Best Practice – AzureDays

Requirements, plan for your enterprise Azure Subscription for production

June 1, 2020

You can get started in Azure. But soon it becomes time to build your subscriptions for your enterprise. For example, giving unrestricted access to developers can make your devs very agile, but it can also lead to unintended cost consequences. In addition, you will want to have requirements to demonstrate compliance for security, monitoring, and resource access control.

In this article we help organize some thoughts around the strategy and plan for building out your cloud, including a plan that you can put into Azure DevOps.

The Cloud Adoption Framework provides guidance for in depth analysis and preparation for your cloud.

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CloudDays™ – Quick Start to Azure Redis Cache

February 9, 2015

Azure Redis Cache helps your application become more responsive even as user load increases and leverages the low latency, high-throughput capabilities of the Redis engine. This separate distributed cache layer allows your data tier to scale independently for more efficient use of compute resources in your application layer.

Redis is an open source, BSD licensed, advanced key-value cache and store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets, sorted sets, bitmaps and hyperloglogs. Redis supports a set of atomic operations on these data types.

Microsoft Azure Redis Cache is based on this cache and store. It gives you access to a secure, dedicated Redis cache, managed by Microsoft, providing the best of both worlds: the rich features and ecosystem of Redis, and reliable hosting and monitoring by Microsoft.

You can use Redis from most programming languages used today.

Azure Redis Cache leverages Redis authentication and also supports SSL connections to Redis.

The purpose of this article is to help you decide if Azure Redis is the right technology for your project. The Azure documentation is pretty good to help you get started, but is spread all over the place, so this article focuses on the steps to get started, and gives you a peek into what your code looks like. (If you are like me, you can often tell if the technology is a good fit by seeing code.)

NOTE: Of course, you can use Redis without Azure. For more information on that, see Distributed Caching using Redis Server with .NET/C# Client.

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CloudDays™ Quick Start – Introduction to Design Methodology, Patterns for REST

January 20, 2015

In his talk on Some REST Design Patterns (and Anti-Patterns), Cesare Pautasso explains, “REST architectural style is simple to define, but understanding how to apply it to design concrete REST services in support of SOA can be more complex.”

Several SOA Design Patterns:

Uniform Contract
Endpoint Redirection
Content Negotiation
Idempotent Capability

In this post, you will learn the design methodology, walk through a step by step scenario where the client and server trade information to perform a set of actions, and you will learn more about the SOA design patterns.

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CSS Tutorial – Font Sizing

July 27, 2014

You can use Cascading Style Sheets (CSS) is to modify the font or typography of the page. There are several ways to describe font sizes.

In the font-size property, you’ll know that there are many different measurements to use when defining the size of the font.

Relative lengths

xx-small through xx-large – relative to the default browser font size
percentages – relative to the surrounding text
em and ex – relative to the parent element
pixels – relative to the screen resolution

Absolute lengths

points and picas – print units
inches, centimeters, and millimeters – length units

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Snippet – What to Do About Old Browsers

July 23, 2014

Web sites reflect the company’s professional image. If your site renders improperly or not at all, your company’s reputation can be tarnished. If your site has browser display problems, visitors and potential customers will leave your site and not look back.

In the post Using Modernizr, Polyfills, YepNope, you learned how you can support browsers that might not have the capabilities that you need. But at some point you may not be able to support really old browsers. At that point, you may just want to recommend the user update. Even for enterprise apps, you will want to remind users to use a current browser rather than have your app fail because your app is expecting something that does not exist.>p>You can use the following code to help your users get up to date browsers. Continue reading “Snippet – What to Do About Old Browsers”

Object JavaScript – Asynchronous JavaScript Promises Using Q

April 21, 2014

Q is a library that implements the standard and has some extra helpers. Q works in the browser and in node.js.

Q was designed to provide a robust way to provide you ways to write asynchronous code cleanly.

If a function cannot return a value or throw an exception without blocking, it can return a promise instead. A promise is an object that represents the return value or the thrown exception that the function may eventually provide. A promise can also be used as a proxy for a remote object to overcome latency.

You can read the specifications for Q at Promises A+, which aims to clarify “the behavioral clauses of the Promises/A proposal, extending it to cover de facto behaviors and omitting parts that are underspecified or problematic.”

You use deferreds and promises in ways similar to the ways you would use them in jQuery. However, Q has some important features.

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Object JavaScript – Asynchronous Programming Using Promises

April 15, 2014

Promises are a way that lets us write asynchronous code that is almost as easy to write as if it was synchronous.

You need promises as soon as you do anything that involves an asynchronous API. It also does not take very long before writing promise chains for sequential asynchronous operations becomes second nature.

A Promise is an object that basically represents a process that is or will take place at some point in time, but allows you to register callbacks to it for when the process gets terminated or completed.

Instead of blocking and waiting for the long-running computation to complete, a promise returns an object which represents the promised result.

In this post, you will get an introduction into JavaScript promises.

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Object JavaScript – Using the ‘this’ Keyword

April 11, 2014

this is a special word in JavaScript that is important whenever you are thinking in object-oriented terms.

The value of this inside a function, effectively depends on the object which called it. The ECMAScript Language Specification says, “The this keyword evaluates to the value of the ThisBinding of the current execution context.”

The use of the “this” keyword inside a function should be familiar to the C++/C# developers among us—it refers to the object through which the method is called ( developers who use Visual Basic should find it familiar, too—it’s called “Me” in Visual Basic).

This post borrows heavily from Daniel Trebbien’s response from JavaScript “this” keyword and some added examples from Ray Djajadinata’s article in MSDN Magazine, Create Advanced Web Applications With Object-Oriented Techniques.

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