Serverless Contact Form using DynamoDB, Lambda Function, S3 Bucket, and API Gateway

Prerequisites

• AWS account
• Basic understanding of API Gateway
• Development Environment (VSCode)
• Familiarity with AWS Lambda
• Familiarity with DynamoDB

Get Started on the Project

1. Clone the Repository: Clone the project repository to your local machine using the following command:

2. Create an API Gateway URL:

• Within the AWS Console, create an API Gateway with a POST method.
• Copy the invoke URL of the newly created API Gateway.

3. Replace API Gateway URL:

• In your code, locate the SubmitDataAction function.
• Replace 'your-api-gateway-invoke-url-goes-here' with the copied API Gateway invoke URL.

4. Create an S3 Bucket:

• Create an S3 bucket to store your static assets (HTML, CSS, and JavaScript).
• Enable static website hosting for the S3 bucket.

5. Create DynamoDB Table:

• Create a DynamoDB table named "Contact Entries."
• Use "SubmissionID" as the partition key.

6. Create an S3 Bucket for Lambda Code:

• Create a new S3 bucket to store your Lambda function code.

7. Prepare and Upload Lambda Code:

• Navigate to the Lambda directory in the project.
• Run the following command to install the AWS SDK:

  npm install
  

• Zip the necessary files using the command:

  zip -r lambda.zip *
  

• Upload the lambda.zip file to the S3 bucket created in step 6.

8. Testing:

• Test your project by interacting with the API Gateway URL.
• The API Gateway will trigger the Lambda function, which will store form data in DynamoDB and utilize the S3 bucket for static assets.

Conclusion

Congratulations! You have successfully set up a serverless contact form using DynamoDB, Lambda Function, S3 Bucket, and API Gateway. This project demonstrates the power of serverless architecture in building scalable and efficient applications.