Wait Node Delayed Follow-up

/**
 * Demonstrates the wait node. Sends a welcome email immediately,
 * then waits 3 days before sending a check-in.
 */

webhook new_user {
  label: "New User"
  schema: @json {
    {
      "type": "object",
      "required": ["email", "name"],
      "properties": {
        "email": { "type": "string", "format": "email" },
        "name": { "type": "string" }
      }
    }
  }
}

graph delayed_followup {
  label: "Delayed Follow-up"

  root {
    type: code
    label: "Extract user"
    code: @ts { return context.nodes.root.input }
    outputSchema: @json {
      {
        "type": "object",
        "properties": {
          "email": { "type": "string", "format": "email" },
          "name": { "type": "string" }
        }
      }
    }
  }

  node send_welcome {
    type: resend
    label: "Send welcome"
    from: @ts { return "[email protected]" }
    to: @ts { return "[email protected]" }
    subject: @ts { return "Welcome, " + context.nodes.root.output.name + "!" }
    text: @ts {
      return "Hi " + context.nodes.root.output.name + ",\n\nWelcome aboard! We are excited to have you."
    }
  }

  node wait_3_days {
    type: wait
    label: "Wait 3 days"
    amount: 3
    unit: "days"
  }

  node send_checkin {
    type: resend
    label: "Send check-in"
    from: @ts { return "[email protected]" }
    to: @ts { return "[email protected]" }
    subject: @ts { return "How is it going, " + context.nodes.root.output.name + "?" }
    text: @ts {
      return "Hi " + context.nodes.root.output.name + ",\n\nJust checking in. Is there anything we can help you with? Reply to this email anytime."
    }
  }

  flow {
    root -> send_welcome
    send_welcome -> wait_3_days
    wait_3_days -> send_checkin
  }
}

trigger on_new_user {
  webhook:new_user -> delayed_followup
  enabled: true
}