Initial work on a redis-queue backed email sending feature with a little demo.

Makefile

@@ -10,6 +10,8 @@ build: cmds
 
 cmds:
 	go build -o bin/fgen ./tools/cmd/fgen
+	go build -o bin/qmgr ./tools/cmd/qmgr
+	go build -o bin/mailer ./tools/cmd/mailer
 
 site:
 	go tool ssgod

data/models.go

@@ -31,3 +31,12 @@ func Models() map[string]reflect.Type {
     "null_example": reflect.TypeFor[NullExample](),
   }
 }
+
+type EmailMessage struct {
+  To string
+  From string
+  Subject string
+  Text string
+  HTML string
+}
+

features/email/api.go

@@ -0,0 +1,15 @@
+package features_email
+
+import (
+  "github.com/gofiber/fiber/v2"
+)
+
+func GetApiExample(c *fiber.Ctx) error {
+  tables := []string{"test", "that"}
+
+  return c.JSON(tables)
+}
+
+func SetupApi(app *fiber.App) {
+  app.Get("/api/email/example", GetApiExample)
+}

features/email/db.go

@@ -0,0 +1,9 @@
+package features_email
+
+import (
+//   "MY/webapp/data"
+//   _ "github.com/mattn/go-sqlite3"
+//   sq "github.com/Masterminds/squirrel"
+)
+
+

features/email/init.go

@@ -0,0 +1,10 @@
+package features_email
+
+import (
+  "github.com/gofiber/fiber/v2"
+)
+
+func Setup(app *fiber.App) {
+  SetupApi(app)
+  SetupViews(app)
+}

features/email/views.go

@@ -0,0 +1,11 @@
+package features_email
+
+import (
+  "github.com/gofiber/fiber/v2"
+  . "MY/webapp/common"
+)
+
+func SetupViews(app *fiber.App) {
+  err := ConfigViews(app, "views/email")
+  if err != nil { panic(err) }
+}

features/init.go

@@ -2,7 +2,9 @@ package features
 
 import (
   "github.com/gofiber/fiber/v2"
+  email "MY/webapp/features/email"
 )
 
 func Setup(app *fiber.App) {
+  email.Setup(app)
 }

go.mod

@@ -12,18 +12,21 @@ require (
 	github.com/guregu/null/v6 v6.0.0
 	github.com/jmoiron/sqlx v1.4.0
 	github.com/mattn/go-sqlite3 v1.14.32
+	github.com/redis/go-redis/v9 v9.17.2
 	github.com/stretchr/testify v1.11.1
+	github.com/wneessen/go-mail v0.7.2
 	golang.org/x/crypto v0.43.0
-	golang.org/x/net v0.46.0
 )
 
 require (
 	github.com/andybalholm/brotli v1.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d // indirect
 	github.com/chromedp/sysutil v1.1.0 // indirect
 	github.com/clipperhouse/stringish v0.1.1 // indirect
 	github.com/clipperhouse/uax29/v2 v2.3.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/fsnotify/fsnotify v1.9.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.11 // indirect
 	github.com/go-json-experiment/json v0.0.0-20251027170946-4849db3c2f7e // indirect

go.sum

@@ -6,6 +6,12 @@ github.com/Masterminds/squirrel v1.5.4 h1:uUcX/aBc8O7Fg9kaISIUsHXdKuqehiXAMQTYX8
 github.com/Masterminds/squirrel v1.5.4/go.mod h1:NNaOrjSoIDfDA40n7sr2tPNZRfjzjA400rg+riTZj10=
 github.com/andybalholm/brotli v1.2.0 h1:ukwgCxwYrmACq68yiUqwIWnGY0cTPox/M94sVwToPjQ=
 github.com/andybalholm/brotli v1.2.0/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
+github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
+github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
+github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
+github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d h1:ZtA1sedVbEW7EW80Iz2GR3Ye6PwbJAJXjv7D74xG6HU=
 github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d/go.mod h1:NItd7aLkcfOA/dcMXvl8p1u+lQqioRMq/SqDp71Pb/k=
 github.com/chromedp/chromedp v0.14.2 h1:r3b/WtwM50RsBZHMUm9fsNhhzRStTHrKdr2zmwbZSzM=
@@ -19,6 +25,8 @@ github.com/clipperhouse/uax29/v2 v2.3.0/go.mod h1:Wn1g7MK6OoeDT0vL+Q0SQLDz/KpfsV
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 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 v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
 github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
 github.com/gabriel-vasile/mimetype v1.4.11 h1:AQvxbp830wPhHTqc1u7nzoLT+ZFxGY7emj5DR5DYFik=
@@ -89,6 +97,8 @@ github.com/orisano/pixelmatch v0.0.0-20220722002657-fb0b55479cde h1:x0TT0RDC7UhA
 github.com/orisano/pixelmatch v0.0.0-20220722002657-fb0b55479cde/go.mod h1:nZgzbfBr3hhjoZnS66nKrHmduYNpc34ny7RK4z5/HM0=
 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 v9.17.2 h1:P2EGsA4qVIM3Pp+aPocCJ7DguDHhqrXNhVcEp4ViluI=
+github.com/redis/go-redis/v9 v9.17.2/go.mod h1:u410H11HMLoB+TP67dz8rL9s6QW2j76l0//kSOd3370=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
 github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
 github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
@@ -99,14 +109,14 @@ github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6Kllzaw
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasthttp v1.68.0 h1:v12Nx16iepr8r9ySOwqI+5RBJ/DqTxhOy1HrHoDFnok=
 github.com/valyala/fasthttp v1.68.0/go.mod h1:5EXiRfYQAoiO/khu4oU9VISC/eVY6JqmSpPJoHCKsz4=
+github.com/wneessen/go-mail v0.7.2 h1:xxPnhZ6IZLSgxShebmZ6DPKh1b6OJcoHfzy7UjOkzS8=
+github.com/wneessen/go-mail v0.7.2/go.mod h1:+TkW6QP3EVkgTEqHtVmnAE/1MRhmzb8Y9/W3pweuS+k=
 github.com/xyproto/randomstring v1.0.5 h1:YtlWPoRdgMu3NZtP45drfy1GKoojuR7hmRcnhZqKjWU=
 github.com/xyproto/randomstring v1.0.5/go.mod h1:rgmS5DeNXLivK7YprL0pY+lTuhNQW3iGxZ18UQApw/E=
 github.com/yuin/goldmark v1.7.13 h1:GPddIs617DnBLFFVJFgpo1aBfe/4xcvMc3SB5t/D0pA=
 github.com/yuin/goldmark v1.7.13/go.mod h1:ip/1k0VRfGynBgxOz0yCqHrbZXhcjxyuS66Brc7iBKg=
 golang.org/x/crypto v0.43.0 h1:dduJYIi3A3KOfdGOHX8AVZ/jGiyPa3IbBozJ5kNuE04=
 golang.org/x/crypto v0.43.0/go.mod h1:BFbav4mRNlXJL4wNeejLpWxB7wMbc79PdRGhWKncxR0=
-golang.org/x/net v0.46.0 h1:giFlY12I07fugqwPuWJi68oOnpfqFnJIJzaIIm2JVV4=
-golang.org/x/net v0.46.0/go.mod h1:Q9BGdFy1y4nkUwiLvT5qtyhAnEHgnQ/zd8PfU6nc210=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.37.0 h1:fdNQudmxPjkdUTPnLn5mdQv7Zwvbvpaxqs831goi9kQ=
 golang.org/x/sys v0.37.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=

static/style.css

@@ -307,9 +307,6 @@
   .min-w-md {
     min-width: var(--container-md);
   }
-  .grow {
-    flex-grow: 1;
-  }
   .transform {
     transform: var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,);
   }
@@ -398,11 +395,6 @@
       }
     }
   }
-  .debug {
-    border-style: var(--tw-border-style) !important;
-    border-width: 1px !important;
-    border-color: var(--color-red-900) !important;
-  }
   .border-1 {
     border-style: var(--tw-border-style);
     border-width: 1px;

tools/cmd/mailer/main.go

@@ -0,0 +1,75 @@
+package main
+
+import (
+  "github.com/wneessen/go-mail"
+  "fmt"
+  "context"
+  "github.com/redis/go-redis/v9"
+  "time"
+  "encoding/json"
+  "MY/webapp/data"
+)
+
+func SendEmail(msg data.EmailMessage) {
+  email_msg := mail.NewMsg()
+  err := email_msg.From(msg.From)
+  if err != nil { panic(err) }
+
+  err = email_msg.To(msg.To)
+  if err != nil { panic(err) }
+
+  email_msg.Subject(msg.Subject)
+  email_msg.SetBodyString(mail.TypeTextPlain, msg.Text)
+  email_msg.SetBodyString(mail.TypeTextHTML, msg.HTML)
+
+  client, err := mail.NewClient("localhost",
+    mail.WithPort(1025),
+    mail.WithTLSPolicy(mail.NoTLS))
+
+  if err != nil { panic(err) }
+
+  err = client.DialAndSend(email_msg)
+  if err != nil { panic(err) }
+}
+
+func LoadMessage(result string) data.EmailMessage {
+  var msg data.EmailMessage
+
+  err := json.Unmarshal([]byte(result), &msg)
+  if err != nil { panic(err) }
+
+  return msg
+}
+
+func EmailListener(ctx context.Context) {
+  client := redis.NewClient(&redis.Options{
+    Addr: "127.0.0.1:6379",
+    Password: "",
+    DB: 0,
+  })
+
+  for {
+    result, err := client.BRPop(ctx, 0, "queue").Result()
+
+    if err != nil { panic(err) }
+
+    fmt.Printf("received: %v\n", result)
+
+    // NOTE: 0=queue name, 1=message
+    msg := LoadMessage(result[1])
+
+    SendEmail(msg)
+
+    fmt.Println("SENT EMAIL")
+  }
+}
+
+func main() {
+  ctx := context.Background()
+
+  go EmailListener(ctx)
+
+  time.Sleep(time.Second * 100)
+}
+
+

tools/cmd/qmgr/main.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+  "context"
+  "github.com/redis/go-redis/v9"
+  "encoding/json"
+  "fmt"
+  "MY/webapp/data"
+)
+
+func producer(ctx context.Context) {
+  client := redis.NewClient(&redis.Options{
+    Addr: "127.0.0.1:6379",
+    Password: "",
+    DB: 0,
+  })
+
+  _, err := client.Ping(ctx).Result()
+  if err != nil { panic(err) }
+
+  msg := data.EmailMessage{
+    To: "tina.recip@example.com",
+    From: "toni.sender@example.com",
+    Subject: "This is my first mail.", 
+    Text: fmt.Sprintf("Random number %v", 200),
+    HTML: fmt.Sprintf("<h1>Random number %v</h1>", 200),
+  }
+
+  msg_json, err := json.Marshal(msg)
+  if err != nil { panic(err) }
+
+  _, err = client.LPush(ctx, "queue", string(msg_json)).Result()
+  if err != nil { panic(err) }
+}
+
+func main() {
+  ctx := context.Background()
+  producer(ctx)
+}