Custom SES email config from the builder (#91)

Author: patrislav

proto/builder/builder.gen.go

@@ -3,51 +3,50 @@ webrpc = v1 # TODO, use v2
 name = sequence-builder
 version = v0.1.0
 
-
 # db table: "email_templates"
 struct EmailTemplate
   - id: uint64
     + go.field.name = ID
     + go.tag.db = id,omitempty
-
   - templateType?: EmailTemplateType
     + go.field.name = TemplateType
     + go.tag.db = template_type
-
   - projectId: uint64
     + go.field.name = ProjectID
     + go.tag.db = project_id
-
   - subject: string
     + go.tag.db = subject
-
   - introText: string
     + go.tag.db = intro_text
-
   - logoUrl: string
     + go.field.name = LogoURL
     + go.tag.db = logo_url
-
   - template?: string
     + go.field.name = Template
     + go.tag.db = template
-
+  - fromEmail?: string
+    + go.tag.db = from_email
   - placeholders: []string
     + go.tag.db = placeholders
-
+  - sesConfig?: SESSettings
+    + go.tag.db = ses_config
   - createdAt: timestamp
     + json = createdAt
     + go.tag.db = created_at
-
   - updatedAt: timestamp
     + json = updatedAt
     + go.tag.db = updated_at
-
   - deletedAt?: timestamp
     + go.tag.db = deleted_at,omitempty
     + go.tag.json = deletedAt,omitempty
     + go.field.type = *time.Time
 
+struct SESSettings
+  - accessRoleARN: string
+    + go.field.name = AccessRoleARN
+  - sourceARN: string
+    + go.field.name = SourceARN
+
 enum EmailTemplateType: uint8
   - UNKNOWN
   - LOGIN

proto/builder/builder.ridl

@@ -111,6 +111,16 @@ func (p *AuthProvider) InitiateAuth(
 		HTML:      strings.Replace(*tpl.Template, "{auth_code}", secretCode, 1),
 		Text:      tpl.IntroText + "\n\n" + secretCode,
 	}
+
+	if tpl.FromEmail != nil {
+		msg.Source = *tpl.FromEmail
+	}
+
+	if tpl.SesConfig != nil {
+		msg.SourceARN = tpl.SesConfig.SourceARN
+		msg.AccessRoleARN = tpl.SesConfig.AccessRoleARN
+	}
+
 	if err := p.Sender.Send(ctx, msg); err != nil {
 		return nil, fmt.Errorf("failed to send email: %w", err)
 	}

rpc/auth/email/provider.go

@@ -5,10 +5,13 @@ import (
 )
 
 type Message struct {
-	Recipient string
-	Subject   string
-	HTML      string
-	Text      string
+	Recipient     string
+	Subject       string
+	HTML          string
+	Text          string
+	Source        string
+	SourceARN     string
+	AccessRoleARN string
 }
 
 type Sender interface {

rpc/auth/email/sender.go

@@ -12,39 +12,47 @@ import (
 )
 
 type sesSender struct {
-	client    *ses.Client
-	source    *string
-	sourceARN *string
+	cfg    config.SESConfig
+	awsCfg aws.Config
 }
 
 func NewSESSender(awsCfg aws.Config, cfg config.SESConfig) Sender {
-	if cfg.AccessRoleARN != "" {
+	sender := &sesSender{
+		cfg:    cfg,
+		awsCfg: awsCfg,
+	}
+
+	return sender
+}
+
+func (s *sesSender) Send(ctx context.Context, msg *Message) error {
+	awsCfg := s.awsCfg
+	accessRoleARN := s.cfg.AccessRoleARN
+	if msg.AccessRoleARN != "" {
+		accessRoleARN = msg.AccessRoleARN
+	}
+	if accessRoleARN != "" {
 		stsClient := sts.NewFromConfig(awsCfg)
-		creds := stscreds.NewAssumeRoleProvider(stsClient, cfg.AccessRoleARN)
+		creds := stscreds.NewAssumeRoleProvider(stsClient, accessRoleARN)
 		awsCfg.Credentials = aws.NewCredentialsCache(creds)
 	}
-
-	if cfg.Region != "" {
-		awsCfg.Region = cfg.Region
+	if s.cfg.Region != "" {
+		awsCfg.Region = s.cfg.Region
 	}
 
-	sender := &sesSender{
-		client: ses.NewFromConfig(awsCfg),
-	}
+	client := ses.NewFromConfig(awsCfg)
 
-	if cfg.Source != "" {
-		sender.source = &cfg.Source
+	source := &s.cfg.Source
+	if msg.Source != "" {
+		source = &msg.Source
 	}
 
-	if cfg.SourceARN != "" {
-		sender.sourceARN = &cfg.SourceARN
+	sourceARN := &s.cfg.SourceARN
+	if msg.SourceARN != "" {
+		sourceARN = &msg.SourceARN
 	}
 
-	return sender
-}
-
-func (s *sesSender) Send(ctx context.Context, msg *Message) error {
-	_, err := s.client.SendEmail(ctx, &ses.SendEmailInput{
+	_, err := client.SendEmail(ctx, &ses.SendEmailInput{
 		Destination: &types.Destination{
 			ToAddresses: []string{msg.Recipient},
 		},
@@ -64,8 +72,8 @@ func (s *sesSender) Send(ctx context.Context, msg *Message) error {
 				Charset: aws.String("UTF-8"),
 			},
 		},
-		Source:    s.source,
-		SourceArn: s.sourceARN,
+		Source:    source,
+		SourceArn: sourceARN,
 	})
 	return err
 }