To verify that HTTP APIs do reduce latency compared to REST APIs, I set up the following test infrastructure. Therefore, when you have to transfer more than 1536 KB per request and response, an HTTP API will be more expensive than a REST API. In general, it is correct that HTTP APIs are cheaper than REST APIs.Ī cost reduction by 70% is an essential argument for HTTP APIs.īut there’s a catch to it: HTTP APIs meters a request in 512 KB increments. Next, we look at whether AWS can deliver on the promise of lower cost and lower latency than a REST API. Stages to deploy different versions of a REST API in parallel (e.g., a test environment).Authentication based on JWT tokens (OpenID Connect or OAuth 2.0).On top of that, HTTP APIs come with the following features: After defining resources and methods, you are ready to deploy your HTTP API, which will result in a publicly available HTTPS endpoint.Īn HTTP API forwards incoming requests to the following back-end endpoints: For example, by specifying your REST API in the OpenAPI 3.0 specification. Application Load Balancer ( ALB) is a layer-7 load balancer with similarities with an API gateway.ĭo you prefer listening to a podcast episode over reading a blog post? Here you go! How It WorksĪn HTTP API allows you to specify a REST API.API Gateway WebSocket APIs was announced in 2018 and allows you to build a real-time API using WebSockets.API Gateway HTTP APIs is the fast and straightforward alternative to build REST APIs announced in 2019.API Gateway REST APIs is the full-feature flagship service to build REST APIs announced in 2015.We will look at hard technical facts instead of flowery marketing promises.Ī summary of Amazon’s API gateways to avoid confusion: The cloud provider promises that HTTP APIs are faster and cheaper than it’s predecessor. This review takes a closer look at the new service API Gateway HTTP APIs announced in December 2019 and generally since available in March 2020. Typically, an API gateway offers the following features:ĪWS offers different types of API gateways as a managed service. An API gateway acts as an API front-end that receives API requests from clients and forwards them to back-end services.
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