Share Housework AWS Serverless Backend

1. AWS Resources Used

• API Gateway
  • HTTP API
• CloudFormation
• Cognito
  • User Pool
• DynamoDB
• IAM
• Lambda
• S3 (implicit use by SAM)

2. Configure Before Deploying to AWS

2.1. Edit template.yaml

Remove either the postfixes .dev or .prod for different environment.

Create an IAM Role for Lambda functions, attaching the AmazonDynamoDBFullAccess and AWSLambdaBasicExecutionRole AWS managed policies to the role, and put the role's ARN in this file as a YAML anchor.

Create a Cognito User Pool and its app client, remember to not generate an app client secret, then follow the comments in template.yaml.

2.2. Edit samconfig.toml

Remove either the postfixes .dev or .prod for different environment.

Edit stack_name, or change it in the later steps when deploying using the SAM CLI --guided option.

3. Deploy with AWS SAM

sam build
sam deploy --guided

3.1. Update CORS for HTTP API

In the AWS API Gateway console, update the CORS for the API with the following:

• Access-Control-Allow-Origin: *
• Access-Control-Allow-Headers: authorization, content-type
• Access-Control-Allow-Methods: *