From 66c386942da03c9f9a5586e2886bfa742d61a9d4 Mon Sep 17 00:00:00 2001
From: Xeronith <xeronith@yahoo.com>
Date: Mon, 12 Dec 2022 19:46:43 +0330
Subject: [PATCH] feat(components): :sparkles: following retrieval api

---
 greataped/components/api/handlers/factory.go  |   1 +
 .../api/handlers/get_following_handler.go     |  45 ++++
 .../components/api/operations/factory.go      |   1 +
 .../api/operations/get_following_operation.go |  51 +++++
 greataped/components/api/protobuf/spis.pb.go  | 204 ++++++++++++++++--
 greataped/components/api/protobuf/spis.proto  |  15 ++
 .../api/services/get_following_service.go     |  34 +++
 greataped/components/contracts/api.go         |   1 +
 greataped/components/contracts/opcodes.go     |   6 +
 greataped/components/contracts/spi.go         |  10 +
 .../components/contracts/system_component.go  |   2 +
 .../components/contracts/system_dispatcher.go |   3 +
 greataped/components/core/api_methods.go      |  11 +
 greataped/components/core/initializer.go      |   8 +
 greataped/components/core/spi.go              |   4 +
 greataped/components/core/spi_manager.go      |  65 ++++++
 greataped/components/core/system_results.go   |   4 +
 17 files changed, 451 insertions(+), 14 deletions(-)
 create mode 100644 greataped/components/api/handlers/get_following_handler.go
 create mode 100644 greataped/components/api/operations/get_following_operation.go
 create mode 100644 greataped/components/api/services/get_following_service.go

diff --git a/greataped/components/api/handlers/factory.go b/greataped/components/api/handlers/factory.go
index 7d00ffb..b2e010c 100644
--- a/greataped/components/api/handlers/factory.go
+++ b/greataped/components/api/handlers/factory.go
@@ -18,6 +18,7 @@ func (factory *httpHandlerFactory) Handlers() []IHttpHandler {
 		FollowActorHandler(),          // │ G . /u/:username/follow
 		AuthorizeInteractionHandler(), // │ G . /authorize_interaction
 		GetFollowersHandler(),         // │ G . /u/:username/followers
+		GetFollowingHandler(),         // │ G . /u/:username/following
 	}
 }
 
diff --git a/greataped/components/api/handlers/get_following_handler.go b/greataped/components/api/handlers/get_following_handler.go
new file mode 100644
index 0000000..5897090
--- /dev/null
+++ b/greataped/components/api/handlers/get_following_handler.go
@@ -0,0 +1,45 @@
+package handlers
+
+import (
+	"net/http"
+
+	. "github.com/xeronith/diamante/contracts/network/http"
+	pipeline "github.com/xeronith/diamante/network/http"
+	. "rail.town/infrastructure/components/api/protobuf"
+	. "rail.town/infrastructure/components/contracts"
+)
+
+type getFollowingHandler struct {
+}
+
+func GetFollowingHandler() IHttpHandler {
+	return &getFollowingHandler{}
+}
+
+func (handler *getFollowingHandler) Method() string {
+	return http.MethodGet
+}
+
+func (handler *getFollowingHandler) Path() string {
+	return "/u/:username/following"
+}
+
+func (handler *getFollowingHandler) HandlerFunc() HttpHandlerFunc {
+	return func(x IServerDispatcher) error {
+		request := &GetFollowingRequest{}
+		result := &GetFollowingResult{}
+
+		onRequestUnmarshalled := func(request *GetFollowingRequest) {
+			request.Username = x.Param("username")
+		}
+
+		return pipeline.Handle(x,
+			"get_following",
+			GET_FOLLOWING_REQUEST,
+			GET_FOLLOWING_RESULT,
+			request, result,
+			onRequestUnmarshalled,
+			false,
+		)
+	}
+}
diff --git a/greataped/components/api/operations/factory.go b/greataped/components/api/operations/factory.go
index d55e821..9a55c8e 100644
--- a/greataped/components/api/operations/factory.go
+++ b/greataped/components/api/operations/factory.go
@@ -19,6 +19,7 @@ func (factory *operationFactory) Operations() []IOperation {
 		FollowActorOperation(),
 		AuthorizeInteractionOperation(),
 		GetFollowersOperation(),
+		GetFollowingOperation(),
 	}
 }
 
diff --git a/greataped/components/api/operations/get_following_operation.go b/greataped/components/api/operations/get_following_operation.go
new file mode 100644
index 0000000..251f1cb
--- /dev/null
+++ b/greataped/components/api/operations/get_following_operation.go
@@ -0,0 +1,51 @@
+package operations
+
+import (
+	. "github.com/xeronith/diamante/contracts/operation"
+	. "github.com/xeronith/diamante/contracts/service"
+	. "github.com/xeronith/diamante/contracts/system"
+	. "github.com/xeronith/diamante/operation"
+	. "rail.town/infrastructure/components/api/protobuf"
+	. "rail.town/infrastructure/components/api/services"
+	. "rail.town/infrastructure/components/contracts"
+)
+
+type getFollowingOperation struct {
+	Operation
+
+	run func(IContext, *GetFollowingRequest) (*GetFollowingResult, error)
+}
+
+func GetFollowingOperation() IOperation {
+	return &getFollowingOperation{
+		run: GetFollowingService,
+	}
+}
+
+func (operation *getFollowingOperation) Id() (ID, ID) {
+	return GET_FOLLOWING_REQUEST, GET_FOLLOWING_RESULT
+}
+
+func (operation *getFollowingOperation) InputContainer() Pointer {
+	return new(GetFollowingRequest)
+}
+
+func (operation *getFollowingOperation) OutputContainer() Pointer {
+	return new(GetFollowingResult)
+}
+
+func (operation *getFollowingOperation) Execute(context IContext, payload Pointer) (Pointer, error) {
+	return operation.run(context, payload.(*GetFollowingRequest))
+}
+
+/*
+func (operation *getFollowingOperation) ExecutionTimeLimits() (Duration, Duration, Duration) {
+	var (
+		TIME_LIMIT_WARNING  Duration = 20_000_000
+		TIME_LIMIT_ALERT    Duration = 35_000_000
+		TIME_LIMIT_CRITICAL Duration = 50_000_000
+	)
+
+	return TIME_LIMIT_WARNING, TIME_LIMIT_ALERT, TIME_LIMIT_CRITICAL
+}
+*/
diff --git a/greataped/components/api/protobuf/spis.pb.go b/greataped/components/api/protobuf/spis.pb.go
index 1901b92..e8c93fa 100644
--- a/greataped/components/api/protobuf/spis.pb.go
+++ b/greataped/components/api/protobuf/spis.pb.go
@@ -1576,6 +1576,142 @@ func (x *GetFollowersResult) GetFirst() string {
 	return ""
 }
 
+// API: GetFollowing
+// -----------------------------------------------------------
+type GetFollowingRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Username string `protobuf:"bytes,1,opt,name=username,proto3" json:"username,omitempty"`
+}
+
+func (x *GetFollowingRequest) Reset() {
+	*x = GetFollowingRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_spis_proto_msgTypes[26]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetFollowingRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetFollowingRequest) ProtoMessage() {}
+
+func (x *GetFollowingRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_spis_proto_msgTypes[26]
+	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 GetFollowingRequest.ProtoReflect.Descriptor instead.
+func (*GetFollowingRequest) Descriptor() ([]byte, []int) {
+	return file_spis_proto_rawDescGZIP(), []int{26}
+}
+
+func (x *GetFollowingRequest) GetUsername() string {
+	if x != nil {
+		return x.Username
+	}
+	return ""
+}
+
+type GetFollowingResult struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Context      string   `protobuf:"bytes,1,opt,name=context,json=@context,proto3" json:"context,omitempty"`
+	Id           string   `protobuf:"bytes,2,opt,name=id,proto3" json:"id,omitempty"`
+	Type         string   `protobuf:"bytes,3,opt,name=type,proto3" json:"type,omitempty"`
+	TotalItems   int32    `protobuf:"varint,4,opt,name=totalItems,proto3" json:"totalItems,omitempty"`
+	OrderedItems []string `protobuf:"bytes,5,rep,name=orderedItems,proto3" json:"orderedItems,omitempty"`
+	First        string   `protobuf:"bytes,6,opt,name=first,proto3" json:"first,omitempty"`
+}
+
+func (x *GetFollowingResult) Reset() {
+	*x = GetFollowingResult{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_spis_proto_msgTypes[27]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetFollowingResult) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetFollowingResult) ProtoMessage() {}
+
+func (x *GetFollowingResult) ProtoReflect() protoreflect.Message {
+	mi := &file_spis_proto_msgTypes[27]
+	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 GetFollowingResult.ProtoReflect.Descriptor instead.
+func (*GetFollowingResult) Descriptor() ([]byte, []int) {
+	return file_spis_proto_rawDescGZIP(), []int{27}
+}
+
+func (x *GetFollowingResult) GetContext() string {
+	if x != nil {
+		return x.Context
+	}
+	return ""
+}
+
+func (x *GetFollowingResult) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *GetFollowingResult) GetType() string {
+	if x != nil {
+		return x.Type
+	}
+	return ""
+}
+
+func (x *GetFollowingResult) GetTotalItems() int32 {
+	if x != nil {
+		return x.TotalItems
+	}
+	return 0
+}
+
+func (x *GetFollowingResult) GetOrderedItems() []string {
+	if x != nil {
+		return x.OrderedItems
+	}
+	return nil
+}
+
+func (x *GetFollowingResult) GetFirst() string {
+	if x != nil {
+		return x.First
+	}
+	return ""
+}
+
 var File_spis_proto protoreflect.FileDescriptor
 
 var file_spis_proto_rawDesc = []byte{
@@ -1726,8 +1862,22 @@ var file_spis_proto_rawDesc = []byte{
 	0x74, 0x65, 0x6d, 0x73, 0x12, 0x22, 0x0a, 0x0c, 0x6f, 0x72, 0x64, 0x65, 0x72, 0x65, 0x64, 0x49,
 	0x74, 0x65, 0x6d, 0x73, 0x18, 0x05, 0x20, 0x03, 0x28, 0x09, 0x52, 0x0c, 0x6f, 0x72, 0x64, 0x65,
 	0x72, 0x65, 0x64, 0x49, 0x74, 0x65, 0x6d, 0x73, 0x12, 0x14, 0x0a, 0x05, 0x66, 0x69, 0x72, 0x73,
-	0x74, 0x18, 0x06, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x66, 0x69, 0x72, 0x73, 0x74, 0x42, 0x04,
-	0x5a, 0x02, 0x2e, 0x2f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x74, 0x18, 0x06, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x66, 0x69, 0x72, 0x73, 0x74, 0x22, 0x31,
+	0x0a, 0x13, 0x47, 0x65, 0x74, 0x46, 0x6f, 0x6c, 0x6c, 0x6f, 0x77, 0x69, 0x6e, 0x67, 0x52, 0x65,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x1a, 0x0a, 0x08, 0x75, 0x73, 0x65, 0x72, 0x6e, 0x61, 0x6d,
+	0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x75, 0x73, 0x65, 0x72, 0x6e, 0x61, 0x6d,
+	0x65, 0x22, 0xad, 0x01, 0x0a, 0x12, 0x47, 0x65, 0x74, 0x46, 0x6f, 0x6c, 0x6c, 0x6f, 0x77, 0x69,
+	0x6e, 0x67, 0x52, 0x65, 0x73, 0x75, 0x6c, 0x74, 0x12, 0x19, 0x0a, 0x07, 0x63, 0x6f, 0x6e, 0x74,
+	0x65, 0x78, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x40, 0x63, 0x6f, 0x6e, 0x74,
+	0x65, 0x78, 0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x02, 0x69, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28,
+	0x09, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x1e, 0x0a, 0x0a, 0x74, 0x6f, 0x74, 0x61, 0x6c,
+	0x49, 0x74, 0x65, 0x6d, 0x73, 0x18, 0x04, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0a, 0x74, 0x6f, 0x74,
+	0x61, 0x6c, 0x49, 0x74, 0x65, 0x6d, 0x73, 0x12, 0x22, 0x0a, 0x0c, 0x6f, 0x72, 0x64, 0x65, 0x72,
+	0x65, 0x64, 0x49, 0x74, 0x65, 0x6d, 0x73, 0x18, 0x05, 0x20, 0x03, 0x28, 0x09, 0x52, 0x0c, 0x6f,
+	0x72, 0x64, 0x65, 0x72, 0x65, 0x64, 0x49, 0x74, 0x65, 0x6d, 0x73, 0x12, 0x14, 0x0a, 0x05, 0x66,
+	0x69, 0x72, 0x73, 0x74, 0x18, 0x06, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x66, 0x69, 0x72, 0x73,
+	0x74, 0x42, 0x04, 0x5a, 0x02, 0x2e, 0x2f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1742,7 +1892,7 @@ func file_spis_proto_rawDescGZIP() []byte {
 	return file_spis_proto_rawDescData
 }
 
-var file_spis_proto_msgTypes = make([]protoimpl.MessageInfo, 26)
+var file_spis_proto_msgTypes = make([]protoimpl.MessageInfo, 28)
 var file_spis_proto_goTypes = []interface{}{
 	(*SystemCallRequest)(nil),           // 0: protobuf.SystemCallRequest
 	(*SystemCallResult)(nil),            // 1: protobuf.SystemCallResult
@@ -1770,18 +1920,20 @@ var file_spis_proto_goTypes = []interface{}{
 	(*AuthorizeInteractionResult)(nil),  // 23: protobuf.AuthorizeInteractionResult
 	(*GetFollowersRequest)(nil),         // 24: protobuf.GetFollowersRequest
 	(*GetFollowersResult)(nil),          // 25: protobuf.GetFollowersResult
-	(*Document)(nil),                    // 26: protobuf.Document
-	(*ActivityPubLink)(nil),             // 27: protobuf.ActivityPubLink
-	(*ActivityPubMedia)(nil),            // 28: protobuf.ActivityPubMedia
-	(*ActivityPubPublicKey)(nil),        // 29: protobuf.ActivityPubPublicKey
+	(*GetFollowingRequest)(nil),         // 26: protobuf.GetFollowingRequest
+	(*GetFollowingResult)(nil),          // 27: protobuf.GetFollowingResult
+	(*Document)(nil),                    // 28: protobuf.Document
+	(*ActivityPubLink)(nil),             // 29: protobuf.ActivityPubLink
+	(*ActivityPubMedia)(nil),            // 30: protobuf.ActivityPubMedia
+	(*ActivityPubPublicKey)(nil),        // 31: protobuf.ActivityPubPublicKey
 }
 var file_spis_proto_depIdxs = []int32{
-	26, // 0: protobuf.EchoRequest.document:type_name -> protobuf.Document
-	26, // 1: protobuf.EchoResult.document:type_name -> protobuf.Document
-	27, // 2: protobuf.WebfingerResult.links:type_name -> protobuf.ActivityPubLink
-	28, // 3: protobuf.GetActorResult.icon:type_name -> protobuf.ActivityPubMedia
-	28, // 4: protobuf.GetActorResult.image:type_name -> protobuf.ActivityPubMedia
-	29, // 5: protobuf.GetActorResult.publicKey:type_name -> protobuf.ActivityPubPublicKey
+	28, // 0: protobuf.EchoRequest.document:type_name -> protobuf.Document
+	28, // 1: protobuf.EchoResult.document:type_name -> protobuf.Document
+	29, // 2: protobuf.WebfingerResult.links:type_name -> protobuf.ActivityPubLink
+	30, // 3: protobuf.GetActorResult.icon:type_name -> protobuf.ActivityPubMedia
+	30, // 4: protobuf.GetActorResult.image:type_name -> protobuf.ActivityPubMedia
+	31, // 5: protobuf.GetActorResult.publicKey:type_name -> protobuf.ActivityPubPublicKey
 	6,  // [6:6] is the sub-list for method output_type
 	6,  // [6:6] is the sub-list for method input_type
 	6,  // [6:6] is the sub-list for extension type_name
@@ -2108,6 +2260,30 @@ func file_spis_proto_init() {
 				return nil
 			}
 		}
+		file_spis_proto_msgTypes[26].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetFollowingRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_spis_proto_msgTypes[27].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetFollowingResult); 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{
@@ -2115,7 +2291,7 @@ func file_spis_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_spis_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   26,
+			NumMessages:   28,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/greataped/components/api/protobuf/spis.proto b/greataped/components/api/protobuf/spis.proto
index ff494b5..90aae60 100644
--- a/greataped/components/api/protobuf/spis.proto
+++ b/greataped/components/api/protobuf/spis.proto
@@ -175,4 +175,19 @@ message GetFollowersResult {
     string first = 0x00000006;
 }
 
+// API: GetFollowing
+//-----------------------------------------------------------
+message GetFollowingRequest {
+    string username = 0x00000001;
+}
+
+message GetFollowingResult {
+    string context = 0x00000001 [json_name = "@context"];
+    string id = 0x00000002;
+    string type = 0x00000003;
+    int32 totalItems = 0x00000004;
+    repeated string orderedItems = 0x00000005;
+    string first = 0x00000006;
+}
+
 //-----------------------------------------------------------
diff --git a/greataped/components/api/services/get_following_service.go b/greataped/components/api/services/get_following_service.go
new file mode 100644
index 0000000..176eb3a
--- /dev/null
+++ b/greataped/components/api/services/get_following_service.go
@@ -0,0 +1,34 @@
+package services
+
+import (
+	. "github.com/xeronith/diamante/contracts/service"
+	. "rail.town/infrastructure/components/api/protobuf"
+	. "rail.town/infrastructure/components/contracts"
+	"rail.town/infrastructure/components/core"
+)
+
+// noinspection GoUnusedParameter
+func GetFollowingService(context IContext, input *GetFollowingRequest) (result *GetFollowingResult, err error) {
+	conductor := core.Conductor
+	_ = GET_FOLLOWING_REQUEST
+
+	conductor.LogRemoteCall(context, INITIALIZE, "get_following", input, result, err)
+	defer func() { conductor.LogRemoteCall(context, FINALIZE, "get_following", input, result, err) }()
+
+	_result, _err := conductor.GetFollowing(input.Username, context.Identity())
+	if _err != nil {
+		err = _err
+		return nil, err
+	}
+
+	_ = _result
+
+	result = context.ResultContainer().(*GetFollowingResult)
+	result.Context = _result.Context()
+	result.Id = _result.Id()
+	result.Type = _result.Type()
+	result.TotalItems = _result.TotalItems()
+	result.OrderedItems = _result.OrderedItems()
+	result.First = _result.First()
+	return result, nil
+}
diff --git a/greataped/components/contracts/api.go b/greataped/components/contracts/api.go
index beb5ce3..c712ccd 100644
--- a/greataped/components/contracts/api.go
+++ b/greataped/components/contracts/api.go
@@ -19,4 +19,5 @@ type IApi interface {
 	FollowActor(*FollowActorRequest) (*FollowActorResult, error)
 	AuthorizeInteraction(*AuthorizeInteractionRequest) (*AuthorizeInteractionResult, error)
 	GetFollowers(*GetFollowersRequest) (*GetFollowersResult, error)
+	GetFollowing(*GetFollowingRequest) (*GetFollowingResult, error)
 }
diff --git a/greataped/components/contracts/opcodes.go b/greataped/components/contracts/opcodes.go
index ab7c4fa..a805061 100644
--- a/greataped/components/contracts/opcodes.go
+++ b/greataped/components/contracts/opcodes.go
@@ -55,6 +55,10 @@ const (
 	//GetFollowersOperation
 	GET_FOLLOWERS_REQUEST = 0x3F20FD65
 	GET_FOLLOWERS_RESULT  = 0x7F3E2EB5
+
+	//GetFollowingOperation
+	GET_FOLLOWING_REQUEST = 0xF9841DB9
+	GET_FOLLOWING_RESULT  = 0xD707408F
 )
 
 var OPCODES = Opcodes{
@@ -83,4 +87,6 @@ var OPCODES = Opcodes{
 	0xB38E936F: "AuthorizeInteraction",
 	0x3F20FD65: "GET_FOLLOWERS",
 	0x7F3E2EB5: "GetFollowers",
+	0xF9841DB9: "GET_FOLLOWING",
+	0xD707408F: "GetFollowing",
 }
diff --git a/greataped/components/contracts/spi.go b/greataped/components/contracts/spi.go
index d744c49..8842c84 100644
--- a/greataped/components/contracts/spi.go
+++ b/greataped/components/contracts/spi.go
@@ -66,6 +66,7 @@ type (
 		FollowActor(username string, acct string, editor Identity) (IFollowActorResult, error)
 		AuthorizeInteraction(uri string, editor Identity) (IAuthorizeInteractionResult, error)
 		GetFollowers(username string, editor Identity) (IGetFollowersResult, error)
+		GetFollowing(username string, editor Identity) (IGetFollowingResult, error)
 	}
 
 	IEchoResult interface {
@@ -147,4 +148,13 @@ type (
 		OrderedItems() []string
 		First() string
 	}
+
+	IGetFollowingResult interface {
+		Context() string
+		Id() string
+		Type() string
+		TotalItems() int32
+		OrderedItems() []string
+		First() string
+	}
 )
diff --git a/greataped/components/contracts/system_component.go b/greataped/components/contracts/system_component.go
index dca57e7..1d2b985 100644
--- a/greataped/components/contracts/system_component.go
+++ b/greataped/components/contracts/system_component.go
@@ -269,6 +269,7 @@ type (
 		FollowActor(username string, acct string, editor Identity) (IFollowActorResult, error)
 		AuthorizeInteraction(uri string, editor Identity) (IAuthorizeInteractionResult, error)
 		GetFollowers(username string, editor Identity) (IGetFollowersResult, error)
+		GetFollowing(username string, editor Identity) (IGetFollowingResult, error)
 
 		NewDocument(id int64, content string) (IDocument, error)
 		NewSystemSchedule(id int64, enabled bool, config string) (ISystemSchedule, error)
@@ -299,6 +300,7 @@ type (
 		NewFollowActorResult(url string, ignored interface{}) IFollowActorResult
 		NewAuthorizeInteractionResult(uri string, success bool, ignored interface{}) IAuthorizeInteractionResult
 		NewGetFollowersResult(context string, id string, type_ string, totalItems int32, orderedItems []string, first string, ignored interface{}) IGetFollowersResult
+		NewGetFollowingResult(context string, id string, type_ string, totalItems int32, orderedItems []string, first string, ignored interface{}) IGetFollowingResult
 	}
 
 	ISystemComponent interface {
diff --git a/greataped/components/contracts/system_dispatcher.go b/greataped/components/contracts/system_dispatcher.go
index f682314..2f69f3f 100644
--- a/greataped/components/contracts/system_dispatcher.go
+++ b/greataped/components/contracts/system_dispatcher.go
@@ -1043,6 +1043,7 @@ type IDispatcher interface {
 	FollowActor(username string, acct string) (IFollowActorResult, error)
 	AuthorizeInteraction(uri string) (IAuthorizeInteractionResult, error)
 	GetFollowers(username string) (IGetFollowersResult, error)
+	GetFollowing(username string) (IGetFollowingResult, error)
 
 	// NewDocument creates a new 'Document' instance using the provided property values.
 	NewDocument(id int64, content string) (IDocument, error)
@@ -1136,6 +1137,8 @@ type IDispatcher interface {
 	NewAuthorizeInteractionResult(uri string, success bool) IAuthorizeInteractionResult
 	// NewGetFollowersResult creates a new result container for 'Get Followers' system action.
 	NewGetFollowersResult(context string, id string, type_ string, totalItems int32, orderedItems []string, first string) IGetFollowersResult
+	// NewGetFollowingResult creates a new result container for 'Get Following' system action.
+	NewGetFollowingResult(context string, id string, type_ string, totalItems int32, orderedItems []string, first string) IGetFollowingResult
 	// Assert asserts the provided condition and panics if the assertion is not valid.
 	Assert(condition bool) IAssertionResult
 	// AssertNoError panics if the provided error is not nil.
diff --git a/greataped/components/core/api_methods.go b/greataped/components/core/api_methods.go
index 9f8a390..30bad59 100644
--- a/greataped/components/core/api_methods.go
+++ b/greataped/components/core/api_methods.go
@@ -135,6 +135,16 @@ func (api *api) GetFollowers(request *GetFollowersRequest) (*GetFollowersResult,
 	}
 }
 
+func (api *api) GetFollowing(request *GetFollowingRequest) (*GetFollowingResult, error) {
+	result, err := api.call(GET_FOLLOWING_REQUEST, request)
+
+	if err != nil {
+		return nil, err
+	} else {
+		return result.(*GetFollowingResult), nil
+	}
+}
+
 func init() {
 	API_RESULT[SYSTEM_CALL_RESULT] = SystemCallResult{}
 	API_RESULT[ECHO_RESULT] = EchoResult{}
@@ -149,4 +159,5 @@ func init() {
 	API_RESULT[FOLLOW_ACTOR_RESULT] = FollowActorResult{}
 	API_RESULT[AUTHORIZE_INTERACTION_RESULT] = AuthorizeInteractionResult{}
 	API_RESULT[GET_FOLLOWERS_RESULT] = GetFollowersResult{}
+	API_RESULT[GET_FOLLOWING_RESULT] = GetFollowingResult{}
 }
diff --git a/greataped/components/core/initializer.go b/greataped/components/core/initializer.go
index a146efa..2a13608 100644
--- a/greataped/components/core/initializer.go
+++ b/greataped/components/core/initializer.go
@@ -1143,6 +1143,10 @@ func (conductor *conductor) GetFollowers(username string, editor Identity) (IGet
 	return conductor.spiManager.GetFollowers(username, editor)
 }
 
+func (conductor *conductor) GetFollowing(username string, editor Identity) (IGetFollowingResult, error) {
+	return conductor.spiManager.GetFollowing(username, editor)
+}
+
 func (conductor *conductor) NewDocument(id int64, content string) (IDocument, error) {
 	return NewDocument(id, content)
 }
@@ -1259,6 +1263,10 @@ func (conductor *conductor) NewGetFollowersResult(context string, id string, typ
 	return NewGetFollowersResult(context, id, type_, totalItems, orderedItems, first, nil)
 }
 
+func (conductor *conductor) NewGetFollowingResult(context string, id string, type_ string, totalItems int32, orderedItems []string, first string, _ interface{}) IGetFollowingResult {
+	return NewGetFollowingResult(context, id, type_, totalItems, orderedItems, first, nil)
+}
+
 func (conductor *conductor) LogRemoteCall(context IContext, eventType uint32, source string, input, result interface{}, err error) {
 	errorMessage := ""
 	if err != nil {
diff --git a/greataped/components/core/spi.go b/greataped/components/core/spi.go
index ae6d2ef..2f2db50 100644
--- a/greataped/components/core/spi.go
+++ b/greataped/components/core/spi.go
@@ -282,3 +282,7 @@ func (dispatcher *dispatcher) AuthorizeInteraction(uri string) (IAuthorizeIntera
 func (dispatcher *dispatcher) GetFollowers(username string) (IGetFollowersResult, error) {
 	return dispatcher.conductor.SpiManager().GetFollowers(username, dispatcher.identity)
 }
+
+func (dispatcher *dispatcher) GetFollowing(username string) (IGetFollowingResult, error) {
+	return dispatcher.conductor.SpiManager().GetFollowing(username, dispatcher.identity)
+}
diff --git a/greataped/components/core/spi_manager.go b/greataped/components/core/spi_manager.go
index 178d807..fb0755c 100644
--- a/greataped/components/core/spi_manager.go
+++ b/greataped/components/core/spi_manager.go
@@ -844,3 +844,68 @@ func (manager *spiManager) GetFollowers(username string, editor Identity) (resul
 		return result, nil
 	}
 }
+
+//region IGetFollowingResult Implementation
+
+type getFollowingResult struct {
+	context      string
+	id           string
+	type_        string
+	totalItems   int32
+	orderedItems []string
+	first        string
+}
+
+func NewGetFollowingResult(context string, id string, type_ string, totalItems int32, orderedItems []string, first string, _ interface{}) IGetFollowingResult {
+	return &getFollowingResult{
+		context:      context,
+		id:           id,
+		type_:        type_,
+		totalItems:   totalItems,
+		orderedItems: orderedItems,
+		first:        first,
+	}
+}
+
+func (result getFollowingResult) Context() string {
+	return result.context
+}
+
+func (result getFollowingResult) Id() string {
+	return result.id
+}
+
+func (result getFollowingResult) Type() string {
+	return result.type_
+}
+
+func (result getFollowingResult) TotalItems() int32 {
+	return result.totalItems
+}
+
+func (result getFollowingResult) OrderedItems() []string {
+	return result.orderedItems
+}
+
+func (result getFollowingResult) First() string {
+	return result.first
+}
+
+//endregion
+
+func (manager *spiManager) GetFollowing(username string, editor Identity) (result IGetFollowingResult, err error) {
+	defer func() {
+		if reason := recover(); reason != nil {
+			err = manager.Error(reason)
+		}
+	}()
+
+	editor.Lock(GET_FOLLOWING_REQUEST)
+	defer editor.Unlock(GET_FOLLOWING_REQUEST)
+
+	if result, err = commands.GetFollowing(NewDispatcher(Conductor, editor), username); err != nil {
+		return nil, err
+	} else {
+		return result, nil
+	}
+}
diff --git a/greataped/components/core/system_results.go b/greataped/components/core/system_results.go
index 86cfe95..e49a8fb 100644
--- a/greataped/components/core/system_results.go
+++ b/greataped/components/core/system_results.go
@@ -52,4 +52,8 @@ func (dispatcher *dispatcher) NewGetFollowersResult(context string, id string, t
 	return NewGetFollowersResult(context, id, type_, totalItems, orderedItems, first, nil)
 }
 
+func (dispatcher *dispatcher) NewGetFollowingResult(context string, id string, type_ string, totalItems int32, orderedItems []string, first string) IGetFollowingResult {
+	return NewGetFollowingResult(context, id, type_, totalItems, orderedItems, first, nil)
+}
+
 //endregion