n8n LinkedIn Tech Post Automation: NewsData + Gemini + Slack

Automatically turn daily tech news into a LinkedIn post—approved in Slack, published to LinkedIn

This n8n workflow fetches daily tech news, uses Google Gemini to write a viral-style LinkedIn post (and create an image prompt), sends everything to Slack for your approval, and then automatically publishes to your LinkedIn profile once approved.

What this workflow does

• Runs daily and assigns a unique tech topic (e.g., SEO, Shopify, WordPress) based on the day of the week.
• Fetches the latest matching tech news using the NewsData.io API.
• Uses Google Gemini to curate the results, selecting the single most engaging article for your audience.
• Scrapes the full content of the selected article via Jina AI (to produce accurate context for the post).
• Generates a compelling LinkedIn post and an optimized AI image prompt using Gemini.
• Pauses execution and sends the draft (text + image prompt) to your Slack channel for human-in-the-loop review.
• After you approve in Slack, the workflow attaches the generated image and publishes automatically to LinkedIn.

Use cases

• SaaS operators who want consistent LinkedIn engagement without manually researching and writing every day.
• Automation engineers building an n8n content pipeline with review gates and reliable API-driven sourcing.
• Teams maintaining a professional LinkedIn presence across topics like SEO, WordPress, and Shopify.

Technical details

• NewsData.io: configured via an API key in the first HTTP Request node to fetch daily tech news.
• Google Gemini (PaLM): Gemini credentials power news curation, post writing, and image prompt generation.
• Jina AI: Jina API key is used in the Authorization header to scrape full article content.
• Slack: sends approval requests to a selected user/channel; posting resumes only after approval.
• LinkedIn OAuth2: handles final publishing to your LinkedIn profile.
• n8n workflow logic uses nodes such as if, set, code, no op, wait, and slack.

Setup note: Human approval in Slack is required before the workflow publishes to LinkedIn.