Blog articles tagged 'serverless'

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on 5/1/2020 3:41 PM
I had been working on a client project where I built the GraphQL backend for a new social network using primarily AppSync, Lambda and DynamoDB. One of the features of the app was to support private messaging between two users. To allow either user to fetc[...]
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on 4/15/2020 11:56 AM
TL;DR To make an AppSync DynamoDB resolver throw exceptions on conditional check errors, we need to check $context.error in the response mapping template ourselves. Like this: #if ( $ctx.error ) #if ( $ctx.error.type.equals("DynamoDB:ConditionalCheckFaile[...]
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on 4/13/2020 4:23 PM
Have you been wondering about serverless but just don’t know how and where to start? Maybe you’re already building stuff with serverless, but don’t know if you’re doing it right? Are you unsure about the best practices for testing, monitoring and how to c[...]
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on 4/9/2020 2:13 AM
So you have built a serverless application, that, amongst other things, lets you upload images and files to S3. The set-up is very simple: API Gateway, Lambda and S3. It took you no time to implement and it works like a dream. You pat yourself on the back[...]
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on 3/21/2020 6:22 PM
Lambda invocations are charged in 100ms blocks of execution time. But the cost per 100ms of execution time depends on how much memory you allocate to the function. The higher the memory, the more CPU cycles and network bandwidth, but the higher the cost a[...]
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on 3/19/2020 5:51 PM
In this two-part conversation on Real-World Serverless, I spoke with Joe Emison about his experience with serverless and his latest venture, Branch, a home and auto insurance company that is built fully-serverlessly by a small team. Joe is easily one of t[...]
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on 3/15/2020 4:30 PM
In the first-ever episode of Real-World Serverless, I spoke with Ricardo Espirito Santo about the state of serverless adoption at Zoopla – how they’re using serverless, their experience with it so far, and the challenges they have faced. Zoopla is a UK co[...]
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on 3/5/2020 8:17 PM
I’m excited to announce that my new podcast Real-World Serverless is LIVE! It’s a brand new podcast where I discuss real-world use cases and challenges with serverless technologies with engineers who are building stuff with them and get their stories from[...]
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on 2/22/2020 6:01 PM
By now, you have probably heard that I’m running a number of public workshops all around Europe this year. How could you not, I have hardly shut up about it for a few weeks now :-P To help support the local communities and allow students and other under-r[...]
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on 1/13/2020 1:15 PM
Hi, I have some exciting news :-) I’m publishing a new video course “Learn you some Lambda best practice for great good!“. You can preorder the course right now for the special price of £9.99 (~$13) while I’m still working on the content. The first batch [...]
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