A Swiss Geek previously in Singapore, now in Portugal

Lambda

My First Lambda Container

AWS announced the support for running containers inside Lambda. Since I had a little side project that would benefit from it, I dived in. I passed through the 4 stages of a typical Re:Invent announcement: excitement, disappointment, anger and resignation.

Serverless E-Mail forwarder with AWS SES

If you don’t need (or don’t want to pay for) a real E-Mail solution for your domain, but just need to communicate nice looking addresses and have them forwarded to your real, fully fledged E-Mail host. Then this solution is for you.

Resize Images on the Fly

Clients know the best what sizes an image should be (screen size, dpr, …). Don’t pre-generate useless sizes and let them ask for the dimensions that suits them best.

Cors at the Edge

With the raise of API driven apps, CORS is becoming an unavoidable subject. By adding a CDN, your CORS rules become a burden on caching.

Creating a Serverless GeoIP API

Why build a GeoIP API when you can buy it directly from Maxmind or use their GeoIP Databases? Using the downloadable database works well when used on an instance. When you need it inside Lambda or Glue, it becomes difficult to keep it up-to-date. It becomes easier to use an external HTTP-API. Hosting it yourself reduces the response time by having it nearer to your apps and you can extend your service by combining multiples sources.

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