N8N Long Form Video Generator

User fills a form to generate a long form video based on topic and tags (single word descriptions), optionally including Intro video and background music.
You can check it out by importing Viral_Video_Generator.json into n8n.

Input

Output

It has successfully generated a video based on the form details and sent it to my Telegram through a Telegram Bot.

Nodes

Trigger
- Webhook
LLM chain, AI agent
Http Request
- Create video
- Check video status
- Download video
Telegram
- Send video
Wait, Switch, Set nodes

Steps

To create an intro video and background music.
- Get your free api key from json2video and create a new video template and click on edit. Add a video in your template and select the video to add source from pexels or local.
- Use chatgpt to generate a prompt for Suno AI to generate music based on the video niche. Download the music and upload it to json2video template as an audio element's source.
- Select the video and it's source to copy the video url. Do the same for the audio, and use the links in the form below.
Open index.html in a browser and fill the form. You will use the webhook url from the next step.
Setup a webhook to receive form details from the form created in the previous step. Copy the webhook url to the form.
Attach an LLM chain node to create caption and video ideas. It should output idea, caption, character_style_prompt, channel_style_prompt.
Attach another LLM chain or AI Agent to create the script in small bits each about a sentence long. It should output an array of objects each containing voiceText and image_prompt.
Check the documentation of json2video to understand the json syntax and what to expect by visiting both the archived documentation and json syntax section.
Add a Set node to format the subtitle setting object if any is requested by the user.
Add another Set node to format the body for the post request.
Attach an Http Request node to send the post request to json2video. Add Authentication with Header Auth and use your json2video api key in x-api-key header.
Attach another Http Request node to check the status of the video.
Attach a Switch node to switch between Wait and Check Video Status nodes.
Attach a Wait node to wait for 20 seconds.
Attach an Http Request node to download the video when it is done.
And finally send the video on Telegram using Send video operation. Don't forget to create a bot and get your chat id using @get_id_bot in the bot chat.