July 2020
Intermediate to advanced
181 pages
3h 53m
English
Content preview from Full Stack Serverless
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Chapter 2. Getting Started with AWS Amplify
At the core of most applications is the data/API layer. This layer could look like many things. In the serverless world, this usually will be composed of a combination of API endpoints and serverless functions. These serverless functions could be doing some logic and returning data, interacting with a database of some kind, or even interacting with another API endpoint.
There are two main ways of creating APIs with Amplify:
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A combination of Amazon API Gateway and a Lambda function
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A GraphQL API connected to some type of data source (database, Lambda function, or HTTP endpoint)
API Gateway is an AWS service that allows you to create API endpoints and route them to different services, often via a Lambda function. When you make an API call, it will route the request through API Gateway, invoke the function, and return the response. Using the Amplify CLI, you can create both the API Gateway endpoint as well as the Lambda function; the CLI will automatically configure the API to be able to invoke the Lambda function via an HTTP request.
Once your API is created, you then need a way to interact with it. Using the Amplify client you will be able to send requests to the endpoint using the Amplify API class. The API class allows you to interact with both GraphQL APIs as well as API Gateway endpoints, as shown in Figure 2-1.
In this chapter, you’ll create your first full stack serverless app that will interact with a serverless function ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.