popiart-node-canvas/.planning/phases/03-generate-node-refactor/03-02-SUMMARY.md

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	issues-created	duration	completed
03-generate-node-refactor	2	api	[replicate fal-ai image-generation multi-provider]	{phase 03-01} {provides GenerateImageNode with provider/model selector, SelectedModel type}	[Replicate provider generate() implementation with polling fal.ai provider generate() implementation Multi-provider dispatch in /api/generate route]	[04-model-search-dialog 05-image-url-server]	[{added []} {patterns [Provider dispatch pattern in API route via provider-specific helpers Header-based API key passing (X-Replicate-API-Key, X-Fal-API-Key) Replicate prediction polling pattern]}]	[{created []} {modified [src/lib/providers/replicate.ts src/lib/providers/fal.ts src/app/api/generate/route.ts]}]	[Server-side provider execution (helpers in route.ts) rather than client-side Header-based API key passing to avoid localStorage on server fal.ai sync API (fal.run) instead of queue-based async]	[Provider-specific helper functions: generateWithGemini(), generateWithReplicate(), generateWithFal() Replicate polling with 1s interval until succeeded/failed Multi-format fal.ai response handling (images array, image object, output string)]	[]	5 min	2026-01-09

Phase 3 Plan 2: Provider-Specific Execution Summary

Multi-provider dispatch in /api/generate with Replicate prediction polling and fal.ai sync API

Performance

• Duration: 5 min
• Started: 2026-01-09T07:29:01Z
• Completed: 2026-01-09T07:34:10Z
• Tasks: 3
• Files modified: 3

Accomplishments

• Replicate generate() implementation with version fetching and prediction polling
• fal.ai generate() implementation with sync fal.run API and multi-format response handling
• Generate API route now dispatches to correct provider based on selectedModel.provider
• Gemini logic extracted into generateWithGemini() helper for clarity

Task Commits

Each task was committed atomically:

1. Task 1: Implement Replicate provider generate() - cbfdc9f (feat)
2. Task 2: Implement fal.ai provider generate() - d9c0ce7 (feat)
3. Task 3: Update generate API route for multi-provider dispatch - ac11c6e (feat)

Plan metadata: (this commit)

Files Created/Modified

• src/lib/providers/replicate.ts - Added ReplicatePrediction interface and generate() with API polling
• src/lib/providers/fal.ts - Added FalGenerationResponse interface and generate() with sync API
• src/app/api/generate/route.ts - Added multi-provider dispatch and provider-specific helper functions

Decisions Made

• Server-side provider execution in API route rather than client-side provider.generate() calls
• API keys passed via request headers (X-Replicate-API-Key, X-Fal-API-Key) to avoid localStorage access on server
• fal.ai uses sync fal.run API for simplicity (queue-based async not needed for image generation)

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None

Next Phase Readiness

• Provider generation working for Replicate and fal.ai
• Image inputs not yet passed to providers (requires Phase 5 URL server)
• Ready for 03-03-PLAN.md (backward compatibility for existing workflows)

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Phase: 03-generate-node-refactor Completed: 2026-01-09