Simple Web App

A simple web application that takes the base and exponent numbers and finds the result using the following AWS services.

• AWS Amplify: Build full-stack web and mobile apps

• Amazon API Gateway: It is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs.

• AWS Lambda: It is a cloud service that lets you run code without provisioning or managing servers (serverless).

• Amazon DynamoDB: Serverless, NoSQL database.

• AWS IAM: Manage identities and access to AWS services and resources

How to

1. Create a web page (check the index.html)

2. Create a zip file of the index.html

3. Deploy the zip file (index.zip) using AWS amplify

4. Create a Lambda function called powerOfNumbers

   • paste the python code (powerOfNumbers.py) to the code part like below

     • 

   • Press the "Deploy" to deploy the code.S

5. Create a Rest API using Amazon API Gateway

• 

• Create a method and call the lambda function

  • 

• Select resource and enable CORS -> https://docs.aws.amazon.com/apigateway/latest/developerguide/how-to-cors-console.html

• Finally Deploy the API.

6. Save the result into the DynamoDB

• Create a Table

  • 

  • Give permission to Lambda function to be able to write/delete/read/update data to DynamoDB:

    • 

  • Update the python code in the Lambda (using powerOfNumbersWithSaveItDB.py) like below:

    • 

7. Update index.html to reach the API Gateway

• Replace "YOUR API GATEWAY ENDPOINT" value in the index.html with your API Gateway's endpoint.

  • 

  • Create a zip file of the index.html again.

  • Deploy the zip file (index.zip) using AWS amplify again.

  • Test it again

    • 

8. After completing your work/test, delete all the AWS resources that you have created:

• Delete the app from AWS Amplify

• Delete the table from DynamoDB

• Delete the function from Lambda

• Delete the API from API Gateway

• Delete the roles from IAM

Resources

1. AWS Project - Architect and Build an End-to-End AWS Web Application from Scratch, Step by Step - Tiny Technical Tutorials

2. https://aws.amazon.com/pm/lambda/

3. https://aws.amazon.com/amplify/

4. https://aws.amazon.com/api-gateway/

5. https://aws.amazon.com/dynamodb/

6. https://aws.amazon.com/iam/