Quick Answer: How Does Amazon API Gateway Work?

What is API Gateway example?

A great example of an API Gateway is the Netflix API Gateway.

The Netflix streaming service is available on hundreds of different kinds of devices including televisions, set‑top boxes, smartphones, gaming systems, tablets, etc.

Initially, Netflix attempted to provide a one‑size‑fits‑all API for their streaming service..

When Should API gateway be used?

Using an API gateway has the following benefits:Insulates the clients from how the application is partitioned into microservices.Insulates the clients from the problem of determining the locations of service instances.Provides the optimal API for each client.Reduces the number of requests/roundtrips.More items…

Which API Gateway is best?

Top 10 API gateways for API management to try in 2020#3: Axway. … #4: Kong Inc. … #5: Young App. … #6: SnapLogic. … #7: Akana API Platform. … #8: Oracle API Platform. … #9: TIBCO Cloud-Mashery. TIBCO Cloud Mashery is one of the best API management tools used for converting to SOAP and RESTful protocols. … #10: 3scale. 3scale makes it easy to manage internal and external users of your API.More items…•

How much does an API cost?

How Much Does an API Cost to Build? On average, it costs $20,000 to build a relatively simple API. This figure assumes that you’re building a secure, documented, fully-featured API with the services of an experienced API developer based in the United States.

How do I use Amazon API gateway?

From the Amazon API Gateway console, choose Actions, Deploy API….Deploy Your APIIn the Actions drop-down list select Deploy API.Select [New Stage] in the Deployment stage drop-down list.Enter prod for the Stage Name.Choose Deploy.Note the Invoke URL. You will use it in the next section.

What is the function of Amazon API gateway?

Amazon API Gateway is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale. APIs act as the “front door” for applications to access data, business logic, or functionality from your backend services.

What is AWS REST API?

A REST API in API Gateway is a collection of resources and methods that are integrated with backend HTTP endpoints, Lambda functions, or other AWS services. … API Gateway REST APIs use a request/response model where a client sends a request to a service and the service responds back synchronously.

What if API gateway is down?

Performance and Availability both. In an enterprise microservice setting, each service has their own SLAs. But, with API Gateway in between, your SLA is now multiplied with that of the API Gateway. … If the gateway goes down, so is your service.

Is API gateway expensive?

API Gateway, for example, is charged at $3.50 per million API calls received, plus data transfer charges. In practice, API Gateway often costs more than AWS Lambda, sometimes several times more. In fact, at scale, API Gateway can be so expensive that you might wish to rewrite your API to run on containers or VMs.

Is Amazon API gateway free?

With Amazon API Gateway, you only pay when your APIs are in use. There are no minimum fees or upfront commitments. … The API Gateway free tier includes one million HTTP API calls, one million REST API calls, one million messages, and 750,000 connection minutes per month for up to 12 months.

Is AWS API gateway highly available?

Amazon API Gateway provides a highly scalable solution to create and publish RESTful and WebSocket APIs.

Do we need API gateway?

Why do we need an API Gateway? Authentication & Security — API Gateway enforces to have standard authentication & security across all services. … Rate Limiting — API Gateways are able to handle requests that go over the limit. This prevents our service API from being overwhelmed by too many requests.

What is the difference between API and API gateway?

While API Gateways and API management can be used interchangeably, strictly speaking, an API gateway refers to the individual proxy server, while API management refers to the overall solution of managing APIs in production which includes a set of API gateways acting in a cluster, an administrative UI, and may even …

How do I secure API gateway?

Use a random HTTP header value in CloudFront origin configuration and use an API Gateway request model validation to verify it instead of API keys alone. Combine Lambda@Edge and an API Gateway custom authorizer to sign and verify incoming requests using a shared secret known only to the two.

How do I monitor API gateway?

AWS provides several tools for monitoring your API Gateway resources and responding to potential incidents: Amazon CloudWatch Logs. To help debug issues related to request execution or client access to your API, you can enable CloudWatch Logs to log API calls.

Why do we need AWS API gateway?

API Gateway provides WebSocket API management functionality such as the following: Monitoring and throttling of connections and messages. Using AWS X-Ray to trace messages as they travel through the APIs to backend services. Easy integration with HTTP/HTTPS endpoints.

How does API gateway work?

An API gateway is a way to decouple the client interface from your backend implementation. When a client makes a request, the API gateway breaks it into multiple requests, routes them to the right places, produces a response, and keeps track of everything.

Should I use API gateway?

An API gateway can provide an external, unified REST-based API across these various protocols, allowing teams to choose what best fits the internal architecture. Decreased microservice complexity. … Each of these concerns can add more time to the development of microservices by requiring that each service implement them.

Does API gateway do load balancing?

Load Balancing: The API Gateway can work as a load balancer to handle requests in the most efficient manner. It can keep a track of the request load it has sent to different nodes of a particular service. … An API Gateway can record the basic response time from each node of a service instance.

Does API gateway support HTTP?

Amazon API Gateway does not support unencrypted (HTTP) endpoints. By default, Amazon API Gateway assigns an internal domain to the API that automatically uses the Amazon API Gateway certificate. When configuring your APIs to run under a custom domain name, you can provide your own certificate for the domain.

What is the difference between REST API and HTTP API?

A RESTful API adheres ALL the REST constraints set out in its “format” documentation (in the dissertation of Roy Fielding). A HTTP API is ANY API that makes use of HTTP as their transfer protocol. … Most HTTP APIs can be very close to becoming a truly RESTful API.