More optimizations and error handling

src/main.go

@@ -3,16 +3,18 @@ package main
 import (
 	"fmt"
 	"log"
+	"net/http"
 	"os"
 	"strconv"
 	"sync"
 
 	"github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/middleware/cors"
+	"github.com/gofiber/fiber/v2/middleware/recover"
 )
 
 var (
-	app                 *fiber.App  = fiber.New(fiber.Config{DisableStartupMessage: true})
+	app                 *fiber.App  = nil
 	r                   *Redis      = &Redis{}
 	config              *Config     = &Config{}
 	blockedServers      []string    = nil
@@ -20,6 +22,15 @@ var (
 )
 
 func init() {
+	app = fiber.New(fiber.Config{
+		DisableStartupMessage: true,
+		ErrorHandler: func(ctx *fiber.Ctx, err error) error {
+			log.Println(err)
+
+			return ctx.SendStatus(http.StatusInternalServerError)
+		},
+	})
+
 	if err := config.ReadFile("config.yml"); err != nil {
 		log.Fatal(err)
 	}
@@ -55,6 +66,8 @@ func init() {
 		AllowMethods:  "HEAD,OPTIONS,GET",
 		ExposeHeaders: "Content-Type,X-Cache-Time-Remaining",
 	}))
+
+	app.Use(recover.New())
 }
 
 func main() {

src/redis.go

@@ -75,9 +75,9 @@ func (r *Redis) TTL(key string) (time.Duration, error) {
 	return res.Result()
 }
 
-func (r *Redis) GetJSON(key string, value interface{}) error {
+func (r *Redis) GetString(key string) (string, error) {
 	if !r.Enabled {
-		return nil
+		return "", nil
 	}
 
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
@@ -87,16 +87,10 @@ func (r *Redis) GetJSON(key string, value interface{}) error {
 	res := r.Client.Get(ctx, key)
 
 	if err := res.Err(); err != nil {
-		return err
+		return "", nil
 	}
 
-	data, err := res.Bytes()
+	return res.Result()
-
-	if err != nil {
-		return err
-	}
-
-	return json.Unmarshal(data, value)
 }
 
 func (r *Redis) GetBytes(key string) ([]byte, error) {

src/routes.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"log"
 	"net/http"
 	"strconv"
 
@@ -23,8 +22,6 @@ func JavaStatusHandler(ctx *fiber.Ctx) error {
 	host, port, err := ParseAddress(ctx.Params("address"), 25565)
 
 	if err != nil {
-		log.Println(err)
-
 		return ctx.Status(http.StatusBadRequest).SendString("Invalid address value")
 	}
 
@@ -38,7 +35,7 @@ func JavaStatusHandler(ctx *fiber.Ctx) error {
 		ctx.Set("X-Cache-Time-Remaining", strconv.Itoa(int(expiresAt.Seconds())))
 	}
 
-	return ctx.JSON(response)
+	return ctx.SendString(response)
 }
 
 func BedrockStatusHandler(ctx *fiber.Ctx) error {
@@ -58,7 +55,7 @@ func BedrockStatusHandler(ctx *fiber.Ctx) error {
 		ctx.Set("X-Cache-Time-Remaining", strconv.Itoa(int(expiresAt.Seconds())))
 	}
 
-	return ctx.JSON(response)
+	return ctx.SendString(response)
 }
 
 func IconHandler(ctx *fiber.Ctx) error {

src/status.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"encoding/base64"
+	"encoding/json"
 	"fmt"
 	"strings"
 	"time"
@@ -76,20 +77,20 @@ type Mod struct {
 	Version string `json:"version"`
 }
 
-func GetJavaStatus(host string, port uint16) (interface{}, *time.Duration, error) {
+func GetJavaStatus(host string, port uint16) (string, *time.Duration, error) {
 	cacheKey := fmt.Sprintf("java:%s-%d", host, port)
 
 	cacheExists, err := r.Exists(cacheKey)
 
 	if err != nil {
-		return nil, nil, err
+		return "", nil, err
 	}
 
 	if cacheExists {
-		var response JavaStatusResponse
+		response, err := r.GetString(cacheKey)
 
-		if err = r.GetJSON(cacheKey, &response); err != nil {
+		if err != nil {
-			return nil, nil, err
+			return "", nil, err
 		}
 
 		expiresAt, err := r.TTL(cacheKey)
@@ -97,29 +98,33 @@ func GetJavaStatus(host string, port uint16) (interface{}, *time.Duration, error
 		return response, &expiresAt, err
 	}
 
-	response := FetchJavaStatus(host, port)
+	response, err := json.Marshal(FetchJavaStatus(host, port))
 
-	if err := r.SetJSON(cacheKey, response, config.Cache.JavaCacheDuration); err != nil {
+	if err != nil {
-		return nil, nil, err
+		return "", nil, err
 	}
 
-	return response, nil, nil
+	if err := r.Set(cacheKey, response, config.Cache.JavaCacheDuration); err != nil {
+		return "", nil, err
+	}
+
+	return string(response), nil, nil
 }
 
-func GetBedrockStatus(host string, port uint16) (interface{}, *time.Duration, error) {
+func GetBedrockStatus(host string, port uint16) (string, *time.Duration, error) {
 	cacheKey := fmt.Sprintf("bedrock:%s-%d", host, port)
 
 	cacheExists, err := r.Exists(cacheKey)
 
 	if err != nil {
-		return nil, nil, err
+		return "", nil, err
 	}
 
 	if cacheExists {
-		var response BedrockStatusResponse
+		response, err := r.GetString(cacheKey)
 
-		if err = r.GetJSON(cacheKey, &response); err != nil {
+		if err != nil {
-			return nil, nil, err
+			return "", nil, err
 		}
 
 		expiresAt, err := r.TTL(cacheKey)
@@ -127,13 +132,17 @@ func GetBedrockStatus(host string, port uint16) (interface{}, *time.Duration, er
 		return response, &expiresAt, err
 	}
 
-	response := FetchBedrockStatus(host, port)
+	response, err := json.Marshal(FetchBedrockStatus(host, port))
 
-	if err := r.SetJSON(cacheKey, response, config.Cache.BedrockCacheDuration); err != nil {
+	if err != nil {
-		return nil, nil, err
+		return "", nil, err
 	}
 
-	return response, nil, nil
+	if err := r.Set(cacheKey, response, config.Cache.BedrockCacheDuration); err != nil {
+		return "", nil, err
+	}
+
+	return string(response), nil, nil
 }
 
 func GetServerIcon(host string, port uint16) ([]byte, error) {