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What are the various kinds of AWS API Gateway Protocols?

Amazon API Gateway helps numerous protocols for exposing APIs, together with:

1. RESTful API

That is the commonest and broadly used protocol for net APIs. Amazon API Gateway lets you create and handle RESTful APIs, the place you outline API sources, strategies (akin to GET, POST, PUT, DELETE, and many others.), and HTTP request and response mappings utilizing API Gateway’s REST API mannequin.

Main use-cases embody

  • Constructing conventional net APIs with commonplace HTTP strategies (GET, POST, PUT, DELETE, and many others.) and resource-based URLs.
  • Exposing APIs for legacy techniques or third-party integrations that observe RESTful rules.
  • Constructing APIs which are consumed by a variety of shoppers, akin to net browsers, cell apps, and IoT gadgets.

2. WebSocket API

WebSocket is a protocol that permits bidirectional communication between net shoppers and servers over a single, long-lived connection. With Amazon API Gateway’s WebSocket API, you possibly can create real-time, interactive APIs that help two-way communication between shoppers and servers, making it appropriate to be used circumstances like chat purposes, gaming, and notifications.

Main use-cases embody

  • Constructing real-time purposes that require bidirectional communication between shoppers and servers, akin to chat purposes, gaming, and collaborative enhancing instruments.
  • Enabling real-time notifications, alerts, or event-driven communication in your purposes.
  • Constructing interactive purposes that require prompt updates and push notifications.


It is a extra streamlined and simplified protocol for constructing APIs with Amazon API Gateway. HTTP APIs are designed for serverless architectures and supply options like automated CORS dealing with, simplified authorization, and a extra environment friendly payload format in comparison with RESTful APIs. HTTP APIs are typically advisable for constructing APIs for serverless purposes, single-page purposes (SPAs), and cell purposes.

Main use-cases embody

  • Constructing serverless purposes that use AWS Lambda because the backend, the place APIs act as triggers for Lambda capabilities.
  • Constructing APIs for single-page purposes (SPAs) or cell purposes that require simplified authorization and CORS dealing with.
  • Constructing APIs that have to deal with a lot of requests with low latency, as HTTP APIs are designed to be extremely performant and cost-effective for high-scale workloads.


It’s value noting that every of those protocols has its personal use circumstances, options, and trade-offs, so it’s essential to fastidiously take into account your particular necessities and use case when selecting the suitable protocol to your API in AWS API Gateway.

It’s essential to notice that these are just a few widespread use circumstances, and the suitable protocol to your API in Amazon API Gateway relies on your particular necessities and use case. It’s advisable to completely perceive the options, capabilities, and trade-offs of every protocol earlier than selecting the suitable one to your API implementation.



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