maybe

src/adapt.go

@@ -23,15 +23,30 @@ func adapt(ctx context.Context, config Config, conn net.Conn) error {
 				if err == io.EOF {
 					return true, nil
 				}
-				return false, err
+				return true, err
 			}
 
 			if len(message) > 0 {
 				hashKey := message[max(0, len(message)-1)].(string)
 				hash := int(crc32.ChecksumIEEE([]byte(hashKey)))
 				forward := config.forwards[hash%len(config.forwards)]
-				result := forward.Do(ctx, message...)
-				_ = forward
+				forwardCon := forward.Get()
+				if forwardCon == nil {
+					return true, io.EOF
+				}
+				forwardConn := forwardCon.(net.Conn)
+				if _, err := forwardConn.Write(raw); err != nil {
+					return true, err
+				}
+				replyer := bufio.NewReader(forwardConn)
+				raw, _, err := readMessage(replyer)
+				if err != nil {
+					return true, err
+				}
+				log.Printf("%q", raw)
+				if _, err := conn.Write(raw); err != nil {
+					return true, err
+				}
 			}
 
 			return false, nil

src/config.go

@@ -3,17 +3,18 @@ package src
 import (
 	"context"
 	"encoding/json"
+	"fmt"
+	"net"
 	"os"
 	"slices"
 	"strings"
-
-	valkey "github.com/redis/go-redis/v9"
+	"sync"
 )
 
 type Config struct {
 	Listen   string `json:"LISTEN"`
 	Forwards string `json:"FORWARDS"`
-	forwards []*valkey.Client
+	forwards []*sync.Pool
 }
 
 func NewConfig(ctx context.Context) (Config, error) {
@@ -38,17 +39,19 @@ func NewConfig(ctx context.Context) (Config, error) {
 
 	forwards := strings.Split(config.Forwards, ",")
 	forwards = slices.DeleteFunc(forwards, func(s string) bool { return s == "" })
-	config.forwards = make([]*valkey.Client, len(forwards))
+	if len(forwards) == 0 {
+		return config, fmt.Errorf("at least one $FORWARD required")
+	}
+	config.forwards = make([]*sync.Pool, len(forwards))
 	for i := range forwards {
-		opt, err := valkey.ParseURL(forwards[i])
-		if err != nil {
-			config.Close()
-			return config, err
-		}
-		config.forwards[i] = valkey.NewClient(opt)
-		if err != nil {
-			config.Close()
-			return config, err
+		config.forwards[i] = &sync.Pool{
+			New: func() any {
+				v, err := (&net.Dialer{}).DialContext(ctx, "tcp", forwards[i])
+				if err != nil {
+					return nil
+				}
+				return v
+			},
 		}
 	}
 
@@ -58,7 +61,13 @@ func NewConfig(ctx context.Context) (Config, error) {
 func (c Config) Close() {
 	for i := range c.forwards {
 		if c.forwards[i] != nil {
-			c.forwards[i].Close()
+			c.forwards[i].New = nil
+			for {
+				got := c.forwards[i].Get()
+				if got != nil {
+					got.(net.Conn).Close()
+				}
+			}
 		}
 	}
 }