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LessThanDot

A Technical Community for IT Professionals

Less Than Dot is a community of passionate IT professionals and enthusiasts dedicated to sharing technical knowledge, experience, and assistance. Inside you will find reference materials, interesting technical discussions, and expert tips and commentary. Once you register for an account you will have immediate access to the forums and all past articles and commentaries.

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Streaming Alerts using AWS Lambda, Kinesis, and DynamoDB

Recently I was talking to some friends about alerting on complex streaming data. Between some past event processing work we had done and earlier experience aggregating real-time manufacturing data, I was thinking a lot about projecting and evaluating results as we go versus querying the for results on some frequency. It seemed like a realistic […]

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Serverless HTTP + Kinesis Lambdas with Offline Development

Lately I’ve been exploring an idea around applying custom, user-defined rules to streams of events. I’m using a combination of technologies, but the core is a FaaS setup that I can run locally that utilizes the serverless package to deploy AWS Lambda functions that consume events from a Kinesis stream. I prefer the speed of […]

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The State of Software Engineering Report 2017

“It’s not just about software — the Enterprise is the System” The “Mastering Digital: Software Engineering Report” (2017) provides analysis of detailed feedback from Architects and Engineers about their work on software projects for organisations of all types and sizes. The report looks at the following: Demographics of the respondents (Company Types, Team Size, Project Spend, Role Types, etc) Performance of current […]

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Use ostress to load test a SQL database

Have you ever wondered how you could take one or more .sql files you captured as a workload and run them against a SQL Server or Azure SQL Database to test performance or impact? Microsoft has a free tool to do just that – ostress. Ostress.exe is part of the RML utilities. The first step […]

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Custom Authentication in ASP.Net Core 1 (without Identity)

Performing Authentication and Authorization has changed from ASP.Net to ASP.Net Core. Rather than relying on attributes, ASP.Net Core uses middleware similar to NancyFX and Rails. This is a short, step-by-step approach to implementing custom Authentication in ASP.Net Core without the overhead (and assumptions) of the new Identity model. The goal is to support basic necessities […]

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Testing your resx files to see if all languages have the same items.

It’s one of those things you need to when writing multilingual applications. Create resource file (resx) for each language you want to support. And then you add an item and forget to add it to one of language files and then, oops empty label. We don’t want that. And we write tests, so why not […]

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Deploying to ServiceFabric from TeamCity

Recently I’ve been working on an application that runs partially in Azure ServiceFabric. I’ve created a local cluster to work against and now it’s time to configure my TeamCity deployment to deploy upgrades to my application automatically. Initial details: Deploying 2 projects: a .Net 4.6.2 ASP.Net Core app to web app .Net 4.6.2 ServiceFabric project […]

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Creating a local Service Fabric Cluster

Working with Service Fabric and want a local cluster to test and develop against? Here’s the step-by-step path I took from a set of fresh Windows VMs to a running, secured Service Fabric cluster using self-signed X509 certificates. There are a number of Microsoft docs that cover this subject, this is a single beginning-to-end path […]

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Multiple NuGet Methods for VS2017 + MSBuild 15 in TeamCity

ASP.Net Projects and NuGet have been a moving target the last couple years. I have an ASP.Net Core project (.Net Framework) with several class libraries and had to work through a number of problems to get NuGet Restore working on a TeamCity CI server. Hopefully this will help someone else along the way. It turns […]

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Mapping Complex types to/from JSON with JSON.Net

In an earlier post I introduced a strongly typed Identity object I am using in an ASP.Net Core application to make my code and error messages more readable. I didn’t wanted that extra complexity reflected in my database or over the wire with an API. In this post we’ll look at a simple method to […]

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