From 1523f51b1da7de05189d01837391406eaf308493 Mon Sep 17 00:00:00 2001
From: taran-p <taran@minio.io>
Date: Thu, 2 Nov 2023 05:34:32 +0000
Subject: [PATCH 1/3] add filters for errors and specific status codes

---
 http-tracer.go | 11 +++++++++++
 main.go        | 12 ++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/http-tracer.go b/http-tracer.go
index 4078e0c..9206259 100644
--- a/http-tracer.go
+++ b/http-tracer.go
@@ -22,6 +22,7 @@ import (
 	"io"
 	"io/ioutil"
 	"net/http"
+	"slices"
 	"strconv"
 	"strings"
 	"time"
@@ -301,6 +302,16 @@ func doTrace(trace TraceInfo, backend *Backend) {
 		return
 	}
 
+	if globalErrorsOnly && st.StatusCode == http.StatusOK {
+		return
+	}
+
+	if len(globalStatusCodes) > 0 {
+		if !slices.Contains(globalStatusCodes, st.StatusCode) {
+			return
+		}
+	}
+
 	if globalJSONEnabled {
 		if globalDebugEnabled {
 			buf := &bytes.Buffer{}
diff --git a/main.go b/main.go
index ab70460..19b40a9 100644
--- a/main.go
+++ b/main.go
@@ -66,6 +66,8 @@ var (
 	globalTrace          string
 	globalJSONEnabled    bool
 	globalConsoleDisplay bool
+	globalErrorsOnly     bool
+	globalStatusCodes    []int
 	globalConnStats      []*ConnStats
 	log2                 *logrus.Logger
 )
@@ -807,6 +809,8 @@ func sidekickMain(ctx *cli.Context) {
 	globalQuietEnabled = ctx.GlobalBool("quiet")
 	globalConsoleDisplay = globalLoggingEnabled || ctx.IsSet("trace") || !term.IsTerminal(int(os.Stdout.Fd()))
 	globalDebugEnabled = ctx.GlobalBool("debug")
+	globalErrorsOnly = ctx.GlobalBool("errors")
+	globalStatusCodes = ctx.GlobalIntSlice("status-code")
 
 	go func() {
 		t := time.NewTicker(ctx.GlobalDuration("dns-ttl"))
@@ -961,6 +965,14 @@ func main() {
 			Usage: "choose custom DNS TTL value for DNS refreshes for load balanced endpoints",
 			Value: 10 * time.Minute,
 		},
+		cli.BoolFlag{
+			Name:  "errors , e",
+			Usage: "filter out any non-error responses",
+		},
+		cli.IntSliceFlag{
+			Name:  "status-code",
+			Usage: "filter by given status code",
+		},
 	}
 	app.CustomAppHelpTemplate = `NAME:
   {{.Name}} - {{.Description}}

From 341f1bd9133a7c0ddc741c76e10b62d46e11573f Mon Sep 17 00:00:00 2001
From: taran-p <taran@minio.io>
Date: Thu, 2 Nov 2023 17:51:19 +0000
Subject: [PATCH 2/3] change errors check

---
 http-tracer.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/http-tracer.go b/http-tracer.go
index 9206259..6b55f3b 100644
--- a/http-tracer.go
+++ b/http-tracer.go
@@ -302,7 +302,7 @@ func doTrace(trace TraceInfo, backend *Backend) {
 		return
 	}
 
-	if globalErrorsOnly && st.StatusCode == http.StatusOK {
+	if globalErrorsOnly && st.StatusCode >= 400 && st.StatusCode < 600 {
 		return
 	}
 

From f1280928f490b6cb9d1aa59ce0d0544fc866a83c Mon Sep 17 00:00:00 2001
From: taran-p <taran@minio.io>
Date: Thu, 2 Nov 2023 17:53:37 +0000
Subject: [PATCH 3/3] .

---
 http-tracer.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/http-tracer.go b/http-tracer.go
index 6b55f3b..d89cc23 100644
--- a/http-tracer.go
+++ b/http-tracer.go
@@ -302,7 +302,7 @@ func doTrace(trace TraceInfo, backend *Backend) {
 		return
 	}
 
-	if globalErrorsOnly && st.StatusCode >= 400 && st.StatusCode < 600 {
+	if globalErrorsOnly && (st.StatusCode < 400 || st.StatusCode >= 600) {
 		return
 	}