Develop Secure API Using AWS Lambda, Aurora Serverless MySql

- Amazon API gateway is a fully managed service for defining, deploying, and maintaing API's

- Provide RESTfull application programming interface (APIs)

- Runs APIs without servers.

- Integrate with AWS lambda

Let's start with and Overview of Amazon API gateway. As a developer you face many challanges when devloping API particularly when you build API based on Microservices.

With amazon API gateway you will have fully managed API PRODUCT that allow you to define, deploy and manage api's that scale without managing underline servers.

You can integrate LAMBDA function with API gatway

In the previous video

we have created the lambda function hello world in the previous videos. But that function don't have any endpoint

for instance

Let's say we want to trigger lambda function when someone hit the following endpoint

1. https://api.com/helloworld (API gateway)

then it will return you Hello, Wolrd in the response.

This is possible using API gatway where you can trigger your lambda function.

let's talk about the architecture behind the amazon API gateway.

First of all, on the left side of the picture you will see different type of applicaition clien such as mobile application, web application

and thrid party services that might need to talk to your API.

APi gateway has full support of HTTPS so you can do encryption and transist for all of the API call on your application. The way API gatway is designed

there is an amazon cloudfront distribution in front of your API to provide low letancy access to your application. You can also take advantage of API gateway cache for frequently access to content so the subsequent requests to your API can be pulled from the cache rather than invoking your backend. once the request hits to the API gateway you have a several option to integrate on the backend.For the serverless application you probabily have api gatway endpoint triggr AWS lambda function that run you backend business logic when request comes in to your API.Once the backend process the request the API call meterics are logged in amazon cloudwatch and the content is returnedto the client and you can moniter your API endpoint with the help of cloudwatch.

Download Source Code Sample Lambda Invocation