AWS announced general availability of AWS Lambda support for AWS X-Ray back in May. It’s taken me a while to try it out, and whilst I see plenty of values I think its current limitations significantly restricts its usefulness in a complex system. I found Lambda-specific documentations to be fragmented and I had to rely …
aws x-ray and lambda : the good, the bad and the ugly Read More »
TL;DR – The no. of partitions in a DynamoDB table goes up in response to increased load or storage size, but it never come back down, ever. DynamoDB is pretty great, but as I have seen this particular problem at 3 different companies – Gamesys, JUST EAT, and now Space Ape Games – I think it’s …
Beware of dilution of DynamoDB throughput due to excessive scaling Read More »
An interesting requirement came up at work this week where we discussed potentially having to run our own URL Shortener because the Universal Links mechanism (in iOS 9 and above) requires a JSON manifest at https://domain.com/apple-app-site-association Since the OS doesn’t follow redirects this manifest has to be hosted on the URL shortener’s root domain. Owing to a limitation on AppsFlyer it’s …
AWS Lambda – build yourself a URL shortener in 2 hours Read More »
part 1: overview <- you’re here part 2: testing and CI/CD part 3: ops part 4: building a scalable notification system part 5: building a better recommendation system Since Yubl’s closure quite a few people have asked about the serverless architecture we ended up with and some of the things we have learnt along the …
Yubl’s road to Serverless architecture – overview Read More »
Here’s the recorded live stream of the F# DSLs session I did at the F# |> Bristol user group last night. (apologies for the first few mins where I forgot to share my screen to the Hangout…) and here’s the slides to go with the talk: Tame cloud complexity with F#-powered DSLs from Yan Cui
Hi, thanks to everyone who turned up to my talk at LambdaDays this afternoon, here are the slides. Tame cloud complexity with F#-powered DSLs from Yan Cui You can find the source code for the projects I discussed below: DynamoDB.SQL : source code & nuget package SimpleWorkflow.Extensions : source code & nuget package CloudWatch.Selector : …
Hi, just a quick update on two of my libraries aimed at making AWS easier to work with from .Net. DynamoDB.SQL DynamoDB.SQL is a SQL-like external DSL for querying & scanning data in Amazon DynamoDB. Version 3.0.0 has been released, which moves away from the monolithic .Net AWSSDK (v2.x.x), and onto the DynamoDB specific package. You can …
Learn you to tame complex APIs with F#-powered DSLs from Yan Cui
Hi everyone, happy new year! I was really glad to find a couple of days to work on some of my open source projects and put together a new version of DynamoDB.SQL which brings it inline with the latest version of the .Net AWSSDK amongst other things. You can download and install it from Nuget …
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