Create DynamoDB Database

1. Navigate to DynamoDB dashboard
2. Click Create table
3. Table name: Lambda-DynamoDB
4. Partition key: id (String)
5. Table settings: Leave default
6. Click Create table

Create Lambda API Function

1. Navigate to Lambda dashboard
2. Click Create function
3. Author from scratch
4. Function name: Lambda-DynamoDB-LambdaAPI
5. Runtime: Node.js 20.x
6. Change default execution role
   1. Create a new role from AWS policy templates
   2. Role name: Lambda-DynamoDB-LambdaAPI
   3. Policy templates: Simple microservices permissions
7. Click Create function

Create Lambda Authorizer Function

1. Navigate to Lambda dashboard
2. Click Create function
3. Author from scratch
4. Function name: Lambda-DynamoDB-LambdaAuthorizer
5. Runtime: Node.js 20.x
6. Click Create function

Create API Gateway

1. Navigate to the API Gateway Dashboard
2. Click Create API
3. Choose HTTP API
4. Add integration
   1. Choose Lambda
   2. Find and select the new lambda function
   3. API name: Lambda-DynamoDB-APIGateway
5. Configure routes
   1. GET /items -> Lambda-DynamoDB-LambdaAPI (integration)
   2. POST /items -> Lambda-DynamoDB-LambdaAPI (integration)
   3. GET /items/{id} -> Lambda-DynamoDB-LambdaAPI (integration)
   4. PUT /items/{id} -> Lambda-DynamoDB-LambdaAPI (integration)
   5. DELETE /items/{id} -> Lambda-DynamoDB-LambdaAPI (integration)
6. Define stages
   1. Leave stage name = "$default"
   2. Leave "Auto-deploy" checked
7. Click Create

Add authorizer to API Gateway

1. Navigate to Authorization
2. Open the tab named Manage authorizers
3. Click Create
4. Choose Lambda
5. Name: Lambda-DynamoDB-LambdaAuthorizer
6. Lambda function: Lambda-DynamoDB-LambdaAuthorizer
7. Click Create
8. Open the tab named Attach authorizers to routes
9. Click each route, select the authorizer we just created and click Attach authorizer

Fork GitHub Repository

1. Open https://github.com/robertwelch/Lambda-DynamoDB
2. Click Fork

Add GitHub Secrets

1. API_GATEWAY_URL
2. AWS_ACCESS_KEY_ID
3. AWS_REGION
4. AWS_SECRET_ACCESS_KEY
5. DYNAMODB_TABLE_NAME
6. LAMBDA_API_NAME
7. LAMBDA_AUTHORIZER_KEY
8. LAMBDA_AUTHORIZER_NAME

Kickoff GitHub Actions workflow

1. Navigate to your github repo actions
2. Click the job named Build and deploy to Lambda
3. Click Run workflow
4. Make sure branch is set to main and click Run workflow
5. This workflow will test locally using the AWS security credentials you provided in the secrets

Testing locally

1. Copy api/env_example to api/.env
2. Add the same environment variables as your GitHub repository secrets plus the LOCAL_PORT number.