Remove all fmr.Println and add zerolog logging

utils/storage/etcd.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/rs/zerolog/log"
 	"github.com/spf13/viper"
 	clientv3 "go.etcd.io/etcd/client/v3"
 	"go.etcd.io/etcd/client/v3/namespace"
@@ -74,9 +75,8 @@ func NewEtcdHandler(cfg *viper.Viper) (*EtcdHandler, error) {
 		Password:    password,
 		DialTimeout: 5 * time.Second,
 	})
-	fmt.Println(endpoints,prefix,username,password)
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return nil, err
 	}
 
@@ -93,7 +93,7 @@ func NewEtcdHandler(cfg *viper.Viper) (*EtcdHandler, error) {
 func (s *EtcdHandler) Put(k string, v any) error {
 	data, err := s.serializer.Serialize(v)
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return err
 	}
 	// _, err = s.Client.KV.Put(context.TODO(), k, data.String())
@@ -101,7 +101,7 @@ func (s *EtcdHandler) Put(k string, v any) error {
 	_, err = s.Client.KV.Put(ctx, k, string(data))
 	cancel()
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return err
 	}
 	return nil
@@ -110,13 +110,13 @@ func (s *EtcdHandler) Put(k string, v any) error {
 func (s *EtcdHandler) PutWithTTL(k string, v any, duration time.Duration) error {
 	lease, err := s.Client.Lease.Grant(context.TODO(), int64(duration.Seconds()))
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return err
 	}
 
 	data, err := s.serializer.Serialize(v)
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return err
 	}
 	// _, err = s.Client.KV.Put(context.TODO(), k, data.String(), clientv3.WithLease(lease.ID))
@@ -125,7 +125,7 @@ func (s *EtcdHandler) PutWithTTL(k string, v any, duration time.Duration) error
 	cancel()
 
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return err
 	}
 	return nil
@@ -136,14 +136,14 @@ func (s *EtcdHandler) Get(k string) (any, error) {
 	resp, err := s.Client.KV.Get(ctx, k)
 	cancel()
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return nil, err
 	}
 	for _, v := range resp.Kvs {
 		var data any
 		err := s.serializer.Deserialize([]byte(v.Value), &data)
 		if err != nil {
-			fmt.Println(err)
+			log.Error().Err(err).Msg("")
 			return nil, err
 		}
 		// We return directly as we want to last revision of value
@@ -157,7 +157,7 @@ func (s *EtcdHandler) Delete(k string) error {
 	_, err := s.Client.KV.Delete(ctx, k)
 	cancel()
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return err
 	}
 	return nil

utils/storage/minio.go

@@ -2,12 +2,12 @@ package storage
 
 import (
 	"context"
-	"fmt"
 	"io"
 	"strings"
 
 	"github.com/minio/minio-go/v7"
 	"github.com/minio/minio-go/v7/pkg/credentials"
+	"github.com/rs/zerolog/log"
 	"github.com/spf13/viper"
 )
 
@@ -23,7 +23,7 @@ func NewMinioStorageHandler(cfg *viper.Viper) (*MinioStorageHandler, error) {
 		Secure: cfg.GetBool("storage.files.minio.use_ssl"),
 	})
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return nil, err
 	}
 
@@ -53,13 +53,13 @@ func (s *MinioStorageHandler) List(prefix string) []FileInfo {
 
 	for object := range objectCh {
 		if object.Err != nil {
-			fmt.Println("Error : ", object.Err)
+			log.Error().Str("prefix", prefix).Err(object.Err).Msg("Error listing files for prefix")
 			continue
 		}
 
 		objinfo, err := s.Client.StatObject(context.Background(), s.BucketName, object.Key, minio.StatObjectOptions{})
 		if err != nil {
-			fmt.Println(err)
+			log.Error().Err(err).Msg("")
 			continue
 		}
 
@@ -82,12 +82,12 @@ func (s *MinioStorageHandler) List(prefix string) []FileInfo {
 func (s *MinioStorageHandler) Get(prefix string, file string) (io.Reader, *FileInfo, error) {
 	object, err := s.Client.GetObject(context.Background(), s.BucketName, prefix+"/"+file, minio.GetObjectOptions{})
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return nil, nil, err
 	}
 	objinfo, err := s.Client.StatObject(context.Background(), s.BucketName, prefix+"/"+file, minio.StatObjectOptions{})
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return nil, nil, err
 	}
 
@@ -117,7 +117,7 @@ func (s *MinioStorageHandler) Copy(src string, dst string) error {
 
 	_, err := s.Client.CopyObject(context.Background(), dstOpts, srcOpts)
 	if err != nil {
-		fmt.Println(err)
+		log.Error().Err(err).Msg("")
 		return err
 	}
 	return nil

utils/storage/sessions.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/gorilla/securecookie"
 	"github.com/gorilla/sessions"
+	"github.com/rs/zerolog/log"
 )
 
 // Amount of time for cookies/kv keys to expire.
@@ -76,7 +77,7 @@ func (s *SessionStore) Save(r *http.Request, w http.ResponseWriter, session *ses
 	// Marked for deletion.
 	if session.Options.MaxAge <= 0 {
 		if err := s.delete(r.Context(), session); err != nil {
-			fmt.Println(err)
+			log.Error().Err(err).Msg("")
 			return err
 		}
 		http.SetCookie(w, sessions.NewCookie(session.Name(), "", session.Options))
@@ -87,13 +88,13 @@ func (s *SessionStore) Save(r *http.Request, w http.ResponseWriter, session *ses
 		}
 
 		if err := s.save(r.Context(), session); err != nil {
-			fmt.Println(err)
+			log.Error().Err(err).Msg("")
 			return err
 		}
 
 		encoded, err := securecookie.EncodeMulti(session.Name(), session.ID, s.Codecs...)
 		if err != nil {
-			fmt.Println(err)
+			log.Error().Err(err).Msg("")
 			return err
 		}
 		http.SetCookie(w, sessions.NewCookie(session.Name(), encoded, session.Options))
@@ -104,13 +105,11 @@ func (s *SessionStore) Save(r *http.Request, w http.ResponseWriter, session *ses
 // save stores the session in kv.
 func (s *SessionStore) save(ctx context.Context, session *sessions.Session) error {
 	m := make(map[string]interface{}, len(session.Values))
-	fmt.Println(m)
 	for k, v := range session.Values {
-		fmt.Println(v)
 		ks, ok := k.(string)
 		if !ok {
 			err := fmt.Errorf("non-string key value, cannot serialize session: %v", k)
-			fmt.Println(err)
+			log.Error().Err(err).Msg("")
 			return err
 		}
 		m[ks] = v