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Gateway Service Configuration

Environment Variables​

Server Configuration​

HOST=0.0.0.0
PORT=8000

Authentication​

AUTHENTICATION_SERVICE_URL=http://authentication:8001
JWT_SECRET=your-jwt-secret-key
JWT_ALGORITHM=HS256

Redis​

REDIS_URL=redis://localhost:6379

Database (Optional)​

DATABASE_URL=postgresql://user:password@localhost:5432/wanga_gateway

Rate Limiting​

RATE_LIMIT_ENABLED=true
RATE_LIMIT_PREMIUM=1000  # requests per minute
RATE_LIMIT_STANDARD=100
RATE_LIMIT_FREE=10

Circuit Breaker​

CIRCUIT_BREAKER_FAILURE_THRESHOLD=5
CIRCUIT_BREAKER_TIMEOUT=60  # seconds
CIRCUIT_BREAKER_HALF_OPEN_MAX_CALLS=3

Logging​

RUST_LOG=info,gateway=debug

OpenTelemetry​

OTLP_ENDPOINT=http://otel-collector:4317
OTLP_SERVICE_NAME=gateway

Configuration Files​

Cargo.toml​

Rust project dependencies and metadata.

config/config.toml​

Service-specific configuration (if using config crate).

Service Routes​

Configure backend service routes:

[services]
payment = "http://payment:8001"
authentication = "http://authentication:8001"
federation = "http://federation:8020"

Rate Limiting Configuration​

Rate limits can be configured per user tier or API key in Redis or database.