The slides from Calum’s presentation about progressive web apps. There are links throughout to some handy resources.
This primer on progressive web apps starts by dispelling some myths:
- Your thing does not have to be an “Application” to be a PWA.
- PWAs are not specifically made for Google or Android.
- PWAs are ready and safe to use today.
Then it describes the three-step programme for turning your thing into a progressive web app:
- The Manifest.
- Go HTTPS.
- The Service Worker.
Tell it, brother!
AMP is a symptom that someone, somewhere, thinks the web is failing so badly (so slow, so unresponsive) for a portion of the world that they want to take all the content and package it back up in a sterile, un-webby, branded box. That makes me so sad. PWAs, to me, are a potential treatment.
If your company is or is planning on doing business in emerging markets, architecting your web applications for performance through progressive enhancements is one easy way to drastically improve accessibility, retention, and user experience.
This article uses “progressive enhancement” and “progressive web app” interchangeably, which would be true in an ideal world. This is the first of a three part series, and it sounds like it will indeed document how to take an existing site and enhance it into a progressive web app—a strategy I much prefer to creating a separate silo that only works for a subset of devices (the app-shell model being pushed by Google).
A step-by-step guide to building progressive web apps. It covers promises, service workers, fetch, and cache, but seeing as it’s from Google, it also pushes the app-shell model.
This is a handy resource but I strongly disagree with some of the advice in the section on architectures (the same bit that gets all swoonsome for app shells):
Start by forgetting everything you know about conventional web design, and instead imagine designing a native app.
Avoid overly “web-like” design.
What a horribly limiting vision for the web! After all that talk about being progressive and responsive, we’re told to pretend we’re imitating native apps on one device type.
What’s really disgusting is the way that the Chrome team are withholding the “add to home screen” prompt from anyone who dares to make progressive web apps that are actually, y’know …webby.
Turning your existing website into a progressive web “app”—a far more appealing prospect than trying to create an entirely new app-shell architecture:
…they are an enhancement of your existing website which should take no longer than a few hours and have no negative effect on unsupported browsers.
A useful tool to help you generate a manifest file, icons, and a service worker for your progressive web
A nice straightforward account of building and testing a progressive web a… I mean, website.
I think every website from now on should use some of the Progressive Web App features. It’s even confusing to call it “Apps” as it applies to all websites and apps.
A practical guide to Progressive Web Apps for organisations who don’t know anything about Progressive Web Apps : Records Sound the Same
Sally gives a really good introduction to using service workers as a progressive enhancement.
Jason talks through the service worker strategy for his company website.
Henrik points to some crucial information that slipped under the radar at the Chrome Dev Summit—the Android OS is going to treat progressive web apps much more like regular native apps. This is kind of a big deal.
It’s a good time to go all in on the web. I can’t wait to see what the next few years bring. Personally, I feel like the web is well poised to replace the majority of apps we now get from app stores.
Excellent guidelines from GDS on providing services that work well on mobile. The watchwords are:
- responsive design,
- progressive enhancement,
- open data, and
- emerging technology (service workers, notifications, etc.).
Native and hybrid apps are rarely justified.
Progressive Web Apps versus native is the wrong question because every step on the path to a Progressive Web App makes sense on its own, irrespective of what a company does with their native apps.
Not all of your customers are going to have your app installed. For those who visit via the web, providing them with a better experience will make them happier and generate more revenue for your business.
It’s really that simple.
A nice introduction to progressive web apps. There’s a little bit of confusion about permissions—whether a site has been added to the home screen or not has no effect on the permissions granted to it (for things like push notifications)—but the wrap-up nails the advantages of using the web:
No more waiting to download an app, no more prompts for updating an app. From a developer perspective, it means we will be able to iterate a lot quicker. We don’t need to wait for app store approvals anymore, and we can deploy at our own leisure.
Another advantage that a progressive web app has over a native mobile app is that it is linkable, hence it is easier to share and, probably even more importantly, can be indexed by search engines. This makes discoverability of the app a lot better.
Alex runs through the features that a progressive web app must have, should have, and would be nice to have.
In general, installability criteria are tightening. Today’s Good-To-Haves may become part of tomorrow’s baseline. The opposite is unlikely because at least one major browser has made a strong commitment to tightening up the rules for installability.
Right now, this is in the nice-to-have category:
Mobile-friendly, not mobile-only.
Personally, I’d put that in the must-have category, and not just for progressive web apps.
Anyway, read on for some advice on testing and tooling when it comes to evaluating progressive web apps.
How Google And Others Are Plotting The Revenge Of The Web App | Fast Company | Business + Innovation
It’s always, um …”interesting” when a mainstream publication covers a topic from the web’s bikeshed. In this case, it’s progressive web apps, and—apart from the sensationalist headline—it’s actually not that bad at all.
This is a really good overview of progressive web apps:
An ideal web app is a web page that has the best aspects of both the web and native apps. It should be fast and quick to interact with, fit the device’s viewport, remain usable offline and be able to have an icon on the home screen.
At the same time, it must not sacrifice the things that make the web great, such as the ability to link deep into the app and to use URLs to enable sharing of content. Like the web, it should work well across platforms and not focus solely on mobile. It should behave just as well on a desktop computer as in other form factors, lest we risk having another era of unresponsive m.example.com websites.
The devs at The Guardian walk through the process of building a progressive web app for the Olympics. There were some gotchas with the life cycle of service workers, but the pay-off was worth it:
Once you get there though, it’s quite magical when you load the page on a phone, switch it to airplane mode, reload, and continue using the app as though nothing was wrong.