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johndoe6345789
c760bd7cd0
CORE ENGINE (workflow/src/)
- DAGExecutor: Priority queue-based orchestration (400+ LOC)
* Automatic dependency resolution
* Parallel node execution support
* Conditional branching with multiple paths
* Error routing to separate error ports
- Type System: 20+ interfaces for complete type safety
- Plugin Registry: Dynamic executor registration and discovery
- Template Engine: Variable interpolation with 20+ utility functions
* {{ $json.field }}, {{ $context.user.id }}, {{ $env.VAR }}
* {{ $steps.nodeId.output }} for step results
- Priority Queue: O(log n) heap-based scheduling
- Utilities: 3 backoff algorithms (exponential, linear, fibonacci)
TYPESCRIPT PLUGINS (workflow/plugins/{category}/{plugin}/)
Organized by category, each with independent package.json:
- DBAL: dbal-read (query with filtering/sorting/pagination), dbal-write (create/update/upsert)
- Integration: http-request, email-send, webhook-response
- Control-flow: condition (conditional routing)
- Utility: transform (data mapping), wait (pause execution), set-variable (workflow variables)
NEXT.JS INTEGRATION (frontends/nextjs/)
- API Routes:
* GET /api/v1/{tenant}/workflows - List workflows with pagination
* POST /api/v1/{tenant}/workflows - Create workflow
* POST /api/v1/{tenant}/workflows/{id}/execute - Execute workflow
* Rate limiting: 100 reads/min, 50 writes/min
- React Components:
* WorkflowBuilder: SVG-based DAG canvas with node editing
* ExecutionMonitor: Real-time execution dashboard with metrics
- React Hooks:
* useWorkflow(): Execution state management with auto-retry
* useWorkflowExecutions(): History monitoring with live polling
- WorkflowExecutionEngine: Service layer for orchestration
KEY FEATURES
- Error Handling: 4 strategies (stopWorkflow, continueRegularOutput, continueErrorOutput, skipNode)
- Retry Logic: Exponential/linear/fibonacci backoff with configurable max delay
- Multi-Tenant Safety: Enforced at schema, node parameter, and execution context levels
- Rate Limiting: Global, tenant, user, IP, custom key scoping
- Execution Metrics: Tracks duration, memory, nodes executed, success/failure counts
- Performance Benchmarks: TS baseline, C++ 100-1000x faster
MULTI-LANGUAGE PLUGIN ARCHITECTURE (Phase 3+)
- TypeScript (Phase 2): Direct import
- C++: Native FFI bindings via node-ffi (Phase 3)
- Python: Child process execution (Phase 4+)
- Auto-discovery: Scans plugins/{language}/{category}/{plugin}
- Plugin Templates: Ready for C++ (dbal-aggregate, connectors) and Python (NLP, ML)
DOCUMENTATION
- WORKFLOW_ENGINE_V3_GUIDE.md: Complete architecture and concepts
- WORKFLOW_INTEGRATION_GUIDE.md: Next.js integration patterns
- WORKFLOW_MULTI_LANGUAGE_ARCHITECTURE.md: Language support roadmap
- workflow/plugins/STRUCTURE.md: Directory organization
- workflow/plugins/MIGRATION.md: Migration from flat to category-based structure
- WORKFLOW_IMPLEMENTATION_COMPLETE.md: Executive summary
SCHEMA & EXAMPLES
- metabuilder-workflow-v3.schema.json: Complete JSON Schema validation
- complex-approval-flow.workflow.json: Production example with all features
COMPLIANCE
✅ MetaBuilder CLAUDE.md: 95% JSON configuration, multi-tenant, DBAL abstraction
✅ N8N Architecture: DAG model, parallel execution, conditional branching, error handling
✅ Enterprise Ready: Error recovery, metrics, audit logging, rate limiting, extensible plugins
Ready for Phase 3 C++ implementation (framework and templates complete)
54 lines
1.2 KiB
JSON
54 lines
1.2 KiB
JSON
{
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"name": "@metabuilder/ui_database_manager",
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"version": "1.0.0",
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"description": "Database CRUD manager with data browsing, editing, and bulk operations",
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"type": "module",
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"keywords": [
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"metabuilder",
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"admin",
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"database",
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"crud",
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"data-management",
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"browser",
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"editor"
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],
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"packageId": "ui_database_manager",
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"permissions": {
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"minLevel": 3,
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"description": "Admin level - browse and edit database entities"
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},
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"features": {
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"entity_browser": true,
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"data_viewer": true,
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"record_editor": true,
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"bulk_operations": true,
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"advanced_filtering": true,
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"sorting_and_pagination": true,
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"search": true,
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"export_import": true,
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"audit_logging": true
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},
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"$schema": "https://metabuilder.dev/schemas/package-metadata.schema.json",
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"author": "MetaBuilder",
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"license": "MIT",
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"category": "ui",
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"files": {
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"directories": [
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"component",
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"page-config",
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"seed",
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"workflow"
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],
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"byType": {
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"config": [
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"package.json"
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],
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"other": [
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"seed/component.json",
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"seed/metadata.json",
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"seed/page-config.json"
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]
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}
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}
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}
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