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
 }

go.mod

@@ -9,7 +9,12 @@ require (
 	github.com/go-chi/cors v1.2.1
 	github.com/go-sql-driver/mysql v1.8.1
 	github.com/stripe/stripe-go/v79 v79.6.0
+	github.com/xhit/go-simple-mail/v2 v2.16.0
 	golang.org/x/crypto v0.26.0
 )
 
-require filippo.io/edwards25519 v1.1.0 // indirect
+require (
+	filippo.io/edwards25519 v1.1.0 // indirect
+	github.com/go-test/deep v1.1.1 // indirect
+	github.com/toorop/go-dkim v0.0.0-20201103131630-e1cd1a0a5208 // indirect
+)

go.sum

@@ -13,6 +13,8 @@ github.com/go-chi/cors v1.2.1/go.mod h1:sSbTewc+6wYHBBCW7ytsFSn836hqM7JxpglAy2Vz
 github.com/go-sql-driver/mysql v1.7.1/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
 github.com/go-sql-driver/mysql v1.8.1 h1:LedoTUt/eveggdHS9qUFC1EFSa8bU2+1pZjSRpvNJ1Y=
 github.com/go-sql-driver/mysql v1.8.1/go.mod h1:wEBSXgmK//2ZFJyE+qWnIsVGmvmEKlqwuVSjsCm7DZg=
+github.com/go-test/deep v1.1.1 h1:0r/53hagsehfO4bzD2Pgr/+RgHqhmf+k1Bpse2cTu1U=
+github.com/go-test/deep v1.1.1/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE=
 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/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -20,6 +22,10 @@ github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5Cc
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stripe/stripe-go/v79 v79.6.0 h1:qSBV2f2rpLEEZTdTlVLzdmQJZNmfoo2E3hUEkFT8GBc=
 github.com/stripe/stripe-go/v79 v79.6.0/go.mod h1:cuH6X0zC8peY6f1AubHwgJ/fJSn2dh5pfiCr6CjyKVU=
+github.com/toorop/go-dkim v0.0.0-20201103131630-e1cd1a0a5208 h1:PM5hJF7HVfNWmCjMdEfbuOBNXSVF2cMFGgQTPdKCbwM=
+github.com/toorop/go-dkim v0.0.0-20201103131630-e1cd1a0a5208/go.mod h1:BzWtXXrXzZUvMacR0oF/fbDDgUPO8L36tDMmRAf14ns=
+github.com/xhit/go-simple-mail/v2 v2.16.0 h1:ouGy/Ww4kuaqu2E2UrDw7SvLaziWTB60ICLkIkNVccA=
+github.com/xhit/go-simple-mail/v2 v2.16.0/go.mod h1:b7P5ygho6SYE+VIqpxA6QkYfv4teeyG4MKqB3utRu98=
 golang.org/x/crypto v0.26.0 h1:RrRspgV4mU+YwB4FYnuBoKsUapNIL5cohGAmSH3azsw=
 golang.org/x/crypto v0.26.0/go.mod h1:GY7jblb9wI+FOo5y8/S2oY4zWP07AkOJ4+jxCqdqn54=
 golang.org/x/net v0.0.0-20210520170846-37e1c6afe023/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=