Streams (#68)

streams/proto/streams.pb.go

@@ -0,0 +1,448 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.23.0
+// 	protoc        v3.13.0
+// source: proto/streams.proto
+
+package streams
+
+import (
+	proto "github.com/golang/protobuf/proto"
+	timestamp "github.com/golang/protobuf/ptypes/timestamp"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	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)
+)
+
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
+type PublishResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *PublishResponse) Reset() {
+	*x = PublishResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_streams_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PublishResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PublishResponse) ProtoMessage() {}
+
+func (x *PublishResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_streams_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 PublishResponse.ProtoReflect.Descriptor instead.
+func (*PublishResponse) Descriptor() ([]byte, []int) {
+	return file_proto_streams_proto_rawDescGZIP(), []int{0}
+}
+
+type Message struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Topic   string               `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
+	Message string               `protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
+	SentAt  *timestamp.Timestamp `protobuf:"bytes,3,opt,name=sent_at,json=sentAt,proto3" json:"sent_at,omitempty"`
+}
+
+func (x *Message) Reset() {
+	*x = Message{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_streams_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_streams_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 (*Message) Descriptor() ([]byte, []int) {
+	return file_proto_streams_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *Message) GetTopic() string {
+	if x != nil {
+		return x.Topic
+	}
+	return ""
+}
+
+func (x *Message) GetMessage() string {
+	if x != nil {
+		return x.Message
+	}
+	return ""
+}
+
+func (x *Message) GetSentAt() *timestamp.Timestamp {
+	if x != nil {
+		return x.SentAt
+	}
+	return nil
+}
+
+type SubscribeRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// topic the user wishes to subscribe to, required
+	Topic string `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
+	// tokens should be provided if the user is not proving an API key on the request (e.g. in cases
+	// where the stream is being consumed directly from the frontend via websockets). tokens can be
+	// generated using the Token RPC
+	Token string `protobuf:"bytes,2,opt,name=token,proto3" json:"token,omitempty"`
+}
+
+func (x *SubscribeRequest) Reset() {
+	*x = SubscribeRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_streams_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SubscribeRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SubscribeRequest) ProtoMessage() {}
+
+func (x *SubscribeRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_streams_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 SubscribeRequest.ProtoReflect.Descriptor instead.
+func (*SubscribeRequest) Descriptor() ([]byte, []int) {
+	return file_proto_streams_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *SubscribeRequest) GetTopic() string {
+	if x != nil {
+		return x.Topic
+	}
+	return ""
+}
+
+func (x *SubscribeRequest) GetToken() string {
+	if x != nil {
+		return x.Token
+	}
+	return ""
+}
+
+type TokenRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// the topic the token should be restricted to, if no topic is required the token can be used to
+	// subscribe to any topic
+	Topic string `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
+}
+
+func (x *TokenRequest) Reset() {
+	*x = TokenRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_streams_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TokenRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TokenRequest) ProtoMessage() {}
+
+func (x *TokenRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_streams_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 TokenRequest.ProtoReflect.Descriptor instead.
+func (*TokenRequest) Descriptor() ([]byte, []int) {
+	return file_proto_streams_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *TokenRequest) GetTopic() string {
+	if x != nil {
+		return x.Topic
+	}
+	return ""
+}
+
+type TokenResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Token string `protobuf:"bytes,1,opt,name=token,proto3" json:"token,omitempty"`
+}
+
+func (x *TokenResponse) Reset() {
+	*x = TokenResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_streams_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TokenResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TokenResponse) ProtoMessage() {}
+
+func (x *TokenResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_streams_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 TokenResponse.ProtoReflect.Descriptor instead.
+func (*TokenResponse) Descriptor() ([]byte, []int) {
+	return file_proto_streams_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *TokenResponse) GetToken() string {
+	if x != nil {
+		return x.Token
+	}
+	return ""
+}
+
+var File_proto_streams_proto protoreflect.FileDescriptor
+
+var file_proto_streams_proto_rawDesc = []byte{
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+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_proto_streams_proto_rawDescOnce sync.Once
+	file_proto_streams_proto_rawDescData = file_proto_streams_proto_rawDesc
+)
+
+func file_proto_streams_proto_rawDescGZIP() []byte {
+	file_proto_streams_proto_rawDescOnce.Do(func() {
+		file_proto_streams_proto_rawDescData = protoimpl.X.CompressGZIP(file_proto_streams_proto_rawDescData)
+	})
+	return file_proto_streams_proto_rawDescData
+}
+
+var file_proto_streams_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
+var file_proto_streams_proto_goTypes = []interface{}{
+	(*PublishResponse)(nil),     // 0: streams.PublishResponse
+	(*Message)(nil),             // 1: streams.Message
+	(*SubscribeRequest)(nil),    // 2: streams.SubscribeRequest
+	(*TokenRequest)(nil),        // 3: streams.TokenRequest
+	(*TokenResponse)(nil),       // 4: streams.TokenResponse
+	(*timestamp.Timestamp)(nil), // 5: google.protobuf.Timestamp
+}
+var file_proto_streams_proto_depIdxs = []int32{
+	5, // 0: streams.Message.sent_at:type_name -> google.protobuf.Timestamp
+	1, // 1: streams.Streams.Publish:input_type -> streams.Message
+	2, // 2: streams.Streams.Subscribe:input_type -> streams.SubscribeRequest
+	3, // 3: streams.Streams.Token:input_type -> streams.TokenRequest
+	0, // 4: streams.Streams.Publish:output_type -> streams.PublishResponse
+	1, // 5: streams.Streams.Subscribe:output_type -> streams.Message
+	4, // 6: streams.Streams.Token:output_type -> streams.TokenResponse
+	4, // [4:7] is the sub-list for method output_type
+	1, // [1:4] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
+}
+
+func init() { file_proto_streams_proto_init() }
+func file_proto_streams_proto_init() {
+	if File_proto_streams_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_proto_streams_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PublishResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_streams_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_streams_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SubscribeRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_streams_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TokenRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_streams_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TokenResponse); 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_streams_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   5,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_proto_streams_proto_goTypes,
+		DependencyIndexes: file_proto_streams_proto_depIdxs,
+		MessageInfos:      file_proto_streams_proto_msgTypes,
+	}.Build()
+	File_proto_streams_proto = out.File
+	file_proto_streams_proto_rawDesc = nil
+	file_proto_streams_proto_goTypes = nil
+	file_proto_streams_proto_depIdxs = nil
+}

streams/proto/streams.pb.micro.go

@@ -0,0 +1,203 @@
+// Code generated by protoc-gen-micro. DO NOT EDIT.
+// source: proto/streams.proto
+
+package streams
+
+import (
+	fmt "fmt"
+	proto "github.com/golang/protobuf/proto"
+	_ "github.com/golang/protobuf/ptypes/timestamp"
+	math "math"
+)
+
+import (
+	context "context"
+	api "github.com/micro/micro/v3/service/api"
+	client "github.com/micro/micro/v3/service/client"
+	server "github.com/micro/micro/v3/service/server"
+)
+
+// 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 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
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ api.Endpoint
+var _ context.Context
+var _ client.Option
+var _ server.Option
+
+// Api Endpoints for Streams service
+
+func NewStreamsEndpoints() []*api.Endpoint {
+	return []*api.Endpoint{}
+}
+
+// Client API for Streams service
+
+type StreamsService interface {
+	Publish(ctx context.Context, in *Message, opts ...client.CallOption) (*PublishResponse, error)
+	Subscribe(ctx context.Context, in *SubscribeRequest, opts ...client.CallOption) (Streams_SubscribeService, error)
+	Token(ctx context.Context, in *TokenRequest, opts ...client.CallOption) (*TokenResponse, error)
+}
+
+type streamsService struct {
+	c    client.Client
+	name string
+}
+
+func NewStreamsService(name string, c client.Client) StreamsService {
+	return &streamsService{
+		c:    c,
+		name: name,
+	}
+}
+
+func (c *streamsService) Publish(ctx context.Context, in *Message, opts ...client.CallOption) (*PublishResponse, error) {
+	req := c.c.NewRequest(c.name, "Streams.Publish", in)
+	out := new(PublishResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *streamsService) Subscribe(ctx context.Context, in *SubscribeRequest, opts ...client.CallOption) (Streams_SubscribeService, error) {
+	req := c.c.NewRequest(c.name, "Streams.Subscribe", &SubscribeRequest{})
+	stream, err := c.c.Stream(ctx, req, opts...)
+	if err != nil {
+		return nil, err
+	}
+	if err := stream.Send(in); err != nil {
+		return nil, err
+	}
+	return &streamsServiceSubscribe{stream}, nil
+}
+
+type Streams_SubscribeService interface {
+	Context() context.Context
+	SendMsg(interface{}) error
+	RecvMsg(interface{}) error
+	Close() error
+	Recv() (*Message, error)
+}
+
+type streamsServiceSubscribe struct {
+	stream client.Stream
+}
+
+func (x *streamsServiceSubscribe) Close() error {
+	return x.stream.Close()
+}
+
+func (x *streamsServiceSubscribe) Context() context.Context {
+	return x.stream.Context()
+}
+
+func (x *streamsServiceSubscribe) SendMsg(m interface{}) error {
+	return x.stream.Send(m)
+}
+
+func (x *streamsServiceSubscribe) RecvMsg(m interface{}) error {
+	return x.stream.Recv(m)
+}
+
+func (x *streamsServiceSubscribe) Recv() (*Message, error) {
+	m := new(Message)
+	err := x.stream.Recv(m)
+	if err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+func (c *streamsService) Token(ctx context.Context, in *TokenRequest, opts ...client.CallOption) (*TokenResponse, error) {
+	req := c.c.NewRequest(c.name, "Streams.Token", in)
+	out := new(TokenResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for Streams service
+
+type StreamsHandler interface {
+	Publish(context.Context, *Message, *PublishResponse) error
+	Subscribe(context.Context, *SubscribeRequest, Streams_SubscribeStream) error
+	Token(context.Context, *TokenRequest, *TokenResponse) error
+}
+
+func RegisterStreamsHandler(s server.Server, hdlr StreamsHandler, opts ...server.HandlerOption) error {
+	type streams interface {
+		Publish(ctx context.Context, in *Message, out *PublishResponse) error
+		Subscribe(ctx context.Context, stream server.Stream) error
+		Token(ctx context.Context, in *TokenRequest, out *TokenResponse) error
+	}
+	type Streams struct {
+		streams
+	}
+	h := &streamsHandler{hdlr}
+	return s.Handle(s.NewHandler(&Streams{h}, opts...))
+}
+
+type streamsHandler struct {
+	StreamsHandler
+}
+
+func (h *streamsHandler) Publish(ctx context.Context, in *Message, out *PublishResponse) error {
+	return h.StreamsHandler.Publish(ctx, in, out)
+}
+
+func (h *streamsHandler) Subscribe(ctx context.Context, stream server.Stream) error {
+	m := new(SubscribeRequest)
+	if err := stream.Recv(m); err != nil {
+		return err
+	}
+	return h.StreamsHandler.Subscribe(ctx, m, &streamsSubscribeStream{stream})
+}
+
+type Streams_SubscribeStream interface {
+	Context() context.Context
+	SendMsg(interface{}) error
+	RecvMsg(interface{}) error
+	Close() error
+	Send(*Message) error
+}
+
+type streamsSubscribeStream struct {
+	stream server.Stream
+}
+
+func (x *streamsSubscribeStream) Close() error {
+	return x.stream.Close()
+}
+
+func (x *streamsSubscribeStream) Context() context.Context {
+	return x.stream.Context()
+}
+
+func (x *streamsSubscribeStream) SendMsg(m interface{}) error {
+	return x.stream.Send(m)
+}
+
+func (x *streamsSubscribeStream) RecvMsg(m interface{}) error {
+	return x.stream.Recv(m)
+}
+
+func (x *streamsSubscribeStream) Send(m *Message) error {
+	return x.stream.Send(m)
+}
+
+func (h *streamsHandler) Token(ctx context.Context, in *TokenRequest, out *TokenResponse) error {
+	return h.StreamsHandler.Token(ctx, in, out)
+}

streams/proto/streams.proto

@@ -0,0 +1,38 @@
+syntax = "proto3";
+
+package streams;
+option go_package = "github.com/micro/services/streams/proto;streams";
+import "google/protobuf/timestamp.proto";
+
+service Streams {
+	rpc Publish(Message) returns (PublishResponse) {}
+	rpc Subscribe(SubscribeRequest) returns (stream Message) {}
+	rpc Token(TokenRequest) returns (TokenResponse) {}
+}
+
+message PublishResponse {}
+
+message Message {
+	string topic = 1;
+	string message = 2;
+	google.protobuf.Timestamp sent_at = 3;
+}
+
+message SubscribeRequest {
+	// topic the user wishes to subscribe to, required
+	string topic = 1;
+	// tokens should be provided if the user is not proving an API key on the request (e.g. in cases
+	// where the stream is being consumed directly from the frontend via websockets). tokens can be
+	// generated using the Token RPC
+	string token = 2;
+}
+
+message TokenRequest {
+	// the topic the token should be restricted to, if no topic is required the token can be used to 
+	// subscribe to any topic
+	string topic = 1;
+}
+
+message TokenResponse {
+	string token = 1;
+}