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add crypto news

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This commit is contained in:
Asim Aslam
2021-06-23 15:56:17 +01:00
parent b23ee59a91
commit cc8cce1b61
4 changed files with 439 additions and 89 deletions
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55
crypto/handler/crypto.go
View File

@@ -20,6 +20,20 @@ var (
re = regexp.MustCompile(`\d{4}-\d{2}-\d{2}`)
)
type Article struct {
Title string
Description string
Url string
Source string
Date string
}
type News struct {
Ticker string
Limit int32
News []*Article
}
type Crypto struct {
Api string
Key string
@@ -76,6 +90,47 @@ func New() *Crypto {
}
}
func (c *Crypto) News(ctx context.Context, req *pb.NewsRequest, rsp *pb.NewsResponse) error {
if len(req.Symbol) <= 0 {
return errors.BadRequest("crypto.news", "invalid symbol")
}
uri := fmt.Sprintf("%snews/cryptocurrency/%s?apikey=%s", c.Api, req.Symbol, c.Key)
resp, err := http.Get(uri)
if err != nil {
logger.Errorf("Failed to get news: %v\n", err)
return errors.InternalServerError("crypto.news", "failed to get news")
}
defer resp.Body.Close()
b, _ := ioutil.ReadAll(resp.Body)
if resp.StatusCode != 200 {
logger.Errorf("Failed to get news (non 200): %d %v\n", resp.StatusCode, string(b))
return errors.InternalServerError("crypto.news", "failed to get news")
}
var respBody News
if err := json.Unmarshal(b, &respBody); err != nil {
logger.Errorf("Failed to unmarshal news: %v\n", err)
return errors.InternalServerError("crypto.news", "failed to get news")
}
for _, article := range respBody.News {
rsp.Articles = append(rsp.Articles, &pb.Article{
Title: article.Title,
Description: article.Description,
Url: article.Url,
Source: article.Source,
Date: article.Date,
})
}
return nil
}
func (s *Crypto) History(ctx context.Context, req *pb.HistoryRequest, rsp *pb.HistoryResponse) error {
if len(req.Symbol) <= 0 {
return errors.BadRequest("crypto.history", "invalid symbol")

429
crypto/proto/crypto.pb.go
View File

@@ -20,6 +20,196 @@ const (
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type Article struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// title of the article
Title string `protobuf:"bytes,1,opt,name=title,proto3" json:"title,omitempty"`
// its description
Description string `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"`
// the source url
Url string `protobuf:"bytes,3,opt,name=url,proto3" json:"url,omitempty"`
// the date published
Date string `protobuf:"bytes,4,opt,name=date,proto3" json:"date,omitempty"`
// the source
Source string `protobuf:"bytes,5,opt,name=source,proto3" json:"source,omitempty"`
}
func (x *Article) Reset() {
*x = Article{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_crypto_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Article) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Article) ProtoMessage() {}
func (x *Article) ProtoReflect() protoreflect.Message {
mi := &file_proto_crypto_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 Article.ProtoReflect.Descriptor instead.
func (*Article) Descriptor() ([]byte, []int) {
return file_proto_crypto_proto_rawDescGZIP(), []int{0}
}
func (x *Article) GetTitle() string {
if x != nil {
return x.Title
}
return ""
}
func (x *Article) GetDescription() string {
if x != nil {
return x.Description
}
return ""
}
func (x *Article) GetUrl() string {
if x != nil {
return x.Url
}
return ""
}
func (x *Article) GetDate() string {
if x != nil {
return x.Date
}
return ""
}
func (x *Article) GetSource() string {
if x != nil {
return x.Source
}
return ""
}
// Get news related to a currency
type NewsRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// cryptocurrency to request news for e.g BTC
Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"`
}
func (x *NewsRequest) Reset() {
*x = NewsRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_crypto_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *NewsRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*NewsRequest) ProtoMessage() {}
func (x *NewsRequest) ProtoReflect() protoreflect.Message {
mi := &file_proto_crypto_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 NewsRequest.ProtoReflect.Descriptor instead.
func (*NewsRequest) Descriptor() ([]byte, []int) {
return file_proto_crypto_proto_rawDescGZIP(), []int{1}
}
func (x *NewsRequest) GetSymbol() string {
if x != nil {
return x.Symbol
}
return ""
}
type NewsResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// symbol requested for
Symbol string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"`
// list of articles
Articles []*Article `protobuf:"bytes,2,rep,name=articles,proto3" json:"articles,omitempty"`
}
func (x *NewsResponse) Reset() {
*x = NewsResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_crypto_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *NewsResponse) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*NewsResponse) ProtoMessage() {}
func (x *NewsResponse) ProtoReflect() protoreflect.Message {
mi := &file_proto_crypto_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 NewsResponse.ProtoReflect.Descriptor instead.
func (*NewsResponse) Descriptor() ([]byte, []int) {
return file_proto_crypto_proto_rawDescGZIP(), []int{2}
}
func (x *NewsResponse) GetSymbol() string {
if x != nil {
return x.Symbol
}
return ""
}
func (x *NewsResponse) GetArticles() []*Article {
if x != nil {
return x.Articles
}
return nil
}
// Get the last price for a given crypto ticker
type PriceRequest struct {
state protoimpl.MessageState
@@ -33,7 +223,7 @@ type PriceRequest struct {
func (x *PriceRequest) Reset() {
*x = PriceRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_crypto_proto_msgTypes[0]
mi := &file_proto_crypto_proto_msgTypes[3]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
@@ -46,7 +236,7 @@ func (x *PriceRequest) String() string {
func (*PriceRequest) ProtoMessage() {}
func (x *PriceRequest) ProtoReflect() protoreflect.Message {
mi := &file_proto_crypto_proto_msgTypes[0]
mi := &file_proto_crypto_proto_msgTypes[3]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
@@ -59,7 +249,7 @@ func (x *PriceRequest) ProtoReflect() protoreflect.Message {
// Deprecated: Use PriceRequest.ProtoReflect.Descriptor instead.
func (*PriceRequest) Descriptor() ([]byte, []int) {
return file_proto_crypto_proto_rawDescGZIP(), []int{0}
return file_proto_crypto_proto_rawDescGZIP(), []int{3}
}
func (x *PriceRequest) GetSymbol() string {
@@ -83,7 +273,7 @@ type PriceResponse struct {
func (x *PriceResponse) Reset() {
*x = PriceResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_crypto_proto_msgTypes[1]
mi := &file_proto_crypto_proto_msgTypes[4]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
@@ -96,7 +286,7 @@ func (x *PriceResponse) String() string {
func (*PriceResponse) ProtoMessage() {}
func (x *PriceResponse) ProtoReflect() protoreflect.Message {
mi := &file_proto_crypto_proto_msgTypes[1]
mi := &file_proto_crypto_proto_msgTypes[4]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
@@ -109,7 +299,7 @@ func (x *PriceResponse) ProtoReflect() protoreflect.Message {
// Deprecated: Use PriceResponse.ProtoReflect.Descriptor instead.
func (*PriceResponse) Descriptor() ([]byte, []int) {
return file_proto_crypto_proto_rawDescGZIP(), []int{1}
return file_proto_crypto_proto_rawDescGZIP(), []int{4}
}
func (x *PriceResponse) GetSymbol() string {
@@ -139,7 +329,7 @@ type QuoteRequest struct {
func (x *QuoteRequest) Reset() {
*x = QuoteRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_crypto_proto_msgTypes[2]
mi := &file_proto_crypto_proto_msgTypes[5]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
@@ -152,7 +342,7 @@ func (x *QuoteRequest) String() string {
func (*QuoteRequest) ProtoMessage() {}
func (x *QuoteRequest) ProtoReflect() protoreflect.Message {
mi := &file_proto_crypto_proto_msgTypes[2]
mi := &file_proto_crypto_proto_msgTypes[5]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
@@ -165,7 +355,7 @@ func (x *QuoteRequest) ProtoReflect() protoreflect.Message {
// Deprecated: Use QuoteRequest.ProtoReflect.Descriptor instead.
func (*QuoteRequest) Descriptor() ([]byte, []int) {
return file_proto_crypto_proto_rawDescGZIP(), []int{2}
return file_proto_crypto_proto_rawDescGZIP(), []int{5}
}
func (x *QuoteRequest) GetSymbol() string {
@@ -197,7 +387,7 @@ type QuoteResponse struct {
func (x *QuoteResponse) Reset() {
*x = QuoteResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_crypto_proto_msgTypes[3]
mi := &file_proto_crypto_proto_msgTypes[6]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
@@ -210,7 +400,7 @@ func (x *QuoteResponse) String() string {
func (*QuoteResponse) ProtoMessage() {}
func (x *QuoteResponse) ProtoReflect() protoreflect.Message {
mi := &file_proto_crypto_proto_msgTypes[3]
mi := &file_proto_crypto_proto_msgTypes[6]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
@@ -223,7 +413,7 @@ func (x *QuoteResponse) ProtoReflect() protoreflect.Message {
// Deprecated: Use QuoteResponse.ProtoReflect.Descriptor instead.
func (*QuoteResponse) Descriptor() ([]byte, []int) {
return file_proto_crypto_proto_rawDescGZIP(), []int{3}
return file_proto_crypto_proto_rawDescGZIP(), []int{6}
}
func (x *QuoteResponse) GetSymbol() string {
@@ -281,7 +471,7 @@ type HistoryRequest struct {
func (x *HistoryRequest) Reset() {
*x = HistoryRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_crypto_proto_msgTypes[4]
mi := &file_proto_crypto_proto_msgTypes[7]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
@@ -294,7 +484,7 @@ func (x *HistoryRequest) String() string {
func (*HistoryRequest) ProtoMessage() {}
func (x *HistoryRequest) ProtoReflect() protoreflect.Message {
mi := &file_proto_crypto_proto_msgTypes[4]
mi := &file_proto_crypto_proto_msgTypes[7]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
@@ -307,7 +497,7 @@ func (x *HistoryRequest) ProtoReflect() protoreflect.Message {
// Deprecated: Use HistoryRequest.ProtoReflect.Descriptor instead.
func (*HistoryRequest) Descriptor() ([]byte, []int) {
return file_proto_crypto_proto_rawDescGZIP(), []int{4}
return file_proto_crypto_proto_rawDescGZIP(), []int{7}
}
func (x *HistoryRequest) GetSymbol() string {
@@ -341,7 +531,7 @@ type HistoryResponse struct {
func (x *HistoryResponse) Reset() {
*x = HistoryResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_crypto_proto_msgTypes[5]
mi := &file_proto_crypto_proto_msgTypes[8]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
@@ -354,7 +544,7 @@ func (x *HistoryResponse) String() string {
func (*HistoryResponse) ProtoMessage() {}
func (x *HistoryResponse) ProtoReflect() protoreflect.Message {
mi := &file_proto_crypto_proto_msgTypes[5]
mi := &file_proto_crypto_proto_msgTypes[8]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
@@ -367,7 +557,7 @@ func (x *HistoryResponse) ProtoReflect() protoreflect.Message {
// Deprecated: Use HistoryResponse.ProtoReflect.Descriptor instead.
func (*HistoryResponse) Descriptor() ([]byte, []int) {
return file_proto_crypto_proto_rawDescGZIP(), []int{5}
return file_proto_crypto_proto_rawDescGZIP(), []int{8}
}
func (x *HistoryResponse) GetSymbol() string {
@@ -423,54 +613,73 @@ var File_proto_crypto_proto protoreflect.FileDescriptor
var file_proto_crypto_proto_rawDesc = []byte{
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}
var (
@@ -485,27 +694,33 @@ func file_proto_crypto_proto_rawDescGZIP() []byte {
return file_proto_crypto_proto_rawDescData
}
var file_proto_crypto_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
var file_proto_crypto_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
var file_proto_crypto_proto_goTypes = []interface{}{
(*PriceRequest)(nil), // 0: crypto.PriceRequest
(*PriceResponse)(nil), // 1: crypto.PriceResponse
(*QuoteRequest)(nil), // 2: crypto.QuoteRequest
(*QuoteResponse)(nil), // 3: crypto.QuoteResponse
(*HistoryRequest)(nil), // 4: crypto.HistoryRequest
(*HistoryResponse)(nil), // 5: crypto.HistoryResponse
(*Article)(nil), // 0: crypto.Article
(*NewsRequest)(nil), // 1: crypto.NewsRequest
(*NewsResponse)(nil), // 2: crypto.NewsResponse
(*PriceRequest)(nil), // 3: crypto.PriceRequest
(*PriceResponse)(nil), // 4: crypto.PriceResponse
(*QuoteRequest)(nil), // 5: crypto.QuoteRequest
(*QuoteResponse)(nil), // 6: crypto.QuoteResponse
(*HistoryRequest)(nil), // 7: crypto.HistoryRequest
(*HistoryResponse)(nil), // 8: crypto.HistoryResponse
}
var file_proto_crypto_proto_depIdxs = []int32{
2, // 0: crypto.Crypto.Quote:input_type -> crypto.QuoteRequest
0, // 1: crypto.Crypto.Price:input_type -> crypto.PriceRequest
4, // 2: crypto.Crypto.History:input_type -> crypto.HistoryRequest
3, // 3: crypto.Crypto.Quote:output_type -> crypto.QuoteResponse
1, // 4: crypto.Crypto.Price:output_type -> crypto.PriceResponse
5, // 5: crypto.Crypto.History:output_type -> crypto.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
0, // 0: crypto.NewsResponse.articles:type_name -> crypto.Article
1, // 1: crypto.Crypto.News:input_type -> crypto.NewsRequest
5, // 2: crypto.Crypto.Quote:input_type -> crypto.QuoteRequest
3, // 3: crypto.Crypto.Price:input_type -> crypto.PriceRequest
7, // 4: crypto.Crypto.History:input_type -> crypto.HistoryRequest
2, // 5: crypto.Crypto.News:output_type -> crypto.NewsResponse
6, // 6: crypto.Crypto.Quote:output_type -> crypto.QuoteResponse
4, // 7: crypto.Crypto.Price:output_type -> crypto.PriceResponse
8, // 8: crypto.Crypto.History:output_type -> crypto.HistoryResponse
5, // [5:9] is the sub-list for method output_type
1, // [1:5] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_proto_crypto_proto_init() }
@@ -515,7 +730,7 @@ func file_proto_crypto_proto_init() {
}
if !protoimpl.UnsafeEnabled {
file_proto_crypto_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*PriceRequest); i {
switch v := v.(*Article); i {
case 0:
return &v.state
case 1:
@@ -527,7 +742,7 @@ func file_proto_crypto_proto_init() {
}
}
file_proto_crypto_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*PriceResponse); i {
switch v := v.(*NewsRequest); i {
case 0:
return &v.state
case 1:
@@ -539,7 +754,7 @@ func file_proto_crypto_proto_init() {
}
}
file_proto_crypto_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*QuoteRequest); i {
switch v := v.(*NewsResponse); i {
case 0:
return &v.state
case 1:
@@ -551,7 +766,7 @@ func file_proto_crypto_proto_init() {
}
}
file_proto_crypto_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*QuoteResponse); i {
switch v := v.(*PriceRequest); i {
case 0:
return &v.state
case 1:
@@ -563,7 +778,7 @@ func file_proto_crypto_proto_init() {
}
}
file_proto_crypto_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*HistoryRequest); i {
switch v := v.(*PriceResponse); i {
case 0:
return &v.state
case 1:
@@ -575,6 +790,42 @@ func file_proto_crypto_proto_init() {
}
}
file_proto_crypto_proto_msgTypes[5].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_crypto_proto_msgTypes[6].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_crypto_proto_msgTypes[7].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_crypto_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*HistoryResponse); i {
case 0:
return &v.state
@@ -593,7 +844,7 @@ func file_proto_crypto_proto_init() {
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_proto_crypto_proto_rawDesc,
NumEnums: 0,
NumMessages: 6,
NumMessages: 9,
NumExtensions: 0,
NumServices: 1,
},

17
crypto/proto/crypto.pb.micro.go
View File

@@ -42,6 +42,7 @@ func NewCryptoEndpoints() []*api.Endpoint {
// Client API for Crypto service
type CryptoService interface {
News(ctx context.Context, in *NewsRequest, opts ...client.CallOption) (*NewsResponse, error)
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)
@@ -59,6 +60,16 @@ func NewCryptoService(name string, c client.Client) CryptoService {
}
}
func (c *cryptoService) News(ctx context.Context, in *NewsRequest, opts ...client.CallOption) (*NewsResponse, error) {
req := c.c.NewRequest(c.name, "Crypto.News", in)
out := new(NewsResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *cryptoService) Quote(ctx context.Context, in *QuoteRequest, opts ...client.CallOption) (*QuoteResponse, error) {
req := c.c.NewRequest(c.name, "Crypto.Quote", in)
out := new(QuoteResponse)
@@ -92,6 +103,7 @@ func (c *cryptoService) History(ctx context.Context, in *HistoryRequest, opts ..
// Server API for Crypto service
type CryptoHandler interface {
News(context.Context, *NewsRequest, *NewsResponse) error
Quote(context.Context, *QuoteRequest, *QuoteResponse) error
Price(context.Context, *PriceRequest, *PriceResponse) error
History(context.Context, *HistoryRequest, *HistoryResponse) error
@@ -99,6 +111,7 @@ type CryptoHandler interface {
func RegisterCryptoHandler(s server.Server, hdlr CryptoHandler, opts ...server.HandlerOption) error {
type crypto interface {
News(ctx context.Context, in *NewsRequest, out *NewsResponse) error
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
@@ -114,6 +127,10 @@ type cryptoHandler struct {
CryptoHandler
}
func (h *cryptoHandler) News(ctx context.Context, in *NewsRequest, out *NewsResponse) error {
return h.CryptoHandler.News(ctx, in, out)
}
func (h *cryptoHandler) Quote(ctx context.Context, in *QuoteRequest, out *QuoteResponse) error {
return h.CryptoHandler.Quote(ctx, in, out)
}

27
crypto/proto/crypto.proto
View File

@@ -5,11 +5,38 @@ package crypto;
option go_package = "./proto;crypto";
service Crypto {
rpc News(NewsRequest) returns (NewsResponse) {}
rpc Quote(QuoteRequest) returns (QuoteResponse) {}
rpc Price(PriceRequest) returns (PriceResponse) {}
rpc History(HistoryRequest) returns (HistoryResponse) {}
}
message Article {
// title of the article
string title = 1;
// its description
string description = 2;
// the source url
string url = 3;
// the date published
string date = 4;
// the source
string source = 5;
}
// Get news related to a currency
message NewsRequest {
// cryptocurrency ticker to request news for e.g BTC
string symbol = 1;
}
message NewsResponse {
// symbol requested for
string symbol = 1;
// list of articles
repeated Article articles = 2;
}
// Get the last price for a given crypto ticker
message PriceRequest {
// crypto symbol e.g BTCUSD