go/mgmailer/mailer.go

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2024-11-17 14:25:13 +00:00
package mgmailer
import (
"context"
"fmt"
"sync/atomic"
"time"
"github.com/mailgun/mailgun-go/v4"
)
type Config struct {
MailgunDomain string
MailgunAPIKey string
SenderEmail string
SenderName string
}
type Mailer struct {
conf atomic.Pointer[Config]
mg atomic.Pointer[mailgun.MailgunImpl]
}
func (m *Mailer) Update(conf Config) {
m.conf.Store(&conf)
m.mg.Store(mailgun.NewMailgun(conf.MailgunDomain, conf.MailgunAPIKey))
}
func (m *Mailer) Send(subject, body, to string) error {
mg := m.mg.Load()
conf := m.conf.Load()
message := mailgun.NewMessage(
fmt.Sprintf("%s <%s>", conf.SenderName, conf.SenderEmail),
subject,
body,
to)
ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
defer cancel()
_, _, err := mg.Send(ctx, message)
return err
}