fix(filesystem): Migrate filesystem implementation to @push.rocks/smartfs and add Web Streams handling
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production-readiness.md
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production-readiness.md
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# Production-Readiness Plan for smarts3
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**Goal:** Make smarts3 production-ready as a MinIO alternative for use cases where:
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- Running MinIO is out of scope
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- You have a program written for S3 and want to use the local filesystem
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- You need a lightweight, zero-dependency S3-compatible server
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---
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## 🔍 Current State Analysis
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### ✅ What's Working
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- **Native S3 server** with zero framework dependencies
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- **Core S3 operations:** PUT, GET, HEAD, DELETE (objects & buckets)
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- **List buckets and objects** (V1 and V2 API)
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- **Object copy** with metadata handling
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- **Range requests** for partial downloads
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- **MD5 checksums** and ETag support
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- **Custom metadata** (x-amz-meta-*)
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- **Filesystem-backed storage** with Windows compatibility
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- **S3-compatible XML error responses**
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- **Middleware system** and routing
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- **AWS SDK v3 compatibility** (tested)
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### ❌ Production Gaps Identified
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---
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## 🎯 Critical Features (Required for Production)
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### 1. Multipart Upload Support 🚀 **HIGHEST PRIORITY**
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**Why:** Essential for uploading files >5MB efficiently. Without this, smarts3 can't handle real-world production workloads.
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**Implementation Required:**
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- `POST /:bucket/:key?uploads` - CreateMultipartUpload
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- `PUT /:bucket/:key?partNumber=X&uploadId=Y` - UploadPart
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- `POST /:bucket/:key?uploadId=X` - CompleteMultipartUpload
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- `DELETE /:bucket/:key?uploadId=X` - AbortMultipartUpload
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- `GET /:bucket/:key?uploadId=X` - ListParts
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- Multipart state management (temp storage for parts)
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- Part ETag tracking and validation
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- Automatic cleanup of abandoned uploads
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**Files to Create/Modify:**
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- `ts/controllers/multipart.controller.ts` (new)
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- `ts/classes/filesystem-store.ts` (add multipart methods)
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- `ts/classes/smarts3-server.ts` (add multipart routes)
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---
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### 2. Configurable Authentication 🔐
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**Why:** Currently hardcoded credentials ('S3RVER'/'S3RVER'). Production needs custom credentials.
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**Implementation Required:**
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- Support custom access keys and secrets via configuration
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- Implement AWS Signature V4 verification
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- Support multiple credential pairs (IAM-like users)
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- Optional: Disable authentication for local dev use
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**Configuration Example:**
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```typescript
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interface IAuthConfig {
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enabled: boolean;
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credentials: Array<{
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accessKeyId: string;
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secretAccessKey: string;
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}>;
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signatureVersion: 'v4' | 'none';
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}
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```
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**Files to Create/Modify:**
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- `ts/classes/auth-middleware.ts` (new)
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- `ts/classes/signature-validator.ts` (new)
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- `ts/classes/smarts3-server.ts` (integrate auth middleware)
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- `ts/index.ts` (add auth config options)
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---
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### 3. CORS Support 🌐
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**Why:** Required for browser-based uploads and modern web apps.
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**Implementation Required:**
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- Add CORS middleware
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- Support preflight OPTIONS requests
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- Configurable CORS origins, methods, headers
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- Per-bucket CORS configuration (optional)
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**Configuration Example:**
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```typescript
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interface ICorsConfig {
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enabled: boolean;
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allowedOrigins: string[]; // ['*'] or ['https://example.com']
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allowedMethods: string[]; // ['GET', 'POST', 'PUT', 'DELETE']
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allowedHeaders: string[]; // ['*'] or specific headers
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exposedHeaders: string[]; // ['ETag', 'x-amz-*']
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maxAge: number; // 3600 (seconds)
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allowCredentials: boolean;
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}
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```
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**Files to Create/Modify:**
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- `ts/classes/cors-middleware.ts` (new)
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- `ts/classes/smarts3-server.ts` (integrate CORS middleware)
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- `ts/index.ts` (add CORS config options)
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---
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### 4. SSL/TLS Support 🔒
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**Why:** Production systems require encrypted connections.
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**Implementation Required:**
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- HTTPS server option with cert/key configuration
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- Auto-redirect HTTP to HTTPS (optional)
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- Support for self-signed certs in dev mode
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**Configuration Example:**
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```typescript
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interface ISslConfig {
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enabled: boolean;
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cert: string; // Path to certificate file or cert content
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key: string; // Path to key file or key content
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ca?: string; // Optional CA cert
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redirectHttp?: boolean; // Redirect HTTP to HTTPS
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}
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```
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**Files to Create/Modify:**
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- `ts/classes/smarts3-server.ts` (add HTTPS server creation)
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- `ts/index.ts` (add SSL config options)
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---
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### 5. Production Configuration System ⚙️
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**Why:** Production needs flexible configuration, not just constructor options.
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**Implementation Required:**
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- Support configuration file (JSON/YAML)
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- Environment variable support
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- Configuration validation
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- Sensible production defaults
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- Example configurations for common use cases
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**Configuration File Example (`smarts3.config.json`):**
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```json
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{
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"server": {
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"port": 3000,
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"address": "0.0.0.0",
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"ssl": {
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"enabled": true,
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"cert": "./certs/server.crt",
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"key": "./certs/server.key"
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}
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},
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"storage": {
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"directory": "./s3-data",
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"cleanSlate": false
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},
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"auth": {
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"enabled": true,
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"credentials": [
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{
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"accessKeyId": "AKIAIOSFODNN7EXAMPLE",
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"secretAccessKey": "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY"
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}
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]
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},
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"cors": {
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"enabled": true,
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"allowedOrigins": ["*"],
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"allowedMethods": ["GET", "POST", "PUT", "DELETE", "HEAD"],
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"allowedHeaders": ["*"]
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},
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"limits": {
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"maxObjectSize": 5368709120,
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"maxMetadataSize": 2048,
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"requestTimeout": 300000
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},
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"logging": {
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"level": "info",
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"format": "json",
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"accessLog": {
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"enabled": true,
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"path": "./logs/access.log"
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},
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"errorLog": {
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"enabled": true,
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"path": "./logs/error.log"
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}
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}
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}
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```
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**Files to Create/Modify:**
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- `ts/classes/config-loader.ts` (new)
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- `ts/classes/config-validator.ts` (new)
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- `ts/index.ts` (use config loader)
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- Create example config files in root
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---
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### 6. Production Logging 📝
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**Why:** Console logs aren't suitable for production monitoring.
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**Implementation Required:**
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- Structured logging (JSON format option)
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- Log levels (ERROR, WARN, INFO, DEBUG)
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- File rotation support
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- Access logs (S3 standard format)
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- Integration with logging library
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**Files to Create/Modify:**
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- `ts/classes/logger.ts` (new - use @push.rocks/smartlog?)
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- `ts/classes/access-logger-middleware.ts` (new)
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- `ts/classes/smarts3-server.ts` (replace console.log with logger)
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- All controller files (use structured logging)
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---
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## 🔧 Important Features (Should Have)
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### 7. Health Check & Metrics 💊
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**Implementation Required:**
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- `GET /_health` endpoint (non-S3, for monitoring)
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- `GET /_metrics` endpoint (Prometheus format?)
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- Server stats (requests/sec, storage used, uptime)
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- Readiness/liveness probes for Kubernetes
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**Files to Create/Modify:**
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- `ts/controllers/health.controller.ts` (new)
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- `ts/classes/metrics-collector.ts` (new)
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- `ts/classes/smarts3-server.ts` (add health routes)
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---
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### 8. Batch Operations 📦
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**Implementation Required:**
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- `POST /:bucket?delete` - DeleteObjects (delete multiple objects in one request)
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- Essential for efficient cleanup operations
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**Files to Create/Modify:**
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- `ts/controllers/object.controller.ts` (add deleteObjects method)
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---
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### 9. Request Size Limits & Validation 🛡️
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**Implementation Required:**
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- Max object size configuration
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- Max metadata size limits
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- Request timeout configuration
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- Body size limits
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- Bucket name validation (S3 rules)
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- Key name validation
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**Files to Create/Modify:**
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- `ts/classes/validation-middleware.ts` (new)
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- `ts/utils/validators.ts` (new)
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- `ts/classes/smarts3-server.ts` (integrate validation middleware)
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---
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### 10. Conditional Requests 🔄
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**Implementation Required:**
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- If-Match / If-None-Match (ETag validation)
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- If-Modified-Since / If-Unmodified-Since
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- Required for caching and conflict prevention
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**Files to Create/Modify:**
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- `ts/controllers/object.controller.ts` (add conditional logic to GET/HEAD)
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---
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### 11. Graceful Shutdown 👋
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**Implementation Required:**
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- Drain existing connections
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- Reject new connections
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- Clean multipart cleanup on shutdown
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- SIGTERM/SIGINT handling
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**Files to Create/Modify:**
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- `ts/classes/smarts3-server.ts` (add graceful shutdown logic)
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- `ts/index.ts` (add signal handlers)
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---
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## 💡 Nice-to-Have Features
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### 12. Advanced Features
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- Bucket versioning support
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- Object tagging
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- Lifecycle policies (auto-delete old objects)
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- Storage class simulation (STANDARD, GLACIER, etc.)
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- Server-side encryption simulation
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- Presigned URL support (for time-limited access)
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### 13. Performance Optimizations
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- Stream optimization for large files
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- Optional in-memory caching for small objects
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- Parallel upload/download support
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- Compression support (gzip)
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### 14. Developer Experience
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- Docker image for easy deployment
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- Docker Compose examples
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- Kubernetes manifests
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- CLI for server management
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- Admin API for bucket management
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---
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## 📐 Implementation Phases
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### Phase 1: Critical Production Features (Priority 1)
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**Estimated Effort:** 2-3 weeks
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1. ✅ Multipart uploads (biggest technical lift)
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2. ✅ Configurable authentication
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3. ✅ CORS middleware
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4. ✅ Production configuration system
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5. ✅ Production logging
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**Outcome:** smarts3 can handle real production workloads
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---
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### Phase 2: Reliability & Operations (Priority 2)
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**Estimated Effort:** 1-2 weeks
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6. ✅ SSL/TLS support
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7. ✅ Health checks & metrics
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8. ✅ Request validation & limits
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9. ✅ Graceful shutdown
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10. ✅ Batch operations
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**Outcome:** smarts3 is operationally mature
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---
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### Phase 3: S3 Compatibility (Priority 3)
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**Estimated Effort:** 1-2 weeks
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11. ✅ Conditional requests
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12. ✅ Additional S3 features as needed
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13. ✅ Comprehensive test suite
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14. ✅ Documentation updates
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**Outcome:** smarts3 has broad S3 API compatibility
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---
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### Phase 4: Polish (Priority 4)
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**Estimated Effort:** As needed
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15. ✅ Docker packaging
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16. ✅ Performance optimization
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17. ✅ Advanced features based on user feedback
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**Outcome:** smarts3 is a complete MinIO alternative
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---
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## 🤔 Open Questions
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1. **Authentication:** Do you want full AWS Signature V4 validation, or simpler static credential checking?
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2. **Configuration:** Prefer JSON, YAML, or .env file format?
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3. **Logging:** Do you have a preferred logging library, or shall I use @push.rocks/smartlog?
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4. **Scope:** Should we tackle all of Phase 1, or start with a subset (e.g., just multipart + auth)?
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5. **Testing:** Should we add comprehensive tests as we go, or batch them at the end?
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6. **Breaking changes:** Can I modify the constructor options interface, or must it remain backward compatible?
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---
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## 🎯 Target Use Cases
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**With this plan implemented, smarts3 will be a solid MinIO alternative for:**
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✅ **Local S3 development** - Fast, simple, no Docker required
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✅ **Testing S3 integrations** - Reliable, repeatable tests
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✅ **Microservices using S3 API** with filesystem backend
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✅ **CI/CD pipelines** - Lightweight S3 for testing
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✅ **Small-to-medium production deployments** where MinIO is overkill
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✅ **Edge computing** - S3 API for local file storage
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✅ **Embedded systems** - Minimal dependencies, small footprint
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---
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## 📊 Current vs. Production Comparison
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| Feature | Current | After Phase 1 | After Phase 2 | Production Ready |
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|---------|---------|---------------|---------------|------------------|
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| Basic S3 ops | ✅ | ✅ | ✅ | ✅ |
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| Multipart upload | ❌ | ✅ | ✅ | ✅ |
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| Authentication | ⚠️ (hardcoded) | ✅ | ✅ | ✅ |
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| CORS | ❌ | ✅ | ✅ | ✅ |
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| SSL/TLS | ❌ | ❌ | ✅ | ✅ |
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| Config files | ❌ | ✅ | ✅ | ✅ |
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| Production logging | ⚠️ (console) | ✅ | ✅ | ✅ |
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| Health checks | ❌ | ❌ | ✅ | ✅ |
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| Request limits | ❌ | ❌ | ✅ | ✅ |
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| Graceful shutdown | ❌ | ❌ | ✅ | ✅ |
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| Conditional requests | ❌ | ❌ | ❌ | ✅ |
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| Batch operations | ❌ | ❌ | ✅ | ✅ |
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---
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## 📝 Notes
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- All features should maintain backward compatibility where possible
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- Each feature should include comprehensive tests
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- Documentation (readme.md) should be updated as features are added
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- Consider adding a migration guide for users upgrading from testing to production use
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- Performance benchmarks should be established and maintained
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---
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**Last Updated:** 2025-11-23
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**Status:** Planning Phase
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**Next Step:** Get approval and prioritize implementation order
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Block a user