.env.grpc.example

# gRPC/JSON-RPC Bridge Configuration Example
# Copy this file to .env and modify as needed

# Server Configuration
BIND_ADDRESS=0.0.0.0:8080                    # HTTP API Gateway (existing)
GRPC_BIND_ADDRESS=0.0.0.0:50051              # gRPC Server
GATEWAY_BIND_ADDRESS=0.0.0.0:8081            # HTTP Gateway for gRPC services

# Database Configuration
DATABASE_URL=postgresql://user:pass@localhost:5432/axionvera
DB_POOL_SIZE=10

# Stellar / Soroban Configuration
SOROBAN_NETWORK=testnet
SOROBAN_RPC_URL=https://soroban-testnet.stellar.org

# gRPC Configuration
GRPC_MAX_MESSAGE_SIZE=4194304                # 4MB max message size
GRPC_MAX_CONNECTIONS=1000                    # Max concurrent connections
GRPC_CONNECTION_TIMEOUT=30                    # Connection timeout (seconds)
GRPC_KEEPALIVE_TIME=60                       # Keepalive interval (seconds)
GRPC_KEEPALIVE_TIMEOUT=5                     # Keepalive timeout (seconds)

# TLS Configuration (Optional)
# TLS_CERT_PATH=/path/to/server.crt
# TLS_KEY_PATH=/path/to/server.key
# TLS_CA_CERT_PATH=/path/to/ca.crt

# Feature Flags
ENABLE_GATEWAY=true                           # Enable HTTP gateway
ENABLE_REFLECTION=true                        # Enable gRPC reflection (dev only)
ENABLE_COMPRESSION=true                       # Enable gzip compression
ENABLE_METRICS=true                           # Enable Prometheus metrics
ENABLE_TRACING=true                           # Enable distributed tracing

# Logging Configuration
LOG_LEVEL=info
LOG_FORMAT=json                              # json or text
GRPC_LOG_LEVEL=info                          # gRPC specific logging

# Performance Configuration
SHUTDOWN_GRACE_PERIOD=10                      # Graceful shutdown period (seconds)
MAX_CONCURRENT_REQUESTS=1000                  # Max concurrent requests
REQUEST_TIMEOUT=30                            # Request timeout (seconds)

# Security Configuration
RATE_LIMIT_REQUESTS_PER_SECOND=100            # Rate limit per client
RATE_LIMIT_BURST=200                         # Rate limit burst size
ENABLE_SIGNATURE_VALIDATION=true              # Enable signature validation
NONCE_VALIDATION_WINDOW=300                   # Nonce validation window (seconds)

# P2P Network Configuration
MAX_PEERS=50                                 # Maximum peer connections
PEER_DISCOVERY_INTERVAL=30                   # Peer discovery interval (seconds)
PEER_TIMEOUT=300                             # Peer connection timeout (seconds)

# Monitoring and Observability
METRICS_PORT=9090                            # Prometheus metrics port
HEALTH_CHECK_INTERVAL=10                      # Health check interval (seconds)
JAEGER_ENDPOINT=http://localhost:14268/api/traces  # Jaeger tracing endpoint

# Development Configuration
DEV_MODE=true                                 # Enable development features
MOCK_CONTRACT_CALLS=true                     # Mock contract calls (dev only)
ENABLE_CORS=true                             # Enable CORS for HTTP gateway
CORS_ORIGINS=http://localhost:3000,http://localhost:8080

# Production Configuration (uncomment for production)
# DEV_MODE=false
# ENABLE_REFLECTION=false
# LOG_LEVEL=warn
# GRPC_LOG_LEVEL=error
# ENABLE_SIGNATURE_VALIDATION=true
# TLS_CERT_PATH=/etc/ssl/certs/axionvera.crt
# TLS_KEY_PATH=/etc/ssl/private/axionvera.key