Integrating Azure Functions with Cosmos DB SQL API in .NET Core 2.2

Zach Gardner .NET Core, Azure, Technology Snapshot, Tutorial Leave a Comment

I am working on a project that leverages both Azure Functions as well as Cosmos DB. In trying to get both of these components wired together, I found that there are very few examples that work with the most recent versions of these components. I also saw examples that could work at a small scale, but don’t show industry-standard best practices, and would lead to performance issues if deployed in an environment with any meaningful traffic.

To that end, I put together this blog post showing how to set up an Azure Functions project in .NET Core 2.2 to integrate with Cosmos DB’s SQL API using its native tooling.

C# On The Client Side With Blazor

Clayton Terry .NET, CSS & HTML, Technology Snapshot Leave a Comment

With the introduction of .Net Core 3.0, Microsoft has built its own web UI framework.

Introducing Blazor: Microsoft’s fully C# client-side framework. With the help of its Razor platform, Microsoft is attempting to put its hat in the ring with the likes of Angular, React, and Vue.

Blazor allows developers to fully design and execute web pages purely with C# — it is meant to eliminate the need for JavaScript. The goal is also to hopefully limit the number of vulnerabilities found in front-end UI work.

In this post, we give an introduction to Blazor and a quick tutorial for getting started.

Using Apache POI With Protected Excel Files

Jonny Hackett Java, Problem Solving, Spring Batch, Technology Snapshot 1 Comment

While working on a recent project at a client, we had the opportunity to refactor some data extracts that were using a commercial Excel writing library, which we then converted to using the Apache POI Library for Excel. These data extracts were reports that included some calculated values, and depending on the client, were required to be password protected. When completed, the reports would be emailed to the recipients configured for each client.

In this post, we discuss the challenge of delivering protected Microsoft documents via email. We introduce a Java code solution for emailing password-protected Excel files when using the Apache POI Library.

Some of the required calculations we chose to implement using Excel formulas. Implementing formulas wasn’t a hard task and worked for what was needed.

Into the Core

James Bradley .NET, .NET Core, ASP.NET, Technology Snapshot, Tutorial Leave a Comment

The client I’m currently assisting has begun to move applications from more monolithic architecture into a more modern, cloud-based architecture. The organization is a bit of a .NET anomaly in that it is a company that’s primarily Java, yet has some .NET.

So even though Microsoft has a list of framework tools (such as Azure Service Fabric and Azure App Service), it’s fair to say that asking a primarily Java-focused company to use those tools could be an uphill battle. This is where .NET Standard and .NET Core have come to the rescue.

I work with a ton of smart people and I’m pretty amazed at how fast they can pick up on things from reading. I, however, cannot really understand it fully until I touch it. So let’s build a quick RESTful Web API step by step to see how challenging it is. We’ll be using .NET Standard, .NET Core, and ASP.NET Core.

Keyhole Sponsoring Azure Dev Days Kansas City 2018

Keyhole Software .NET, Azure, Community, Company News, Educational Event Leave a Comment

We are excited to announce Keyhole’s partnership with Microsoft to sponsor Azure Dev Days, a one-day workshop in Kansas City on Wednesday, April 25, 2018. This is a free community event to provide education on application modernization, microservices, and Microsoft Azure topics.

In addition to providing technical educators for this workshop, Keyhole Software will sponsor food and beverages. The topics Keyhole will champion include Microservices and Containers, as well as App Services.

Each technical session will be followed by a hands-on Azure lab and a whiteboard design exercise. This workshop will help attendees gain a thorough understanding of the components of Azure and how you can take advantage of them as a developer.

This is a traveling community event, with other events available to attend in St. Louis and Oklahoma City. The event will be held at the Microsoft offices in Overland Park…