This pattern creates an Amazon API Gateway Regional rest API with an Edge-Optimized domain name. The API is integrated with a Lambda function in python3.9.

Learn more about this pattern at Serverless Land Patterns: https://serverlessland.com/patterns/apigw-domain-edge-lambda

Important: this application uses various AWS services and there are costs associated with these services after the Free Tier usage - please see the AWS Pricing page for details. You are responsible for any AWS costs incurred. No warranty is implied in this example.

• Create an AWS account if you do not already have one and log in. The IAM user that you use must have sufficient permissions to make necessary AWS service calls and manage AWS resources.
• AWS CLI installed and configured
• Git Installed
• AWS Serverless Application Model (AWS SAM) installed

1. Create a new directory, navigate to that directory in a terminal and clone the GitHub repository:

   git clone https://github.com/aws-samples/serverless-patterns
   

2. Change directory to the pattern directory:

   cd apigw-domain-edge-lambda
   

3. From the command line, use AWS SAM to deploy the AWS resources for the pattern as specified in the template.yml file:

   sam deploy --guided
   

4. During the prompts:

   • Enter a stack name
   • Allow SAM CLI to create IAM roles with the required permissions.

   Once you have run sam deploy --guided mode once and saved arguments to a configuration file (samconfig.toml), you can use sam deploy in future to use these defaults.

5. Note the outputs from the SAM deployment process. These contain the resource names and/or ARNs which are used for testing.

This patterns creates an edge-optimized custom domain name associated with a regional REST API with a lambda integration.

You will need :

• A route53 Hosted zone
• An ACM Certificate in the US-EAST-1 region. See how to request a public certificate here.
• The domain name choosen needs to match or be a subdomain of the domain name on the certificate. See more here.

Enter the ARN of the certificate (which is in us-east-1) and the custom domain name in the parameters of the template.

Create a new record in your Hosted zone in route53 :

• enter the same name you chose for your API domain name
• check the alias tick box
• route traffic to API Gateway/ the region where your API is /your API endpoint which should look like [distribution-id].cloudfront.net
• create records

Then try to make a request to the custom domain name from your browser, postman or using the curl command.

Eg :

curl https://yourdomainname/com

The expected answer is : "Hello World! This is the edge-optimized custom domain name and the regional API"

1. Delete the stack

   aws cloudformation delete-stack --stack-name STACK_NAME

2. Confirm the stack has been deleted

   aws cloudformation list-stacks --query "StackSummaries[?contains(StackName,'STACK_NAME')].StackStatus"

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