S3, SNS, Lambda Integration

This AWS CDK configuration sets up an automated workflow to trigger a specific Lambda function based on the prefix of files uploaded to Amazon S3. Using the SNS service with a filter policy, it directs events to the appropriate Lambda function efficiently.

Get Started

1. Install AWS CDK and Bootstrap Your AWS Account in a Specific Region

   npm install -g aws-cdk
   cdk bootstrap
   

2. Create a .env File with Your AWS Account ID

   AWS_ACCOUNT_ID=YOUR_ACCOUNT_ID
   

3. Install Dependencies

   1. Run the following command in the project root to install all dependencies:

      yarn
      

   2. Then navigate to the functions folder to install the required node modules for Lambda functions:

      cd ./functions yarn
      

4. Deploy to AWS

   • Use this command to deploy all stacks to AWS:

     cdk deploy --all
     

Try it out

After running the above commands, an S3 bucket will be created. Upload a file to one of the designated folders (e.g., folder1 or folder2). Depending on the folder, the corresponding Lambda function (e.g., lambda1 or lambda2) will be triggered automatically.