Implement notifications service with shared messaging and email drivers (#36)

backend/notifications/email/resend.go

@@ -0,0 +1,22 @@
+package email
+
+import (
+	"context"
+	"net/mail"
+
+	"git.sendico.io/tech/sxchnge/notifications/model"
+)
+
+type resend struct{ client }
+type resendRequest struct {
+	From    string   `json:"from"`
+	To      []string `json:"to"`
+	Subject string   `json:"subject"`
+	HTML    string   `json:"html,omitempty"`
+	Text    string   `json:"text,omitempty"`
+}
+
+func (s *resend) Send(ctx context.Context, key string, email model.Email) Outcome {
+	from := (&mail.Address{Name: s.settings.SenderName, Address: s.settings.SenderAddress}).String()
+	return s.post(ctx, key, resendRequest{From: from, To: []string{email.Address}, Subject: email.Subject, HTML: email.HTML, Text: email.Text})
+}