User uploads an image into a specific S3 bucket (say, Source bucket).

The flow of this diagram can be described as: A high-level design of our imaging service would look like the following: Then this function reads the image and uploads a manipulated image into another bucket. We can create a Lambda function that this bucket would invoke after an image is uploaded into it. This notification system is used to manipulate the image which is uploaded to a separate bucket. In Amazon S3, you can add a bucket notification configuration identifying the type of event you want Amazon S3 to publish and the Lambda function you want to invoke.

This integration lets you write Lambda functions that process Amazon S3 events. The WorkflowĪmazon S3 publishes events (for example, when an object is created in a bucket) to AWS Lambda and invokes your Lambda function by passing the event data as a parameter. There are plenty more operations that you can perform with GcImaging. Here are the operations that we'll perform:

In this blog, we'll design a service that reads an image uploaded to S3 and creates a grayscale thumbnail with a watermark. GcImaging is distributed as standalone NuGet packages, available directly from. Designing the service GcImaging and Image operations

we'll discuss how we can leverage this compatibility of GrapeCity Documents with Lambda functions and extend this to GcImaging for creating an imaging service over AWS S3 events. You can create, load, modify, crop, resize, convert, and draw images.Įarlier we discussed how GrapeCity Documents can be used to generate documents (PDF and Excel) on top of AWS Lambda. GrapeCity Document for Imaging (or GcImaging) is a high-speed, feature-rich API to process images in.

Create thumbnail from pdf