Releases: https://github.com/OmarThinks/AWS-Full-Stack-Project/tags

I will shut these links down when I am done with the application.
I will turn every thing off so that I do not get out of AWS Free Tier.
Keeping these links alive might get me out of AWS Free Tier.

https://dev9463.d1pi9xfkfb20dm.amplifyapp.com/

This is the link of the Frontend Application with React.
You can input first name and last name.

This is a very basic lambda function.

• Inputs (JSON):
  • firstName (String)
  • lastName (String)
• Output:
  • "Hello from Lambda, " + firstname + lastName
• Example:
  • Input:

{
  "firstName": "Omar",
  "lastName": "Magdy"
}

- Output:

{
  "statusCode": 200,
  "body": "\"Hello from Lambda, Omar Magdy\""
}

• https://67nbvuy3t1.execute-api.us-east-2.amazonaws.com/dev
  • Method: POST
  • Reuest Body: JSON
  • Inputs:
    • firstName (String)
    • lastName (String)

Example:

Input:

curl --location --request POST 'https://67nbvuy3t1.execute-api.us-east-2.amazonaws.com/dev' \
--header 'Content-Type: application/json' \
--data-raw '{
    "firstName":"Omar",
    "lastName":"Magdy"
}'

I have also used a Postman collection to test the request.

Output:

{
    "statusCode": 200,
    "body": "\"Hello from Lambda, Omar Magdy\""
}

I have made the permissions that anyone can access and delete the data in the DynamoDB Database.
This is the permissions JSON.

{
"Version": "2012-10-17",
"Statement": [
    {
        "Sid": "VisualEditor0",
        "Effect": "Allow",
        "Action": [
            "dynamodb:PutItem",
            "dynamodb:DeleteItem",
            "dynamodb:GetItem",
            "dynamodb:Scan",
            "dynamodb:Query",
            "dynamodb:UpdateItem"
        ],
        "Resource": "<Database ARN>"
    }
    ]
}

And this is the New python code:

import json
import boto3
from time import gmtime, strftime

dynamodb = boto3.resource('dynamodb')
table = dynamodb.Table('HelloWorldDatabase')
now = strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime())

def lambda_handler(event, context):
    name = event['firstName'] +' '+ event['lastName']
    response = table.put_item(
        Item={
            'ID': name,
            'LatestGreetingTime':now
            })
    return {
        'statusCode': 200,
        'body': json.dumps('Hello from Lambda, ' + name)
    }

There is a unique ID to each record.

I used these guides to help me develop an aoolication by myself.

1. https://aws.amazon.com/getting-started/learning-path-full-stack-developer/
2. https://aws.amazon.com/getting-started/hands-on/build-react-app-amplify-graphql/