Implementing a Serverless GraphQL Backend with AWS AppSync

Serverless architecture and GraphQL to build fast, efficient, and scalable backends

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GraphQL has gained significant popularity among developers due to its flexibility and efficiency compared to traditional REST APIs. It allows clients to define precisely what data they need, reducing over-fetching or under-fetching of information. Combining GraphQL with a serverless architecture can lead to even greater benefits, such as reduced operational overhead and automatic scaling.

In this guide, we’ll walk through implementing a serverless GraphQL backend using Amazon Web Services (AWS) AppSync. We will create an API, set up data sources, configure resolvers, and test our setup. By the end, you’ll have hands-on experience building your own serverless GraphQL backend on AWS AppSync.

Prerequisites

To follow along, ensure you have the following prerequisites:

1. An active AWS account. If you don’t already have one, sign up for a free tier at https://aws.amazon.com/.
2. The AWS CLI installed and configured with appropriate credentials. For installation instructions, visit https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2.html.