My colleague Brian recently wrote about Azure Functions in F#. Azure Functions are great, and I definitely recommend them if they fit your use case.
These functions are built on top of an older background processing system called WebJobs. While Functions have largely eclipsed WebJobs, there remain certain [situations][webjobs-vs-functions] where the latter is still a better fit. Read more on Creating Azure WebJobs in F#…
Circular dependencies (also known as cyclic dependencies) occur when two or more modules reference each other.
This could be a direct reference (A -> B -> A):
// file a.ts
import { b } from 'b';
...
export a;Read more on Eliminate Circular Dependencies from Your JavaScript Project…
Node.js is just JavaScript, right? So it should be really easy to run Node.js applications on Windows—just download and install Node, npm install, and go, right?
Well, for some applications, that’s true. But if you need to compile extensions, you’ll need a few more things. And, of course, with Node.js itself being constantly under development, you’ll want to lock down your development to a version your code can use. In this post, I’ll talk you through how we get our Windows command-line environments set up for the Node.js (actually, Electron) application my team is developing.
Read more on Setting Up Windows to Build and Run Node.js Applications…
Redux and Apollo are popular implementations of Flux architecture and GraphQL respectively. A common pattern is to make a GraphQL query with data from the Redux state. If the state value changes, Apollo should re-run the query and the new data should be reflected in the UI. Read more on Combining Redux & Apollo Containers…
The application I’m working on right now has a search box that makes suggestions as the user types and does quick, inline searches to provide extra-fast results. Yesterday, I talked about how we improve our timing with debouncing. Today I’ll dive into the technical details of how we built the autocomplete behavior using React–Redux and Apollo. Read more on Efficient Search Autocomplete with React-Redux & Apollo…
If you’ve ever glanced at Azure Functions and F#, you might think they were made for each other. And yet if you want to create a new Azure Function project in Visual Studio, C# is apparently your only option.
Maybe someday, Visual Studio will include support for Azure Functions in F#, but for now it’s possible to get there by adapting the C# Azure Function template. After all, F# is a first-class language on the .NET CLR, and it’s all the same once it’s compiled anyway. Read more on Azure Functions in F# (For Real)…
Heroku will terminate a request connection if no data is sent back to the client within 30 seconds. From Heroku’s Router – HTTP timeouts documentation:
HTTP requests have an initial 30-second window in which the web process must return response data (either the completed response or some amount of response data to indicate that the process is active). Processes that do not send response data within the initial 30-second window will see an H12 error in their logs.
There are times when you want to merge two generic types in TypeScript, and type inference just isn’t doing it for you. Object.assign’s typing isn’t as precise as it could be, and spreading generics still doesn’t work. I’ve found a way to implement typing when merging objects using some of the new features in TypeScript 2.8.
Read more on Type-Safe Object Merging (TypeScript 2.8 Edition)…
In the wise words of @stahnma,
“Everybody has a testing environment. Some people are lucky enough to have a totally separate environment to run production in.”
Thankfully, the project I’m working on has multiple environments: production (the most recently-released version), staging (for pre-release testing), dev (for dev team use and testing), and multiple review apps (for feature validation). Read more on Avoid Careless Production Mistakes with Custom Scripts…
HHVM and Hack are some interesting innovations that Facebook has brought to the PHP ecosystem. In this post, I’m going to explore a few aspects about each of these technologies, including their features, development experience, and platform support. Read more on An Intro to HHVM and Hack for PHP…