initial http support

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

pkg/httpconn/httpconn.go

@@ -0,0 +1,30 @@
+package httpconn
+
+import (
+	"context"
+	"time"
+
+	"github.com/google/uuid"
+	"go.unistack.org/micro/v3/client"
+	"go.unistack.org/micro/v3/logger"
+)
+
+func Call(ctx context.Context, l logger.Logger, c client.Client, addr string, td time.Duration, req client.Request, rsp interface{}, opts ...client.CallOption) error {
+	var err error
+	uid, err := uuid.NewRandom()
+	if err != nil {
+		l.Error(ctx, "failed to generate x-request-id", err)
+		return err
+	}
+
+	err = c.Call(ctx, req, rsp,
+		client.WithAddress(addr),
+		client.WithRequestTimeout(td),
+		// client.WithContentType("application/json"),
+	)
+	if err != nil {
+		l.Error(ctx, "call failed", "x-request-id", uid.String(), err)
+		return err
+	}
+	return nil
+}