Product Requirements Document (PRD)
1. Overview
1.1 Vision
Build a robust, scalable public registry of compute that allows developers to publish, share, and consume functions and tools with versioning and flexible execution options. This registry is intended to replace legacy systems (such as ValTown) with a modern platform that supports multi-provider execution (e.g., Cloudflare Workers, Vercel Functions) and leverages a reliable backend (e.g., PostgreSQL) for code storage and metadata management.
1.2 Objectives
Public Registry: Provide a marketplace where users can search, discover, and import compute functions/tools.
Versioning & Dependency Management: Offer version control for published functions similar to npm.
Multi-Provider Execution: Allow functions to be executed via configurable providers.
User Authentication & Authorization: Ensure that only authenticated and authorized users can publish, update, or delete content.
Extensibility: Support multiple compute providers and future protocols without extensive rework.
2. Background and Context
2.1 Problem Statement
Current solutions for function execution registries are limited in flexibility, provider support, and developer workflow. Users need a system that not only stores and versions their compute functions but also integrates seamlessly with various serverless execution platforms. Moreover, robust authentication and fine-grained permissions are required to secure the ecosystem.
2.2 Market Comparison
npm: Provides package management and versioning for code libraries, but not dedicated compute functions.
Serverless Platforms: Often tie compute functions to a specific provider.
Existing Registries (e.g., ValTown): Limited by legacy design, lack of versioning, and less flexible execution options.
3. Product Description
3.1 Key Features
Registry Catalog & Discovery:
A searchable catalog of published functions/tools.
Advanced filtering by tags, version, provider, and ratings.
Detailed function metadata including descriptions, version history, dependencies, and execution parameters.
Publishing & Versioning:
CLI and web-based publishing interfaces.
Version control support (e.g., semantic versioning).
Support for rollbacks and deprecating old versions.
A manifest file (e.g., registry.json) to describe tool metadata, similar to package.json in npm.
Authentication & Authorization:
User registration and OAuth integration (e.g., GitHub, Google).
Role-based access control (RBAC) for publishing, editing, and administration.
API keys or token-based authentication for automated publishing and CI/CD pipelines.
Multi-Provider Function Execution:
Configurable execution providers (e.g., Cloudflare Workers, Vercel Functions).
Provider selection flag (e.g., --provider) in the CLI for custom execution.
Fallback mechanisms when a provider is not available.
Logging and monitoring for each execution provider.
Storage & Database:
A PostgreSQL database for storing function code, metadata, version history, user data, and analytics.
Schema design to handle relationships between functions, users, and execution providers.
Scalable data architecture to support large volumes of functions and user interactions.
CLI & SDK Integration:
A comprehensive CLI tool (e.g., extending @blahai/cli) for managing functions.
SDKs in popular languages for easier integration.
Commands for publishing, updating, versioning, and executing functions.
Simulation and testing tools to verify function behavior locally before publishing.
User Interface (UI):
A web dashboard for browsing, managing, and deploying functions.
Detailed function pages with documentation, ratings, and usage examples.
Admin interface for moderating content and managing user roles.
Security & Compliance:
Secure API endpoints with HTTPS.
Code scanning and vulnerability checks on published functions.
Audit logs for all publishing and execution events.
Compliance with data protection regulations (e.g., GDPR).
4. User Roles & Workflows
4.1 User Roles
Developer/Contributor:
Publishes new functions or updates existing ones.
Views version history, manages dependencies, and monitors execution logs.
Consumer:
Discovers and imports functions/tools into their projects.
Provides ratings and feedback.
Administrator:
Manages user roles, reviews flagged content, and oversees system health.
Automated Systems/CI Pipelines:
Publishes and updates functions via API using secured tokens.
4.2 Key User Workflows
4.2.1 Publishing a Function
Developer logs in via CLI or web UI.
The developer initializes a new function project using a template (e.g., registry.json).
After coding and local testing, the developer runs publish command.
The function is versioned, metadata is stored in PostgreSQL, and the code is deployed (e.g., to Cloudflare Workers).
A confirmation is sent via email/notification.
4.2.2 Discovering and Importing a Function
A consumer visits the registry web UI.
The consumer searches for functions by name, tag, or provider.
The function’s detail page shows documentation, version history, and usage instructions.
The consumer copies the import command (CLI or SDK) to integrate the function into their project.
The system validates dependencies and compatibility.
4.2.3 Execution & Monitoring
A consumer or automated system triggers a function via CLI or API.
The registry routes the request to the selected execution provider.
Execution logs, performance metrics, and error handling are captured and stored.
Feedback is provided through the UI and via webhook notifications.
5. Technical Architecture
5.1 Frontend
Web Dashboard:
Built with modern frameworks (e.g., React or Vue).
Responsive design for desktop and mobile use.
Integration with the backend API for data retrieval and publishing.
5.2 Backend Services
API Server:
RESTful endpoints for user management, function publishing, discovery, and execution.
Real-time notifications via websockets or SSE.
Database Layer:
PostgreSQL for relational data.
Caching layer (e.g., Redis) for high-frequency queries.
Function Execution Layer:
Abstraction over multiple providers.
Provider-specific modules to handle deployment, invocation, and logging.
CLI & SDK:
Node.js-based CLI tool integrated with the backend.
SDK packages available via package managers.
5.3 Security & Monitoring
Authentication & Authorization:
JWT tokens for API security.
OAuth integrations for third-party authentication.
Logging & Analytics:
Centralized logging (e.g., ELK Stack or similar).
Monitoring dashboards for function performance and system health.
Scalability:
Horizontal scaling for API servers.
Load balancers and auto-scaling for execution environments.
Backup & Recovery:
Regular database backups and failover mechanisms.
6. Feature Specifications & Requirements
6.1 Functional Requirements
ID Feature Description Priority
FR-1 User Registration & Login Allow users to sign up, log in, and manage sessions using email/password and OAuth. High
FR-2 Function Publishing Enable authenticated users to publish new functions with metadata, code, and versioning information. High
FR-3 Function Discovery & Search Provide a searchable catalog with filters for tags, providers, versions, and ratings. High
FR-4 Version Management Support semantic versioning, rollback, and deprecation of functions. High
FR-5 Multi-Provider Configuration Allow users to specify their preferred provider (e.g., Cloudflare, Vercel) during publishing and execution. High
FR-6 CLI Integration Offer a command-line interface for publishing, updating, executing, and testing functions. Medium
FR-7 API Rate Limiting & Security Implement rate limiting, API key management, and JWT authentication for API endpoints. High
FR-8 Logging & Monitoring Capture detailed execution logs and system metrics. Provide dashboards for monitoring performance and health. High
FR-9 Code & Dependency Validation Scan published functions for vulnerabilities and enforce dependency checks before allowing publication. Medium
FR-10 User Feedback & Rating System Allow users to rate and review functions, helping others to evaluate the quality and reliability of published tools. Medium
6.2 Non-Functional Requirements
Performance:
API response times under 200ms for most endpoints.
High availability and 99.9% uptime for registry services.
Scalability:
Support thousands of simultaneous users and millions of function invocations.
Security:
End-to-end encryption for data in transit.
Regular security audits and vulnerability assessments.
Usability:
Intuitive UI and CLI interfaces.
Comprehensive documentation and user guides.
Maintainability:
Modular codebase with clear separation of concerns.
Extensive unit, integration, and end-to-end tests.
7. Milestones & Roadmap
7.1 Phase 1: Core Registry & Publishing
Develop user authentication and registration.
Build backend API for function publishing and versioning.
Create a basic web dashboard and CLI for publishing functions.
Integrate PostgreSQL database for storing metadata.
7.2 Phase 2: Provider Integration & Execution
Implement multi-provider support (Cloudflare Workers, Vercel Functions).
Develop provider abstraction modules.
Enable real-time logging and monitoring.
Enhance CLI with provider configuration options.
7.3 Phase 3: Advanced Features & Scaling
Build advanced search, filtering, and rating system.
Implement automated code scanning and dependency validation.
Expand scalability (caching, load balancing, auto-scaling).
Launch beta testing and gather user feedback for improvements.
7.4 Phase 4: Public Launch & Continuous Improvement
Finalize documentation, tutorials, and support channels.
Roll out marketing initiatives.
Continuously iterate on features based on user feedback.
Monitor system performance and implement further optimizations.
8. Risks & Mitigations
Adoption Risk:
Mitigation: Engage with developer communities early, offer incentives for early adopters, and provide comprehensive documentation.
Security Vulnerabilities:
Mitigation: Implement robust security measures, regular audits, and automated code scanning.
Scalability Challenges:
Mitigation: Use scalable cloud architectures, auto-scaling, and performance monitoring tools.
Provider Dependency:
Mitigation: Abstract provider integrations to enable rapid switching or addition of new providers as needed.
9. Success Metrics
User Adoption: Number of registered developers and published functions.
Engagement: Frequency of function downloads, imports, and executions.
Performance: API response times, uptime statistics, and execution latency.
Security: Number of security incidents, successful audits, and vulnerability scan results.
Feedback: User ratings and qualitative feedback from community surveys.
10. Appendices
10.1 Glossary
Compute Function: A self-contained piece of code intended to execute a specific task.
Provider: A cloud or serverless platform where functions can be executed.
Registry: A catalog or database of available compute functions.
Manifest: A JSON file that describes a function’s metadata, version, dependencies, and execution parameters.
10.2 References
Inspiration drawn from npm, modern serverless platforms, and existing registry systems.
Industry best practices for versioning, security, and API design.
This PRD provides a detailed framework for building a modern, extensible, and secure public registry for compute functions, aimed at replacing legacy systems with a flexible, multi-provider ecosystem. It is designed to be both developer-friendly and robust enough to handle a large-scale deployment while ensuring quality and security at every step.
Feel free to iterate on this document based on further stakeholder feedback and technical feasibility studies.