https://omarmakled.com/tags/image-processing/ Recent content in Image Processing on {O} Hugo -- 0.151.1 en-us https://omarmakled.com/posts/sam-s3-event/ Mon, 01 Jan 0001 00:00:00 +0000 https://omarmakled.com/posts/sam-s3-event/ <p>This example demonstrates a robust serverless architecture on AWS for handling file uploads and automated thumbnail generation. It leverages <strong>AWS SAM (Serverless Application Model)</strong>, <strong>Lambda functions</strong>, <strong>API Gateway</strong>, and <strong>S3 event notifications</strong> to create a streamlined and scalable image processing pipeline.</p> <hr> <h3 id="project-structure">Project Structure</h3> <p>Here&rsquo;s a quick overview of the project&rsquo;s key components:</p> <ul> <li><strong><code>functions/</code></strong>: Contains the core Lambda function code: <ul> <li><code>event.mjs</code>: Handles S3 event notifications, triggering the thumbnail generation process.</li> <li><code>upload.mjs</code>: Manages the initial file upload through API Gateway.</li> </ul> </li> <li><strong><code>layers/nodejs/</code></strong>: A Lambda layer containing shared code and dependencies for the functions: <ul> <li><code>lib/utils.mjs</code>: Common utility functions.</li> <li><code>package.json</code> &amp; <code>package-lock.json</code>: Node.js dependencies for the layer.</li> </ul> </li> <li><strong><code>template.yaml</code></strong>: The AWS SAM template defining the serverless resources: Lambda functions, API Gateway endpoints, S3 buckets, and their respective permissions and event triggers.</li> </ul> <hr> <h3 id="how-it-works">How It Works</h3> <p>The workflow is straightforward and efficient:</p>