    {}
 func (*ListMessagesRequest) Descriptor() ([]byte, []int) {
-	return file_proto_chats_proto_rawDescGZIP(), []int{6}
+	return fileDescriptor_5f41ca1a87b945e7, []int{6}
 }
 
-func (x *ListMessagesRequest) GetChatId() string {
-	if x != nil {
-		return x.ChatId
+func (m *ListMessagesRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ListMessagesRequest.Unmarshal(m, b)
+}
+func (m *ListMessagesRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ListMessagesRequest.Marshal(b, m, deterministic)
+}
+func (m *ListMessagesRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ListMessagesRequest.Merge(m, src)
+}
+func (m *ListMessagesRequest) XXX_Size() int {
+	return xxx_messageInfo_ListMessagesRequest.Size(m)
+}
+func (m *ListMessagesRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_ListMessagesRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ListMessagesRequest proto.InternalMessageInfo
+
+func (m *ListMessagesRequest) GetChatId() string {
+	if m != nil {
+		return m.ChatId
 	}
 	return ""
 }
 
-func (x *ListMessagesRequest) GetSentBefore() *timestamp.Timestamp {
-	if x != nil {
-		return x.SentBefore
+func (m *ListMessagesRequest) GetSentBefore() *timestamp.Timestamp {
+	if m != nil {
+		return m.SentBefore
 	}
 	return nil
 }
 
-func (x *ListMessagesRequest) GetLimit() *wrappers.Int32Value {
-	if x != nil {
-		return x.Limit
+func (m *ListMessagesRequest) GetLimit() *wrappers.Int32Value {
+	if m != nil {
+		return m.Limit
 	}
 	return nil
 }
 
 type ListMessagesResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Messages []*Message `protobuf:"bytes,1,rep,name=messages,proto3" json:"messages,omitempty"`
+	Messages             []*Message `protobuf:"bytes,1,rep,name=messages,proto3" json:"messages,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}   `json:"-"`
+	XXX_unrecognized     []byte     `json:"-"`
+	XXX_sizecache        int32      `json:"-"`
 }
 
-func (x *ListMessagesResponse) Reset() {
-	*x = ListMessagesResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_chats_proto_msgTypes[7]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *ListMessagesResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*ListMessagesResponse) ProtoMessage() {}
-
-func (x *ListMessagesResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_chats_proto_msgTypes[7]
-	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 ListMessagesResponse.ProtoReflect.Descriptor instead.
+func (m *ListMessagesResponse) Reset()         { *m = ListMessagesResponse{} }
+func (m *ListMessagesResponse) String() string { return proto.CompactTextString(m) }
+func (*ListMessagesResponse) ProtoMessage()    {}
 func (*ListMessagesResponse) Descriptor() ([]byte, []int) {
-	return file_proto_chats_proto_rawDescGZIP(), []int{7}
+	return fileDescriptor_5f41ca1a87b945e7, []int{7}
 }
 
-func (x *ListMessagesResponse) GetMessages() []*Message {
-	if x != nil {
-		return x.Messages
+func (m *ListMessagesResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ListMessagesResponse.Unmarshal(m, b)
+}
+func (m *ListMessagesResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ListMessagesResponse.Marshal(b, m, deterministic)
+}
+func (m *ListMessagesResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ListMessagesResponse.Merge(m, src)
+}
+func (m *ListMessagesResponse) XXX_Size() int {
+	return xxx_messageInfo_ListMessagesResponse.Size(m)
+}
+func (m *ListMessagesResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_ListMessagesResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ListMessagesResponse proto.InternalMessageInfo
+
+func (m *ListMessagesResponse) GetMessages() []*Message {
+	if m != nil {
+		return m.Messages
 	}
 	return nil
 }
 
-var File_proto_chats_proto protoreflect.FileDescriptor
-
-var file_proto_chats_proto_rawDesc = []byte{
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-	0x3b, 0x63, 0x68, 0x61, 0x74, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+func init() {
+	proto.RegisterType((*Chat)(nil), "chats.Chat")
+	proto.RegisterType((*Message)(nil), "chats.Message")
+	proto.RegisterType((*CreateChatRequest)(nil), "chats.CreateChatRequest")
+	proto.RegisterType((*CreateChatResponse)(nil), "chats.CreateChatResponse")
+	proto.RegisterType((*CreateMessageRequest)(nil), "chats.CreateMessageRequest")
+	proto.RegisterType((*CreateMessageResponse)(nil), "chats.CreateMessageResponse")
+	proto.RegisterType((*ListMessagesRequest)(nil), "chats.ListMessagesRequest")
+	proto.RegisterType((*ListMessagesResponse)(nil), "chats.ListMessagesResponse")
 }
 
-var (
-	file_proto_chats_proto_rawDescOnce sync.Once
-	file_proto_chats_proto_rawDescData = file_proto_chats_proto_rawDesc
-)
+func init() { proto.RegisterFile("proto/chats.proto", fileDescriptor_5f41ca1a87b945e7) }
 
-func file_proto_chats_proto_rawDescGZIP() []byte {
-	file_proto_chats_proto_rawDescOnce.Do(func() {
-		file_proto_chats_proto_rawDescData = protoimpl.X.CompressGZIP(file_proto_chats_proto_rawDescData)
-	})
-	return file_proto_chats_proto_rawDescData
-}
-
-var file_proto_chats_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
-var file_proto_chats_proto_goTypes = []interface{}{
-	(*Chat)(nil),                  // 0: chats.Chat
-	(*Message)(nil),               // 1: chats.Message
-	(*CreateChatRequest)(nil),     // 2: chats.CreateChatRequest
-	(*CreateChatResponse)(nil),    // 3: chats.CreateChatResponse
-	(*CreateMessageRequest)(nil),  // 4: chats.CreateMessageRequest
-	(*CreateMessageResponse)(nil), // 5: chats.CreateMessageResponse
-	(*ListMessagesRequest)(nil),   // 6: chats.ListMessagesRequest
-	(*ListMessagesResponse)(nil),  // 7: chats.ListMessagesResponse
-	(*timestamp.Timestamp)(nil),   // 8: google.protobuf.Timestamp
-	(*wrappers.Int32Value)(nil),   // 9: google.protobuf.Int32Value
-}
-var file_proto_chats_proto_depIdxs = []int32{
-	8,  // 0: chats.Chat.created_at:type_name -> google.protobuf.Timestamp
-	8,  // 1: chats.Message.sent_at:type_name -> google.protobuf.Timestamp
-	0,  // 2: chats.CreateChatResponse.chat:type_name -> chats.Chat
-	1,  // 3: chats.CreateMessageResponse.message:type_name -> chats.Message
-	8,  // 4: chats.ListMessagesRequest.sent_before:type_name -> google.protobuf.Timestamp
-	9,  // 5: chats.ListMessagesRequest.limit:type_name -> google.protobuf.Int32Value
-	1,  // 6: chats.ListMessagesResponse.messages:type_name -> chats.Message
-	2,  // 7: chats.Chats.CreateChat:input_type -> chats.CreateChatRequest
-	4,  // 8: chats.Chats.CreateMessage:input_type -> chats.CreateMessageRequest
-	6,  // 9: chats.Chats.ListMessages:input_type -> chats.ListMessagesRequest
-	3,  // 10: chats.Chats.CreateChat:output_type -> chats.CreateChatResponse
-	5,  // 11: chats.Chats.CreateMessage:output_type -> chats.CreateMessageResponse
-	7,  // 12: chats.Chats.ListMessages:output_type -> chats.ListMessagesResponse
-	10, // [10:13] is the sub-list for method output_type
-	7,  // [7:10] is the sub-list for method input_type
-	7,  // [7:7] is the sub-list for extension type_name
-	7,  // [7:7] is the sub-list for extension extendee
-	0,  // [0:7] is the sub-list for field type_name
-}
-
-func init() { file_proto_chats_proto_init() }
-func file_proto_chats_proto_init() {
-	if File_proto_chats_proto != nil {
-		return
-	}
-	if !protoimpl.UnsafeEnabled {
-		file_proto_chats_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Chat); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_chats_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Message); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_chats_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*CreateChatRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_chats_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*CreateChatResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_chats_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*CreateMessageRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_chats_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*CreateMessageResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_chats_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ListMessagesRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_chats_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ListMessagesResponse); 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_proto_chats_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   8,
-			NumExtensions: 0,
-			NumServices:   1,
-		},
-		GoTypes:           file_proto_chats_proto_goTypes,
-		DependencyIndexes: file_proto_chats_proto_depIdxs,
-		MessageInfos:      file_proto_chats_proto_msgTypes,
-	}.Build()
-	File_proto_chats_proto = out.File
-	file_proto_chats_proto_rawDesc = nil
-	file_proto_chats_proto_goTypes = nil
-	file_proto_chats_proto_depIdxs = nil
+var fileDescriptor_5f41ca1a87b945e7 = []byte{
+	// 484 bytes of a gzipped FileDescriptorProto
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+	0xa7, 0x1f, 0x32, 0x89, 0x06, 0x90, 0xb5, 0xe8, 0x13, 0x91, 0x8e, 0x25, 0xf2, 0x0e, 0x7c, 0x6a,
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+	0x5e, 0x04, 0x00, 0x00,
 }
diff --git a/chats/proto/chats.proto b/chats/proto/chats.proto
index 2da9b87..e46264d 100644
--- a/chats/proto/chats.proto
+++ b/chats/proto/chats.proto
@@ -1,7 +1,9 @@
 syntax = "proto3";
 
 package chats;
+
 option go_package = "proto;chats";
+
 import "google/protobuf/timestamp.proto";
 import "google/protobuf/wrappers.proto";
 
@@ -57,4 +59,4 @@ message ListMessagesRequest {
 
 message ListMessagesResponse {
 	repeated Message messages = 1;
-}
\ No newline at end of file
+}