From 552e035e573d9cd841f266ef0ec71a87b24a08e4 Mon Sep 17 00:00:00 2001 From: Asim Aslam Date: Mon, 21 Jun 2021 10:01:05 +0100 Subject: [PATCH] add forex api --- forex/.gitignore | 2 + forex/Dockerfile | 3 + forex/Makefile | 28 ++ forex/README.md | 9 + forex/generate.go | 2 + forex/handler/forex.go | 190 +++++++++++ forex/main.go | 24 ++ forex/micro.mu | 1 + forex/proto/forex.pb.go | 586 ++++++++++++++++++++++++++++++++++ forex/proto/forex.pb.micro.go | 127 ++++++++ forex/proto/forex.proto | 65 ++++ forex/publicapi.json | 10 + 12 files changed, 1047 insertions(+) create mode 100644 forex/.gitignore create mode 100644 forex/Dockerfile create mode 100644 forex/Makefile create mode 100644 forex/README.md create mode 100644 forex/generate.go create mode 100644 forex/handler/forex.go create mode 100644 forex/main.go create mode 100644 forex/micro.mu create mode 100644 forex/proto/forex.pb.go create mode 100644 forex/proto/forex.pb.micro.go create mode 100644 forex/proto/forex.proto create mode 100644 forex/publicapi.json diff --git a/forex/.gitignore b/forex/.gitignore new file mode 100644 index 0000000..4b5d779 --- /dev/null +++ b/forex/.gitignore @@ -0,0 +1,2 @@ + +forex diff --git a/forex/Dockerfile b/forex/Dockerfile new file mode 100644 index 0000000..8d12fe1 --- /dev/null +++ b/forex/Dockerfile @@ -0,0 +1,3 @@ +FROM alpine +ADD forex /forex +ENTRYPOINT [ "/forex" ] diff --git a/forex/Makefile b/forex/Makefile new file mode 100644 index 0000000..888d578 --- /dev/null +++ b/forex/Makefile @@ -0,0 +1,28 @@ + +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 + go get github.com/micro/micro/v3/cmd/protoc-gen-openapi + +.PHONY: api +api: + protoc --openapi_out=. --proto_path=. proto/forex.proto + +.PHONY: proto +proto: + protoc --proto_path=. --micro_out=. --go_out=:. proto/forex.proto + +.PHONY: build +build: + go build -o forex *.go + +.PHONY: test +test: + go test -v ./... -cover + +.PHONY: docker +docker: + docker build . -t forex:latest diff --git a/forex/README.md b/forex/README.md new file mode 100644 index 0000000..b2b8fec --- /dev/null +++ b/forex/README.md @@ -0,0 +1,9 @@ + +Foreign Exchange (FX) rates + +# Forex Service + +Real-time and Historical Foreign Exchange (FX) rates from over 200 world currencies. + +Powered by [Finage](https://finage.co.uk) + diff --git a/forex/generate.go b/forex/generate.go new file mode 100644 index 0000000..96f431a --- /dev/null +++ b/forex/generate.go @@ -0,0 +1,2 @@ +package main +//go:generate make proto diff --git a/forex/handler/forex.go b/forex/handler/forex.go new file mode 100644 index 0000000..364cf8c --- /dev/null +++ b/forex/handler/forex.go @@ -0,0 +1,190 @@ +package handler + +import ( + "context" + "encoding/json" + "fmt" + "io/ioutil" + "net/http" + "regexp" + "time" + + "github.com/micro/micro/v3/service/config" + "github.com/micro/micro/v3/service/errors" + "github.com/micro/micro/v3/service/logger" + pb "github.com/micro/services/forex/proto" + "github.com/patrickmn/go-cache" +) + +var ( + re = regexp.MustCompile(`\d{4}-\d{2}-\d{2}`) +) + +type Forex struct { + Api string + Key string + Cache *cache.Cache +} + +type Quote struct { + Symbol string + Ask float64 + Bid float64 + Asize float64 + Bsize float64 + Timestamp float64 +} + +type History struct { + Open float64 `json:"o"` + High float64 `json:"h"` + Low float64 `json:"l"` + Close float64 `json:"c"` + Volume float64 `json:"v"` + Timestamp float64 `json:"t"` +} + +type Previous struct { + Symbol string + TotalResults int32 + Results []*History +} + +func New() *Forex { + // TODO: look for "forex.provider" to determine the handler + v, err := config.Get("finage.api") + if err != nil { + logger.Fatalf("finage.api config not found: %v", err) + } + api := v.String("") + if len(api) == 0 { + logger.Fatal("finage.api config not found") + } + v, err = config.Get("finage.key") + if err != nil { + logger.Fatalf("finage.key config not found: %v", err) + } + key := v.String("") + if len(key) == 0 { + logger.Fatal("finage.key config not found") + } + + return &Forex{ + Api: api, + Key: key, + Cache: cache.New(5*time.Minute, 10*time.Minute), + } +} + +func (s *Forex) History(ctx context.Context, req *pb.HistoryRequest, rsp *pb.HistoryResponse) error { + if len(req.Symbol) <= 0 { + return errors.BadRequest("forex.history", "invalid symbol") + } + + uri := fmt.Sprintf("%sagg/forex/prev-close/%s?apikey=%s", s.Api, req.Symbol, s.Key) + + resp, err := http.Get(uri) + if err != nil { + logger.Errorf("Failed to get history: %v\n", err) + return errors.InternalServerError("forex.history", "failed to get history") + } + defer resp.Body.Close() + + b, _ := ioutil.ReadAll(resp.Body) + + if resp.StatusCode != 200 { + logger.Errorf("Failed to get history (non 200): %d %v\n", resp.StatusCode, string(b)) + return errors.InternalServerError("forex.history", "failed to get history") + } + + var respBody Previous + + if err := json.Unmarshal(b, &respBody); err != nil { + logger.Errorf("Failed to unmarshal history: %v\n", err) + return errors.InternalServerError("forex.history", "failed to get history") + } + + if len(respBody.Results) != 1 { + return nil + } + + res := respBody.Results[0] + rsp.Symbol = req.Symbol + rsp.Open = res.Open + rsp.Close = res.Close + rsp.High = res.High + rsp.Low = res.Low + rsp.Date = time.Unix(0, int64(res.Timestamp)*int64(time.Millisecond)).UTC().Format("2006-01-02") + rsp.Volume = res.Volume + + return nil +} +func (s *Forex) Quote(ctx context.Context, req *pb.QuoteRequest, rsp *pb.QuoteResponse) error { + if len(req.Symbol) <= 0 { + return errors.BadRequest("forex.quote", "invalid symbol") + } + + uri := fmt.Sprintf("%slast/forex/%s?apikey=%s", s.Api, req.Symbol, s.Key) + + resp, err := http.Get(uri) + if err != nil { + logger.Errorf("Failed to get quote: %v\n", err) + return errors.InternalServerError("forex.quote", "failed to get quote") + } + defer resp.Body.Close() + + b, _ := ioutil.ReadAll(resp.Body) + + if resp.StatusCode != 200 { + logger.Errorf("Failed to get quote (non 200): %d %v\n", resp.StatusCode, string(b)) + return errors.InternalServerError("forex.quote", "failed to get quote") + } + + var respBody Quote + + if err := json.Unmarshal(b, &respBody); err != nil { + logger.Errorf("Failed to unmarshal quote: %v\n", err) + return errors.InternalServerError("forex.quote", "failed to get quote") + } + + rsp.Symbol = respBody.Symbol + rsp.AskPrice = respBody.Ask + rsp.BidPrice = respBody.Bid + rsp.Timestamp = time.Unix(0, int64(respBody.Timestamp)*int64(time.Millisecond)).UTC().Format(time.RFC3339Nano) + + return nil +} + +func (s *Forex) Price(ctx context.Context, req *pb.PriceRequest, rsp *pb.PriceResponse) error { + if len(req.Symbol) <= 0 { + return errors.BadRequest("forex.price", "invalid symbol") + } + + uri := fmt.Sprintf("%slast/trade/forex/%s?apikey=%s", s.Api, req.Symbol, s.Key) + + resp, err := http.Get(uri) + if err != nil { + logger.Errorf("Failed to get price: %v\n", err) + return errors.InternalServerError("forex.trade", "failed to get price") + } + defer resp.Body.Close() + + b, _ := ioutil.ReadAll(resp.Body) + + if resp.StatusCode != 200 { + logger.Errorf("Failed to get price (non 200): %d %v\n", resp.StatusCode, string(b)) + return errors.InternalServerError("forex.quote", "failed to get price") + } + + var respBody map[string]interface{} + + if err := json.Unmarshal(b, &respBody); err != nil { + logger.Errorf("Failed to unmarshal price: %v\n", err) + return errors.InternalServerError("forex.price", "failed to get price") + } + + rsp.Symbol = req.Symbol + rsp.Price = respBody["price"].(float64) + + return nil +} diff --git a/forex/main.go b/forex/main.go new file mode 100644 index 0000000..994ec24 --- /dev/null +++ b/forex/main.go @@ -0,0 +1,24 @@ +package main + +import ( + "github.com/micro/micro/v3/service" + "github.com/micro/micro/v3/service/logger" + "github.com/micro/services/forex/handler" + pb "github.com/micro/services/forex/proto" +) + +func main() { + // Create service + srv := service.New( + service.Name("forex"), + service.Version("latest"), + ) + + // Register handler + pb.RegisterForexHandler(srv.Server(), handler.New()) + + // Run service + if err := srv.Run(); err != nil { + logger.Fatal(err) + } +} diff --git a/forex/micro.mu b/forex/micro.mu new file mode 100644 index 0000000..f971548 --- /dev/null +++ b/forex/micro.mu @@ -0,0 +1 @@ +service forex diff --git a/forex/proto/forex.pb.go b/forex/proto/forex.pb.go new file mode 100644 index 0000000..982c36f --- /dev/null +++ b/forex/proto/forex.pb.go @@ -0,0 +1,586 @@ +// Code generated by protoc-gen-go. DO NOT EDIT. +// versions: +// protoc-gen-go v1.26.0 +// protoc v3.15.6 +// source: proto/forex.proto + +package forex + +import ( + 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) +) + +// Get the last price for a given forex ticker +type PriceRequest struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // forex symbol e.g GBPUSD + Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"` +} + +func (x *PriceRequest) Reset() { + *x = PriceRequest{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_forex_proto_msgTypes[0] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *PriceRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PriceRequest) ProtoMessage() {} + +func (x *PriceRequest) ProtoReflect() protoreflect.Message { + mi := &file_proto_forex_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 PriceRequest.ProtoReflect.Descriptor instead. +func (*PriceRequest) Descriptor() ([]byte, []int) { + return file_proto_forex_proto_rawDescGZIP(), []int{0} +} + +func (x *PriceRequest) GetSymbol() string { + if x != nil { + return x.Symbol + } + return "" +} + +type PriceResponse struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // the forex symbol e.g GBPUSD + Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"` + // the last price + Price float64 `protobuf:"fixed64,2,opt,name=price,proto3" json:"price,omitempty"` +} + +func (x *PriceResponse) Reset() { + *x = PriceResponse{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_forex_proto_msgTypes[1] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *PriceResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PriceResponse) ProtoMessage() {} + +func (x *PriceResponse) ProtoReflect() protoreflect.Message { + mi := &file_proto_forex_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 PriceResponse.ProtoReflect.Descriptor instead. +func (*PriceResponse) Descriptor() ([]byte, []int) { + return file_proto_forex_proto_rawDescGZIP(), []int{1} +} + +func (x *PriceResponse) GetSymbol() string { + if x != nil { + return x.Symbol + } + return "" +} + +func (x *PriceResponse) GetPrice() float64 { + if x != nil { + return x.Price + } + return 0 +} + +// Get the last quote for the forex +type QuoteRequest struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // the forex symbol e.g GBPUSD + Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"` +} + +func (x *QuoteRequest) Reset() { + *x = QuoteRequest{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_forex_proto_msgTypes[2] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *QuoteRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*QuoteRequest) ProtoMessage() {} + +func (x *QuoteRequest) ProtoReflect() protoreflect.Message { + mi := &file_proto_forex_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 QuoteRequest.ProtoReflect.Descriptor instead. +func (*QuoteRequest) Descriptor() ([]byte, []int) { + return file_proto_forex_proto_rawDescGZIP(), []int{2} +} + +func (x *QuoteRequest) GetSymbol() string { + if x != nil { + return x.Symbol + } + return "" +} + +type QuoteResponse struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // the forex symbol + Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"` + // the asking price + AskPrice float64 `protobuf:"fixed64,2,opt,name=ask_price,json=askPrice,proto3" json:"ask_price,omitempty"` + // the bidding price + BidPrice float64 `protobuf:"fixed64,3,opt,name=bid_price,json=bidPrice,proto3" json:"bid_price,omitempty"` + // the UTC timestamp of the quote + Timestamp string `protobuf:"bytes,4,opt,name=timestamp,proto3" json:"timestamp,omitempty"` +} + +func (x *QuoteResponse) Reset() { + *x = QuoteResponse{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_forex_proto_msgTypes[3] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *QuoteResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*QuoteResponse) ProtoMessage() {} + +func (x *QuoteResponse) ProtoReflect() protoreflect.Message { + mi := &file_proto_forex_proto_msgTypes[3] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use QuoteResponse.ProtoReflect.Descriptor instead. +func (*QuoteResponse) Descriptor() ([]byte, []int) { + return file_proto_forex_proto_rawDescGZIP(), []int{3} +} + +func (x *QuoteResponse) GetSymbol() string { + if x != nil { + return x.Symbol + } + return "" +} + +func (x *QuoteResponse) GetAskPrice() float64 { + if x != nil { + return x.AskPrice + } + return 0 +} + +func (x *QuoteResponse) GetBidPrice() float64 { + if x != nil { + return x.BidPrice + } + return 0 +} + +func (x *QuoteResponse) GetTimestamp() string { + if x != nil { + return x.Timestamp + } + return "" +} + +// Returns the data for the previous close +type HistoryRequest struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // the forex symbol e.g GBPUSD + Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"` +} + +func (x *HistoryRequest) Reset() { + *x = HistoryRequest{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_forex_proto_msgTypes[4] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *HistoryRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*HistoryRequest) ProtoMessage() {} + +func (x *HistoryRequest) ProtoReflect() protoreflect.Message { + mi := &file_proto_forex_proto_msgTypes[4] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use HistoryRequest.ProtoReflect.Descriptor instead. +func (*HistoryRequest) Descriptor() ([]byte, []int) { + return file_proto_forex_proto_rawDescGZIP(), []int{4} +} + +func (x *HistoryRequest) GetSymbol() string { + if x != nil { + return x.Symbol + } + return "" +} + +type HistoryResponse struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // the forex symbol + Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"` + // the open price + Open float64 `protobuf:"fixed64,2,opt,name=open,proto3" json:"open,omitempty"` + // the close price + Close float64 `protobuf:"fixed64,3,opt,name=close,proto3" json:"close,omitempty"` + // the peak price + High float64 `protobuf:"fixed64,4,opt,name=high,proto3" json:"high,omitempty"` + // the low price + Low float64 `protobuf:"fixed64,5,opt,name=low,proto3" json:"low,omitempty"` + // the volume + Volume float64 `protobuf:"fixed64,6,opt,name=volume,proto3" json:"volume,omitempty"` + // the date + Date string `protobuf:"bytes,7,opt,name=date,proto3" json:"date,omitempty"` +} + +func (x *HistoryResponse) Reset() { + *x = HistoryResponse{} + if protoimpl.UnsafeEnabled { + mi := &file_proto_forex_proto_msgTypes[5] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *HistoryResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*HistoryResponse) ProtoMessage() {} + +func (x *HistoryResponse) ProtoReflect() protoreflect.Message { + mi := &file_proto_forex_proto_msgTypes[5] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use HistoryResponse.ProtoReflect.Descriptor instead. +func (*HistoryResponse) Descriptor() ([]byte, []int) { + return file_proto_forex_proto_rawDescGZIP(), []int{5} +} + +func (x *HistoryResponse) GetSymbol() string { + if x != nil { + return x.Symbol + } + return "" +} + +func (x *HistoryResponse) GetOpen() float64 { + if x != nil { + return x.Open + } + return 0 +} + +func (x *HistoryResponse) GetClose() float64 { + if x != nil { + return x.Close + } + return 0 +} + +func (x *HistoryResponse) GetHigh() float64 { + if x != nil { + return x.High + } + return 0 +} + +func (x *HistoryResponse) GetLow() float64 { + if x != nil { + return x.Low + } + return 0 +} + 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protoimpl.X.CompressGZIP(file_proto_forex_proto_rawDescData) + }) + return file_proto_forex_proto_rawDescData +} + +var file_proto_forex_proto_msgTypes = make([]protoimpl.MessageInfo, 6) +var file_proto_forex_proto_goTypes = []interface{}{ + (*PriceRequest)(nil), // 0: forex.PriceRequest + (*PriceResponse)(nil), // 1: forex.PriceResponse + (*QuoteRequest)(nil), // 2: forex.QuoteRequest + (*QuoteResponse)(nil), // 3: forex.QuoteResponse + (*HistoryRequest)(nil), // 4: forex.HistoryRequest + (*HistoryResponse)(nil), // 5: forex.HistoryResponse +} +var file_proto_forex_proto_depIdxs = []int32{ + 2, // 0: forex.Forex.Quote:input_type -> forex.QuoteRequest + 0, // 1: forex.Forex.Price:input_type -> forex.PriceRequest + 4, // 2: forex.Forex.History:input_type -> forex.HistoryRequest + 3, // 3: forex.Forex.Quote:output_type -> forex.QuoteResponse + 1, // 4: forex.Forex.Price:output_type -> forex.PriceResponse + 5, // 5: forex.Forex.History:output_type -> forex.HistoryResponse + 3, // [3:6] is the sub-list for method output_type + 0, // [0:3] is the sub-list for method input_type + 0, // [0:0] is the sub-list for extension type_name + 0, // [0:0] is the sub-list for extension extendee + 0, // [0:0] is the sub-list for field type_name +} + +func init() { file_proto_forex_proto_init() } +func file_proto_forex_proto_init() { + if File_proto_forex_proto != nil { + return + } + if !protoimpl.UnsafeEnabled { + file_proto_forex_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*PriceRequest); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_proto_forex_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*PriceResponse); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_proto_forex_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*QuoteRequest); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_proto_forex_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*QuoteResponse); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_proto_forex_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*HistoryRequest); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_proto_forex_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*HistoryResponse); 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_forex_proto_rawDesc, + NumEnums: 0, + NumMessages: 6, + NumExtensions: 0, + NumServices: 1, + }, + GoTypes: file_proto_forex_proto_goTypes, + DependencyIndexes: file_proto_forex_proto_depIdxs, + MessageInfos: file_proto_forex_proto_msgTypes, + }.Build() + File_proto_forex_proto = out.File + file_proto_forex_proto_rawDesc = nil + file_proto_forex_proto_goTypes = nil + file_proto_forex_proto_depIdxs = nil +} diff --git a/forex/proto/forex.pb.micro.go b/forex/proto/forex.pb.micro.go new file mode 100644 index 0000000..37d1e4f --- /dev/null +++ b/forex/proto/forex.pb.micro.go @@ -0,0 +1,127 @@ +// Code generated by protoc-gen-micro. DO NOT EDIT. +// source: proto/forex.proto + +package forex + +import ( + fmt "fmt" + proto "github.com/golang/protobuf/proto" + 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 Forex service + +func NewForexEndpoints() []*api.Endpoint { + return []*api.Endpoint{} +} + +// Client API for Forex service + +type ForexService interface { + Quote(ctx context.Context, in *QuoteRequest, opts ...client.CallOption) (*QuoteResponse, error) + Price(ctx context.Context, in *PriceRequest, opts ...client.CallOption) (*PriceResponse, error) + History(ctx context.Context, in *HistoryRequest, opts ...client.CallOption) (*HistoryResponse, error) +} + +type forexService struct { + c client.Client + name string +} + +func NewForexService(name string, c client.Client) ForexService { + return &forexService{ + c: c, + name: name, + } +} + +func (c *forexService) Quote(ctx context.Context, in *QuoteRequest, opts ...client.CallOption) (*QuoteResponse, error) { + req := c.c.NewRequest(c.name, "Forex.Quote", in) + out := new(QuoteResponse) + err := c.c.Call(ctx, req, out, opts...) + if err != nil { + return nil, err + } + return out, nil +} + +func (c *forexService) Price(ctx context.Context, in *PriceRequest, opts ...client.CallOption) (*PriceResponse, error) { + req := c.c.NewRequest(c.name, "Forex.Price", in) + out := new(PriceResponse) + err := c.c.Call(ctx, req, out, opts...) + if err != nil { + return nil, err + } + return out, nil +} + +func (c *forexService) History(ctx context.Context, in *HistoryRequest, opts ...client.CallOption) (*HistoryResponse, error) { + req := c.c.NewRequest(c.name, "Forex.History", in) + out := new(HistoryResponse) + err := c.c.Call(ctx, req, out, opts...) + if err != nil { + return nil, err + } + return out, nil +} + +// Server API for Forex service + +type ForexHandler interface { + Quote(context.Context, *QuoteRequest, *QuoteResponse) error + Price(context.Context, *PriceRequest, *PriceResponse) error + History(context.Context, *HistoryRequest, *HistoryResponse) error +} + +func RegisterForexHandler(s server.Server, hdlr ForexHandler, opts ...server.HandlerOption) error { + type forex interface { + Quote(ctx context.Context, in *QuoteRequest, out *QuoteResponse) error + Price(ctx context.Context, in *PriceRequest, out *PriceResponse) error + History(ctx context.Context, in *HistoryRequest, out *HistoryResponse) error + } + type Forex struct { + forex + } + h := &forexHandler{hdlr} + return s.Handle(s.NewHandler(&Forex{h}, opts...)) +} + +type forexHandler struct { + ForexHandler +} + +func (h *forexHandler) Quote(ctx context.Context, in *QuoteRequest, out *QuoteResponse) error { + return h.ForexHandler.Quote(ctx, in, out) +} + +func (h *forexHandler) Price(ctx context.Context, in *PriceRequest, out *PriceResponse) error { + return h.ForexHandler.Price(ctx, in, out) +} + +func (h *forexHandler) History(ctx context.Context, in *HistoryRequest, out *HistoryResponse) error { + return h.ForexHandler.History(ctx, in, out) +} diff --git a/forex/proto/forex.proto b/forex/proto/forex.proto new file mode 100644 index 0000000..091c4b1 --- /dev/null +++ b/forex/proto/forex.proto @@ -0,0 +1,65 @@ +syntax = "proto3"; + +package forex; + +option go_package = "./proto;forex"; + +service Forex { + rpc Quote(QuoteRequest) returns (QuoteResponse) {} + rpc Price(PriceRequest) returns (PriceResponse) {} + rpc History(HistoryRequest) returns (HistoryResponse) {} +} + +// Get the last price for a given forex ticker +message PriceRequest { + // forex symbol e.g GBPUSD + string symbol = 1; +} + +message PriceResponse { + // the forex symbol e.g GBPUSD + string symbol = 1; + // the last price + double price = 2; +} + +// Get the last quote for the forex +message QuoteRequest { + // the forex symbol e.g GBPUSD + string symbol = 1; +} + +message QuoteResponse { + // the forex symbol + string symbol = 1; + // the asking price + double ask_price = 2; + // the bidding price + double bid_price = 3; + // the UTC timestamp of the quote + string timestamp = 4; +} + + +// Returns the data for the previous close +message HistoryRequest { + // the forex symbol e.g GBPUSD + string symbol = 1; +} + +message HistoryResponse { + // the forex symbol + string symbol = 1; + // the open price + double open = 2; + // the close price + double close = 3; + // the peak price + double high = 4; + // the low price + double low = 5; + // the volume + double volume = 6; + // the date + string date = 7; +} diff --git a/forex/publicapi.json b/forex/publicapi.json new file mode 100644 index 0000000..bb0828a --- /dev/null +++ b/forex/publicapi.json @@ -0,0 +1,10 @@ +{ + "name": "forex", + "icon": "💲", + "category": "money", + "pricing": { + "Forex.Price": 20, + "Forex.Quote": 20, + "Forex.History": 35 + } +}