Web3-Student-Lab/.env.example at main · StellarDevHub/Web3-Student-Lab · GitHub

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# Environment Configuration Template for Redis Caching Layer
# Copy this to .env and adjust values for your environment

# ============================================
# Database Configuration
# ============================================
DATABASE_URL=postgresql://postgres:postgres@localhost:5432/web3-student-lab?schema=public

# ============================================
# Redis Configuration - Choose one mode
# ============================================

# Redis Mode: standalone, sentinel, or cluster
REDIS_MODE=standalone

# ============================================
# STANDALONE MODE (Development)
# ============================================
REDIS_HOST=localhost
REDIS_PORT=6379
REDIS_PASSWORD=

# ============================================
# SENTINEL MODE (High Availability)
# ============================================
# Uncomment these and set REDIS_MODE=sentinel to use Sentinel
# REDIS_SENTINELS=localhost:26379,localhost:26380,localhost:26381
# REDIS_SENTINEL_NAME=mymaster
# REDIS_SENTINEL_PASSWORD=

# ============================================
# CLUSTER MODE (Distributed)
# ============================================
# Uncomment these and set REDIS_MODE=cluster to use Cluster
# REDIS_CLUSTER_NODES=localhost:6381,localhost:6382,localhost:6383
# REDIS_CLUSTER_PASSWORD=

# ============================================
# Cache Warming Configuration
# ============================================

# Interval (in milliseconds) for periodic cache warming
CACHE_WARMING_INTERVAL=300000  # 5 minutes

# Interval (in milliseconds) for polling new blocks
BLOCK_POLL_INTERVAL=10000  # 10 seconds

# ============================================
# Instance Configuration
# ============================================

# Unique identifier for this backend instance (used in clustering)
INSTANCE_ID=backend-1

# Node environment
NODE_ENV=development

# ============================================
# JWT Configuration
# ============================================
JWT_SECRET=your-secret-key-change-in-production

# ============================================
# Application Configuration
# ============================================

# Stellar Network: testnet, mainnet, or local
STELLAR_NETWORK=testnet

# Soroban RPC URL
SOROBAN_RPC_URL=https://soroban-testnet.stellar.org

# Horizon API URL
HORIZON_URL=https://horizon-testnet.stellar.org

# Certificate Contract ID
CERTIFICATE_CONTRACT_ID=

# API Base URL
API_BASE_URL=http://localhost:8080

# Certificate Metadata Base URL
CERT_METADATA_BASE_URL=http://localhost:8080

# Certificate Image Base Path
CERT_IMAGE_BASE_PATH=

# Verification URL
VERIFICATION_URL=http://localhost:8080/api/v1/certificates/verify

# Issuer DID
ISSUER_DID=did:stellar:GBRPYHIL2CI3FYQMWVUGE62KMGOBQKLCYJ3HLKBUBIW5VZH4S4MNOWT

# Issuer Name
ISSUER_NAME=Web3 Student Lab

# ============================================
# Logging Configuration
# ============================================

# Log level: debug, info, warn, error
LOG_LEVEL=info

# ============================================
# Cache Configuration (Advanced)
# ============================================

# Maximum memory for Redis (used in docker-compose)
# Examples: 256mb, 512mb, 1gb
REDIS_MAX_MEMORY=256mb

# Memory eviction policy
# Options: noeviction, allkeys-lru, allkeys-lfu, volatile-lru, volatile-lfu, volatile-ttl, volatile-random, allkeys-random
REDIS_MAX_MEMORY_POLICY=allkeys-lru

# Enable Redis persistence
REDIS_APPEND_ONLY=yes

# ============================================
# Performance Tuning
# ============================================

# Database connection pool size
DB_POOL_MIN=5
DB_POOL_MAX=20

# Request timeout (milliseconds)
REQUEST_TIMEOUT=30000

# RPC call timeout (milliseconds)
RPC_TIMEOUT=10000

# ============================================
# Development/Debugging
# ============================================

# Enable debug logging for cache operations
DEBUG_CACHE=false

# Enable debug logging for RPC calls
DEBUG_RPC=false

# Enable CORS for development
CORS_ENABLED=true
CORS_ORIGIN=http://localhost:3000