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 … Static IP for Lambda: ingress, egress and bypassing the dreaded NAT Gateway Read More » The post Static IP for Lambda: ingress, egress and bypassing the dreaded NAT Gateway appeared first on theb[...]

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. … Step Functions: combine Standard and Express workflows for fun & profit Read More » The post[...]

AWS announced a new feature this week that lets you enable WAF protection for Cognito user pools. And one of the things you can do with this is to implement geo-fencing and IP allow/deny lists. Geo-fencing and IP allow/deny lists are usually implemented in the frontend as well as the backend APIs. But users (and … How to setup geofencing and IP allow-list for Cognito user pool Read More » The post How to setup geofencing and IP allow-list for Cognito user pool appeared first on theburningmonk.com.

You might have encountered this issue when using Amplify to host your single-page applications. An image in the public folder would show up perfectly fine when running locally but it was not found on the live site after Amplify deployed your change. Curiously, this only happens with some images – jpeg, avif, webp… The reason … Amplify: how to fix images that show up locally but not after deployment Read More » The post Amplify: how to fix images that show up locally but not after deployment appeared firs[...]

Update 04/08/2022: turns out there are some valid reasons (analytics and potentially SEO) for redirecting from the apex domain to www. Please see comments from Michael Hart, Mike Lamb and Tyler Love to my tweet here for more details.   I have used Amplify to host all my single-page applications, including the newly revamped sites … Amplify: you shouldn’t allow redirect from apex to www Read More » The post Amplify: you shouldn’t allow redirect from apex to www appeared first on theburningmonk.com.