add stock history

stock/examples.json

@@ -25,5 +25,21 @@
             "bid_size": 4,
             "timestamp": "2021-06-18T13:49:23.678Z"
         }
+    }],
+    "history": [{
+        "title": "Get historic data",
+        "description": "Returns historic stock data for a given date",
+        "request": {
+            "symbol": "AAPL",
+            "date": "2020-10-01"
+        },
+        "response": {
+            "symbol": "AAPL",
+            "open": 117.64,
+            "close": 116.79,
+            "high": 117.72,
+            "low": 115.83,
+            "date": "2020-10-01"
+        }
     }]
 }

stock/handler/stock.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net/http"
+	"regexp"
 	"time"
 
 	"github.com/patrickmn/go-cache"
@@ -14,6 +15,11 @@ import (
 	pb "github.com/micro/services/stock/proto"
 )
 
+var (
+        re = regexp.MustCompile(`\d{4}-\d{2}-\d{2}`)
+)
+
+
 type Stock struct{
 	Api string
 	Key string
@@ -29,6 +35,57 @@ type Quote struct {
 	Timestamp int64
 }
 
+type History struct {
+	Symbol string
+	Open float64
+	High float64
+	Low float64
+	Close float64
+	Volume int32
+	From string
+}
+
+func (s *Stock) History(ctx context.Context, req *pb.HistoryRequest, rsp *pb.HistoryResponse) error {
+	if len(req.Stock) < 0 || len(req.Stock) > 5 {
+		return errors.BadRequest("stock.history", "invalid symbol")
+	}
+
+	if !re.MatchString(req.Date) {
+		return errors.BadRequest("stock.history", "invalid date")
+	}
+
+	uri := fmt.Sprintf("%shistory/stock/open-close?stock=%s&date=%s&apikey=%s", s.Api, req.Stock, req.Date, s.Key)
+
+        resp, err := http.Get(uri)
+        if err != nil {
+                logger.Errorf("Failed to get history: %v\n", err)
+                return errors.InternalServerError("stock.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("stock.history", "failed to get history")
+        }
+
+        var respBody History
+
+        if err := json.Unmarshal(b, &respBody); err != nil {
+                logger.Errorf("Failed to unmarshal history: %v\n", err)
+                return errors.InternalServerError("stock.history", "failed to get history")
+        }
+
+	rsp.Symbol = respBody.Symbol
+	rsp.Open = respBody.Open
+	rsp.Close = respBody.Close
+	rsp.High = respBody.High
+	rsp.Low = respBody.Low
+	rsp.Date = respBody.From
+
+	return nil
+}
 func (s *Stock) Quote(ctx context.Context, req *pb.QuoteRequest, rsp *pb.QuoteResponse) error {
 	if len(req.Symbol) < 0 || len(req.Symbol) > 5 {
 		return errors.BadRequest("stock.quote", "invalid symbol")

stock/proto/stock.pb.go

@@ -268,6 +268,166 @@ func (x *QuoteResponse) GetTimestamp() string {
 	return ""
 }
 
+// Get the historic open-close for a given day
+type HistoryRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// the stock symbol e.g AAPL
+	Stock string `protobuf:"bytes,1,opt,name=stock,proto3" json:"stock,omitempty"`
+	// date to retrieve as YYYY-MM-DD
+	Date string `protobuf:"bytes,2,opt,name=date,proto3" json:"date,omitempty"`
+}
+
+func (x *HistoryRequest) Reset() {
+	*x = HistoryRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_stock_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_stock_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_stock_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *HistoryRequest) GetStock() string {
+	if x != nil {
+		return x.Stock
+	}
+	return ""
+}
+
+func (x *HistoryRequest) GetDate() string {
+	if x != nil {
+		return x.Date
+	}
+	return ""
+}
+
+type HistoryResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// the stock 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 int32 `protobuf:"varint,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_stock_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_stock_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_stock_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
+}
+
+func (x *HistoryResponse) GetVolume() int32 {
+	if x != nil {
+		return x.Volume
+	}
+	return 0
+}
+
+func (x *HistoryResponse) GetDate() string {
+	if x != nil {
+		return x.Date
+	}
+	return ""
+}
+
 var File_proto_stock_proto protoreflect.FileDescriptor
 
 var file_proto_stock_proto_rawDesc = []byte{
@@ -293,15 +453,33 @@ var file_proto_stock_proto_rawDesc = []byte{
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 }
 
 var (
@@ -316,20 +494,24 @@ func file_proto_stock_proto_rawDescGZIP() []byte {
 	return file_proto_stock_proto_rawDescData
 }
 
-var file_proto_stock_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_proto_stock_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
 var file_proto_stock_proto_goTypes = []interface{}{
-	(*PriceRequest)(nil),  // 0: stock.PriceRequest
+	(*PriceRequest)(nil),    // 0: stock.PriceRequest
-	(*PriceResponse)(nil), // 1: stock.PriceResponse
+	(*PriceResponse)(nil),   // 1: stock.PriceResponse
-	(*QuoteRequest)(nil),  // 2: stock.QuoteRequest
+	(*QuoteRequest)(nil),    // 2: stock.QuoteRequest
-	(*QuoteResponse)(nil), // 3: stock.QuoteResponse
+	(*QuoteResponse)(nil),   // 3: stock.QuoteResponse
+	(*HistoryRequest)(nil),  // 4: stock.HistoryRequest
+	(*HistoryResponse)(nil), // 5: stock.HistoryResponse
 }
 var file_proto_stock_proto_depIdxs = []int32{
 	2, // 0: stock.Stock.Quote:input_type -> stock.QuoteRequest
 	0, // 1: stock.Stock.Price:input_type -> stock.PriceRequest
-	3, // 2: stock.Stock.Quote:output_type -> stock.QuoteResponse
+	4, // 2: stock.Stock.History:input_type -> stock.HistoryRequest
-	1, // 3: stock.Stock.Price:output_type -> stock.PriceResponse
+	3, // 3: stock.Stock.Quote:output_type -> stock.QuoteResponse
-	2, // [2:4] is the sub-list for method output_type
+	1, // 4: stock.Stock.Price:output_type -> stock.PriceResponse
-	0, // [0:2] is the sub-list for method input_type
+	5, // 5: stock.Stock.History:output_type -> stock.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
@@ -389,6 +571,30 @@ func file_proto_stock_proto_init() {
 				return nil
 			}
 		}
+		file_proto_stock_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_stock_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{
@@ -396,7 +602,7 @@ func file_proto_stock_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_stock_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   4,
+			NumMessages:   6,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

stock/proto/stock.pb.micro.go

@@ -44,6 +44,7 @@ func NewStockEndpoints() []*api.Endpoint {
 type StockService 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 stockService struct {
@@ -78,17 +79,29 @@ func (c *stockService) Price(ctx context.Context, in *PriceRequest, opts ...clie
 	return out, nil
 }
 
+func (c *stockService) History(ctx context.Context, in *HistoryRequest, opts ...client.CallOption) (*HistoryResponse, error) {
+	req := c.c.NewRequest(c.name, "Stock.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 Stock service
 
 type StockHandler interface {
 	Quote(context.Context, *QuoteRequest, *QuoteResponse) error
 	Price(context.Context, *PriceRequest, *PriceResponse) error
+	History(context.Context, *HistoryRequest, *HistoryResponse) error
 }
 
 func RegisterStockHandler(s server.Server, hdlr StockHandler, opts ...server.HandlerOption) error {
 	type stock 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 Stock struct {
 		stock
@@ -108,3 +121,7 @@ func (h *stockHandler) Quote(ctx context.Context, in *QuoteRequest, out *QuoteRe
 func (h *stockHandler) Price(ctx context.Context, in *PriceRequest, out *PriceResponse) error {
 	return h.StockHandler.Price(ctx, in, out)
 }
+
+func (h *stockHandler) History(ctx context.Context, in *HistoryRequest, out *HistoryResponse) error {
+	return h.StockHandler.History(ctx, in, out)
+}

stock/proto/stock.proto

@@ -7,6 +7,7 @@ option go_package = "./proto;stock";
 service Stock {
 	rpc Quote(QuoteRequest) returns (QuoteResponse) {}
 	rpc Price(PriceRequest) returns (PriceResponse) {}
+	rpc History(HistoryRequest) returns (HistoryResponse) {}
 }
 
 // Get the last price for a given stock ticker
@@ -43,3 +44,28 @@ message QuoteResponse {
 	string timestamp = 6;
 }
 
+
+// Get the historic open-close for a given day
+message HistoryRequest {
+	// the stock symbol e.g AAPL
+	string stock = 1;
+	// date to retrieve as YYYY-MM-DD
+	string date = 2;
+}
+
+message HistoryResponse {
+	// the stock 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
+	int32 volume = 6;
+	// the date
+	string date = 7;
+}