delete currencyservicetemp implementation
Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>
This commit is contained in:
Ahmet Alp Balkan
Simon Zeltser
parent
ddfa0bf0c6
commit
e966fb8c02
5 changed files with 0 additions and 2558 deletions
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@ -1,13 +0,0 @@
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FROM golang:1.10-alpine as builder
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RUN apk add --no-cache ca-certificates git
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WORKDIR /src/microservices-demo/currencyservice
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COPY . .
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RUN go get -d ./...
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RUN go build -o /currencyservice .
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FROM alpine as release
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RUN apk add --no-cache \
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ca-certificates
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COPY --from=builder /currencyservice /currencyservice
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EXPOSE 7000
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ENTRYPOINT ["/currencyservice"]
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File diff suppressed because it is too large
Load diff
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package main
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import (
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"context"
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"fmt"
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"log"
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"net"
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"os"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"google.golang.org/grpc"
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pb "./genproto"
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)
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const (
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listenPort = "7000"
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)
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type currencyServer struct {
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currencies []string
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conversionRates map[[2]string]float64
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}
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func main() {
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port := listenPort
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if os.Getenv("PORT") != "" {
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port = os.Getenv("PORT")
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}
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svc := ¤cyServer{
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currencies: []string{"USD", "EUR", "CAD"},
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conversionRates: map[[2]string]float64{
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{"USD", "EUR"}: 0.86,
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{"EUR", "USD"}: 1 / 0.86,
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{"USD", "CAD"}: 1.33,
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{"CAD", "USD"}: 1 / 1.33,
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{"EUR", "CAD"}: 1.54,
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{"CAD", "EUR"}: 1 / 1.54,
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},
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}
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lis, err := net.Listen("tcp", fmt.Sprintf(":%s", port))
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if err != nil {
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log.Fatal(err)
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}
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srv := grpc.NewServer()
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pb.RegisterCurrencyServiceServer(srv, svc)
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log.Printf("starting to listen on tcp: %q", lis.Addr().String())
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log.Fatal(srv.Serve(lis))
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}
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func (cs *currencyServer) GetSupportedCurrencies(_ context.Context, _ *pb.Empty) (*pb.GetSupportedCurrenciesResponse, error) {
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log.Printf("requesting supported currencies (%d)", len(cs.currencies))
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return &pb.GetSupportedCurrenciesResponse{CurrencyCodes: cs.currencies}, nil
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}
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func (cs *currencyServer) Convert(_ context.Context, req *pb.CurrencyConversionRequest) (*pb.Money, error) {
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log.Printf("requesting currency conversion [%+v] --> %s", req.From, req.ToCode)
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conv := [2]string{req.GetFrom().GetCurrencyCode(), req.GetToCode()}
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rate, ok := cs.conversionRates[conv]
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if !ok {
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return nil, status.Errorf(codes.InvalidArgument, "conversion %v not supported", conv)
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}
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if req.From == nil {
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return nil, status.Errorf(codes.InvalidArgument, "no money amount provided")
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}
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amount := convert(*req.From.Amount, rate)
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return &pb.Money{
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CurrencyCode: req.GetToCode(),
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Amount: &amount}, nil
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}
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package main
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import (
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"fmt"
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"math"
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"strconv"
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"strings"
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pb "./genproto"
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)
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func convert(m pb.MoneyAmount, rate float64) pb.MoneyAmount {
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d, f := m.Decimal, m.Fractional
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lg := int(math.Max(1, math.Ceil(math.Log10(float64(f)))))
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ff, _ := strconv.ParseFloat(fmt.Sprintf("%d.%d", d, f), 64)
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res := ff * rate
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resTxt := fmt.Sprintf("%."+strconv.Itoa(lg)+"f", res)
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p := strings.Split(resTxt, ".")
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ds, fs := p[0], p[1]
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fs = strings.TrimSuffix(fs, "0")
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if fs == "" {
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fs = "0"
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}
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dn, _ := strconv.Atoi(ds)
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fn, _ := strconv.Atoi(fs)
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return pb.MoneyAmount{Decimal: uint32(dn), Fractional: uint32(fn)}
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}
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@ -1,46 +0,0 @@
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package main
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import (
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"reflect"
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"testing"
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pb "./genproto"
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)
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func Test_convert(t *testing.T) {
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type args struct {
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m pb.MoneyAmount
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rate float64
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}
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tests := []struct {
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name string
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args args
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want pb.MoneyAmount
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}{
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{
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"0.33*3", args{pb.MoneyAmount{Decimal: 0, Fractional: 330}, 3}, pb.MoneyAmount{Decimal: 0, Fractional: 99},
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},
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{
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"10.00*0.5", args{pb.MoneyAmount{Decimal: 10}, 0.5}, pb.MoneyAmount{Decimal: 5},
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},
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{
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"10.00*1.5", args{pb.MoneyAmount{Decimal: 10}, 1.5}, pb.MoneyAmount{Decimal: 15},
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},
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{
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"10.00*1/3", args{pb.MoneyAmount{Decimal: 10}, 1.0 / 3}, pb.MoneyAmount{Decimal: 3, Fractional: 3},
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},
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{
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"32.320*0.5 (trailing zero removed)", args{pb.MoneyAmount{Decimal: 32, Fractional: 32}, 0.5}, pb.MoneyAmount{Decimal: 16, Fractional: 16},
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},
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{
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"33.33*(1/3) (trailing zero removed)", args{pb.MoneyAmount{Decimal: 33, Fractional: 33}, 1.0 / 3}, pb.MoneyAmount{Decimal: 11, Fractional: 11},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if got := convert(tt.args.m, tt.args.rate); !reflect.DeepEqual(got, tt.want) {
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t.Errorf("convert([%v]*%f) = %v, want=[%v]", tt.args.m, tt.args.rate, got, tt.want)
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}
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})
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}
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}
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