metabuilder/packages/email_client/workflow/send-email.json

{
  "id": "send_email",
  "name": "Send Email",
  "version": "2.2.0",
  "description": "Compose and send an email message via SMTP",
  "packageId": "email_client",
  "startNode": "validate-recipients",
  "nodes": [
    {
      "id": "validate-recipients",
      "type": "operation",
      "op": "condition",
      "condition": "{{ $json.to && $json.to.length > 0 }}",
      "description": "Validate that recipients are provided",
      "onSuccess": {
        "nextNode": "validate-subject"
      },
      "onError": {
        "nextNode": "error-no-recipients"
      }
    },
    {
      "id": "validate-subject",
      "type": "operation",
      "op": "condition",
      "condition": "{{ $json.subject && $json.subject.length > 0 }}",
      "description": "Validate that subject is provided",
      "onSuccess": {
        "nextNode": "validate-body"
      },
      "onError": {
        "nextNode": "error-no-subject"
      }
    },
    {
      "id": "validate-body",
      "type": "operation",
      "op": "condition",
      "condition": "{{ $json.body && $json.body.length > 0 }}",
      "description": "Validate that message body is provided",
      "onSuccess": {
        "nextNode": "prepare-message"
      },
      "onError": {
        "nextNode": "error-no-body"
      }
    },
    {
      "id": "prepare-message",
      "type": "operation",
      "op": "transform",
      "mapping": {
        "to": "{{ $json.to }}",
        "cc": "{{ $json.cc || [] }}",
        "bcc": "{{ $json.bcc || [] }}",
        "subject": "{{ $json.subject }}",
        "body": "{{ $json.body }}",
        "htmlBody": "{{ $json.htmlBody || null }}",
        "from": "{{ $json.from }}",
        "replyTo": "{{ $json.replyTo || null }}",
        "attachments": "{{ $json.attachments || [] }}",
        "timestamp": "{{ Date.now() }}"
      },
      "description": "Prepare email message structure",
      "nextNode": "send-via-smtp"
    },
    {
      "id": "send-via-smtp",
      "type": "action",
      "action": "workflow.plugins.python",
      "plugin": "email.smtp.send",
      "description": "Send email via SMTP server",
      "params": {
        "accountId": "{{ $json.accountId }}",
        "to": "{{ $json.to }}",
        "cc": "{{ $json.cc }}",
        "bcc": "{{ $json.bcc }}",
        "subject": "{{ $json.subject }}",
        "textBody": "{{ $json.body }}",
        "htmlBody": "{{ $json.htmlBody }}",
        "attachments": "{{ $json.attachments }}"
      },
      "nextNode": "store-sent-message"
    },
    {
      "id": "store-sent-message",
      "type": "action",
      "action": "workflow.plugins.ts",
      "plugin": "dbal.create",
      "description": "Store sent message in database",
      "params": {
        "entity": "EmailMessage",
        "data": {
          "emailClientId": "{{ $json.accountId }}",
          "folderId": "{{ $json.sentFolderId }}",
          "from": "{{ $json.from }}",
          "to": "{{ $json.to }}",
          "cc": "{{ $json.cc }}",
          "bcc": "{{ $json.bcc }}",
          "subject": "{{ $json.subject }}",
          "textBody": "{{ $json.body }}",
          "htmlBody": "{{ $json.htmlBody }}",
          "isSent": true,
          "isRead": true,
          "receivedAt": "{{ Date.now() }}"
        }
      },
      "nextNode": "success-send"
    },
    {
      "id": "success-send",
      "type": "output",
      "output": {
        "status": "success",
        "message": "Email sent successfully",
        "timestamp": "{{ Date.now() }}"
      }
    },
    {
      "id": "error-no-recipients",
      "type": "output",
      "output": {
        "status": "error",
        "message": "No recipients specified",
        "error": "INVALID_RECIPIENTS"
      }
    },
    {
      "id": "error-no-subject",
      "type": "output",
      "output": {
        "status": "error",
        "message": "Email subject is required",
        "error": "INVALID_SUBJECT"
      }
    },
    {
      "id": "error-no-body",
      "type": "output",
      "output": {
        "status": "error",
        "message": "Email body is required",
        "error": "INVALID_BODY"
      }
    }
  ]
}