Sending email

cmd/api/api.go

@@ -25,6 +25,12 @@ type config struct {
 		secret string
 		key    string
 	}
+	smtp struct {
+		host     string
+		port     int
+		username string
+		password string
+	}
 }
 
 type application struct {
@@ -69,6 +75,10 @@ func main() {
 		"root:example@tcp(localhost:3306)/widgets?parseTime=true&tls=false",
 		"Application environment {development|production}",
 	)
+	flag.StringVar(&cfg.smtp.host, "smtphost", "0.0.0.0", "smtp host")
+	flag.IntVar(&cfg.smtp.port, "smtpport", 1025, "smtp host")
+	flag.StringVar(&cfg.smtp.username, "smtpuser", "user", "smtp user")
+	flag.StringVar(&cfg.smtp.password, "smtppwd", "password", "smtp password")
 
 	flag.Parse()
 

cmd/api/mailer.go

@@ -5,6 +5,9 @@ import (
 	"embed"
 	"fmt"
 	"text/template"
+	"time"
+
+	mail "github.com/xhit/go-simple-mail/v2"
 )
 
 //go:embed templates
@@ -42,5 +45,34 @@ func (app *application) SendMail(from, to, subject, tmpl string, data interface{
 
 	app.infoLog.Println(formattedMessage, plainMessage)
 
+	// send the mail
+	server := mail.NewSMTPClient()
+	server.Host = app.config.smtp.host
+	server.Port = app.config.smtp.port
+	// NOTE: not needed for MailHog
+	// server.Username = app.config.smtp.username
+	// server.Password = app.config.smtp.password
+	// server.Encryption = mail.EncryptionTLS
+	server.KeepAlive = false
+	server.ConnectTimeout = 10 * time.Second
+	server.SendTimeout = 10 * time.Second
+
+	smtpClient, err := server.Connect()
+	if err != nil {
+		return err
+	}
+	email := mail.NewMSG()
+	email.SetFrom(from).AddTo(to).SetSubject(subject)
+	email.SetBody(mail.TextHTML, formattedMessage)
+	email.AddAlternative(mail.TextPlain, plainMessage)
+
+	err = email.Send(smtpClient)
+	if err != nil {
+		app.errorLog.Println(err)
+		return err
+	}
+
+	app.infoLog.Println("send mail")
+
 	return nil
 }