Refactor data service: rename streaming files, update gRPC service methods, and enhance stream management

Makefile

@@ -1,14 +1,11 @@
-PROTOC_GEN_GO := protoc-gen-go
-PROTOC_GEN_GO_GRPC := protoc-gen-go-grpc
 PROTO_DIR := pkg/pb
-PROTO_FILE := $(PROTO_DIR)/data_service/data.proto
+PROTO_FILES := $(shell find $(PROTO_DIR) -name '*.proto')
-OUT_DIR := $(PROTO_DIR)
 
 .PHONY: proto
 proto:
 	@echo "Generating Go code from Protobuf..."
 	protoc \
-		--go_out=$(OUT_DIR) --go_opt=paths=source_relative \
+		--go_out=. --go_opt=paths=source_relative \
-		--go-grpc_out=$(OUT_DIR) --go-grpc_opt=paths=source_relative \
+		--go-grpc_out=. --go-grpc_opt=paths=source_relative \
-		$(PROTO_FILE)
+		$(PROTO_FILES)
 	@echo "Protobuf generation complete."

go.mod

@@ -1,17 +1,17 @@
 module gitlab.michelsen.id/phillmichelsen/tessera
 
-go 1.24.4
+go 1.24.5
 
 require (
 	github.com/google/uuid v1.6.0
 	github.com/gorilla/websocket v1.5.3
-	google.golang.org/grpc v1.73.0
+	google.golang.org/grpc v1.74.2
 	google.golang.org/protobuf v1.36.6
 )
 
 require (
-	golang.org/x/net v0.41.0 // indirect
+	golang.org/x/net v0.42.0 // indirect
-	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/sys v0.34.0 // indirect
-	golang.org/x/text v0.26.0 // indirect
+	golang.org/x/text v0.27.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250707201910-8d1bb00bc6a7 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250804133106-a7a43d27e69b // indirect
 )

go.sum

@@ -26,19 +26,29 @@ golang.org/x/net v0.38.0 h1:vRMAPTMaeGqVhG5QyLJHqNDwecKTomGeqbnfZyKlBI8=
 golang.org/x/net v0.38.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
 golang.org/x/net v0.41.0 h1:vBTly1HeNPEn3wtREYfy4GZ/NECgw2Cnl+nK6Nz3uvw=
 golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
+golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
+golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
 golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
 golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
+golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
 golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
 golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
 golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
+golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
+golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250324211829-b45e905df463 h1:e0AIkUUhxyBKh6ssZNrAMeqhA7RKUj42346d1y02i2g=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250324211829-b45e905df463/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250707201910-8d1bb00bc6a7 h1:pFyd6EwwL2TqFf8emdthzeX+gZE1ElRq3iM8pui4KBY=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250707201910-8d1bb00bc6a7/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250804133106-a7a43d27e69b h1:zPKJod4w6F1+nRGDI9ubnXYhU9NSWoFAijkHkUXeTK8=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250804133106-a7a43d27e69b/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
 google.golang.org/grpc v1.73.0 h1:VIWSmpI2MegBtTuFt5/JWy2oXxtjJ/e89Z70ImfD2ok=
 google.golang.org/grpc v1.73.0/go.mod h1:50sbHOUqWoCQGI8V2HQLJM0B+LMlIUjNSZmow7EVBQc=
+google.golang.org/grpc v1.74.2 h1:WoosgB65DlWVC9FqI82dGsZhWFNBSLjQ84bjROOpMu4=
+google.golang.org/grpc v1.74.2/go.mod h1:CtQ+BGjaAIXHs/5YS3i473GqwBBa1zGQNevxdeBEXrM=
 google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
 google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=

pkg/pb/data_service/data_service.pb.go

@@ -2,7 +2,7 @@
 // versions:
 // 	protoc-gen-go v1.36.6
 // 	protoc        v6.31.1
-// source: pkg/pb/data_service/data_service_streaming.proto
+// source: pkg/pb/data_service/data_service.proto
 
 package data_service
 
@@ -21,6 +21,7 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// Domain Models
 type Identifier struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	Provider      string                 `protobuf:"bytes,1,opt,name=provider,proto3" json:"provider,omitempty"` // e.g., "binance"
@@ -31,7 +32,7 @@ type Identifier struct {
 
 func (x *Identifier) Reset() {
 	*x = Identifier{}
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[0]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[0]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -43,7 +44,7 @@ func (x *Identifier) String() string {
 func (*Identifier) ProtoMessage() {}
 
 func (x *Identifier) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[0]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[0]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -56,7 +57,7 @@ func (x *Identifier) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Identifier.ProtoReflect.Descriptor instead.
 func (*Identifier) Descriptor() ([]byte, []int) {
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP(), []int{0}
+	return file_pkg_pb_data_service_data_service_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *Identifier) GetProvider() string {
@@ -83,7 +84,7 @@ type Message struct {
 
 func (x *Message) Reset() {
 	*x = Message{}
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[1]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[1]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -95,7 +96,7 @@ func (x *Message) String() string {
 func (*Message) ProtoMessage() {}
 
 func (x *Message) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[1]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[1]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -108,7 +109,7 @@ func (x *Message) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Message.ProtoReflect.Descriptor instead.
 func (*Message) Descriptor() ([]byte, []int) {
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP(), []int{1}
+	return file_pkg_pb_data_service_data_service_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *Message) GetIdentifier() *Identifier {
@@ -125,16 +126,16 @@ func (x *Message) GetPayload() string {
 	return ""
 }
 
+// Control Requests and Responses
 type StartStreamRequest struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
-	Identifiers   []*Identifier          `protobuf:"bytes,1,rep,name=identifiers,proto3" json:"identifiers,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
 
 func (x *StartStreamRequest) Reset() {
 	*x = StartStreamRequest{}
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[2]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[2]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -146,7 +147,7 @@ func (x *StartStreamRequest) String() string {
 func (*StartStreamRequest) ProtoMessage() {}
 
 func (x *StartStreamRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[2]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[2]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -159,14 +160,7 @@ func (x *StartStreamRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use StartStreamRequest.ProtoReflect.Descriptor instead.
 func (*StartStreamRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP(), []int{2}
+	return file_pkg_pb_data_service_data_service_proto_rawDescGZIP(), []int{2}
-}
-
-func (x *StartStreamRequest) GetIdentifiers() []*Identifier {
-	if x != nil {
-		return x.Identifiers
-	}
-	return nil
 }
 
 type StartStreamResponse struct {
@@ -178,7 +172,7 @@ type StartStreamResponse struct {
 
 func (x *StartStreamResponse) Reset() {
 	*x = StartStreamResponse{}
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[3]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[3]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -190,7 +184,7 @@ func (x *StartStreamResponse) String() string {
 func (*StartStreamResponse) ProtoMessage() {}
 
 func (x *StartStreamResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[3]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[3]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -203,7 +197,7 @@ func (x *StartStreamResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use StartStreamResponse.ProtoReflect.Descriptor instead.
 func (*StartStreamResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP(), []int{3}
+	return file_pkg_pb_data_service_data_service_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *StartStreamResponse) GetStreamUuid() string {
@@ -213,7 +207,7 @@ func (x *StartStreamResponse) GetStreamUuid() string {
 	return ""
 }
 
-type UpdateStreamRequest struct {
+type ConfigureStreamRequest struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	StreamUuid    string                 `protobuf:"bytes,1,opt,name=stream_uuid,json=streamUuid,proto3" json:"stream_uuid,omitempty"`
 	Identifiers   []*Identifier          `protobuf:"bytes,2,rep,name=identifiers,proto3" json:"identifiers,omitempty"`
@@ -221,21 +215,21 @@ type UpdateStreamRequest struct {
 	sizeCache     protoimpl.SizeCache
 }
 
-func (x *UpdateStreamRequest) Reset() {
+func (x *ConfigureStreamRequest) Reset() {
-	*x = UpdateStreamRequest{}
+	*x = ConfigureStreamRequest{}
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[4]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[4]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
 
-func (x *UpdateStreamRequest) String() string {
+func (x *ConfigureStreamRequest) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*UpdateStreamRequest) ProtoMessage() {}
+func (*ConfigureStreamRequest) ProtoMessage() {}
 
-func (x *UpdateStreamRequest) ProtoReflect() protoreflect.Message {
+func (x *ConfigureStreamRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[4]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[4]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -246,47 +240,46 @@ func (x *UpdateStreamRequest) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use UpdateStreamRequest.ProtoReflect.Descriptor instead.
+// Deprecated: Use ConfigureStreamRequest.ProtoReflect.Descriptor instead.
-func (*UpdateStreamRequest) Descriptor() ([]byte, []int) {
+func (*ConfigureStreamRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP(), []int{4}
+	return file_pkg_pb_data_service_data_service_proto_rawDescGZIP(), []int{4}
 }
 
-func (x *UpdateStreamRequest) GetStreamUuid() string {
+func (x *ConfigureStreamRequest) GetStreamUuid() string {
 	if x != nil {
 		return x.StreamUuid
 	}
 	return ""
 }
 
-func (x *UpdateStreamRequest) GetIdentifiers() []*Identifier {
+func (x *ConfigureStreamRequest) GetIdentifiers() []*Identifier {
 	if x != nil {
 		return x.Identifiers
 	}
 	return nil
 }
 
-type UpdateStreamResponse struct {
+type ConfigureStreamResponse struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
-	Success       bool                   `protobuf:"varint,1,opt,name=success,proto3" json:"success,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
 
-func (x *UpdateStreamResponse) Reset() {
+func (x *ConfigureStreamResponse) Reset() {
-	*x = UpdateStreamResponse{}
+	*x = ConfigureStreamResponse{}
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[5]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[5]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
 
-func (x *UpdateStreamResponse) String() string {
+func (x *ConfigureStreamResponse) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*UpdateStreamResponse) ProtoMessage() {}
+func (*ConfigureStreamResponse) ProtoMessage() {}
 
-func (x *UpdateStreamResponse) ProtoReflect() protoreflect.Message {
+func (x *ConfigureStreamResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[5]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[5]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -297,16 +290,9 @@ func (x *UpdateStreamResponse) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use UpdateStreamResponse.ProtoReflect.Descriptor instead.
+// Deprecated: Use ConfigureStreamResponse.ProtoReflect.Descriptor instead.
-func (*UpdateStreamResponse) Descriptor() ([]byte, []int) {
+func (*ConfigureStreamResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP(), []int{5}
+	return file_pkg_pb_data_service_data_service_proto_rawDescGZIP(), []int{5}
-}
-
-func (x *UpdateStreamResponse) GetSuccess() bool {
-	if x != nil {
-		return x.Success
-	}
-	return false
 }
 
 type StopStreamRequest struct {
@@ -318,7 +304,7 @@ type StopStreamRequest struct {
 
 func (x *StopStreamRequest) Reset() {
 	*x = StopStreamRequest{}
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[6]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[6]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -330,7 +316,7 @@ func (x *StopStreamRequest) String() string {
 func (*StopStreamRequest) ProtoMessage() {}
 
 func (x *StopStreamRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[6]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[6]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -343,7 +329,7 @@ func (x *StopStreamRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use StopStreamRequest.ProtoReflect.Descriptor instead.
 func (*StopStreamRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP(), []int{6}
+	return file_pkg_pb_data_service_data_service_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *StopStreamRequest) GetStreamUuid() string {
@@ -355,14 +341,13 @@ func (x *StopStreamRequest) GetStreamUuid() string {
 
 type StopStreamResponse struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
-	Success       bool                   `protobuf:"varint,1,opt,name=success,proto3" json:"success,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
 
 func (x *StopStreamResponse) Reset() {
 	*x = StopStreamResponse{}
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[7]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[7]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -374,7 +359,7 @@ func (x *StopStreamResponse) String() string {
 func (*StopStreamResponse) ProtoMessage() {}
 
 func (x *StopStreamResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[7]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[7]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -387,16 +372,10 @@ func (x *StopStreamResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use StopStreamResponse.ProtoReflect.Descriptor instead.
 func (*StopStreamResponse) Descriptor() ([]byte, []int) {
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP(), []int{7}
+	return file_pkg_pb_data_service_data_service_proto_rawDescGZIP(), []int{7}
-}
-
-func (x *StopStreamResponse) GetSuccess() bool {
-	if x != nil {
-		return x.Success
-	}
-	return false
 }
 
+// Stream Requests and Responses
 type ConnectStreamRequest struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	StreamUuid    string                 `protobuf:"bytes,1,opt,name=stream_uuid,json=streamUuid,proto3" json:"stream_uuid,omitempty"`
@@ -406,7 +385,7 @@ type ConnectStreamRequest struct {
 
 func (x *ConnectStreamRequest) Reset() {
 	*x = ConnectStreamRequest{}
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[8]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[8]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -418,7 +397,7 @@ func (x *ConnectStreamRequest) String() string {
 func (*ConnectStreamRequest) ProtoMessage() {}
 
 func (x *ConnectStreamRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_pb_data_service_data_service_streaming_proto_msgTypes[8]
+	mi := &file_pkg_pb_data_service_data_service_proto_msgTypes[8]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -431,7 +410,7 @@ func (x *ConnectStreamRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ConnectStreamRequest.ProtoReflect.Descriptor instead.
 func (*ConnectStreamRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP(), []int{8}
+	return file_pkg_pb_data_service_data_service_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *ConnectStreamRequest) GetStreamUuid() string {
@@ -441,11 +420,11 @@ func (x *ConnectStreamRequest) GetStreamUuid() string {
 	return ""
 }
 
-var File_pkg_pb_data_service_data_service_streaming_proto protoreflect.FileDescriptor
+var File_pkg_pb_data_service_data_service_proto protoreflect.FileDescriptor
 
-const file_pkg_pb_data_service_data_service_streaming_proto_rawDesc = "" +
+const file_pkg_pb_data_service_data_service_proto_rawDesc = "" +
 	"\n" +
-	"0pkg/pb/data_service/data_service_streaming.proto\x12\fdata_service\"B\n" +
+	"&pkg/pb/data_service/data_service.proto\x12\fdata_service\"B\n" +
 	"\n" +
 	"Identifier\x12\x1a\n" +
 	"\bprovider\x18\x01 \x01(\tR\bprovider\x12\x18\n" +
@@ -454,96 +433,93 @@ const file_pkg_pb_data_service_data_service_streaming_proto_rawDesc = "" +
 	"\n" +
 	"identifier\x18\x01 \x01(\v2\x18.data_service.IdentifierR\n" +
 	"identifier\x12\x18\n" +
-	"\apayload\x18\x02 \x01(\tR\apayload\"P\n" +
+	"\apayload\x18\x02 \x01(\tR\apayload\"\x14\n" +
-	"\x12StartStreamRequest\x12:\n" +
+	"\x12StartStreamRequest\"6\n" +
-	"\videntifiers\x18\x01 \x03(\v2\x18.data_service.IdentifierR\videntifiers\"6\n" +
 	"\x13StartStreamResponse\x12\x1f\n" +
 	"\vstream_uuid\x18\x01 \x01(\tR\n" +
-	"streamUuid\"r\n" +
+	"streamUuid\"u\n" +
-	"\x13UpdateStreamRequest\x12\x1f\n" +
+	"\x16ConfigureStreamRequest\x12\x1f\n" +
 	"\vstream_uuid\x18\x01 \x01(\tR\n" +
 	"streamUuid\x12:\n" +
-	"\videntifiers\x18\x02 \x03(\v2\x18.data_service.IdentifierR\videntifiers\"0\n" +
+	"\videntifiers\x18\x02 \x03(\v2\x18.data_service.IdentifierR\videntifiers\"\x19\n" +
-	"\x14UpdateStreamResponse\x12\x18\n" +
+	"\x17ConfigureStreamResponse\"4\n" +
-	"\asuccess\x18\x01 \x01(\bR\asuccess\"4\n" +
 	"\x11StopStreamRequest\x12\x1f\n" +
 	"\vstream_uuid\x18\x01 \x01(\tR\n" +
-	"streamUuid\".\n" +
+	"streamUuid\"\x14\n" +
-	"\x12StopStreamResponse\x12\x18\n" +
+	"\x12StopStreamResponse\"7\n" +
-	"\asuccess\x18\x01 \x01(\bR\asuccess\"7\n" +
 	"\x14ConnectStreamRequest\x12\x1f\n" +
 	"\vstream_uuid\x18\x01 \x01(\tR\n" +
-	"streamUuid2\xe0\x02\n" +
+	"streamUuid2\x99\x02\n" +
-	"\x14DataServiceStreaming\x12R\n" +
+	"\x12DataServiceControl\x12R\n" +
-	"\vStartStream\x12 .data_service.StartStreamRequest\x1a!.data_service.StartStreamResponse\x12U\n" +
+	"\vStartStream\x12 .data_service.StartStreamRequest\x1a!.data_service.StartStreamResponse\x12O\n" +
-	"\fUpdateStream\x12!.data_service.UpdateStreamRequest\x1a\".data_service.UpdateStreamResponse\x12O\n" +
 	"\n" +
-	"StopStream\x12\x1f.data_service.StopStreamRequest\x1a .data_service.StopStreamResponse\x12L\n" +
+	"StopStream\x12\x1f.data_service.StopStreamRequest\x1a .data_service.StopStreamResponse\x12^\n" +
+	"\x0fConfigureStream\x12$.data_service.ConfigureStreamRequest\x1a%.data_service.ConfigureStreamResponse2d\n" +
+	"\x14DataServiceStreaming\x12L\n" +
 	"\rConnectStream\x12\".data_service.ConnectStreamRequest\x1a\x15.data_service.Message0\x01BMZKgitlab.michelsen.id/phillmichelsen/tessera/pkg/pb/data_service;data_serviceb\x06proto3"
 
 var (
-	file_pkg_pb_data_service_data_service_streaming_proto_rawDescOnce sync.Once
+	file_pkg_pb_data_service_data_service_proto_rawDescOnce sync.Once
-	file_pkg_pb_data_service_data_service_streaming_proto_rawDescData []byte
+	file_pkg_pb_data_service_data_service_proto_rawDescData []byte
 )
 
-func file_pkg_pb_data_service_data_service_streaming_proto_rawDescGZIP() []byte {
+func file_pkg_pb_data_service_data_service_proto_rawDescGZIP() []byte {
-	file_pkg_pb_data_service_data_service_streaming_proto_rawDescOnce.Do(func() {
+	file_pkg_pb_data_service_data_service_proto_rawDescOnce.Do(func() {
-		file_pkg_pb_data_service_data_service_streaming_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_pkg_pb_data_service_data_service_streaming_proto_rawDesc), len(file_pkg_pb_data_service_data_service_streaming_proto_rawDesc)))
+		file_pkg_pb_data_service_data_service_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_pkg_pb_data_service_data_service_proto_rawDesc), len(file_pkg_pb_data_service_data_service_proto_rawDesc)))
 	})
-	return file_pkg_pb_data_service_data_service_streaming_proto_rawDescData
+	return file_pkg_pb_data_service_data_service_proto_rawDescData
 }
 
-var file_pkg_pb_data_service_data_service_streaming_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
+var file_pkg_pb_data_service_data_service_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
-var file_pkg_pb_data_service_data_service_streaming_proto_goTypes = []any{
+var file_pkg_pb_data_service_data_service_proto_goTypes = []any{
 	(*Identifier)(nil),              // 0: data_service.Identifier
 	(*Message)(nil),                 // 1: data_service.Message
 	(*StartStreamRequest)(nil),      // 2: data_service.StartStreamRequest
 	(*StartStreamResponse)(nil),     // 3: data_service.StartStreamResponse
-	(*UpdateStreamRequest)(nil),  // 4: data_service.UpdateStreamRequest
+	(*ConfigureStreamRequest)(nil),  // 4: data_service.ConfigureStreamRequest
-	(*UpdateStreamResponse)(nil), // 5: data_service.UpdateStreamResponse
+	(*ConfigureStreamResponse)(nil), // 5: data_service.ConfigureStreamResponse
 	(*StopStreamRequest)(nil),       // 6: data_service.StopStreamRequest
 	(*StopStreamResponse)(nil),      // 7: data_service.StopStreamResponse
 	(*ConnectStreamRequest)(nil),    // 8: data_service.ConnectStreamRequest
 }
-var file_pkg_pb_data_service_data_service_streaming_proto_depIdxs = []int32{
+var file_pkg_pb_data_service_data_service_proto_depIdxs = []int32{
 	0, // 0: data_service.Message.identifier:type_name -> data_service.Identifier
-	0, // 1: data_service.StartStreamRequest.identifiers:type_name -> data_service.Identifier
+	0, // 1: data_service.ConfigureStreamRequest.identifiers:type_name -> data_service.Identifier
-	0, // 2: data_service.UpdateStreamRequest.identifiers:type_name -> data_service.Identifier
+	2, // 2: data_service.DataServiceControl.StartStream:input_type -> data_service.StartStreamRequest
-	2, // 3: data_service.DataServiceStreaming.StartStream:input_type -> data_service.StartStreamRequest
+	6, // 3: data_service.DataServiceControl.StopStream:input_type -> data_service.StopStreamRequest
-	4, // 4: data_service.DataServiceStreaming.UpdateStream:input_type -> data_service.UpdateStreamRequest
+	4, // 4: data_service.DataServiceControl.ConfigureStream:input_type -> data_service.ConfigureStreamRequest
-	6, // 5: data_service.DataServiceStreaming.StopStream:input_type -> data_service.StopStreamRequest
+	8, // 5: data_service.DataServiceStreaming.ConnectStream:input_type -> data_service.ConnectStreamRequest
-	8, // 6: data_service.DataServiceStreaming.ConnectStream:input_type -> data_service.ConnectStreamRequest
+	3, // 6: data_service.DataServiceControl.StartStream:output_type -> data_service.StartStreamResponse
-	3, // 7: data_service.DataServiceStreaming.StartStream:output_type -> data_service.StartStreamResponse
+	7, // 7: data_service.DataServiceControl.StopStream:output_type -> data_service.StopStreamResponse
-	5, // 8: data_service.DataServiceStreaming.UpdateStream:output_type -> data_service.UpdateStreamResponse
+	5, // 8: data_service.DataServiceControl.ConfigureStream:output_type -> data_service.ConfigureStreamResponse
-	7, // 9: data_service.DataServiceStreaming.StopStream:output_type -> data_service.StopStreamResponse
+	1, // 9: data_service.DataServiceStreaming.ConnectStream:output_type -> data_service.Message
-	1, // 10: data_service.DataServiceStreaming.ConnectStream:output_type -> data_service.Message
+	6, // [6:10] is the sub-list for method output_type
-	7, // [7:11] is the sub-list for method output_type
+	2, // [2:6] is the sub-list for method input_type
-	3, // [3:7] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
-	3, // [3:3] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
-	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
-	0, // [0:3] is the sub-list for field type_name
 }
 
-func init() { file_pkg_pb_data_service_data_service_streaming_proto_init() }
+func init() { file_pkg_pb_data_service_data_service_proto_init() }
-func file_pkg_pb_data_service_data_service_streaming_proto_init() {
+func file_pkg_pb_data_service_data_service_proto_init() {
-	if File_pkg_pb_data_service_data_service_streaming_proto != nil {
+	if File_pkg_pb_data_service_data_service_proto != nil {
 		return
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: unsafe.Slice(unsafe.StringData(file_pkg_pb_data_service_data_service_streaming_proto_rawDesc), len(file_pkg_pb_data_service_data_service_streaming_proto_rawDesc)),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_pkg_pb_data_service_data_service_proto_rawDesc), len(file_pkg_pb_data_service_data_service_proto_rawDesc)),
 			NumEnums:      0,
 			NumMessages:   9,
 			NumExtensions: 0,
-			NumServices:   1,
+			NumServices:   2,
 		},
-		GoTypes:           file_pkg_pb_data_service_data_service_streaming_proto_goTypes,
+		GoTypes:           file_pkg_pb_data_service_data_service_proto_goTypes,
-		DependencyIndexes: file_pkg_pb_data_service_data_service_streaming_proto_depIdxs,
+		DependencyIndexes: file_pkg_pb_data_service_data_service_proto_depIdxs,
-		MessageInfos:      file_pkg_pb_data_service_data_service_streaming_proto_msgTypes,
+		MessageInfos:      file_pkg_pb_data_service_data_service_proto_msgTypes,
 	}.Build()
-	File_pkg_pb_data_service_data_service_streaming_proto = out.File
+	File_pkg_pb_data_service_data_service_proto = out.File
-	file_pkg_pb_data_service_data_service_streaming_proto_goTypes = nil
+	file_pkg_pb_data_service_data_service_proto_goTypes = nil
-	file_pkg_pb_data_service_data_service_streaming_proto_depIdxs = nil
+	file_pkg_pb_data_service_data_service_proto_depIdxs = nil
 }

pkg/pb/data_service/data_service.proto

@@ -4,14 +4,17 @@ package data_service;
 
 option go_package = "gitlab.michelsen.id/phillmichelsen/tessera/pkg/pb/data_service;data_service";
 
-service DataServiceStreaming {
+service DataServiceControl {
   rpc StartStream(StartStreamRequest) returns (StartStreamResponse);
-  rpc UpdateStream(UpdateStreamRequest) returns (UpdateStreamResponse);
   rpc StopStream(StopStreamRequest) returns (StopStreamResponse);
+  rpc ConfigureStream(ConfigureStreamRequest) returns (ConfigureStreamResponse);
+}
 
+service DataServiceStreaming {
   rpc ConnectStream(ConnectStreamRequest) returns (stream Message);
 }
 
+// Domain Models
 message Identifier {
   string provider = 1; // e.g., "binance"
   string subject = 2; // e.g., "BTCUSDT"
@@ -22,32 +25,27 @@ message Message {
   string payload = 2; // JSON-encoded data
 }
 
-message StartStreamRequest {
+// Control Requests and Responses
-  repeated Identifier identifiers = 1;
+message StartStreamRequest {}
-}
 
 message StartStreamResponse {
   string stream_uuid = 1;
 }
 
-message UpdateStreamRequest {
+message ConfigureStreamRequest {
   string stream_uuid = 1;
   repeated Identifier identifiers = 2;
 }
 
-message UpdateStreamResponse {
+message ConfigureStreamResponse {}
-  bool success = 1;
-}
 
 message StopStreamRequest {
   string stream_uuid = 1;
 }
 
-message StopStreamResponse {
+message StopStreamResponse {}
-  bool success = 1;
-}
-
 
+// Stream Requests and Responses
 message ConnectStreamRequest {
   string stream_uuid = 1;
 }

pkg/pb/data_service/data_service_grpc.pb.go

@@ -2,7 +2,7 @@
 // versions:
 // - protoc-gen-go-grpc v1.5.1
 // - protoc             v6.31.1
-// source: pkg/pb/data_service/data_service_streaming.proto
+// source: pkg/pb/data_service/data_service.proto
 
 package data_service
 
@@ -19,9 +19,184 @@ import (
 const _ = grpc.SupportPackageIsVersion9
 
 const (
-	DataServiceStreaming_StartStream_FullMethodName   = "/data_service.DataServiceStreaming/StartStream"
+	DataServiceControl_StartStream_FullMethodName     = "/data_service.DataServiceControl/StartStream"
-	DataServiceStreaming_UpdateStream_FullMethodName  = "/data_service.DataServiceStreaming/UpdateStream"
+	DataServiceControl_StopStream_FullMethodName      = "/data_service.DataServiceControl/StopStream"
-	DataServiceStreaming_StopStream_FullMethodName    = "/data_service.DataServiceStreaming/StopStream"
+	DataServiceControl_ConfigureStream_FullMethodName = "/data_service.DataServiceControl/ConfigureStream"
+)
+
+// DataServiceControlClient is the client API for DataServiceControl 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 DataServiceControlClient interface {
+	StartStream(ctx context.Context, in *StartStreamRequest, opts ...grpc.CallOption) (*StartStreamResponse, error)
+	StopStream(ctx context.Context, in *StopStreamRequest, opts ...grpc.CallOption) (*StopStreamResponse, error)
+	ConfigureStream(ctx context.Context, in *ConfigureStreamRequest, opts ...grpc.CallOption) (*ConfigureStreamResponse, error)
+}
+
+type dataServiceControlClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewDataServiceControlClient(cc grpc.ClientConnInterface) DataServiceControlClient {
+	return &dataServiceControlClient{cc}
+}
+
+func (c *dataServiceControlClient) StartStream(ctx context.Context, in *StartStreamRequest, opts ...grpc.CallOption) (*StartStreamResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(StartStreamResponse)
+	err := c.cc.Invoke(ctx, DataServiceControl_StartStream_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *dataServiceControlClient) StopStream(ctx context.Context, in *StopStreamRequest, opts ...grpc.CallOption) (*StopStreamResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(StopStreamResponse)
+	err := c.cc.Invoke(ctx, DataServiceControl_StopStream_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *dataServiceControlClient) ConfigureStream(ctx context.Context, in *ConfigureStreamRequest, opts ...grpc.CallOption) (*ConfigureStreamResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ConfigureStreamResponse)
+	err := c.cc.Invoke(ctx, DataServiceControl_ConfigureStream_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// DataServiceControlServer is the server API for DataServiceControl service.
+// All implementations must embed UnimplementedDataServiceControlServer
+// for forward compatibility.
+type DataServiceControlServer interface {
+	StartStream(context.Context, *StartStreamRequest) (*StartStreamResponse, error)
+	StopStream(context.Context, *StopStreamRequest) (*StopStreamResponse, error)
+	ConfigureStream(context.Context, *ConfigureStreamRequest) (*ConfigureStreamResponse, error)
+	mustEmbedUnimplementedDataServiceControlServer()
+}
+
+// UnimplementedDataServiceControlServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedDataServiceControlServer struct{}
+
+func (UnimplementedDataServiceControlServer) StartStream(context.Context, *StartStreamRequest) (*StartStreamResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method StartStream not implemented")
+}
+func (UnimplementedDataServiceControlServer) StopStream(context.Context, *StopStreamRequest) (*StopStreamResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method StopStream not implemented")
+}
+func (UnimplementedDataServiceControlServer) ConfigureStream(context.Context, *ConfigureStreamRequest) (*ConfigureStreamResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ConfigureStream not implemented")
+}
+func (UnimplementedDataServiceControlServer) mustEmbedUnimplementedDataServiceControlServer() {}
+func (UnimplementedDataServiceControlServer) testEmbeddedByValue()                            {}
+
+// UnsafeDataServiceControlServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to DataServiceControlServer will
+// result in compilation errors.
+type UnsafeDataServiceControlServer interface {
+	mustEmbedUnimplementedDataServiceControlServer()
+}
+
+func RegisterDataServiceControlServer(s grpc.ServiceRegistrar, srv DataServiceControlServer) {
+	// If the following call pancis, it indicates UnimplementedDataServiceControlServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&DataServiceControl_ServiceDesc, srv)
+}
+
+func _DataServiceControl_StartStream_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(StartStreamRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DataServiceControlServer).StartStream(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: DataServiceControl_StartStream_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DataServiceControlServer).StartStream(ctx, req.(*StartStreamRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _DataServiceControl_StopStream_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(StopStreamRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DataServiceControlServer).StopStream(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: DataServiceControl_StopStream_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DataServiceControlServer).StopStream(ctx, req.(*StopStreamRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _DataServiceControl_ConfigureStream_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ConfigureStreamRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DataServiceControlServer).ConfigureStream(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: DataServiceControl_ConfigureStream_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DataServiceControlServer).ConfigureStream(ctx, req.(*ConfigureStreamRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// DataServiceControl_ServiceDesc is the grpc.ServiceDesc for DataServiceControl service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var DataServiceControl_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "data_service.DataServiceControl",
+	HandlerType: (*DataServiceControlServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "StartStream",
+			Handler:    _DataServiceControl_StartStream_Handler,
+		},
+		{
+			MethodName: "StopStream",
+			Handler:    _DataServiceControl_StopStream_Handler,
+		},
+		{
+			MethodName: "ConfigureStream",
+			Handler:    _DataServiceControl_ConfigureStream_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "pkg/pb/data_service/data_service.proto",
+}
+
+const (
 	DataServiceStreaming_ConnectStream_FullMethodName = "/data_service.DataServiceStreaming/ConnectStream"
 )
 
@@ -29,9 +204,6 @@ const (
 //
 // 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 DataServiceStreamingClient interface {
-	StartStream(ctx context.Context, in *StartStreamRequest, opts ...grpc.CallOption) (*StartStreamResponse, error)
-	UpdateStream(ctx context.Context, in *UpdateStreamRequest, opts ...grpc.CallOption) (*UpdateStreamResponse, error)
-	StopStream(ctx context.Context, in *StopStreamRequest, opts ...grpc.CallOption) (*StopStreamResponse, error)
 	ConnectStream(ctx context.Context, in *ConnectStreamRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[Message], error)
 }
 
@@ -43,36 +215,6 @@ func NewDataServiceStreamingClient(cc grpc.ClientConnInterface) DataServiceStrea
 	return &dataServiceStreamingClient{cc}
 }
 
-func (c *dataServiceStreamingClient) StartStream(ctx context.Context, in *StartStreamRequest, opts ...grpc.CallOption) (*StartStreamResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(StartStreamResponse)
-	err := c.cc.Invoke(ctx, DataServiceStreaming_StartStream_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *dataServiceStreamingClient) UpdateStream(ctx context.Context, in *UpdateStreamRequest, opts ...grpc.CallOption) (*UpdateStreamResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(UpdateStreamResponse)
-	err := c.cc.Invoke(ctx, DataServiceStreaming_UpdateStream_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *dataServiceStreamingClient) StopStream(ctx context.Context, in *StopStreamRequest, opts ...grpc.CallOption) (*StopStreamResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(StopStreamResponse)
-	err := c.cc.Invoke(ctx, DataServiceStreaming_StopStream_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 func (c *dataServiceStreamingClient) ConnectStream(ctx context.Context, in *ConnectStreamRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[Message], error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	stream, err := c.cc.NewStream(ctx, &DataServiceStreaming_ServiceDesc.Streams[0], DataServiceStreaming_ConnectStream_FullMethodName, cOpts...)
@@ -96,9 +238,6 @@ type DataServiceStreaming_ConnectStreamClient = grpc.ServerStreamingClient[Messa
 // All implementations must embed UnimplementedDataServiceStreamingServer
 // for forward compatibility.
 type DataServiceStreamingServer interface {
-	StartStream(context.Context, *StartStreamRequest) (*StartStreamResponse, error)
-	UpdateStream(context.Context, *UpdateStreamRequest) (*UpdateStreamResponse, error)
-	StopStream(context.Context, *StopStreamRequest) (*StopStreamResponse, error)
 	ConnectStream(*ConnectStreamRequest, grpc.ServerStreamingServer[Message]) error
 	mustEmbedUnimplementedDataServiceStreamingServer()
 }
@@ -110,15 +249,6 @@ type DataServiceStreamingServer interface {
 // pointer dereference when methods are called.
 type UnimplementedDataServiceStreamingServer struct{}
 
-func (UnimplementedDataServiceStreamingServer) StartStream(context.Context, *StartStreamRequest) (*StartStreamResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method StartStream not implemented")
-}
-func (UnimplementedDataServiceStreamingServer) UpdateStream(context.Context, *UpdateStreamRequest) (*UpdateStreamResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method UpdateStream not implemented")
-}
-func (UnimplementedDataServiceStreamingServer) StopStream(context.Context, *StopStreamRequest) (*StopStreamResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method StopStream not implemented")
-}
 func (UnimplementedDataServiceStreamingServer) ConnectStream(*ConnectStreamRequest, grpc.ServerStreamingServer[Message]) error {
 	return status.Errorf(codes.Unimplemented, "method ConnectStream not implemented")
 }
@@ -143,60 +273,6 @@ func RegisterDataServiceStreamingServer(s grpc.ServiceRegistrar, srv DataService
 	s.RegisterService(&DataServiceStreaming_ServiceDesc, srv)
 }
 
-func _DataServiceStreaming_StartStream_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(StartStreamRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(DataServiceStreamingServer).StartStream(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: DataServiceStreaming_StartStream_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(DataServiceStreamingServer).StartStream(ctx, req.(*StartStreamRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _DataServiceStreaming_UpdateStream_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(UpdateStreamRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(DataServiceStreamingServer).UpdateStream(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: DataServiceStreaming_UpdateStream_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(DataServiceStreamingServer).UpdateStream(ctx, req.(*UpdateStreamRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _DataServiceStreaming_StopStream_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(StopStreamRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(DataServiceStreamingServer).StopStream(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: DataServiceStreaming_StopStream_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(DataServiceStreamingServer).StopStream(ctx, req.(*StopStreamRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 func _DataServiceStreaming_ConnectStream_Handler(srv interface{}, stream grpc.ServerStream) error {
 	m := new(ConnectStreamRequest)
 	if err := stream.RecvMsg(m); err != nil {
@@ -214,20 +290,7 @@ type DataServiceStreaming_ConnectStreamServer = grpc.ServerStreamingServer[Messa
 var DataServiceStreaming_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "data_service.DataServiceStreaming",
 	HandlerType: (*DataServiceStreamingServer)(nil),
-	Methods: []grpc.MethodDesc{
+	Methods:     []grpc.MethodDesc{},
-		{
-			MethodName: "StartStream",
-			Handler:    _DataServiceStreaming_StartStream_Handler,
-		},
-		{
-			MethodName: "UpdateStream",
-			Handler:    _DataServiceStreaming_UpdateStream_Handler,
-		},
-		{
-			MethodName: "StopStream",
-			Handler:    _DataServiceStreaming_StopStream_Handler,
-		},
-	},
 	Streams: []grpc.StreamDesc{
 		{
 			StreamName:    "ConnectStream",
@@ -235,5 +298,5 @@ var DataServiceStreaming_ServiceDesc = grpc.ServiceDesc{
 			ServerStreams: true,
 		},
 	},
-	Metadata: "pkg/pb/data_service/data_service_streaming.proto",
+	Metadata: "pkg/pb/data_service/data_service.proto",
 }

services/data_service/cmd/main.go

@@ -1,6 +1,10 @@
 package main
 
 import (
+	"fmt"
+	"log"
+	"net"
+
 	pb "gitlab.michelsen.id/phillmichelsen/tessera/pkg/pb/data_service"
 	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/manager"
 	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/provider/binance"
@@ -8,41 +12,55 @@ import (
 	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/server"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/reflection"
-	"log"
-	"net"
 )
 
 func main() {
+	fmt.Println("Starting Data Service...")
 	// Setup
 	r := router.NewRouter()
 	m := manager.NewManager(r)
 	binanceFutures := binance.NewFuturesWebsocket()
 	m.AddProvider("binance_futures_websocket", binanceFutures)
 
-	// gRPC Server
+	// gRPC Control Server
-	grpcServer := grpc.NewServer()
+	grpcControlServer := grpc.NewServer()
 	go func() {
-		pb.RegisterDataServiceStreamingServer(grpcServer, server.NewGRPCStreamingServer(m))
+		pb.RegisterDataServiceControlServer(grpcControlServer, server.NewGRPCControlServer(m))
-		reflection.Register(grpcServer)
+		reflection.Register(grpcControlServer)
 		grpcLis, err := net.Listen("tcp", ":50051")
+		if err != nil {
+			log.Fatalf("Failed to listen for gRPC control: %v", err)
+		}
+		log.Println("gRPC control server listening on :50051")
+		if err := grpcControlServer.Serve(grpcLis); err != nil {
+			log.Fatalf("Failed to serve gRPC control: %v", err)
+		}
+	}()
+
+	// gRPC Streaming Server
+	grpcStreamingServer := grpc.NewServer()
+	go func() {
+		pb.RegisterDataServiceStreamingServer(grpcStreamingServer, server.NewGRPCStreamingServer(m))
+		reflection.Register(grpcStreamingServer)
+		grpcLis, err := net.Listen("tcp", ":50052")
 		if err != nil {
 			log.Fatalf("Failed to listen for gRPC: %v", err)
 		}
-		log.Println("gRPC server listening on :50051")
+		log.Println("gRPC streaming server listening on :50052")
-		if err := grpcServer.Serve(grpcLis); err != nil {
+		if err := grpcStreamingServer.Serve(grpcLis); err != nil {
 			log.Fatalf("Failed to serve gRPC: %v", err)
 		}
 	}()
 
-	// Socket Server
+	// Socket Streaming Server
-	socketServer := server.NewSocketStreamingServer(m)
+	socketStreamingServer := server.NewSocketStreamingServer(m)
 	go func() {
 		socketLis, err := net.Listen("tcp", ":6000")
 		if err != nil {
 			log.Fatalf("Failed to listen for socket: %v", err)
 		}
 		log.Println("Socket server listening on :6000")
-		if err := socketServer.Serve(socketLis); err != nil {
+		if err := socketStreamingServer.Serve(socketLis); err != nil {
 			log.Fatalf("Socket server error: %v", err)
 		}
 	}()

services/data_service/internal/manager/manager.go

@@ -2,12 +2,13 @@ package manager
 
 import (
 	"fmt"
+	"sync"
+	"time"
+
 	"github.com/google/uuid"
 	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/domain"
 	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/provider"
 	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/router"
-	"sync"
-	"time"
 )
 
 type Manager struct {
@@ -38,59 +39,118 @@ func NewManager(router *router.Router) *Manager {
 	}
 }
 
-func (m *Manager) StartStream(ids []domain.Identifier) (uuid.UUID, error) {
+func (m *Manager) StartStream() (uuid.UUID, error) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
 
-	// Validate Identifiers, prevents unnecessary calls to providers
-	for _, id := range ids {
-		if id.Provider == "" || id.Subject == "" {
-			return uuid.Nil, fmt.Errorf("invalid identifier: %v", id)
-		}
-		if _, ok := m.providers[id.Provider]; !ok {
-			return uuid.Nil, fmt.Errorf("unknown provider: %s", id.Provider)
-		}
-		if !m.providers[id.Provider].IsValidSubject(id.Subject, false) {
-			return uuid.Nil, fmt.Errorf("invalid subject for provider %s: %s", id.Provider, id.Subject)
-		}
-	}
-
-	// Provision provider streams
-	for _, id := range ids {
-		if _, ok := m.providerStreams[id]; ok {
-			continue // Skip if requested stream is already being provided
-		}
-
-		ch := make(chan domain.Message, 64)
-		if err := m.providers[id.Provider].RequestStream(id.Subject, ch); err != nil {
-			return uuid.Nil, fmt.Errorf("provision %v: %w", id, err)
-		}
-		m.providerStreams[id] = ch
-
-		// Start routine to route the provider stream to the router's input channel
-		go func(ch chan domain.Message) {
-			for msg := range ch {
-				m.router.IncomingChannel() <- msg
-			}
-		}(ch)
-	}
-
 	streamID := uuid.New()
-
 	m.clientStreams[streamID] = &ClientStream{
 		UUID:        streamID,
-		Identifiers: ids,
+		Identifiers: nil, // start empty
-		OutChannel:  nil, // Initially nil, will be set when connected
+		OutChannel:  nil, // not yet connected
 		Timer: time.AfterFunc(1*time.Minute, func() {
 			fmt.Printf("stream %s expired due to inactivity\n", streamID)
-			m.StopStream(streamID)
+			err := m.StopStream(streamID)
+			if err != nil {
+				fmt.Printf("failed to stop stream after timeout: %v\n", err)
+			}
 		}),
 	}
 
 	return streamID, nil
 }
 
-func (m *Manager) StopStream(streamID uuid.UUID) {
+func (m *Manager) ConfigureStream(streamID uuid.UUID, newIds []domain.Identifier) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	stream, ok := m.clientStreams[streamID]
+	if !ok {
+		return fmt.Errorf("stream not found: %s", streamID)
+	}
+
+	// Validate new identifiers.
+	for _, id := range newIds {
+		if id.Provider == "" || id.Subject == "" {
+			return fmt.Errorf("empty identifier: %v", id)
+		}
+		prov, exists := m.providers[id.Provider]
+		if !exists {
+			return fmt.Errorf("unknown provider: %s", id.Provider)
+		}
+		if !prov.IsValidSubject(id.Subject, false) {
+			return fmt.Errorf("invalid subject %q for provider %s", id.Subject, id.Provider)
+		}
+	}
+
+	// Generate old and new sets of identifiers
+	oldSet := make(map[domain.Identifier]struct{}, len(stream.Identifiers))
+	for _, id := range stream.Identifiers {
+		oldSet[id] = struct{}{}
+	}
+	newSet := make(map[domain.Identifier]struct{}, len(newIds))
+	for _, id := range newIds {
+		newSet[id] = struct{}{}
+	}
+
+	// Add identifiers that are in newIds but not in oldSet
+	for _, id := range newIds {
+		if _, seen := oldSet[id]; !seen {
+			// Provision the stream from the provider if needed
+			if _, ok := m.providerStreams[id]; !ok {
+				ch := make(chan domain.Message, 64)
+				if err := m.providers[id.Provider].RequestStream(id.Subject, ch); err != nil {
+					return fmt.Errorf("provision %v: %w", id, err)
+				}
+				m.providerStreams[id] = ch
+
+				incomingChannel := m.router.IncomingChannel()
+				go func(c chan domain.Message) {
+					for msg := range c {
+						incomingChannel <- msg
+					}
+				}(ch)
+			}
+
+			// Register the new identifier with the router, only if there's an active output channel (meaning the stream is connected)
+			if stream.OutChannel != nil {
+				m.router.RegisterRoute(id, stream.OutChannel)
+			}
+		}
+	}
+
+	// Remove identifiers that are in oldSet but not in newSet
+	for _, oldId := range stream.Identifiers {
+		if _, keep := newSet[oldId]; !keep {
+			// Deregister the identifier from the router, only if there's an active output channel (meaning the stream is connected)
+			if stream.OutChannel != nil {
+				m.router.DeregisterRoute(oldId, stream.OutChannel)
+			}
+		}
+	}
+
+	// Set the new identifiers for the stream
+	stream.Identifiers = newIds
+
+	// Clean up provider streams that are no longer used
+	used := make(map[domain.Identifier]bool)
+	for _, cs := range m.clientStreams {
+		for _, id := range cs.Identifiers {
+			used[id] = true
+		}
+	}
+	for id, ch := range m.providerStreams {
+		if !used[id] {
+			m.providers[id.Provider].CancelStream(id.Subject)
+			close(ch)
+			delete(m.providerStreams, id)
+		}
+	}
+
+	return nil
+}
+
+func (m *Manager) StopStream(streamID uuid.UUID) error {
 	m.DisconnectStream(streamID)
 
 	m.mu.Lock()
@@ -98,7 +158,7 @@ func (m *Manager) StopStream(streamID uuid.UUID) {
 
 	stream, ok := m.clientStreams[streamID]
 	if !ok {
-		return // Stream not found
+		return fmt.Errorf("stream not found: %s", streamID)
 	}
 
 	stream.Timer.Stop()
@@ -121,6 +181,8 @@ func (m *Manager) StopStream(streamID uuid.UUID) {
 			delete(m.providerStreams, id)
 		}
 	}
+
+	return nil
 }
 
 func (m *Manager) ConnectStream(streamID uuid.UUID) (<-chan domain.Message, error) {
@@ -172,7 +234,10 @@ func (m *Manager) DisconnectStream(streamID uuid.UUID) {
 	// Set up the expiry timer
 	stream.Timer = time.AfterFunc(1*time.Minute, func() {
 		fmt.Printf("stream %s expired due to inactivity\n", streamID)
-		m.StopStream(streamID)
+		err := m.StopStream(streamID)
+		if err != nil {
+			fmt.Printf("failed to stop stream after disconnect: %v\n", err)
+		}
 	})
 }
 

services/data_service/internal/provider/binance/futures_websocket.go

@@ -99,7 +99,7 @@ func (b *FuturesWebsocket) IsStreamActive(subject string) bool {
 	return ok
 }
 
-func (b *FuturesWebsocket) Fetch(subject string) (domain.Message, error) {
+func (b *FuturesWebsocket) Fetch(_ string) (domain.Message, error) {
 	return domain.Message{}, fmt.Errorf("not supported: websocket provider does not implement fetch")
 }
 

services/data_service/internal/router/router.go

@@ -2,9 +2,9 @@ package router
 
 import (
 	"fmt"
-	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/domain"
 	"sync"
-	"time"
+
+	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/domain"
 )
 
 type Router struct {
@@ -15,7 +15,7 @@ type Router struct {
 
 func NewRouter() *Router {
 	return &Router{
-		incoming: make(chan domain.Message, 64), // Buffered channel for incoming messages
+		incoming: make(chan domain.Message, 512), // Buffered channel for incoming messages
 		routes:   make(map[domain.Identifier][]chan<- domain.Message),
 	}
 }
@@ -26,7 +26,6 @@ func (r *Router) IncomingChannel() chan<- domain.Message {
 
 func (r *Router) Run() {
 	for msg := range r.incoming {
-		startTime := time.Now()
 		r.mu.RLock()
 		channels := r.routes[msg.Identifier]
 
@@ -38,7 +37,6 @@ func (r *Router) Run() {
 			}
 		}
 		r.mu.RUnlock()
-		fmt.Printf("Message routed to %d channels in %v\n", len(channels), time.Since(startTime))
 	}
 }
 

services/data_service/internal/server/gprc_control_server.go

@@ -0,0 +1,69 @@
+package server
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/google/uuid"
+	pb "gitlab.michelsen.id/phillmichelsen/tessera/pkg/pb/data_service"
+	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/domain"
+	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/manager"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type GRPCControlServer struct {
+	pb.UnimplementedDataServiceControlServer
+	manager *manager.Manager
+}
+
+func NewGRPCControlServer(m *manager.Manager) *GRPCControlServer {
+	return &GRPCControlServer{
+		manager: m,
+	}
+}
+
+func (s *GRPCControlServer) StartStream(_ context.Context, _ *pb.StartStreamRequest) (*pb.StartStreamResponse, error) {
+	streamID, err := s.manager.StartStream()
+	if err != nil {
+		return nil, fmt.Errorf("failed to start stream: %w", err)
+	}
+
+	return &pb.StartStreamResponse{StreamUuid: streamID.String()}, nil
+}
+
+func (s *GRPCControlServer) ConfigureStream(_ context.Context, req *pb.ConfigureStreamRequest) (*pb.ConfigureStreamResponse, error) {
+	streamID, err := uuid.Parse(req.StreamUuid)
+	if err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "invalid stream_uuid %q: %v", req.StreamUuid, err)
+	}
+
+	// Transform identifiers from protobuf to domain format
+	var ids []domain.Identifier
+	for _, i := range req.Identifiers {
+		ids = append(ids, domain.Identifier{
+			Provider: i.Provider,
+			Subject:  i.Subject,
+		})
+	}
+
+	if err := s.manager.ConfigureStream(streamID, ids); err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "configure failed: %v", err)
+	}
+
+	return &pb.ConfigureStreamResponse{}, nil
+}
+
+func (s *GRPCControlServer) StopStream(_ context.Context, req *pb.StopStreamRequest) (*pb.StopStreamResponse, error) {
+	streamID, err := uuid.Parse(req.StreamUuid)
+	if err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "invalid stream_uuid %q: %v", req.StreamUuid, err)
+	}
+
+	err = s.manager.StopStream(streamID) // Should only error if the stream doesn't exist
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "failed to stop stream: %v", err)
+	}
+
+	return &pb.StopStreamResponse{}, nil
+}

services/data_service/internal/server/grpc_streaming_server.go

@@ -1,11 +1,10 @@
 package server
 
 import (
-	"context"
 	"fmt"
+
 	"github.com/google/uuid"
 	pb "gitlab.michelsen.id/phillmichelsen/tessera/pkg/pb/data_service"
-	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/domain"
 	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/manager"
 )
 
@@ -20,23 +19,6 @@ func NewGRPCStreamingServer(m *manager.Manager) *GRPCStreamingServer {
 	}
 }
 
-func (s *GRPCStreamingServer) StartStream(ctx context.Context, req *pb.StartStreamRequest) (*pb.StartStreamResponse, error) {
-	var ids []domain.Identifier
-	for _, id := range req.Identifiers {
-		ids = append(ids, domain.Identifier{
-			Provider: id.Provider,
-			Subject:  id.Subject,
-		})
-	}
-
-	streamID, err := s.manager.StartStream(ids)
-	if err != nil {
-		return nil, fmt.Errorf("failed to start stream: %w", err)
-	}
-
-	return &pb.StartStreamResponse{StreamUuid: streamID.String()}, nil
-}
-
 func (s *GRPCStreamingServer) ConnectStream(req *pb.ConnectStreamRequest, stream pb.DataServiceStreaming_ConnectStreamServer) error {
 	streamUUID, err := uuid.Parse(req.StreamUuid)
 	if err != nil {
@@ -63,7 +45,7 @@ func (s *GRPCStreamingServer) ConnectStream(req *pb.ConnectStreamRequest, stream
 					Provider: msg.Identifier.Provider,
 					Subject:  msg.Identifier.Subject,
 				},
-				Payload: fmt.Sprintf("%s", msg.Payload),
+				Payload: fmt.Sprintf("%v", msg.Payload),
 			})
 
 			if err != nil {

services/data_service/internal/server/socket_streaming_server.go

@@ -4,11 +4,12 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
-	"github.com/google/uuid"
-	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/manager"
 	"io"
 	"net"
 	"strings"
+
+	"github.com/google/uuid"
+	"gitlab.michelsen.id/phillmichelsen/tessera/services/data_service/internal/manager"
 )
 
 type SocketStreamingServer struct {
@@ -34,7 +35,14 @@ func (s *SocketStreamingServer) Serve(lis net.Listener) error {
 }
 
 func (s *SocketStreamingServer) handleConnection(conn net.Conn) {
-	defer conn.Close()
+	defer func(conn net.Conn) {
+		err := conn.Close()
+		if err != nil {
+			fmt.Printf("Failed to close connection: %v\n", err)
+		} else {
+			fmt.Println("Connection closed")
+		}
+	}(conn)
 	reader := bufio.NewReader(conn)
 
 	raw, err := reader.ReadString('\n')