Cdk

Introduction In the last two weeks, I released a few CDK stacks: I made some experiments around API Gateway and service integration that came out in two serverless forms, the Contact Form and the Upload Form, read to be deployed in your static web page 😎. Actually, with CDK you can do so much more and so much more easily. The last stack I released - a producer-consumer chain presented here - it was a way I used to introduce how you can leverage Typescript inheritance to recycle an old stack and build on top of it. In this last step of this cycle, I will extend this concept once again to build - DRUMROLL - an OCR Serverless solution to be integrated into your application. The use cases are multiple: imagine you want to create podcasts of course lessons on top of your notes, to be able to listen to them during your trip to office or university or whenever you want. Imagine an application to help blind people - like the Be My Eyes app - to read documents without the help of no ones but AWS Services. Well, the use cases are endless so… let’s go! ...

Introduction A few days ago I wrote about a simple stack that leverage API Gateway and Lambda-proxy integration to create a safe upload endpoint to let unknown users push inside a bucket of your choice. The stack I will present today is can be used to build a producer-consumer chain, by implementing the SQS Extended pattern you can find in AWS exams. For the most curious, here you can find the core code. ...

Introduction The AWS CDK is becoming day by day pretty easy to use. I use Typescript, and today I will talk about a common use case: a simple Upload Endpoint for your API Gateway than like a LEGO can be built with a few instructions and of course…without the need of any server. For the most curious, here you can find the core code. Scenario You want to provide an endpoint to upload object: where? S3, of course. How? With a pre-signed a URL! What is it? A pre-signed URL it’s a URL that gives someone access to the object identified in the URL, provided that the creator of the pre-signed URL has the permissions to access that object. That is, if you receive a pre-signed URL to upload an object, you can upload the object only if the creator of the pre-signed URL has the necessary permissions to upload that object. ...

Introduction Hi everybody, thanks for the claps, it was a great month - rain rain rain again - now I’m back. The only GOOD THING of this terrible May is that AWS CDK came to simplify our life and I started using it (just a little) bit - still, enough to say, sincerely: it’s awesome. I used the Typescript version, everything is broken 2 release out of 3 but the time you save exploring the interfaces instead of looking for Cloudformation documentation online worths the time spending in troubleshooting the ongoing changes. Today I’m here to write about a common use case, a simple stack, and that’s all I have to say. ...

Prelude As you know might be aware of, AWS has quite recently delivered - but it’s still in beta - the AWS Cloud Development Kit (CDK). Indeed, you should also know that I more recently migrated my blog to AWS as part of my migration strategy to the clouds - where my head already sits since 1991. Since I was using a Cloudformation stack though together with one of my colleagues, and since I did some manual changes to it - breaking the rules, I know - I decided it was a good moment to give a chance to CDK. I was waiting for Golang implementation to come up, but in the end, Typescript is fair enough: it not only add Types, but the interfaces will let you be so much more effective in reading the docs and find out what is missing / what is wrong in your template. Sorry, in your code 😃. ...