feat: add client

internal/cmd/client.go

@@ -0,0 +1,65 @@
+package cmd
+
+import (
+	"context"
+	"os"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/spf13/cobra"
+	"go.uber.org/zap"
+
+	"github.com/go-faster/simon/internal/app"
+	"github.com/go-faster/simon/internal/oas"
+	"github.com/go-faster/simon/sdk/zctx"
+)
+
+func cmdClient() *cobra.Command {
+	return &cobra.Command{
+		Use:   "client",
+		Short: "Run a HTTP client",
+		Run: func(cmd *cobra.Command, args []string) {
+			app.Run(func(ctx context.Context, logger *zap.Logger, m *app.Metrics) error {
+				addr := os.Getenv("SERVER_ADDR")
+				if addr == "" {
+					addr = "http://localhost:8080"
+				}
+				c, err := oas.NewClient(addr,
+					oas.WithMeterProvider(m.MeterProvider()),
+					oas.WithTracerProvider(m.TracerProvider()),
+				)
+				if err != nil {
+					return errors.Wrap(err, "client")
+				}
+				ticker := time.NewTicker(time.Second)
+				tracer := m.TracerProvider().Tracer("")
+				tick := func() {
+					ctx, cancel := context.WithTimeout(ctx, time.Second)
+					defer cancel()
+
+					ctx, span := tracer.Start(ctx, "client.tick")
+					defer span.End()
+
+					lg := zctx.From(ctx)
+					lg.Info("Sending request")
+
+					status, err := c.Status(ctx)
+					if err != nil {
+						lg.Error("Request failed", zap.Error(err))
+						return
+					}
+					lg.Info("Request succeeded", zap.String("message", status.Message))
+				}
+				tick()
+				for {
+					select {
+					case <-ctx.Done():
+						return ctx.Err()
+					case <-ticker.C:
+						tick()
+					}
+				}
+			})
+		},
+	}
+}

internal/cmd/root.go

@@ -42,6 +42,7 @@ func Root() *cobra.Command {
 	}
 	cmd.AddCommand(
 		cmdServer(),
+		cmdClient(),
 	)
 	return cmd
 }