Aws docs what is api gateway

1. What is AWS API gateway?
2. What is API Gateway example?
3. What is the difference between API and Gateway?
4. What is the difference between API gateway and load balancer?
5. Why do we need a API gateway?
6. Is AWS API gateway a Load Balancer?
7. Is API gateway a Web server?
8. When Should API gateway be used?
9. Is API gateway same as service discovery?
10. How many types of API gateways are there?
11. Is AWS API gateway serverless?
12. What is difference between proxy and gateway?
13. Is API gateway a reverse proxy?
14. What is difference between ALB and NLB?
15. Is load balancer before or after API gateway?

What is AWS API gateway?

Amazon API Gateway is an AWS service for creating, publishing, maintaining, monitoring, and securing REST, HTTP, and WebSocket APIs at any scale. API developers can create APIs that access AWS or other web services, as well as data stored in the AWS Cloud .

What is API Gateway example?

The popular example of API Gateway is Netflix API Gateway. The Netflix streaming services are available on hundreds of different kinds of devices such as televisions, set-top boxes, smartphones, tablets, etc. It attempts to provide a one-size-fits-all API for its streaming service.

What is the difference between API and Gateway?

API is an acronym for Application Programming Interface. It is a set of definitions and protocols that allow technology products and services to communicate with each other via the internet. An API Gateway is used as the entry point for client requests to an API.

What is the difference between API gateway and load balancer?

API gateways also handle all of the interpretations and protocols that occur between various pieces of software. An API gateway, for example, connects micro-services, whereas load balancers redirect multiple instances of the same micro-service element as it scales out.

Why do we need a API gateway?

API gateways help to prevent malicious attacks by providing an additional layer of protection from attack vectors such as SQL Injection, XML Parser exploits, and denial-of-service (DoS) attacks. Enables support for mixing communication protocols.

Is AWS API gateway a Load Balancer?

API Gateway can manage and balance out network traffic just as a Load Balancer, just in a different way. Instead of distributing requests evenly to a set of backend resources (e.g. a cluster of servers), an API Gateway can be configured to direct requests to specific resources based on the endpoints being requested.

Is API gateway a Web server?

The API Gateway. An API Gateway is the element that coordinates and orchestrates how all the requests are processed in a Microservices architecture, and this also includes to the Serverless model. An API Gateway includes an HTTP server where routes are associated with a Microservice or with a FaaS function.

When Should API gateway be used?

You need an API gateway because it provides a unified entry point across internal APIs. It allows you to control user access. And it enables security measures, like rate limiting, and applies security policies, like OAuth or JWT. An API gateway is especially important for securing microservices.

Is API gateway same as service discovery?

The API gateway asks the service-discovery software (e.g ZooKeeper, HashiCorp Consul, Eureka, SkyDNS) where it can locate different backend services according to API requests (by sending the name). Once the service-discovery software provides the necessary information, the gateway forwards the request to that address.

How many types of API gateways are there?

14 Open Source and Managed API Gateway for Modern Applications.

Is AWS API gateway serverless?

API Gateway supports containerized and serverless workloads, as well as web applications.

What is difference between proxy and gateway?

A gateway is a network point that acts as an entrance to another network. A reverse proxy is where a proxy server retrieves information being sent from one or more servers. The proxy server is essentially asking the gateway for permission for information to enter the network.

Is API gateway a reverse proxy?

An API gateway sits between clients and services. It acts as a reverse proxy, routing requests from clients to services. It may also perform various cross-cutting tasks such as authentication, SSL termination, and rate limiting.

What is difference between ALB and NLB?

NLB natively preserves the source IP address in TCP/UDP packets; in contrast, ALB and ELB can be configured to add additional HTTP headers with forwarding information, and those have to be parsed properly by your application.

Is load balancer before or after API gateway?

Don't you think we should place Load Balancer after the API gateway? as the request first has to be intercepted before deciding what and where it needs to be redirected. It can be done both before and after depending on the traffic you might have.