I am seeking assistance in converting a Python script, which retrieves YouTube transcripts without the need for authentication, into an n8n node. My initial efforts at configuring an HTTP Get node have been unsuccessful, particularly in the aspects of setting up the Google Cloud Console and configuring the node’s credentials. I’d like to understand the proper setup and configuration process for achieving the script’s functionality within the n8n platform. Below is the original Python script I wish to translate, followed by my current attempt at creating an HTTP node in n8n.
SCRIPT (Colab Syntax):
!pip install youtube_transcript_api
from youtube_transcript_api import YouTubeTranscriptApi
url = 'https://www.youtube.com/watch?v=2TL3DgIMY1g'
print(url)
video_id = url.replace('https://www.youtube.com/watch?v=', '')
print(video_id)
transcript = YouTubeTranscriptApi.get_transcript(video_id)
print(transcript)
output=''
for x in transcript:
sentence = x['text']
output += f' {sentence}\n'
print(output)
Hi, I am trying to do quite the same:
1- enter a list of youtube channels,
2- per channel, if new videos were posted on the last day, get the transcript,
3- compile all transcripts into a google doc.
Did you manage to setup your workflow?
1 and 2 seem easier with Google Sheet AppScript, but I’d like to succeed to do it in n8n.
Best
To help anyone who wants to do the same:
The youtube v3 captions api are able to retrieve only caption from video you own.
So don’t mess with http node oauth 2 etc.
Just go with the Python or Javascript code node, that library works.
Here is a sample of Javascript node (videoid passed from webhook):
const { YoutubeTranscript } = require('youtube-transcript');
const videoId = items[0].json.query.video;
// Crea una funzione asincrona che n8n eseguirà
async function getTranscript() {
try {
// Esegue la chiamata asincrona
const transcript = await YoutubeTranscript.fetchTranscript(videoId);
// Restituisce un array di oggetti, come richiesto da n8n
return [{json: {transcript: transcript}}];
} catch (error) {
// In caso di errore, restituisce un oggetto di errore
console.error(error);
return [{json: {error: error.message}}];
}
}
// Chiama la funzione e restituisce il suo valore
return getTranscript();
I had to dig a bit deeper as I kept getting an error when using the “sudo docker build…” command. It was so easy to miss but I needed to add a period at the end:
“sudo docker build -t n8n_yourimagename .”
I also used a docker-compose.yml file to apply all the env variables I needed, when creating the container from the image. I call it a major crash course in docker!
All good now and works like a charm. Thank you so much for your guidance!
Correct me if I’m wrong, but unfortunately, this solution isn’t effective for n8n cloud users. I would be happy to mark the solution as resolved, but it only addresses the problem for custom installations.
NodeOperationError: [YoutubeTranscript] 🚨 TypeError: Cannot read properties of undefined (reading 'transcriptBodyRenderer') at Object.execute (/home/node/.n8n/nodes/node_modules/n8n-nodes-youtube-transcript/nodes/YoutubeTranscriptNode/YoutubeTranscriptNode.node.ts:90:12) at processTicksAndRejections (node:internal/process/task_queues:95:5) at Workflow.runNode (/usr/local/lib/node_modules/n8n/node_modules/n8n-workflow/dist/Workflow.js:728:19) at /usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/WorkflowExecute.js:660:53 at /usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/WorkflowExecute.js:1062:20
