Todo Reminder

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "name": "12 - Todo Reminder",
  "nodes": [
    {
      "id": "trig",
      "name": "Every 15 Minutes",
      "type": "n8n-nodes-base.scheduleTrigger",
      "typeVersion": 1.2,
      "position": [
        100,
        300
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "minutes",
              "minutesInterval": 15
            }
          ]
        }
      }
    },
    {
      "id": "n-owner",
      "name": "Get Owner",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        320,
        300
      ],
      "parameters": {
        "method": "GET",
        "url": "http://host.docker.internal:4242/brain/owner",
        "options": {
          "timeout": 5000
        }
      }
    },
    {
      "id": "n-todos",
      "name": "Get Due Reminders",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        540,
        300
      ],
      "parameters": {
        "method": "GET",
        "url": "http://host.docker.internal:4242/brain/todos",
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "chat_id",
              "value": "={{ $('Get Owner').item.json.chat_id }}"
            },
            {
              "name": "due_soon",
              "value": "15"
            }
          ]
        },
        "options": {
          "response": {
            "response": {
              "neverError": true
            }
          },
          "timeout": 5000
        }
      }
    },
    {
      "id": "n-has-todos",
      "name": "Any Reminders?",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2,
      "position": [
        760,
        300
      ],
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict"
          },
          "conditions": [
            {
              "id": "c1",
              "leftValue": "={{ $json.count }}",
              "rightValue": 0,
              "operator": {
                "type": "number",
                "operation": "gt"
              }
            }
          ]
        }
      }
    },
    {
      "id": "n-split",
      "name": "Split Todos",
      "type": "n8n-nodes-base.splitOut",
      "typeVersion": 1,
      "position": [
        980,
        200
      ],
      "parameters": {
        "fieldToSplitOut": "todos",
        "options": {}
      }
    },
    {
      "id": "n-send",
      "name": "Send Reminder",
      "type": "n8n-nodes-base.telegram",
      "typeVersion": 1.2,
      "position": [
        1200,
        200
      ],
      "parameters": {
        "chatId": "={{ $('Get Owner').item.json.chat_id }}",
        "text": "\u23f0 *Reminder:* {{ $json.task }}\n{{ $json.due_at ? '_Due: ' + $json.due_at.slice(0,16).replace('T',' ') + ' UTC_' : '' }}",
        "additionalFields": {
          "parse_mode": "Markdown"
        }
      },
      "credentials": {
        "telegramApi": {
          "name": "<your credential>"
        }
      },
      "continueOnFail": true
    },
    {
      "id": "n-mark-sent",
      "name": "Mark Reminder Sent",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1420,
        200
      ],
      "parameters": {
        "method": "PATCH",
        "url": "=http://host.docker.internal:4242/brain/todo/{{ $json.id }}",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "{\"reminder_sent\": true}",
        "options": {
          "response": {
            "response": {
              "neverError": true
            }
          },
          "timeout": 5000
        }
      },
      "continueOnFail": true
    }
  ],
  "connections": {
    "Every 15 Minutes": {
      "main": [
        [
          {
            "node": "Get Owner",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get Owner": {
      "main": [
        [
          {
            "node": "Get Due Reminders",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get Due Reminders": {
      "main": [
        [
          {
            "node": "Any Reminders?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Any Reminders?": {
      "main": [
        [
          {
            "node": "Split Todos",
            "type": "main",
            "index": 0
          }
        ],
        []
      ]
    },
    "Split Todos": {
      "main": [
        [
          {
            "node": "Send Reminder",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Send Reminder": {
      "main": [
        [
          {
            "node": "Mark Reminder Sent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "meta": {
    "description": "Polls every 15 minutes for todos with remind_at within the next 15 minutes. Sends Telegram message and marks reminder_sent=true to prevent duplicates."
  }
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• telegramApi

About this workflow

12 - Todo Reminder. Uses httpRequest, telegram. Scheduled trigger; 7 nodes.

Source: https://github.com/rohankag/ronkbot/blob/db03432335532bdeb4ebcee0c72d9109e04b466f/n8n-workflows/12-todo-reminder.json — original creator credit. Request a take-down →

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