How I built an affiliate tracking system in a weekend with serverless

Having taught thousands of students to build serverless applications via my online courses and workshops, I felt it was time to kick-start an affiliate program to boost sales. Affiliates would receive 50% of the revenue and get a 15% discount code for their audience. It feels like a good deal but I would need a …

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Help! How do I set DeletionPolicy to Retain for production only?

It’s a good practice to use CloudFormation’s DeletionPolicy to protect stateful resources such as DynamoDB tables or RDS databases from accidental deletions. Such as when someone accidentally deletes a CloudFormation stack! As I discussed previously [1], this is a much better way to guard against these accidental data losses than separating stateful and stateless resources …

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Static IP for Lambda: ingress, egress and bypassing the dreaded NAT Gateway

Many vendors require you to have a static IP address for your application. Such that all requests to their API must originate from an allow-list of IP addresses. In some cases, they even mandate that you use a static IP address for ingress traffic too. So they can communicate with your system through a trusted …

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Step Functions: combine Standard and Express workflows for fun & profit

Step Functions’ state machines come in two flavours. By understanding their strengths and limitations, you can harness the combined power of both to optimize your processes for efficiency and cost. Standard Workflows Optimal for: Business-critical operations like payment processing. Strengths: Suitable for low-throughput scenarios. High maximum duration ensures enough time for retries using exponential backoff. …

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Are we getting infrastructure all wrong in the Serverless era?

In my last conversation with Ben Kehoe on the real-world serverless podcast, he said something profound and it’s been bugging me ever since. And now I’m ready to infect you with this brain bug! You’re welcome ;-) On the infrastructure-from-code trend, Ben said: “I think infrastructure-from-code is wrong on all counts. I don’t think we should …

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