The combination of API Gateway and Lambda is very powerful. It allows you to build some complex functionalities without maintaining any virtual machines yourself. Lambda can be hooked up to many other (AWS) Services including DynamoDB, Kinesis and S3. This paradigm, better known as serverless, is truly upcoming for years now and its certainly time to jump on the bandwagon if you haven’t done so already. One of the better-known use cases of AWS Lambda is the generation of thumbnail images as images are inserted into S3. In this blog post we will go one step further and generate images based on the URL and return the image as a binary through API Gateway. The number of possibilities this unlocks are pretty much countless, including the generation of charts, bar codes, dynamic icons and much more.
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