documenso-migration-deep-dive

# Documenso Migration Deep Dive ## Current State !`npm list 2>/dev/null | head -10` ## Overview Comprehensive guide for migrating to Documenso from other e-signature platforms (DocuSign, HelloSign, PandaDoc, Adobe Sign). Uses the Strangler Fig pattern for zero-downtime migration with feature flags and rollback support. ## Prerequisites - Current signing platform documented (APIs, templates, webhooks) - Documenso account configured (see `documenso-install-auth`) - Feature flag infrastructure (LaunchDarkly, environment variables, etc.) - Parallel run capability (both platforms active during migration) ## Migration Strategy: Strangler Fig Pattern ``` Phase 1: Parallel Systems (Week 1-2) ┌──────────┐ ┌─────────────┐ │ Your App │────▶│ Old Platform │ (100% traffic) │ │ └─────────────┘ │ │────▶│ Documenso │ (shadow: log only, don't send) └──────────┘ └─────────────┘ Phase 2: Gradual Cutover (Week 3-4) ┌──────────┐ ┌─────────────┐ │ Your App │────▶│ Old Platform │ (50% traffic via feature flag) │ │ └─────────────┘ │ │────▶│ Documenso │ (50% traffic) └──────────┘ └─────────────┘ Phase 3: Full Migration (Week 5+) ┌──────────┐ ┌─────────────┐ │ Your App │────▶│ Documenso │ (100% traffic) └──────────┘ └─────────────┘ Old platform decommissioned ``` ## Instructions ### Step 1: Pre-Migration Assessment ```typescript // scripts/assess-current-system.ts // Inventory your current si...