.env

@@ -4,7 +4,6 @@ APIKEY=lfk
 EVENTNAME=Lauf für Kaya! 2025
 CURRENCYSYMBOL=€
 GOTENBERG_BASEURL=http://localhost:3001
-REDIS_ADDR=localhost:6379
 
 CARD_SUBTITLE=Kaya ist cool
 CARD_BARCODEFORMAT=ean13

README.md

@@ -68,29 +68,3 @@ docker build -t registry.odit.services/lfk/document-server:latest .
 # multiarch
 docker buildx build --platform=linux/amd64,linux/arm64 -t registry.odit.services/lfk/document-server:latest --push .
 ```
-
-## ⏱️ Benchmarks
-
-### Barcode Generation
-
-- Requests: 10000
-- Concurrency: Unlimited
-- Data: `123456789123`
-- Width: 1000
-- Height: 500
-
-#### No cache
-
-| Format  | Requests/sec | Slowest | Fastest | Average |
-| ------- | ------------ | ------- | ------- | ------- |
-| Code128 | 763.3996     | 0.7995  | 0.0172  | 0.0654  |
-| EAN13   | 767.1170     | 0.7607  | 0.0171  | 0.0651  |
-| QR      | 683.8472     | 0.6528  | 0.0178  | 0.0730  |
-
-#### Redis cache
-
-| Format  | Requests/sec | Slowest | Fastest | Average |
-| ------- | ------------ | ------- | ------- | ------- |
-| Code128 | 15611.5521   | 0.0965  | 0.0006  | 0.0032  |
-| EAN13   | 14985.4401   | 0.0925  | 0.0006  | 0.0033  |
-| QR      | 14306.2540   | 0.1143  | 0.0005  | 0.0035  |

docker-compose.dev.yaml

@@ -2,8 +2,4 @@ services:
   gotenberg:
     image: gotenberg/gotenberg:8
     ports:
-      - "3001:3000"
-  redis:
-    image: docker.dragonflydb.io/dragonflydb/dragonfly
-    ports:
-      - "6379:6379"
+      - "3001:3000"

docker-compose.yaml

@@ -8,8 +8,4 @@ services:
   gotenberg:
     image: gotenberg/gotenberg:8
     ports:
-      - "3001:3000"
-  redis:
-    image: docker.dragonflydb.io/dragonflydb/dragonfly
-    ports:
-      - "6379:6379"
+      - "3001:3000"

docker.env

@@ -4,7 +4,6 @@ APIKEY=lfk
 EVENTNAME=Lauf für Kaya! 2025
 CURRENCYSYMBOL=€
 GOTENBERG_BASEURL=http://gotenberg:3000
-REDIS_ADDR=redis:6379
 
 CARD_SUBTITLE=Kaya ist cool
 CARD_BARCODEFORMAT=ean13

go.mod

@@ -14,8 +14,6 @@ require (
 	github.com/KyleBanks/depth v1.2.1 // indirect
 	github.com/andybalholm/brotli v1.1.1 // indirect
 	github.com/boombuler/barcode v1.0.2 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/go-openapi/jsonpointer v0.21.0 // indirect
 	github.com/go-openapi/jsonreference v0.21.0 // indirect
@@ -34,7 +32,6 @@ require (
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/oxplot/papersizes v0.0.0-20181201065918-90a3a5ae1915 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
-	github.com/redis/go-redis/v9 v9.7.0 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/sagikazarmark/locafero v0.4.0 // indirect
 	github.com/sagikazarmark/slog-shim v0.1.0 // indirect

go.sum

@@ -4,13 +4,9 @@ github.com/andybalholm/brotli v1.1.1 h1:PR2pgnyFznKEugtsUo0xLdDop5SKXd5Qf5ysW+7X
 github.com/andybalholm/brotli v1.1.1/go.mod h1:05ib4cKhjx3OQYUY22hTVd34Bc8upXjOLL2rKwwZBoA=
 github.com/boombuler/barcode v1.0.2 h1:79yrbttoZrLGkL/oOI8hBrUKucwOL0oOjUgEguGMcJ4=
 github.com/boombuler/barcode v1.0.2/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
-github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
 github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
 github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
 github.com/go-openapi/jsonpointer v0.21.0 h1:YgdVicSA9vH5RiHs9TZW5oyafXZFc6+2Vc1rr/O9oNQ=
@@ -58,8 +54,6 @@ github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6
 github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/redis/go-redis/v9 v9.7.0 h1:HhLSs+B6O021gwzl+locl0zEDnyNkxMtf/Z3NNBMa9E=
-github.com/redis/go-redis/v9 v9.7.0/go.mod h1:f6zhXITC7JUJIlPEiBOTXxJgPLdZcA93GewI7inzyWw=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=

main.go

@@ -12,7 +12,6 @@ import (
 	"github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/middleware/keyauth"
 	"github.com/gofiber/swagger"
-	"github.com/redis/go-redis/v9"
 	"github.com/spf13/viper"
 )
 
@@ -74,17 +73,7 @@ func main() {
 		log.Fatal(err)
 	}
 
-	var redisClient *redis.Client
-	if config.RedisAddr != "" {
-		log.Println("Using redis at", config.RedisAddr)
-		redisClient = redis.NewClient(&redis.Options{
-			Addr: config.RedisAddr,
-		})
-	}
-
-	barcodeGenerator := &services.DefaultBarcodeService{
-		RedisClient: redisClient,
-	}
+	barcodeGenerator := &services.DefaultBarcodeService{}
 	staticService := &services.DefaultStaticService{
 		Cache: make(map[string]string),
 	}

models/config.go

@@ -15,5 +15,4 @@ type Config struct {
 	SponsoringBarcodePrefix  string `mapstructure:"SPONSORING_BARCODEPREFIX"`
 	CertificateFooter        string `mapstructure:"CERTIFICATE_FOOTER"`
 	GotenbergBaseUrl         string `mapstructure:"GOTENBERG_BASEURL"`
-	RedisAddr                string `mapstructure:"REDIS_ADDR"`
 }

services/barcode.go

@@ -2,18 +2,14 @@ package services
 
 import (
 	"bytes"
-	"context"
 	"fmt"
 	"image/png"
-	"log"
 	"slices"
-	"time"
 
 	"github.com/boombuler/barcode"
 	"github.com/boombuler/barcode/code128"
 	"github.com/boombuler/barcode/ean"
 	"github.com/boombuler/barcode/qr"
-	"github.com/redis/go-redis/v9"
 )
 
 type BarcodeService interface {
@@ -22,26 +18,13 @@ type BarcodeService interface {
 }
 
 type DefaultBarcodeService struct {
-	RedisClient *redis.Client
 }
 
 func (b *DefaultBarcodeService) GenerateBarcode(format string, content string, width int, height int) (bytes.Buffer, error) {
-	ctx := context.Background()
-
 	if !b.IsTypeSupported(format) {
 		return bytes.Buffer{}, fmt.Errorf("unsupported barcode type: %s", format)
 	}
 
-	if b.RedisClient != nil {
-		cachedBarcode, err := b.RedisClient.Get(ctx, fmt.Sprintf("barcode:%s:%s:%d:%d", format, content, width, height)).Result()
-		if err == nil {
-			log.Printf("Cache hit for barcode:%s:%s:%d:%d", format, content, width, height)
-			buf := bytes.Buffer{}
-			buf.Write([]byte(cachedBarcode))
-			return buf, nil
-		}
-	}
-
 	var generatedCode barcode.Barcode
 	var err error
 
@@ -77,13 +60,6 @@ func (b *DefaultBarcodeService) GenerateBarcode(format string, content string, w
 		return bytes.Buffer{}, err
 	}
 
-	if b.RedisClient != nil {
-		err = b.RedisClient.Set(ctx, fmt.Sprintf("barcode:%s:%s:%d:%d", format, content, width, height), buf.String(), 10*time.Minute).Err()
-		if err != nil {
-			return bytes.Buffer{}, err
-		}
-	}
-
 	return buf, nil
 }