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Design an API Gateway

Design an API Gateway

MediumSystem Design0% accepted

Paytm API Gateway is the single entry point for all client requests. Design a gateway supporting authentication, rate limiting, request routing, load balancing, and observability.

Approach

Design API gateway with auth, rate limiting, routing, and observability.

Input

Unauthenticated request to /api/payments

Output

401 Unauthorized at auth middleware; request blocked before reaching payment service

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