As Livongo expands its services beyond diabetes, it’s a good time to look at the technology that makes blood pressure monitoring possible. A proper scientific name for a blood pressure monitoring device is sphygmomanometer, which I personally find hard to pronounce, so for the rest of this post I’ll use more common, albeit unscientific name blood pressure monitor or BP monitor for … Continue reading “How Do Blood Pressure Monitors Work?”
Traditionally, we have utilized a normal file upload for user profile pictures, where we automatically center then crop after upload. This has a list of drawbacks. User can not edit the photo, and have no idea how it looks until image is uploaded. We don’t know how big the picture is until it is transferred to server-side. If image is … Continue reading “Canvas and Fabric.JS”
At Livongo we’ve been building our web APIs in Scala using the Play Framework since our inception in 2015, and overall we’ve been quite happy with both of these choices. We did, however, come to regret our early decision to use the Cake Pattern for dependency injection (DI), and have recently spent a LOT of time ripping it out of … Continue reading “From Runtime Dependency Injection to the Cake Pattern and Back”
