api-gateway-configuration

# API Gateway Configuration Design and configure API gateways for microservice architectures. ## Gateway Responsibilities - Request routing and load balancing - Authentication and authorization - Rate limiting and throttling - Request/response transformation - Logging and monitoring - SSL termination ## Kong Configuration (YAML) ```yaml _format_version: "3.0" services: - name: user-service url: http://user-service:3000 routes: - name: user-routes paths: ["/api/users"] plugins: - name: rate-limiting config: minute: 100 policy: local - name: jwt - name: order-service url: http://order-service:3000 routes: - name: order-routes paths: ["/api/orders"] ``` ## Nginx Configuration ```nginx upstream backend { server backend1:3000 weight=5; server backend2:3000 weight=5; keepalive 32; } server { listen 443 ssl; location /api/ { proxy_pass http://backend; proxy_http_version 1.1; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_cache_valid 200 1m; } location /health { return 200 'OK'; } } ``` ## AWS API Gateway (SAM) ```yaml Resources: ApiGateway: Type: AWS::Serverless::Api Properties: StageName: prod Auth: DefaultAuthorizer: JWTAuthorizer Authorizers: JWTAuthorizer: JwtConfiguration: issuer: !Sub "https:/...