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Zero Downtime Deployments with Octopus Deploy

If you’re using Octopus Deploy and AWS with their Elastic Load Balancer (v2) in front of EC2 instances that either self host or sit behind IIS, you can setup zero downtime deployments fairly easily. Although this blog post will focus on AWS ELB, the same strategy can be applied to Azure. Rolling Deployments First is to configure your process that deploys your web application within Octopus.  Octopus has the ability to perform the rolling deployments pattern: Rolling deployments are a pattern whereby, instead of deploying a package to all servers at once, we slowly roll out the release by deploying… Read More »Zero Downtime Deployments with Octopus Deploy

RESTful JSON: Adding Links to your APIs

There’s a new media type available, RESTful JSON, that was recently registered (Feb 1st 2018) with IANA.  It’s really the simplest possible media type to use in order to start adding links to your JSON APIs.  The new media type is application/vnd.restful+json  Adding Hyperlinks The simplicity here is that you can start using this media type with existing APIs to start adding links to your existing objects. JSON objects MAY include a url property to indicate a link to itself JSON objects MAY append _url to properties to indicate related links Example Here’s an existing payload of a e-commerce shopping cart.  It has one product… Read More »RESTful JSON: Adding Links to your APIs

State Driven UI in ASP.NET Core MVC

In most MVC applications when rending Razor Views, I think the tendency is to use the IUrHelperl.Action inside if anchor href or form action.  If you are using ASP.NET Core, maybe you are using tag helpers like anchor tag helper.  But there’s another option I don’t see very often, which is creating the relevant routes and define them in your ViewModel within in your controller action.   This can be really useful when you’re application’s available actions are driven by state. Razor Here’s a small example of a shopping cart.  The view model has a list of products that are in your… Read More »State Driven UI in ASP.NET Core MVC