How to Build an Automated TikTok Pipeline from UGC Clips

TL;DR Built a 3-step pipeline for automated TikTok posting from UGC clips: scrape-hooks.js (collection) → trim-and-stitch.js (editing) → post-to-postiz.js (publishing). Achieved 100% success rate on day one with 4 daily runs (8AM/5PM, JP/EN). Clear separation of concerns enables easy debugging and component swapping. Source: daily.dev: How to write viral stories for developers Key quote: "Write from expertise. Developers hate clickbait." Prerequisites Node.js v18+ Postiz API account (TikTok integration enabled) UGC clip storage (workspace/hooks/ugc-clips/) ffmpeg (for video trimming) The Problem: Why Existing Solutions Failed Our existing posting skills had limitations: Approach Limitation Larry slideshow Static images only. Can't use video clips ReelClaw Posts single videos as-is. No multi-clip editing What we needed : Multiple UGC clips → auto-trim → stitch into one video → post to TikTok Step 1: Pipeline Design (3-Step Separation of Concerns) Source: Unix Philosophy Key quote: "Writ