AWS Archives

Building a custom IAM system has made me appreciate AWS IAM even more

AppSync, AWS, Lambda, Programming, Serverless

In the last post I discussed my preferred approach for modelling multi-tenant applications with AppSync and Cognito. This approach supports the common requirements in these applications, where there are a number of distinct roles within each tenant. This approach (and others like it) works great when the tenants are isolated. But what if they are …

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How to model one-to-many relationships with AppSync and DynamoDB

AppSync, AWS, DynamoDB, Programming, Serverless

Thank you to Josh for asking this question on the AppSync Masterclass forum. His original question goes like this: Let’s say I want to add a one-to-many relationship from Profile to a new property called “Tag” (a complex object with “name” and “color” properties) so a user can define their own Tags. I would also like a …

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How to secure multi-tenant applications with AppSync and Cognito

AppSync, AWS, Cognito, Serverless

One of the most common questions I get is “How do I build a multi-tenant application with AppSync and Cognito?”. If you google this topic on the internet you will no doubt come across many different opinions. It’s a topic that we’ll soon explore in the AppSync Masterclass but I want to take this opportunity …

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The case for and against Amazon Cognito

AWS, Programming

Should you consider Amazon Cognito in your project?

We’ve got the pros & cons for you, and many of the painpoints you need to consider.

My top picks from re:Invent 2020 week 1

AWS, Serverless

All the sessions during week 1 are available to watch on-demand now. You can access them via the official reinvent portal here. Here are my top picks for sessions to watch, in no particular order. “Building technology standards at Amazon scale” by Marc Brooker You can watch the session here, and here‘s my notes for the session. “Monitoring …

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What you need to know about Aurora Serverless v2, so far.

AWS, Serverless

I’ve gotten a few questions about Aurora Serverless v2 preview, so here is what you need to know about Aurora Serverless v2 during preview. Q: Does it replace the existing Aurora Serverless offering? A: No, it lives side-by-side with the existing Aurora Serverless, which will still be available to you as “v1”. Q: …

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Serverless at re:Invent 2020 – hot takes #1

AWS, Serverless

During this re:Invent, I’m sharing with you the biggest serverless-related announcements and what they mean for you in a series of hot-takes. Starting with, the biggest announcements from today’s keynote, plus a bunch of other important announcements just before r:Invent. 1. Lambda changes billing to per ms Lambda now bills you by the ms as …

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How I built a social network in 4 weeks with GraphQL and serverless

AppSync, AWS, GraphQL, Programming, Serverless

I have been involved with a client project to help the client launch a new social network for university students to engage with each other to do sports. Amongst other things, users can: Arrange activities and ask to join others’ activities (like a basketball match or to run in the park). There’s private messaging. Users …

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“Even simple serverless applications have complex architecture diagrams”, so what?

AWS, Serverless

I often hear people complain that even simple serverless architectures look complex on paper.

Let me tell you why this misses the point.

AppSync Masterclass is open for early access!

AppSync, AppSync Masterclass, AWS, Serverless

I have some exciting news to share with you. That after some initial delays, the AppSync Masterclass is now open for Early Access with 40% launch discount. First of all, thank you so much for your patience, it’s taken us a bit longer than we expected but we’re here, at last. You can purchase the …

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