metabuilder/packages/notification_center/workflow/dispatch.json

{
  "name": "Dispatch Notification",
  "active": false,
  "nodes": [
    {
      "id": "validate_context",
      "name": "Validate Context",
      "type": "metabuilder.validate",
      "typeVersion": 1,
      "position": [
        100,
        100
      ],
      "parameters": {
        "input": "{{ $context.tenantId }}",
        "operation": "validate",
        "validator": "required"
      }
    },
    {
      "id": "validate_input",
      "name": "Validate Input",
      "type": "metabuilder.validate",
      "typeVersion": 1,
      "position": [
        400,
        100
      ],
      "parameters": {
        "input": "{{ $json }}",
        "operation": "validate",
        "rules": {
          "userId": "required|string",
          "type": "required|string",
          "title": "required|string|maxLength:200",
          "message": "required|string|maxLength:1000",
          "channels": "required|array"
        }
      }
    },
    {
      "id": "fetch_user_preferences",
      "name": "Fetch User Preferences",
      "type": "metabuilder.database",
      "typeVersion": 1,
      "position": [
        700,
        100
      ],
      "parameters": {
        "filter": {
          "userId": "{{ $json.userId }}",
          "tenantId": "{{ $context.tenantId }}"
        },
        "operation": "database_read",
        "entity": "NotificationPreference"
      }
    },
    {
      "id": "create_notification_record",
      "name": "Create Notification Record",
      "type": "metabuilder.database",
      "typeVersion": 1,
      "position": [
        100,
        300
      ],
      "parameters": {
        "data": {
          "tenantId": "{{ $context.tenantId }}",
          "userId": "{{ $json.userId }}",
          "type": "{{ $json.type }}",
          "title": "{{ $json.title }}",
          "message": "{{ $json.message }}",
          "isRead": false,
          "metadata": "{{ $json.metadata || {} }}",
          "createdAt": "{{ new Date().toISOString() }}",
          "expiresAt": "{{ new Date(Date.now() + 30 * 24 * 60 * 60 * 1000).toISOString() }}"
        },
        "operation": "database_create",
        "entity": "Notification"
      }
    },
    {
      "id": "dispatch_in_app",
      "name": "Dispatch In App",
      "type": "metabuilder.condition",
      "typeVersion": 1,
      "position": [
        400,
        300
      ],
      "parameters": {
        "condition": "{{ $json.channels.includes('in_app') && $steps.fetch_user_preferences.output.enableInApp !== false }}",
        "operation": "condition"
      }
    },
    {
      "id": "emit_in_app_notification",
      "name": "Emit In App Notification",
      "type": "metabuilder.action",
      "typeVersion": 1,
      "position": [
        700,
        300
      ],
      "parameters": {
        "data": {
          "notificationId": "{{ $steps.create_notification_record.output.id }}",
          "title": "{{ $json.title }}",
          "message": "{{ $json.message }}",
          "type": "{{ $json.type }}"
        },
        "action": "emit_event",
        "event": "notification_received",
        "channel": "{{ 'user:' + $json.userId }}"
      }
    },
    {
      "id": "check_email_rate_limit",
      "name": "Check Email Rate Limit",
      "type": "metabuilder.condition",
      "typeVersion": 1,
      "position": [
        100,
        500
      ],
      "parameters": {
        "condition": "{{ $json.channels.includes('email') && $steps.fetch_user_preferences.output.enableEmail !== false }}",
        "operation": "condition"
      }
    },
    {
      "id": "apply_email_rate_limit",
      "name": "Apply Email Rate Limit",
      "type": "metabuilder.rateLimit",
      "typeVersion": 1,
      "position": [
        400,
        500
      ],
      "parameters": {
        "operation": "rate_limit",
        "key": "{{ 'email:' + $json.userId }}",
        "limit": 10,
        "window": 3600000
      }
    },
    {
      "id": "fetch_user_email",
      "name": "Fetch User Email",
      "type": "metabuilder.database",
      "typeVersion": 1,
      "position": [
        700,
        500
      ],
      "parameters": {
        "filter": {
          "id": "{{ $json.userId }}",
          "tenantId": "{{ $context.tenantId }}"
        },
        "operation": "database_read",
        "entity": "User"
      }
    },
    {
      "id": "send_email",
      "name": "Send Email via SMTP Relay",
      "type": "smtp-relay-send",
      "typeVersion": 1,
      "position": [
        100,
        700
      ],
      "parameters": {
        "to": "{{ $steps.fetch_user_email.output.email }}",
        "subject": "{{ $json.title }}",
        "body": "{{ $json.message }}",
        "template": "{{ $json.emailTemplate }}",
        "from": "{{ $env.SMTP_FROM_ADDRESS || 'noreply@metabuilder.local' }}",
        "retryAttempts": 3
      }
    },
    {
      "id": "dispatch_push",
      "name": "Dispatch Push",
      "type": "metabuilder.condition",
      "typeVersion": 1,
      "position": [
        400,
        700
      ],
      "parameters": {
        "condition": "{{ $json.channels.includes('push') && $steps.fetch_user_preferences.output.enablePush !== false }}",
        "operation": "condition"
      }
    },
    {
      "id": "send_push_notification",
      "name": "Send Push Notification",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 1,
      "position": [
        700,
        700
      ],
      "parameters": {
        "operation": "http_request",
        "url": "https://fcm.googleapis.com/fcm/send",
        "method": "POST",
        "headers": {
          "Authorization": "{{ 'Bearer ' + $env.FCM_KEY }}"
        },
        "body": {
          "to": "{{ $steps.fetch_user_email.output.fcmToken }}",
          "notification": {
            "title": "{{ $json.title }}",
            "body": "{{ $json.message }}"
          }
        }
      }
    },
    {
      "id": "return_success",
      "name": "Return Success",
      "type": "metabuilder.action",
      "typeVersion": 1,
      "position": [
        100,
        900
      ],
      "parameters": {
        "action": "http_response",
        "status": 202,
        "body": {
          "notificationId": "{{ $steps.create_notification_record.output.id }}",
          "message": "Notification dispatched successfully"
        }
      }
    }
  ],
  "connections": {
    "validate_context": {
      "main": [
        [
          {
            "node": "validate_input",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "validate_input": {
      "main": [
        [
          {
            "node": "fetch_user_preferences",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "fetch_user_preferences": {
      "main": [
        [
          {
            "node": "create_notification_record",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "create_notification_record": {
      "main": [
        [
          {
            "node": "dispatch_in_app",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "dispatch_in_app": {
      "main": [
        [
          {
            "node": "emit_in_app_notification",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "emit_in_app_notification": {
      "main": [
        [
          {
            "node": "check_email_rate_limit",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "check_email_rate_limit": {
      "main": [
        [
          {
            "node": "apply_email_rate_limit",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "apply_email_rate_limit": {
      "main": [
        [
          {
            "node": "fetch_user_email",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "fetch_user_email": {
      "main": [
        [
          {
            "node": "send_email",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "send_email": {
      "main": [
        [
          {
            "node": "dispatch_push",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "dispatch_push": {
      "main": [
        [
          {
            "node": "send_push_notification",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "send_push_notification": {
      "main": [
        [
          {
            "node": "return_success",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "staticData": {},
  "meta": {},
  "settings": {
    "timezone": "UTC",
    "executionTimeout": 3600,
    "saveExecutionProgress": true,
    "saveDataErrorExecution": "all",
    "saveDataSuccessExecution": "all"
  },
  "id": "workflow_dispatch",
  "version": "3.0.0",
  "tenantId": "${TENANT_ID}"
}