From f8eb3bfd9b535293ce7cffcd8f79452b91909380 Mon Sep 17 00:00:00 2001 From: ben-toogood Date: Fri, 8 Jan 2021 16:20:28 +0000 Subject: [PATCH] Routing service (#36) --- routing/.gitignore | 2 + routing/Dockerfile | 3 + routing/Makefile | 22 +++ routing/generate.go | 2 + routing/handler/handler.go | 85 ++++++++ routing/handler/handler_test.go | 251 ++++++++++++++++++++++++ routing/main.go | 41 ++++ routing/proto/routing.pb.go | 314 ++++++++++++++++++++++++++++++ routing/proto/routing.pb.micro.go | 94 +++++++++ routing/proto/routing.proto | 22 +++ 10 files changed, 836 insertions(+) create mode 100644 routing/.gitignore create mode 100644 routing/Dockerfile create mode 100644 routing/Makefile create mode 100644 routing/generate.go create mode 100644 routing/handler/handler.go create mode 100644 routing/handler/handler_test.go create mode 100644 routing/main.go create mode 100644 routing/proto/routing.pb.go create mode 100644 routing/proto/routing.pb.micro.go create mode 100644 routing/proto/routing.proto diff --git a/routing/.gitignore b/routing/.gitignore new file mode 100644 index 0000000..aa90498 --- /dev/null +++ b/routing/.gitignore @@ -0,0 +1,2 @@ + +routing diff --git a/routing/Dockerfile b/routing/Dockerfile new file mode 100644 index 0000000..08751ff --- /dev/null +++ b/routing/Dockerfile @@ -0,0 +1,3 @@ +FROM alpine +ADD routing /routing +ENTRYPOINT [ "/routing" ] diff --git a/routing/Makefile b/routing/Makefile new file mode 100644 index 0000000..0e9a33f --- /dev/null +++ b/routing/Makefile @@ -0,0 +1,22 @@ + +GOPATH:=$(shell go env GOPATH) +.PHONY: init +init: + go get -u github.com/golang/protobuf/proto + go get -u github.com/golang/protobuf/protoc-gen-go + go get github.com/micro/micro/v3/cmd/protoc-gen-micro +.PHONY: proto +proto: + protoc --proto_path=. --micro_out=. --go_out=:. proto/routing.proto + +.PHONY: build +build: + go build -o routing *.go + +.PHONY: test +test: + go test -v ./... -cover + +.PHONY: docker +docker: + docker build . -t routing:latest diff --git a/routing/generate.go b/routing/generate.go new file mode 100644 index 0000000..96f431a --- /dev/null +++ b/routing/generate.go @@ -0,0 +1,2 @@ +package main +//go:generate make proto diff --git a/routing/handler/handler.go b/routing/handler/handler.go new file mode 100644 index 0000000..9720f9b --- /dev/null +++ b/routing/handler/handler.go @@ -0,0 +1,85 @@ +package handler + +import ( + "context" + "fmt" + + "google.golang.org/protobuf/types/known/wrapperspb" + "googlemaps.github.io/maps" + + "github.com/micro/micro/v3/service/errors" + "github.com/micro/micro/v3/service/logger" + pb "github.com/micro/services/routing/proto" +) + +var ( + ErrDownstream = errors.InternalServerError("ROUTING_ERROR", "Unable to connect to routing provider") + ErrMissingOrigin = errors.BadRequest("MISSING_ORIGIN", "Missing origin") + ErrMissingDestination = errors.BadRequest("MISSING_DESTINATION", "Missing destination") + ErrMissingLatitude = errors.BadRequest("MISSING_LATITUDE", "Missing latitude") + ErrMissingLongitude = errors.BadRequest("MISSING_LONGITUDE", "Missing longitude") + ErrNoRoutes = errors.BadRequest("NO_ROUTES", "No routes found") +) + +type Routing struct { + Maps *maps.Client +} + +func (r *Routing) Route(ctx context.Context, req *pb.RouteRequest, rsp *pb.RouteResponse) error { + // validate the request + if req.Origin == nil { + return ErrMissingOrigin + } + if req.Destination == nil { + return ErrMissingDestination + } + if err := validatePoint(req.Origin); err != nil { + return err + } + if err := validatePoint(req.Destination); err != nil { + return err + } + + // query google maps + routes, _, err := r.Maps.Directions(ctx, &maps.DirectionsRequest{ + Origin: pointToString(req.Origin), Destination: pointToString(req.Destination), + }) + if err != nil { + logger.Errorf("Error geocoding: %v. Origin: '%v', Destination: '%v'", err, pointToString(req.Origin), pointToString(req.Destination)) + return ErrDownstream + } + if len(routes) == 0 { + return ErrNoRoutes + } + + // decode the points + points, err := routes[0].OverviewPolyline.Decode() + if err != nil { + logger.Errorf("Error decoding polyline: %v", err) + return ErrDownstream + } + + // return the result + rsp.Waypoints = make([]*pb.Point, len(points)) + for i, p := range points { + rsp.Waypoints[i] = &pb.Point{ + Latitude: &wrapperspb.DoubleValue{Value: p.Lat}, + Longitude: &wrapperspb.DoubleValue{Value: p.Lng}, + } + } + return nil +} + +func validatePoint(p *pb.Point) error { + if p.Latitude == nil { + return ErrMissingLatitude + } + if p.Longitude == nil { + return ErrMissingLongitude + } + return nil +} + +func pointToString(p *pb.Point) string { + return fmt.Sprintf("%v,%v", p.Latitude.Value, p.Longitude.Value) +} diff --git a/routing/handler/handler_test.go b/routing/handler/handler_test.go new file mode 100644 index 0000000..c5ee96f --- /dev/null +++ b/routing/handler/handler_test.go @@ -0,0 +1,251 @@ +package handler_test + +import ( + "context" + "fmt" + "net/http" + "net/http/httptest" + "strings" + "testing" + + "github.com/micro/services/routing/handler" + pb "github.com/micro/services/routing/proto" + "github.com/stretchr/testify/assert" + "google.golang.org/protobuf/types/known/wrapperspb" + "googlemaps.github.io/maps" +) + +const response = `{ + "routes" : [ + { + "bounds" : { + "northeast" : { + "lat" : -33.8150985, + "lng" : 151.2070825 + }, + "southwest" : { + "lat" : -33.8770049, + "lng" : 151.0031658 + } + }, + "overview_polyline": { + "points" : "xvumEgs{y[V@|AH|@DdABbC@@?^@N?zD@\\?F@" + }, + "copyrights" : "Map data ©2015 Google", + "legs" : [ + { + "distance" : { + "text" : "23.8 km", + "value" : 23846 + }, + "duration" : { + "text" : "37 mins", + "value" : 2214 + }, + "end_address" : "Parramatta NSW, Australia", + "end_location" : { + "lat" : -33.8150985, + "lng" : 151.0031658 + }, + "start_address" : "Sydney NSW, Australia", + "start_location" : { + "lat" : -33.8674944, + "lng" : 151.2070825 + }, + "steps" : [ + { + "distance" : { + "text" : "0.4 km", + "value" : 366 + }, + "duration" : { + "text" : "2 mins", + "value" : 103 + }, + "end_location" : { + "lat" : -33.8707786, + "lng" : 151.206934 + }, + "html_instructions" : "Head \u003cb\u003esouth\u003c/b\u003e on \u003cb\u003eGeorge St\u003c/b\u003e toward \u003cb\u003eBarrack St\u003c/b\u003e", + "polyline" : { + "points" : "xvumEgs{y[V@|AH|@DdABbC@@?^@N?zD@\\?F@" + }, + "start_location" : { + "lat" : -33.8674944, + "lng" : 151.2070825 + }, + "transit_details" : { + "trip_short_name": "7108" + }, + "travel_mode" : "DRIVING" + } + ], + "via_waypoint" : [] + } + ], + "summary" : "A4 and M4" + } + ], + "status" : "OK" + }` + +func TestRoute(t *testing.T) { + var oLat, oLng, dLat, dLng string + server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if comps := strings.Split(r.URL.Query().Get("origin"), ","); len(comps) == 2 { + oLat = comps[0] + oLng = comps[1] + } else { + oLat = "" + } + + if comps := strings.Split(r.URL.Query().Get("destination"), ","); len(comps) == 2 { + dLat = comps[0] + dLng = comps[1] + } else { + dLat = "" + } + + w.Header().Set("Content-Type", "application/json; charset=UTF-8") + w.WriteHeader(http.StatusOK) + fmt.Fprintln(w, response) + })) + defer server.Close() + + m, err := maps.NewClient(maps.WithBaseURL(server.URL), maps.WithAPIKey("shh")) + if err != nil { + t.Fatal(err) + } + h := &handler.Routing{Maps: m} + + originLat := &wrapperspb.DoubleValue{Value: 33.8688} + originLng := &wrapperspb.DoubleValue{Value: 151.2093} + + destinationLat := &wrapperspb.DoubleValue{Value: 33.8136} + destinationLng := &wrapperspb.DoubleValue{Value: 151.0034} + + tt := []struct { + Name string + Origin *pb.Point + Destination *pb.Point + Error error + Result []*pb.Point + }{ + { + Name: "MissingOrigin", + Destination: &pb.Point{Latitude: destinationLat, Longitude: destinationLng}, + Error: handler.ErrMissingOrigin, + }, + { + Name: "MissingDestination", + Origin: &pb.Point{Latitude: originLat, Longitude: originLng}, + Error: handler.ErrMissingDestination, + }, + { + Name: "MissingLatitude", + Origin: &pb.Point{Longitude: originLng}, + Destination: &pb.Point{Latitude: destinationLat, Longitude: destinationLng}, + Error: handler.ErrMissingLatitude, + }, + { + Name: "MissingLongitude", + Origin: &pb.Point{Latitude: originLat}, + Destination: &pb.Point{Latitude: destinationLat, Longitude: destinationLng}, + Error: handler.ErrMissingLongitude, + }, + { + Name: "Valid", + Origin: &pb.Point{Latitude: originLat, Longitude: originLng}, + Destination: &pb.Point{Latitude: destinationLat, Longitude: destinationLng}, + Result: []*pb.Point{ + { + Latitude: &wrapperspb.DoubleValue{Value: -33.867490000000004}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20708000000002}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.867610000000006}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20707000000002}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.868080000000006}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20702}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.868390000000005}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20699000000002}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.86874}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20697}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.869400000000006}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20696}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.86941}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20696}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.86957}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20695}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.86965}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20695}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.87059}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20694}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.870740000000005}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20694}, + }, + { + Latitude: &wrapperspb.DoubleValue{Value: -33.87078}, + Longitude: &wrapperspb.DoubleValue{Value: 151.20693}, + }, + }, + }, + } + + for _, tc := range tt { + t.Run(tc.Name, func(t *testing.T) { + var rsp pb.RouteResponse + err := h.Route(context.Background(), &pb.RouteRequest{ + Origin: tc.Origin, Destination: tc.Destination, + }, &rsp) + + assert.Equal(t, tc.Error, err) + if err != nil { + return + } + + // check the right info was sent to google maps + if tc.Origin != nil && tc.Origin.Latitude != nil { + assert.Equal(t, fmt.Sprintf("%v", tc.Origin.Latitude.Value), oLat) + } + if tc.Origin != nil && tc.Origin.Longitude != nil { + assert.Equal(t, fmt.Sprintf("%v", tc.Origin.Longitude.Value), oLng) + } + if tc.Destination != nil && tc.Destination.Latitude != nil { + assert.Equal(t, fmt.Sprintf("%v", tc.Destination.Latitude.Value), dLat) + } + if tc.Destination != nil && tc.Destination.Longitude != nil { + assert.Equal(t, fmt.Sprintf("%v", tc.Destination.Longitude.Value), dLng) + } + + // check the response is correct + if len(tc.Result) != len(rsp.Waypoints) { + t.Errorf("Incorrect number of waypoints returned, expected %v got %v", len(tc.Result), len(rsp.Waypoints)) + } + for i, p := range tc.Result { + w := rsp.Waypoints[i] + assert.Equal(t, p.Latitude.Value, w.Latitude.Value) + assert.Equal(t, p.Longitude.Value, w.Longitude.Value) + } + }) + } + +} diff --git a/routing/main.go b/routing/main.go new file mode 100644 index 0000000..78d03c1 --- /dev/null +++ b/routing/main.go @@ -0,0 +1,41 @@ +package main + +import ( + "github.com/micro/services/routing/handler" + pb "github.com/micro/services/routing/proto" + + "github.com/micro/micro/v3/service" + "github.com/micro/micro/v3/service/config" + "github.com/micro/micro/v3/service/logger" + "googlemaps.github.io/maps" +) + +func main() { + // Create service + srv := service.New( + service.Name("routing"), + service.Version("latest"), + ) + + // Setup google maps + c, err := config.Get("google.apikey") + if err != nil { + logger.Fatalf("Error loading config: %v", err) + } + apiKey := c.String("") + if len(apiKey) == 0 { + logger.Fatalf("Missing required config: google.apikey") + } + m, err := maps.NewClient(maps.WithAPIKey(apiKey)) + if err != nil { + logger.Fatalf("Error configuring google maps client: %v", err) + } + + // Register handler + pb.RegisterRoutingHandler(srv.Server(), &handler.Routing{m}) + + // Run service + if err := srv.Run(); err != nil { + logger.Fatal(err) + } +} diff --git a/routing/proto/routing.pb.go b/routing/proto/routing.pb.go new file mode 100644 index 0000000..501e774 --- /dev/null +++ b/routing/proto/routing.pb.go @@ -0,0 +1,314 @@ +// Code generated by protoc-gen-go. DO NOT EDIT. +// versions: +// protoc-gen-go v1.23.0 +// protoc v3.13.0 +// source: proto/routing.proto + +package routing + +import ( + proto "github.com/golang/protobuf/proto" + wrappers "github.com/golang/protobuf/ptypes/wrappers" + protoreflect "google.golang.org/protobuf/reflect/protoreflect" + protoimpl "google.golang.org/protobuf/runtime/protoimpl" + reflect "reflect" + sync "sync" +) + +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 Point struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + Latitude *wrappers.DoubleValue `protobuf:"bytes,1,opt,name=latitude,proto3" json:"latitude,omitempty"` + Longitude *wrappers.DoubleValue `protobuf:"bytes,2,opt,name=longitude,proto3" json:"longitude,omitempty"` +} + +func (x *Point) Reset() { + *x = Point{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_routing_proto_msgTypes[0] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *Point) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*Point) ProtoMessage() {} + +func (x *Point) ProtoReflect() protoreflect.Message { + mi := &file_proto_routing_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 Point.ProtoReflect.Descriptor instead. +func (*Point) Descriptor() ([]byte, []int) { + return file_proto_routing_proto_rawDescGZIP(), []int{0} +} + +func (x *Point) GetLatitude() *wrappers.DoubleValue { + if x != nil { + return x.Latitude + } + return nil +} + +func (x *Point) GetLongitude() *wrappers.DoubleValue { + if x != nil { + return x.Longitude + } + return nil +} + +type RouteRequest struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + Origin *Point `protobuf:"bytes,1,opt,name=origin,proto3" json:"origin,omitempty"` + Destination *Point `protobuf:"bytes,2,opt,name=destination,proto3" json:"destination,omitempty"` +} + +func (x *RouteRequest) Reset() { + *x = RouteRequest{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_routing_proto_msgTypes[1] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *RouteRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*RouteRequest) ProtoMessage() {} + +func (x *RouteRequest) ProtoReflect() protoreflect.Message { + mi := &file_proto_routing_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 RouteRequest.ProtoReflect.Descriptor instead. +func (*RouteRequest) Descriptor() ([]byte, []int) { + return file_proto_routing_proto_rawDescGZIP(), []int{1} +} + +func (x *RouteRequest) GetOrigin() *Point { + if x != nil { + return x.Origin + } + return nil +} + +func (x *RouteRequest) GetDestination() *Point { + if x != nil { + return x.Destination + } + return nil +} + +type RouteResponse struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + Waypoints []*Point `protobuf:"bytes,1,rep,name=waypoints,proto3" json:"waypoints,omitempty"` +} + +func (x *RouteResponse) Reset() { + *x = RouteResponse{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_routing_proto_msgTypes[2] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *RouteResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*RouteResponse) ProtoMessage() {} + +func (x *RouteResponse) ProtoReflect() protoreflect.Message { + mi := &file_proto_routing_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 RouteResponse.ProtoReflect.Descriptor instead. +func (*RouteResponse) Descriptor() ([]byte, []int) { + return file_proto_routing_proto_rawDescGZIP(), []int{2} +} + +func (x *RouteResponse) GetWaypoints() []*Point { + if x != nil { + return x.Waypoints + } + return nil +} + +var File_proto_routing_proto protoreflect.FileDescriptor + +var file_proto_routing_proto_rawDesc = []byte{ + 0x0a, 0x13, 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protoimpl.X.CompressGZIP(file_proto_routing_proto_rawDescData) + }) + return file_proto_routing_proto_rawDescData +} + +var file_proto_routing_proto_msgTypes = make([]protoimpl.MessageInfo, 3) +var file_proto_routing_proto_goTypes = []interface{}{ + (*Point)(nil), // 0: routing.Point + (*RouteRequest)(nil), // 1: routing.RouteRequest + (*RouteResponse)(nil), // 2: routing.RouteResponse + (*wrappers.DoubleValue)(nil), // 3: google.protobuf.DoubleValue +} +var file_proto_routing_proto_depIdxs = []int32{ + 3, // 0: routing.Point.latitude:type_name -> google.protobuf.DoubleValue + 3, // 1: routing.Point.longitude:type_name -> google.protobuf.DoubleValue + 0, // 2: routing.RouteRequest.origin:type_name -> routing.Point + 0, // 3: routing.RouteRequest.destination:type_name -> routing.Point + 0, // 4: routing.RouteResponse.waypoints:type_name -> routing.Point + 1, // 5: routing.Routing.Route:input_type -> routing.RouteRequest + 2, // 6: routing.Routing.Route:output_type -> routing.RouteResponse + 6, // [6:7] is the sub-list for method output_type + 5, // [5:6] is the sub-list for method input_type + 5, // [5:5] is the sub-list for extension type_name + 5, // [5:5] is the sub-list for extension extendee + 0, // [0:5] is the sub-list for field type_name +} + +func init() { file_proto_routing_proto_init() } +func file_proto_routing_proto_init() { + if File_proto_routing_proto != nil { + return + } + if !protoimpl.UnsafeEnabled { + file_proto_routing_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*Point); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_proto_routing_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*RouteRequest); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_proto_routing_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*RouteResponse); 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_routing_proto_rawDesc, + NumEnums: 0, + NumMessages: 3, + NumExtensions: 0, + NumServices: 1, + }, + GoTypes: file_proto_routing_proto_goTypes, + DependencyIndexes: file_proto_routing_proto_depIdxs, + MessageInfos: file_proto_routing_proto_msgTypes, + }.Build() + File_proto_routing_proto = out.File + file_proto_routing_proto_rawDesc = nil + file_proto_routing_proto_goTypes = nil + file_proto_routing_proto_depIdxs = nil +} diff --git a/routing/proto/routing.pb.micro.go b/routing/proto/routing.pb.micro.go new file mode 100644 index 0000000..16359ff --- /dev/null +++ b/routing/proto/routing.pb.micro.go @@ -0,0 +1,94 @@ +// Code generated by protoc-gen-micro. DO NOT EDIT. +// source: proto/routing.proto + +package routing + +import ( + fmt "fmt" + proto "github.com/golang/protobuf/proto" + _ "github.com/golang/protobuf/ptypes/wrappers" + 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 Routing service + +func NewRoutingEndpoints() []*api.Endpoint { + return []*api.Endpoint{} +} + +// Client API for Routing service + +type RoutingService interface { + Route(ctx context.Context, in *RouteRequest, opts ...client.CallOption) (*RouteResponse, error) +} + +type routingService struct { + c client.Client + name string +} + +func NewRoutingService(name string, c client.Client) RoutingService { + return &routingService{ + c: c, + name: name, + } +} + +func (c *routingService) Route(ctx context.Context, in *RouteRequest, opts ...client.CallOption) (*RouteResponse, error) { + req := c.c.NewRequest(c.name, "Routing.Route", in) + out := new(RouteResponse) + err := c.c.Call(ctx, req, out, opts...) + if err != nil { + return nil, err + } + return out, nil +} + +// Server API for Routing service + +type RoutingHandler interface { + Route(context.Context, *RouteRequest, *RouteResponse) error +} + +func RegisterRoutingHandler(s server.Server, hdlr RoutingHandler, opts ...server.HandlerOption) error { + type routing interface { + Route(ctx context.Context, in *RouteRequest, out *RouteResponse) error + } + type Routing struct { + routing + } + h := &routingHandler{hdlr} + return s.Handle(s.NewHandler(&Routing{h}, opts...)) +} + +type routingHandler struct { + RoutingHandler +} + +func (h *routingHandler) Route(ctx context.Context, in *RouteRequest, out *RouteResponse) error { + return h.RoutingHandler.Route(ctx, in, out) +} diff --git a/routing/proto/routing.proto b/routing/proto/routing.proto new file mode 100644 index 0000000..fde7762 --- /dev/null +++ b/routing/proto/routing.proto @@ -0,0 +1,22 @@ +syntax = "proto3"; + +package routing; +import "google/protobuf/wrappers.proto"; + +service Routing { + rpc Route(RouteRequest) returns (RouteResponse) {} +} + +message Point { + google.protobuf.DoubleValue latitude = 1; + google.protobuf.DoubleValue longitude = 2; +} + +message RouteRequest { + Point origin = 1; + Point destination = 2; +} + +message RouteResponse { + repeated Point waypoints = 1; +} \ No newline at end of file