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Dubbed simply Angular 5.0, this version builds on numerous changes made in previous releases. Stephen Fluin, developer advocate on the Angular team at Google, where his mandate is to help developers be more productive with Angular. Naturally, he’s on top of the changes in the latest release.
One of those changes was the bumping up of the included HTTP client to a new implementation, which was introduced earlier this year. With the release of Angular 5.0, the team is deeming this the new client by default, and recommending users move to the new implementation.
“We had an HTTP client previously,” said Fluin, “But there were a few API changes we wanted to make which would be breaking changes. The development team rearchitected the client based on what the framework’s designers observed in the field. Previously, the software left it to the developer how to extract JSON payload from the messages. “Now it’s automatic,” Fluin said. “It’s easier and smaller, we’ve reduced the size of the file you need to add to your app. We made it more powerful; We can use things like generics, and you can type the things coming back from the server or do interceptors to modify and intercept everything going out.
Fluin said this helps to keep server responses coherent and easier to work with. “When I make an HTTP get call I can say, ‘Hey, I know what I’m going to get back from the server. It will look like this, have this structure, this array, these are numbers, these are strings…’ I can give it an interface for a class and TypeScript will assume I’m getting back data for that class,” said Fluin.
The command line interface for Angular has been maturing along with the platform itself, said Fluin. “When we issued the CLI, we wanted to help developers get started who didn’t want to do the manual stuff on their own. It’s become the dominant way people get started with the Angular,” said Fluin.
One of the ways the team has improved the CLI is by breaking it out into its own project known as the Angular Development Kit. “The first version of the CLI we shipped had everything it could do in a single code base, from scaffolding new projects to modifying projects with new content, to building and deploying production bundles. We have a huge number of enterprises where they need to tweak one thing or customize the build into their tooling. We’ve started taking the wisdom in the CLI and pulling that out into individually consumable packages. Most people can use the CLI, but tooling vendors can now hook into just a piece of it,” said Fluin.
The Google Way
Fluin said that the future of the Angular platform may include a few internal Google tools, though he notes that this is still just in the consideration phase. “We want to take the best of what it’s like to be a developer at Google and empower the public to use that,” said Fluin.
This dovetails with the Build Optimizer, which has been turned on by default in Angular 5.0.0. “The build optimizer is a tool included in our CLI for making your bundles smaller using our semantic understanding of your Angular application,” Fluin wrote in a blog post.
Fluin said that the original vision of Angular 1 is still in existence today as a core motivator for the team. “If you look back to 2009, Angular was really trying to design a way of developing. If we could redesign how browsers worked back then, this is what we’d want application development to look like,” said Fluin.
“We’re pushing that forward. We’re actually a much simpler framework than we were before. It’s simpler than it used to be. We’re far more reliant on the modern web,” said Fluin. And that, he added, is what’s changed the most since Angular was created: the web and the browser.
“I think what happened was, probably about 2.5 to 3 years ago, the modern web started coming around. We started having typing systems, build systems, and all the intermediate steps that made development harder, but better. By embracing these and building on them, we’ve really rewarded a lot of developers,” said Fluin.
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