Basic Information
| Field | Details |
|---|---|
| English name | Amazon API Gateway |
| Full name | Amazon API Gateway |
| Chinese description | API 网关 |
| Japanese description | Amazon API Gateway（API の作成・公開・管理サービス） |
| Exam frequency | ⭐⭐⭐⭐⭐ |
| Often confused with | ALB / Internet Gateway / NAT Gateway |
In one sentence
A managed front door for creating, publishing, securing, throttling, and monitoring APIs.
Key points
- It exposes HTTP, REST, or WebSocket APIs to clients and routes requests to backends.
- Backends commonly include Lambda, HTTP services, and private integrations through VPC Link.
- Authorization, throttling, validation, stages, caching, and monitoring are common concerns.
Exam takeaway
API Gateway is an application API entry point, not a VPC route gateway.