What are the key benefits of API Gateway Pattern?

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.

What if API gateway is down in microservices?

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 is slow, because of the other tenants, so are your responses. If the gateway goes down, so is your service.

Does API gateway do load balancing?

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.

How is microservices different from API?

The Difference Between APIs and Microservices An API is a contract that provides guidance for a consumer to use the underlying service. A microservice is an architectural design that separates portions of a (usually monolithic) application into small, self-containing services.

Which gateway tool is used in .NET Microservices?

Kong Gateway (OSS) is a popular, open-source, and advanced cloud-native API gateway built for universal deployment: it can run on any platform. It is written in Lua programming language and supports hybrid and multi-cloud infrastructure, and it is optimized for microservices and distributed architectures.

What is API gateway in simple terms?

An API gateway is an API management tool that sits between a client and a collection of backend services. An API gateway acts as a reverse proxy to accept all application programming interface (API) calls, aggregate the various services required to fulfill them, and return the appropriate result.

What is API gateway microservices?

An API Gateway is a server that is the single entry point into the system. All requests from clients first go through the API Gateway. It then routes requests to the appropriate microservice. The API Gateway will often handle a request by invoking multiple microservices and aggregating the results.

Can API gateway fail?

Client errors indicate that Amazon API Gateway found a problem with the client request, such as an authentication failure or missing required parameters. Server errors: Server errors are indicated by a 5xx HTTP response code, and need to be resolved by Amazon. You can resubmit/retry the request until it succeeds.