add crypto/symbols refdata endpoint (#392)

crypto/examples.json

@@ -72,5 +72,29 @@
         "date": "2021-06-20"
       }
     }
+  ],
+  "symbols": [
+    {
+      "title": "Get list of all supported symbols",
+      "description": "Returns the full list of supported crypto symbols",
+      "request": {
+      },
+      "response": {
+        "symbols": [
+          {
+            "symbol": "BTCUSD",
+            "name": "Bitcoin - United States Dollar"
+          },
+          {
+            "symbol": "DOGEEUR",
+            "name": "Dogecoin - Euro"
+          },
+          {
+            "symbol": "ETHBTC",
+            "name": "Ethereum - Bitcoin"
+          }
+        ]
+      }
+    }
   ]
 }

crypto/handler/crypto.go

@@ -131,12 +131,12 @@ func (c *Crypto) News(ctx context.Context, req *pb.NewsRequest, rsp *pb.NewsResp
 	return nil
 }
 
-func (s *Crypto) History(ctx context.Context, req *pb.HistoryRequest, rsp *pb.HistoryResponse) error {
+func (c *Crypto) History(ctx context.Context, req *pb.HistoryRequest, rsp *pb.HistoryResponse) error {
 	if len(req.Symbol) <= 0 {
 		return errors.BadRequest("crypto.history", "invalid symbol")
 	}
 
-	uri := fmt.Sprintf("%sagg/crypto/prev-close/%s?apikey=%s", s.Api, req.Symbol, s.Key)
+	uri := fmt.Sprintf("%sagg/crypto/prev-close/%s?apikey=%s", c.Api, req.Symbol, c.Key)
 
 	resp, err := http.Get(uri)
 	if err != nil {
@@ -174,12 +174,12 @@ func (s *Crypto) History(ctx context.Context, req *pb.HistoryRequest, rsp *pb.Hi
 
 	return nil
 }
-func (s *Crypto) Quote(ctx context.Context, req *pb.QuoteRequest, rsp *pb.QuoteResponse) error {
+func (c *Crypto) Quote(ctx context.Context, req *pb.QuoteRequest, rsp *pb.QuoteResponse) error {
 	if len(req.Symbol) <= 0 {
 		return errors.BadRequest("crypto.quote", "invalid symbol")
 	}
 
-	uri := fmt.Sprintf("%slast/quote/crypto/%s?apikey=%s", s.Api, req.Symbol, s.Key)
+	uri := fmt.Sprintf("%slast/quote/crypto/%s?apikey=%s", c.Api, req.Symbol, c.Key)
 
 	resp, err := http.Get(uri)
 	if err != nil {
@@ -212,12 +212,12 @@ func (s *Crypto) Quote(ctx context.Context, req *pb.QuoteRequest, rsp *pb.QuoteR
 	return nil
 }
 
-func (s *Crypto) Price(ctx context.Context, req *pb.PriceRequest, rsp *pb.PriceResponse) error {
+func (c *Crypto) Price(ctx context.Context, req *pb.PriceRequest, rsp *pb.PriceResponse) error {
 	if len(req.Symbol) <= 0 {
 		return errors.BadRequest("crypto.price", "invalid symbol")
 	}
 
-	uri := fmt.Sprintf("%slast/crypto/%s?apikey=%s", s.Api, req.Symbol, s.Key)
+	uri := fmt.Sprintf("%slast/crypto/%s?apikey=%s", c.Api, req.Symbol, c.Key)
 
 	resp, err := http.Get(uri)
 	if err != nil {
@@ -245,3 +245,60 @@ func (s *Crypto) Price(ctx context.Context, req *pb.PriceRequest, rsp *pb.PriceR
 
 	return nil
 }
+
+func (c *Crypto) Symbols(ctx context.Context, req *pb.SymbolsRequest, rsp *pb.SymbolsResponse) error {
+	cached, ok := c.Cache.Get("symbolsCache")
+	if ok {
+		rsp.Symbols, _ = cached.([]*pb.Symbol)
+		return nil
+	}
+
+	toCache := []*pb.Symbol{}
+	page := 1
+	for {
+		var symbolsRsp struct {
+			Page      int32 `json:"page"`
+			TotalPage int32 `json:"totalPage"`
+			Symbols   []struct {
+				Symbol string `json:"symbol"`
+				Name   string `json:"name"`
+			} `json:"symbols"`
+		}
+
+		uri := fmt.Sprintf("%ssymbol-list/crypto?page=%d&apikey=%s", c.Api, page, c.Key)
+
+		resp, err := http.Get(uri)
+		if err != nil {
+			logger.Errorf("Failed to get price: %v\n", err)
+			return errors.InternalServerError("crypto.trade", "failed to get price")
+		}
+		defer resp.Body.Close()
+
+		b, _ := ioutil.ReadAll(resp.Body)
+		if resp.StatusCode != 200 {
+			logger.Errorf("Failed to load symbol list (non 200): %d %v\n", resp.StatusCode, string(b))
+			return errors.InternalServerError("crypto.symbols", "failed to get symbols")
+		}
+
+		if err := json.Unmarshal(b, &symbolsRsp); err != nil {
+			logger.Errorf("Error unmarshalling cyrpto symbols: %v\n", err)
+			return errors.InternalServerError("crypto.symbols", "failed to get symbols")
+		}
+
+		for _, v := range symbolsRsp.Symbols {
+			toCache = append(toCache, &pb.Symbol{
+				Symbol: v.Symbol,
+				Name:   v.Name,
+			})
+		}
+
+		if symbolsRsp.Page == symbolsRsp.TotalPage {
+			break
+		}
+		page++
+	}
+	c.Cache.Set("symbolsCache", toCache, 24*time.Hour)
+	rsp.Symbols = toCache
+	return nil
+
+}

crypto/proto/crypto.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.6
+// 	protoc        v3.15.5
 // source: proto/crypto.proto
 
 package crypto
@@ -110,7 +110,7 @@ type NewsRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// cryptocurrency to request news for e.g BTC
+	// cryptocurrency ticker to request news for e.g BTC
 	Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"`
 }
 
@@ -216,7 +216,7 @@ type PriceRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// crypto symbol e.g BTCUSD
+	// the crypto symbol e.g BTCUSD
 	Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"`
 }
 
@@ -316,7 +316,7 @@ func (x *PriceResponse) GetPrice() float64 {
 	return 0
 }
 
-// Get the last quote for the crypto
+// Get the last quote for a given crypto ticker
 type QuoteRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -609,6 +609,147 @@ func (x *HistoryResponse) GetDate() string {
 	return ""
 }
 
+// Returns the full list of supported symbols
+type SymbolsRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *SymbolsRequest) Reset() {
+	*x = SymbolsRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_crypto_proto_msgTypes[9]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SymbolsRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SymbolsRequest) ProtoMessage() {}
+
+func (x *SymbolsRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_crypto_proto_msgTypes[9]
+	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 SymbolsRequest.ProtoReflect.Descriptor instead.
+func (*SymbolsRequest) Descriptor() ([]byte, []int) {
+	return file_proto_crypto_proto_rawDescGZIP(), []int{9}
+}
+
+type SymbolsResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Symbols []*Symbol `protobuf:"bytes,1,rep,name=symbols,proto3" json:"symbols,omitempty"`
+}
+
+func (x *SymbolsResponse) Reset() {
+	*x = SymbolsResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_crypto_proto_msgTypes[10]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SymbolsResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SymbolsResponse) ProtoMessage() {}
+
+func (x *SymbolsResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_crypto_proto_msgTypes[10]
+	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 SymbolsResponse.ProtoReflect.Descriptor instead.
+func (*SymbolsResponse) Descriptor() ([]byte, []int) {
+	return file_proto_crypto_proto_rawDescGZIP(), []int{10}
+}
+
+func (x *SymbolsResponse) GetSymbols() []*Symbol {
+	if x != nil {
+		return x.Symbols
+	}
+	return nil
+}
+
+type Symbol struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"`
+	Name   string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (x *Symbol) Reset() {
+	*x = Symbol{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_crypto_proto_msgTypes[11]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Symbol) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Symbol) ProtoMessage() {}
+
+func (x *Symbol) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_crypto_proto_msgTypes[11]
+	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 Symbol.ProtoReflect.Descriptor instead.
+func (*Symbol) Descriptor() ([]byte, []int) {
+	return file_proto_crypto_proto_rawDescGZIP(), []int{11}
+}
+
+func (x *Symbol) GetSymbol() string {
+	if x != nil {
+		return x.Symbol
+	}
+	return ""
+}
+
+func (x *Symbol) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
 var File_proto_crypto_proto protoreflect.FileDescriptor
 
 var file_proto_crypto_proto_rawDesc = []byte{
@@ -663,23 +804,35 @@ var file_proto_crypto_proto_rawDesc = []byte{
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 }
 
 var (
@@ -694,7 +847,7 @@ func file_proto_crypto_proto_rawDescGZIP() []byte {
 	return file_proto_crypto_proto_rawDescData
 }
 
-var file_proto_crypto_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
+var file_proto_crypto_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
 var file_proto_crypto_proto_goTypes = []interface{}{
 	(*Article)(nil),         // 0: crypto.Article
 	(*NewsRequest)(nil),     // 1: crypto.NewsRequest
@@ -705,22 +858,28 @@ var file_proto_crypto_proto_goTypes = []interface{}{
 	(*QuoteResponse)(nil),   // 6: crypto.QuoteResponse
 	(*HistoryRequest)(nil),  // 7: crypto.HistoryRequest
 	(*HistoryResponse)(nil), // 8: crypto.HistoryResponse
+	(*SymbolsRequest)(nil),  // 9: crypto.SymbolsRequest
+	(*SymbolsResponse)(nil), // 10: crypto.SymbolsResponse
+	(*Symbol)(nil),          // 11: crypto.Symbol
 }
 var file_proto_crypto_proto_depIdxs = []int32{
 	0,  // 0: crypto.NewsResponse.articles:type_name -> crypto.Article
-	1, // 1: crypto.Crypto.News:input_type -> crypto.NewsRequest
+	11, // 1: crypto.SymbolsResponse.symbols:type_name -> crypto.Symbol
-	5, // 2: crypto.Crypto.Quote:input_type -> crypto.QuoteRequest
+	1,  // 2: crypto.Crypto.News:input_type -> crypto.NewsRequest
-	3, // 3: crypto.Crypto.Price:input_type -> crypto.PriceRequest
+	5,  // 3: crypto.Crypto.Quote:input_type -> crypto.QuoteRequest
-	7, // 4: crypto.Crypto.History:input_type -> crypto.HistoryRequest
+	3,  // 4: crypto.Crypto.Price:input_type -> crypto.PriceRequest
-	2, // 5: crypto.Crypto.News:output_type -> crypto.NewsResponse
+	7,  // 5: crypto.Crypto.History:input_type -> crypto.HistoryRequest
-	6, // 6: crypto.Crypto.Quote:output_type -> crypto.QuoteResponse
+	9,  // 6: crypto.Crypto.Symbols:input_type -> crypto.SymbolsRequest
-	4, // 7: crypto.Crypto.Price:output_type -> crypto.PriceResponse
+	2,  // 7: crypto.Crypto.News:output_type -> crypto.NewsResponse
-	8, // 8: crypto.Crypto.History:output_type -> crypto.HistoryResponse
+	6,  // 8: crypto.Crypto.Quote:output_type -> crypto.QuoteResponse
-	5, // [5:9] is the sub-list for method output_type
+	4,  // 9: crypto.Crypto.Price:output_type -> crypto.PriceResponse
-	1, // [1:5] is the sub-list for method input_type
+	8,  // 10: crypto.Crypto.History:output_type -> crypto.HistoryResponse
-	1, // [1:1] is the sub-list for extension type_name
+	10, // 11: crypto.Crypto.Symbols:output_type -> crypto.SymbolsResponse
-	1, // [1:1] is the sub-list for extension extendee
+	7,  // [7:12] is the sub-list for method output_type
-	0, // [0:1] is the sub-list for field type_name
+	2,  // [2:7] is the sub-list for method input_type
+	2,  // [2:2] is the sub-list for extension type_name
+	2,  // [2:2] is the sub-list for extension extendee
+	0,  // [0:2] is the sub-list for field type_name
 }
 
 func init() { file_proto_crypto_proto_init() }
@@ -837,6 +996,42 @@ func file_proto_crypto_proto_init() {
 				return nil
 			}
 		}
+		file_proto_crypto_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SymbolsRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_crypto_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SymbolsResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_crypto_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Symbol); 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{
@@ -844,7 +1039,7 @@ func file_proto_crypto_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_crypto_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   9,
+			NumMessages:   12,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

crypto/proto/crypto.pb.micro.go

@@ -46,6 +46,7 @@ type CryptoService 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)
+	Symbols(ctx context.Context, in *SymbolsRequest, opts ...client.CallOption) (*SymbolsResponse, error)
 }
 
 type cryptoService struct {
@@ -100,6 +101,16 @@ func (c *cryptoService) History(ctx context.Context, in *HistoryRequest, opts ..
 	return out, nil
 }
 
+func (c *cryptoService) Symbols(ctx context.Context, in *SymbolsRequest, opts ...client.CallOption) (*SymbolsResponse, error) {
+	req := c.c.NewRequest(c.name, "Crypto.Symbols", in)
+	out := new(SymbolsResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // Server API for Crypto service
 
 type CryptoHandler interface {
@@ -107,6 +118,7 @@ type CryptoHandler interface {
 	Quote(context.Context, *QuoteRequest, *QuoteResponse) error
 	Price(context.Context, *PriceRequest, *PriceResponse) error
 	History(context.Context, *HistoryRequest, *HistoryResponse) error
+	Symbols(context.Context, *SymbolsRequest, *SymbolsResponse) error
 }
 
 func RegisterCryptoHandler(s server.Server, hdlr CryptoHandler, opts ...server.HandlerOption) error {
@@ -115,6 +127,7 @@ func RegisterCryptoHandler(s server.Server, hdlr CryptoHandler, opts ...server.H
 		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
+		Symbols(ctx context.Context, in *SymbolsRequest, out *SymbolsResponse) error
 	}
 	type Crypto struct {
 		crypto
@@ -142,3 +155,7 @@ func (h *cryptoHandler) Price(ctx context.Context, in *PriceRequest, out *PriceR
 func (h *cryptoHandler) History(ctx context.Context, in *HistoryRequest, out *HistoryResponse) error {
 	return h.CryptoHandler.History(ctx, in, out)
 }
+
+func (h *cryptoHandler) Symbols(ctx context.Context, in *SymbolsRequest, out *SymbolsResponse) error {
+	return h.CryptoHandler.Symbols(ctx, in, out)
+}

crypto/proto/crypto.proto

@@ -9,6 +9,7 @@ service Crypto {
 	rpc Quote(QuoteRequest) returns (QuoteResponse) {}
 	rpc Price(PriceRequest) returns (PriceResponse) {}
 	rpc History(HistoryRequest) returns (HistoryResponse) {}
+	rpc Symbols(SymbolsRequest) returns (SymbolsResponse) {}
 }
 
 message Article {
@@ -94,3 +95,15 @@ message HistoryResponse {
 	// the date
 	string date = 7;
 }
+
+// Returns the full list of supported symbols
+message SymbolsRequest {}
+
+message SymbolsResponse {
+	repeated Symbol symbols = 1;
+}
+
+message Symbol {
+	string symbol = 1;
+	string name = 2;
+}

go.sum

@@ -500,10 +500,6 @@ github.com/mattn/go-sqlite3 v1.14.5 h1:1IdxlwTNazvbKJQSxoJ5/9ECbEeaTTyeU7sEAZ5KK
 github.com/mattn/go-sqlite3 v1.14.5/go.mod h1:WVKg1VTActs4Qso6iwGbiFih2UIHo0ENGwNd0Lj+XmI=
 github.com/mattn/go-tty v0.0.0-20180219170247-931426f7535a/go.mod h1:XPvLUNfbS4fJH25nqRHfWLMa1ONC8Amw+mIA639KxkE=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
-github.com/micro/micro/v3 v3.9.1-0.20220216155053-3f60fc42a827 h1:ri67oBlQBVidHb99aNQFZBsBS5qUNGdUGo1+c0/g9ss=
-github.com/micro/micro/v3 v3.9.1-0.20220216155053-3f60fc42a827/go.mod h1:fNx55Nv50LZMgd5Prytro1ZNwXphvVID78R6KJ+xLbQ=
-github.com/micro/micro/v3 v3.9.1-0.20220227215143-9815babcb910 h1:xTmlxomMDG3WHSgU5oqO72n9svGJKGimBjoIiZKLswo=
-github.com/micro/micro/v3 v3.9.1-0.20220227215143-9815babcb910/go.mod h1:fNx55Nv50LZMgd5Prytro1ZNwXphvVID78R6KJ+xLbQ=
 github.com/micro/micro/v3 v3.9.1-0.20220227222118-3d0aa50678fe h1:FtAWgT+YjqDg+pdgj1wAgGDi5YTJpBMLE1Chm/H3gi4=
 github.com/micro/micro/v3 v3.9.1-0.20220227222118-3d0aa50678fe/go.mod h1:fNx55Nv50LZMgd5Prytro1ZNwXphvVID78R6KJ+xLbQ=
 github.com/miekg/dns v1.1.15/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=