Fixed actions failure and added Readme

.github/workflows/main.yml

@@ -29,55 +29,52 @@ jobs:
       - name: Debug List files
         run: ls -al
 
-      - name: Install frontend dependencies
-        run: |
-          npm install
-        working-directory: ./frontend
-
       - name: Install backend dependencies
         run: |
+          cd cdk
           npm install
-        working-directory: ./cdk
 
       - name: Synthesize CDK
         run: |
+          cd cdk
           export FRONTEND_STACK_EXPORTS_AVAILABLE=false
           npx cdk synth
-        working-directory: ./cdk
 
       - name: Deploy BackendStack
         run: |
+          cd cdk
           npx cdk deploy BackendStack --require-approval never
-        working-directory: ./cdk
 
       - name: Get API Gateway URL
         id: get-url
         run: |
           api_url=$(aws cloudformation list-exports --query "Exports[?Name=='ApiGateway'].Value" --output text)
-          echo "API_URL=${api_url}"
-          echo "REACT_APP_API_GATEWAY_URL=${api_url}" > frontend/.env
           echo "API_URL=${api_url}" >> $GITHUB_ENV
-        working-directory: ./frontend
+          echo "REACT_APP_API_GATEWAY_URL=${api_url}" > frontend/.env
 
-      - name: Debug Print .env file contents
+      - name: Print .env file contents
         run: |
-          ls -al frontend
-          cat frontend/.env || echo ".env file not found"
-        working-directory: ./frontend
+          cd frontend
+          cat .env
+
+      - name: Install frontend dependencies
+        run: |
+          cd frontend
+          npm install
 
       - name: Build frontend
         run: |
+          cd frontend
           export BUILD_PATH=../cdk/resources/build
           npx react-scripts build
-        working-directory: ./frontend
 
       - name: Deploy FrontendStack
         run: |
+          cd cdk
           npx cdk deploy FrontendStack --require-approval never
-        working-directory: ./cdk
 
       - name: Deploy BackendStack with exports available
         run: |
+          cd cdk
           export FRONTEND_STACK_EXPORTS_AVAILABLE=true
           npx cdk deploy BackendStack --require-approval never
-        working-directory: ./cdk

README.md

@@ -0,0 +1,93 @@
+# AWS-S3-Secure-File-Manager-Starter
+
+**AWS-S3-Secure-File-Manager-Starter** is a boilerplate starter code for a serverless file management application using AWS services. This application demonstrates secure and efficient file uploads using presigned URLs, enabling scalable and cost-effective file management.
+
+## Features
+
+- **Secure File Uploads**:
+  - **Least Privilege Principle**: Presigned URLs grant temporary, limited access for file uploads, minimizing risk and exposure.
+  - **No Lambda Permissions Needed**: Uploads are handled directly by S3, reducing Lambda's role and associated security risks.
+
+- **Scalable Architecture**:
+  - **Direct Upload to S3**: Clients upload files directly to S3, bypassing Lambda and enhancing scalability and performance.
+
+- **Performance Optimization**:
+  - **Faster Uploads**: Bypassing Lambda for uploads reduces latency and improves performance.
+
+- **Cost Efficiency**:
+  - **Reduced Lambda Execution Time**: Minimizes compute resource usage and costs by handling uploads directly through S3.
+
+- **Simplicity and Flexibility**:
+  - **Client-Side Control**: Customizable upload parameters and control directly from the client application.
+
+## How It Works
+
+1. **Generating Presigned URLs**:
+   - Your backend generates presigned URLs using AWS SDKs. These URLs are temporary and scoped to specific S3 operations.
+
+2. **Client-Side Upload**:
+   - The React frontend receives the presigned URL and uses it to upload files directly to S3 via HTTP PUT or POST requests.
+
+3. **Security and Validation**:
+   - AWS validates the presigned URL parameters, ensuring that only authorized uploads are accepted.
+
+## Example Use Case
+
+**Scenario**: Uploading user-generated files to an S3 bucket.
+
+**Implementation**: Lambda functions generate presigned URLs for each upload request.
+
+**Advantages**:
+- Simplified architecture
+- Reduced Lambda execution time and costs
+- Enhanced security with temporary, scoped access
+
+## Getting Started
+
+To set up the project locally:
+
+1. **Clone the Repository**:
+    ```bash
+    git clone https://github.com/yourusername/AWS-S3-Secure-File-Manager-Starter.git
+    cd AWS-S3-Secure-File-Manager-Starter
+    ```
+
+2. **Install Dependencies**:
+
+    - **For the frontend**:
+        ```bash
+        cd frontend
+        npm install
+        cd ..
+        ```
+
+    - **For the backend (CDK)**:
+        ```bash
+        cd cdk
+        npm install
+        ```
+
+3. **Configure AWS CLI**:
+   Ensure AWS CLI is configured with your credentials:
+    ```bash
+    aws configure
+    ```
+
+4. **Deploy the Application**:
+    - Run the deployment script:
+        ```bash
+        ./deploy.sh
+        ```
+
+5. **Run the Application Locally**:
+    - Start the frontend:
+        ```bash
+        cd frontend
+        npm start
+        ```
+
+    - Open [http://localhost:3000](http://localhost:3000) in your browser.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.