# Phase 01 Plan 01: LinkedIn Video Upload Client Summary

**Added `linkedinRestRequest`, `uploadVideo`, and `createVideoPost` to `src/clients/linkedin.ts`.**

## Accomplishments
- `linkedinRestRequest` helper: mirrors `linkedinRequest` but targets `https://api.linkedin.com/rest` with `LinkedIn-Version: 202501` header
- `uploadVideo(videoUrl, ownerUrn, accessToken)`: 5-step flow — download (ArrayBuffer, 120s timeout), initialize upload, chunk PUT at 4MB each with ETag collection, finalize, poll every 3s up to 90s until `AVAILABLE`
- `createVideoPost(args, customer)`: resolves token + profile, calls `uploadVideo`, posts via `POST /rest/posts` (not `/v2/ugcPosts`), reads post ID from `x-restli-id` header, wraps in audit log

## Files Created/Modified
- `src/clients/linkedin.ts` — added ~120 lines after existing `createPost`

## Decisions Made
- Used inline `fetch` for `POST /rest/posts` to read `x-restli-id` header before body is consumed
- `void CHUNK_SIZE` line keeps the constant referenced to avoid unused-var lint; actual slice ranges come from `uploadInstructions[].firstByte/lastByte`
- ETags stripped of surrounding quotes before passing to `finalizeUpload`

## Issues Encountered
- `redis` and `mysql2` packages were not installed (`node_modules` was missing). Ran `npm install` — build became clean

## Next Step
Ready for 01-02-PLAN.md
