Social Media Publishing with Blotato API: Instagram, LinkedIn, Twitter, and Facebook

This workflow automates cross-platform social media publishing, replacing manual logins and scheduling that consume 3-5 hours weekly for content teams juggling multiple accounts. The Social Publisher Webhook and Scheduled Publisher Cron trigger content from Google Sheets queues, the Authentication Check If node secures access, the Content Queue Manager Google Sheets node fetches ready posts, the Content Processor Set node validates, the Content Validation If node ensures completeness, the Media Processor Set node handles uploads via Blotato, the Media Upload Router If node routes media/text, the Platform Splitter ItemLists node parallelizes, routers (Instagram/LinkedIn/Twitter/Facebook If nodes) optimize per platform, publishers (HTTP Request nodes) post via Blotato API, the Results Aggregator Merge node compiles, the Final Report Generator Set node summarizes metrics, the Status Updater Google Sheets node logs, the Analytics Tracker HTTP Request node reports, the Publication Notification EmailSend node alerts, and Success Response Respond to Webhook confirms. It helps social media managers in small agencies (10-30 staff) scheduling 50+ posts weekly across Instagram/LinkedIn/Twitter/Facebook, enabling consistent branding without tools like Buffer, reducing errors and boosting engagement through timed, optimized content.\n\nThis workflow saves 8-12 hours weekly on 50 posts, increasing reach by 60%. Use cases include campaign scheduling for e-commerce, thought leadership for B2B in startups. Suitable for small-mid teams. Requires Blotato API ($29/month starter), Google Sheets OAuth (free); n8n (free self-hosted or $20/month cloud). Scalable to 200 posts/week with Pro tiers.\n\nInstall n8n via n8n.ioor cloud.n8n.io. Get Blotato key at blotato.com (create app). Enable Google Sheets API at console.cloud.google.com (OAuth). Create queue sheet at docs.google.com with columns (Title, Caption, Platforms, Scheduled Time, etc.); get ID. Set env vars: DEVHUB_BLOTATO_API_KEY, DEVHUB_CONTENT_SPREADSHEET_ID. Import JSON; webhook POST '/social-publisher' with x-api-key auth. Configure Scheduled Publisher for 15-min intervals.\n\nTest with webhook: {title: 'Test Post', caption: 'Hello world', platforms: 'instagram,linkedin'}. Verify posts, report. Errors: Invalid key (401—regenerate), empty caption (400). Activate webhook/Schedule. Monitor dashboard weekly. Optimize hashtags; refresh tokens quarterly.", "businessValue": "Saves 8-12 hours/week publishing 50 social posts", "setupTime": "30-45 minutes", "difficulty": "Intermediate", "requirements": ["Blotato API ($29/month starter)", "Google Sheets OAuth (free)", "n8n instance"], "useCase": "Automated multi-platform content scheduling"