RESTful in Peace and Graph Up your API (Golang Edition)

In this presentation I will demonstrate how you could create a simple scalable GraphQL API using AWS Lambda and GraphQL library with Neptune Graph database. I will also take you through deployment process using AWS CDK to deploy our lambda function. In order to trigger the lambda we will also need to create an AWS API Gateway to trigger the deployed lambda.

Architecture

AWS Lambda & API Gateway

When client sends an HTTP(s) request to public endpoint of AWS API Gateway; it will trigger an AWS State Machine which has a definition of Lambda execution. We could have Authorizer Lambda to be triggered when initial lambda in triggered. Please look at Architecture Diagram for Step Functions Workflow.

AWS CDK

Please follow steps below to deploy this project on AWS. Two main prerequisites to deploy this application are:

• to have an AWS account with Administrator Privileges
• to have a Docker Desktop installed and running on your machine

Step I - Build Args (Docker Image Pipeline to Deploy with CDK)

Please ensure you have the following environment variables set before running a command described in Step II.

• AWS_KEY Your AWS Public Key, could be obtained from Security Credentials page
• AWS_SECRET This will be your AWS Secret key, could be obtained from Security Credentials page
• CDK_DEFAULT_ACCOUNT Your AWS Account Number
• CDK_DEFAULT_REGION Preferred region to deploy resources

Step II - Build Docker Image (Local Pipeline)

There is Makefile located at the root of this repository; please use a command below to build a docker image which acts as a pipeline to deploy AWS resources using Environment variables set in Step I.

make deploy

Credits

Copyright © 2022 Syniol Limited. All Rights Reserved.