Describe the problem/error/question
I created a ComfyUI workflow node to post a generated image to a local installation of n8n (docker)
The POSTed png file is received and can be viewed, but how to recognize it with the message route node
What is the error message (if any)?
Unclear what to set in the message route* node
Please share your workflow
{
“nodes”: [
{
“parameters”: {
“chatId”: “",
“text”: “={{ $json.body.text }}”,
“additionalFields”: {
“appendAttribution”: false
}
},
“type”: “n8n-nodes-base.telegram”,
“typeVersion”: 1.2,
“position”: [
-600,
-460
],
“id”: “e4ad3b27-83e4-4190-a0ab-cd965bb7390d”,
“name”: “Telegram”,
“webhookId”: “73aaaf2b-dcdb-45c0-bbab-1f9e98a9a110”,
“credentials”: {
“telegramApi”: {
“id”: “iutFkKAfs9lZJIZH”,
“name”: “Telegram account”
}
}
},
{
“parameters”: {
“httpMethod”: “POST”,
“path”: “583b3f83-d6f1-4aed-acf0-a3dfc123b400”,
“options”: {}
},
“type”: “n8n-nodes-base.webhook”,
“typeVersion”: 2,
“position”: [
-1040,
-280
],
“id”: “e5123203-b7fd-4e32-8213-c86c3495a57b”,
“name”: “Webhook”,
“webhookId”: “583b3f83-d6f1-4aed-acf0-a3dfc123b400”
},
{
“parameters”: {
“chatId”: "”,
“text”: “={{ $json.body.photo }}”,
“additionalFields”: {
“appendAttribution”: false
}
},
“id”: “ad2d6276-53c1-4605-b458-a3ad62173bf9”,
“name”: “Image Message”,
“type”: “n8n-nodes-base.telegram”,
“position”: [
120,
-280
],
“typeVersion”: 1.2,
“webhookId”: “92f1de0f-3b42-481d-9873-c5e877ac26f9”,
“credentials”: {
“telegramApi”: {
“id”: “iutFkKAfs9lZJIZH”,
“name”: “Telegram account”
}
}
},
{
“parameters”: {
“operation”: “toBinary”,
“sourceProperty”: “data”,
“options”: {
“fileName”: “={{ $json.result.file_path }}”
}
},
“id”: “a006c0ef-8918-4dfb-8391-a14c142ee645”,
“name”: “Convert to Image File”,
“type”: “n8n-nodes-base.convertToFile”,
“position”: [
-60,
-280
],
“typeVersion”: 1.1
},
{
“parameters”: {
“assignments”: {
“assignments”: [
{
“id”: “17989eb0-feca-4631-b5c8-34b1d4a6c72b”,
“name”: “image_file_id”,
“type”: “string”,
“value”: “={{ $json.body.file.last().file_id }}”
}
]
},
“options”: {}
},
“id”: “9fb2e87a-a811-4155-a648-3f83c2f738ff”,
“name”: “Image Schema”,
“type”: “n8n-nodes-base.set”,
“position”: [
-600,
-280
],
“typeVersion”: 3.4
},
{
“parameters”: {
“resource”: “file”,
“fileId”: “={{ $json.image_file_id }}”
},
“id”: “0edf37b0-4876-496d-af29-f66944d6b440”,
“name”: “Get Image”,
“type”: “n8n-nodes-base.telegram”,
“position”: [
-420,
-280
],
“typeVersion”: 1.2,
“webhookId”: “be5ab8b9-ca7e-4ae2-a23a-df7a60302986”,
“credentials”: {
“telegramApi”: {
“id”: “iutFkKAfs9lZJIZH”,
“name”: “Telegram account”
}
}
},
{
“parameters”: {
“operation”: “binaryToPropery”,
“options”: {}
},
“id”: “c509e5fd-319a-4ddc-b066-b5b64b2c50da”,
“name”: “Extract from File to Base”,
“type”: “n8n-nodes-base.extractFromFile”,
“position”: [
-260,
-280
],
“typeVersion”: 1
},
{
“parameters”: {
“rules”: {
“values”: [
{
“conditions”: {
“options”: {
“caseSensitive”: true,
“leftValue”: “”,
“typeValidation”: “loose”,
“version”: 2
},
“conditions”: [
{
“id”: “342f0883-d959-44a2-b80d-379e39c76218”,
“operator”: {
“type”: “string”,
“operation”: “exists”,
“singleValue”: true
},
“leftValue”: “={{ $json.body.text }}”,
“rightValue”: “”
}
],
“combinator”: “and”
}
},
{
“conditions”: {
“options”: {
“caseSensitive”: true,
“leftValue”: “”,
“typeValidation”: “loose”,
“version”: 2
},
“conditions”: [
{
“id”: “ded3a600-f861-413a-8892-3fc5ea935ecb”,
“operator”: {
“type”: “string”,
“operation”: “contains”
},
“leftValue”: “={{ $json.headers.content-type}}”,
“rightValue”: “multipart/form-data”
}
],
“combinator”: “and”
},
“renameOutput”: true,
“outputKey”: “image”
}
]
},
“looseTypeValidation”: true,
“options”: {
“fallbackOutput”: “extra”
}
},
“id”: “988cb400-6861-483c-af6f-dfc07bc46726”,
“name”: “Message Router”,
“type”: “n8n-nodes-base.switch”,
“position”: [
-860,
-280
],
“typeVersion”: 3.2
},
{
“parameters”: {
“chatId”: “************”,
“text”: “=Unable to process your message.”,
“additionalFields”: {
“appendAttribution”: false
}
},
“id”: “f1a14ff4-ad1e-4a13-b264-8da09df1d444”,
“name”: “Error message”,
“type”: “n8n-nodes-base.telegram”,
“position”: [
-600,
-100
],
“typeVersion”: 1.2,
“webhookId”: “17ec733a-a48d-4b98-8451-fd758de95901”,
“credentials”: {
“telegramApi”: {
“id”: “iutFkKAfs9lZJIZH”,
“name”: “Telegram account”
}
}
}
],
“connections”: {
“Telegram”: {
“main”: [
]
},
“Webhook”: {
“main”: [
[
{
“node”: “Message Router”,
“type”: “main”,
“index”: 0
}
]
]
},
“Convert to Image File”: {
“main”: [
[
{
“node”: “Image Message”,
“type”: “main”,
“index”: 0
}
]
]
},
“Image Schema”: {
“main”: [
[
{
“node”: “Get Image”,
“type”: “main”,
“index”: 0
}
]
]
},
“Get Image”: {
“main”: [
[
{
“node”: “Extract from File to Base”,
“type”: “main”,
“index”: 0
}
]
]
},
“Extract from File to Base”: {
“main”: [
[
{
“node”: “Convert to Image File”,
“type”: “main”,
“index”: 0
}
]
]
},
“Message Router”: {
“main”: [
[
{
“node”: “Telegram”,
“type”: “main”,
“index”: 0
}
],
[
{
“node”: “Image Schema”,
“type”: “main”,
“index”: 0
}
],
[
{
“node”: “Error message”,
“type”: “main”,
“index”: 0
}
]
]
}
},
“pinData”: {},
“meta”: {
“templateCredsSetupCompleted”: true,
“instanceId”: “657284b9098fdf118c349334a8ed9c27af13341655e19cb223fa011ef53c5085”
}
}
Share the output returned by the last node
It shows a table with binary information and I can view the image, not sure what to paste here.
Information on your n8n setup
- n8n version:
latest - Database (default: SQLite):
none - n8n EXECUTIONS_PROCESS setting (default: own, main):
default, local, installation - Running n8n via (Docker, npm, n8n cloud, desktop app):
Docker - Operating system:
OSx
