About this recipe
A recipe for Telegram Ai Bot With Langchain Nodes
Recipe Template
{
"id": "ax8PJlp1UDb6EGFt",
"meta": {
"instanceId": "fb924c73af8f703905bc09c9ee8076f48c17b596ed05b18c0ff86915ef8a7c4a"
},
"name": "Telegram AI Langchain bot",
"tags": [],
"nodes": [
{
"id": "e275f31f-6a5f-4444-8bf7-6c003a8e53df",
"name": "OpenAI Chat Model",
"type": "@n8n\/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1100,
600
],
"parameters": {
"model": "gpt-4-1106-preview",
"options": {
"temperature": 0.7,
"frequencyPenalty": 0.2
}
},
"credentials": {
"openAiApi": {
"id": "63",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "f25a6666-ff23-4372-afd0-4920a99aab6a",
"name": "Window Buffer Memory",
"type": "@n8n\/n8n-nodes-langchain.memoryBufferWindow",
"position": [
1220,
600
],
"parameters": {
"sessionKey": "=chat_with_{{ $('Listen for incoming events').first().json.message.chat.id }}",
"contextWindowLength": 10
},
"typeVersion": 1
},
{
"id": "96faef5d-0349-47fe-a7cf-150953490e90",
"name": "Telegram",
"type": "n8n-nodes-base.telegram",
"onError": "continueErrorOutput",
"position": [
1500,
380
],
"parameters": {
"text": "={{ $json.output }}",
"chatId": "={{ $('Listen for incoming events').first().json.message.from.id }}",
"additionalFields": {
"parse_mode": "HTML",
"appendAttribution": false
}
},
"credentials": {
"telegramApi": {
"id": "70",
"name": "Telegram sdfsdfsdfsdfsfd_bot"
}
},
"typeVersion": 1.1
},
{
"id": "5ad43039-aaa6-43cd-9b0f-1d02f4d9c4ff",
"name": "Correct errors",
"type": "n8n-nodes-base.telegram",
"position": [
1700,
380
],
"parameters": {
"text": "={{ $('AI Agent').item.json.output.replace(\/&\/g, \"&\").replace(\/>\/g, \">\").replace(\/<\/g, \"<\").replace(\/\"\/g, \""\") }}",
"chatId": "={{ $('Listen for incoming events').first().json.message.from.id }}",
"additionalFields": {
"parse_mode": "HTML",
"appendAttribution": false
}
},
"credentials": {
"telegramApi": {
"id": "70",
"name": "Telegram sdfsdfsdfsdfsfd_bot"
}
},
"typeVersion": 1.1
},
{
"id": "0349a250-966a-4064-970a-8bcfba1647ad",
"name": "Execute Workflow Trigger",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
940,
900
],
"parameters": [],
"typeVersion": 1
},
{
"id": "69a45c1f-838f-49ce-9b89-75db6a8b876f",
"name": "Listen for incoming events",
"type": "n8n-nodes-base.telegramTrigger",
"position": [
940,
380
],
"webhookId": "322dce18-f93e-4f86-b9b1-3305519b7834",
"parameters": {
"updates": [
"message"
],
"additionalFields": []
},
"credentials": {
"telegramApi": {
"id": "70",
"name": "Telegram sdfsdfsdfsdfsfd_bot"
}
},
"typeVersion": 1
},
{
"id": "2f5d5f25-9870-40d6-ad42-52750e62de63",
"name": "Send back an image",
"type": "n8n-nodes-base.telegram",
"position": [
1300,
900
],
"parameters": {
"file": "={{ $json.data[0].url }}",
"chatId": "={{ $('Execute Workflow Trigger').first().json.chat_id }}",
"operation": "sendPhoto",
"additionalFields": {
"parse_mode": "HTML"
}
},
"credentials": {
"telegramApi": {
"id": "70",
"name": "Telegram sdfsdfsdfsdfsfd_bot"
}
},
"typeVersion": 1.1
},
{
"id": "50b43dbf-39e3-4d00-8e47-01e8c193cd1a",
"name": "add response field",
"type": "n8n-nodes-base.set",
"position": [
1480,
900
],
"parameters": {
"fields": {
"values": [
{
"name": "response",
"stringValue": "Success"
}
]
},
"options": []
},
"typeVersion": 3.2
},
{
"id": "171bee83-c8e1-4af3-9d1c-12cb6ede4943",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
900,
840
],
"parameters": {
"width": 752.0361990950231,
"height": 247.42081447963798,
"content": "## Generate an image with Dall-E 3 and send it via Telegram"
},
"typeVersion": 1
},
{
"id": "4d81d201-70bf-4c80-9689-4b65851ad770",
"name": "Dall-E 3 Tool",
"type": "@n8n\/n8n-nodes-langchain.toolWorkflow",
"position": [
1360,
600
],
"parameters": {
"name": "Draw_Dalle_image",
"fields": {
"values": [
{
"name": "chat_id",
"stringValue": "={{ $('Listen for incoming events').first().json.message.chat.id }}"
}
]
},
"workflowId": "={{ $workflow.id }}",
"description": "Call this tool to request a Dall-E 3 model, when the user asks to draw something. Please send the user request for an image as an inline query string."
},
"typeVersion": 1
},
{
"id": "39d532d3-8c96-4722-9cb0-cad92ff39e94",
"name": "Generate image in Dall-E 3",
"type": "n8n-nodes-base.httpRequest",
"position": [
1120,
900
],
"parameters": {
"url": "https:\/\/api.openai.com\/v1\/images\/generations",
"method": "POST",
"options": [],
"sendBody": true,
"authentication": "predefinedCredentialType",
"bodyParameters": {
"parameters": [
{
"name": "model",
"value": "dall-e-3"
},
{
"name": "prompt",
"value": "={{ $json.query }}"
},
{
"name": "n",
"value": 1
},
{
"name": "size",
"value": "1024x1024"
}
]
},
"nodeCredentialType": "openAiApi"
},
"credentials": {
"openAiApi": {
"id": "63",
"name": "OpenAi account"
}
},
"typeVersion": 4.1
},
{
"id": "e5aa496d-55d3-456b-82bb-fe10a06c7338",
"name": "AI Agent",
"type": "@n8n\/n8n-nodes-langchain.agent",
"position": [
1140,
380
],
"parameters": {
"text": "={{ $json.message.text }}",
"options": {
"humanMessage": "TOOLS\n------\nAssistant can ask the user to use tools to look up information that may be helpful in answering the users original question. The tools the human can use are:\n\n{tools}\n\n{format_instructions}\n\nUSER'S INPUT\n--------------------\nHere is the user's input (remember to respond with a markdown code snippet of a json blob with a single action, and NOTHING else):\n\n{{input}}",
"systemMessage": "=You are a helpful AI assistant. You are chatting with the user named `{{ $json.message.from.first_name }}`. Today is {{ DateTime.fromISO($now).toLocaleString(DateTime.DATETIME_FULL) }}\n\nFrom time to time call a user by name (if the user name is provided). In your reply, always send a message in Telegram-supported HTML format. Here are the formatting instructions:\n1. The following tags are currently supported:\n<b>bold<\/b>, <strong>bold<\/strong>\n<i>italic<\/i>, <em>italic<\/em>\n<u>underline<\/u>, <ins>underline<\/ins>\n<s>strikethrough<\/s>, <strike>strikethrough<\/strike>, <del>strikethrough<\/del>\n<span class=\"tg-spoiler\">spoiler<\/span>, <tg-spoiler>spoiler<\/tg-spoiler>\n<b>bold <i>italic bold <s>italic bold strikethrough <span class=\"tg-spoiler\">italic bold strikethrough spoiler<\/span><\/s> <u>underline italic bold<\/u><\/i> bold<\/b>\n<a href=\"http:\/\/www.example.com\/\">inline URL<\/a>\n<code>inline fixed-width code<\/code>\n<pre>pre-formatted fixed-width code block<\/pre>\n2. Any code that you send should be wrapped in these tags: <pre><code class=\"language-python\">pre-formatted fixed-width code block written in the Python programming language<\/code><\/pre>\nOther programming languages are supported as well.\n3. All <, > and & symbols that are not a part of a tag or an HTML entity must be replaced with the corresponding HTML entities (< with <, > with > and & with &)\n4. If the user sends you a message starting with \/ sign, it means this is a Telegram bot command. For example, all users send \/start command as their first message. Try to figure out what these commands mean and reply accodringly\n"
}
},
"typeVersion": 1.1
}
],
"active": true,
"pinData": [],
"settings": {
"callerPolicy": "workflowsFromSameOwner",
"executionOrder": "v1",
"saveManualExecutions": true,
"saveDataSuccessExecution": "all"
},
"versionId": "3e9c27eb-1d2f-40bf-b284-4f6a1bece30c",
"connections": {
"AI Agent": {
"main": [
[
{
"node": "Telegram",
"type": "main",
"index": 0
}
]
]
},
"Telegram": {
"main": [
[],
[
{
"node": "Correct errors",
"type": "main",
"index": 0
}
]
]
},
"Dall-E 3 Tool": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Send back an image": {
"main": [
[
{
"node": "add response field",
"type": "main",
"index": 0
}
]
]
},
"Window Buffer Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Execute Workflow Trigger": {
"main": [
[
{
"node": "Generate image in Dall-E 3",
"type": "main",
"index": 0
}
]
]
},
"Generate image in Dall-E 3": {
"main": [
[
{
"node": "Send back an image",
"type": "main",
"index": 0
}
]
]
},
"Listen for incoming events": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
}
}
}How to Use an n8n Template
1
Create a New Workflow
Click "New Workflow" in your n8n dashboard to get started.
2
Copy & Paste Template
First, copy this template:
Click here to copy the JSON
.
Then, in n8n, click the three dots (···) → "Import from file" and paste the JSON code.
3
Customize the Nodes
Go through each node in the workflow to update inputs like spreadsheet IDs, email addresses, or message content. Adjust field mappings to match your data.
4
Grant Access
For nodes that connect to external apps (like Google Sheets or Slack), you'll need to grant access. Connect your accounts using OAuth or an API key and save the credentials in the node.
5
Test It
Run the workflow by clicking "Execute Node" for each step or "Run Once" for the whole thing. Check the right sidebar to inspect data and debug any errors (they'll show up in red).
6
Activate Workflow
Once everything works as expected, click the "Activate" toggle to turn your workflow on. You're all set!