Tag Archives: Angular

AngularZone Sept 2016 Meetup Review

I’ve got to be honest, when this meetup’s talks were announced I honestly didn’t know anything about GraphQL – in fact the only mention of it I’d seen (or taken notice of) was this one;

And with this in mind, and the fact the last AngularZone meet was so good, I was more than eager to make sure I went along… and of course it gave me a chance to sport my new MobileCaddy tee, too.

beta-tee

As well as these physical meets, Gerard has been putting on web based “JavaScript – Ask me Anything” sessions too, though I have yet to partake in those.

Now, I have some thoughts about the meetup and venue as a whole, but for now let’s jump straight into the talks.

Progressive Web Apps in the Real World – Dean Hume

PWAs are creating a lot of noise at the mo – and rightly so – and Dean “Deano” Hume was here to give us the latest lowdown on them, and talk about how their features can be used in the real world.

PWAs are built using an emerging set of web standards, and essentially offer web developers the tools to bring native-esq experiences to web sites and apps. Such capabilities include Push Notifications, Geo-location access and other hardware APIs including bluetooth and NFC.

Dean Hume presenting PWAs at AngularZone

Part of the awesome-sauce that powers PWAs are Service Workers. These are also being pumped highly in the web dev world, and they enable support for many cool enrichments to standard “web sites” as well “web apps” (and no, I don’t know what the difference really is, or even if it’s important). I’ve seen many talks on Service Workers and on the whole they’ve been very good, and normally have covered different uses, approaches, and features. But one thing they all include is a statement like “Nope, sorry, Safari doesn’t support them”.

Service Workers provide a dev with the ability to intercept network requests before they leave the browser, and this can be used to provide offline handling, low-data requests and probably plenty of other use cases that haven’t yet been thought of. Speaking of which, Dean covered a scenario using Promise.race in a Service Worker that provided an improved experience for when a third party library failed to load, and meant that the page was able to load much more quickly – very cool.

Dean showed us a few other PWA features, including;

  • Add to home-screen
  • Push Notifications
  • No-connectivity handling – being able to give the user at least some basic information offline.
  • Handling Chrome’s Data Saver.

Along with the great demos and info, Dean also supplied an incredible amount of links to online demos and resources… so check out his slides for all the details.

JavaScript Jeopardy – Tracy Lee

Now, I won’t claim to understand what happened next. But it was fun, so I’m just gonna leave this picture here and you can make of it what you will.

Angular Jeopardy - WTF

Following on from this, erm… experience… Tracy and Gerard went on to tell us about ngCruise. This is a new Angular conference with a difference. Yes, you’ve guessed it, it’ll take place on a cruiseship. The website should be launching this week but the plan is for the conference/cruise to commence by bobbing out of Florida in May 2017, and will comprise of a few days of talks, programming and fun. Tracy is hoping it’ll be a few hundred USD per day and should include talks, food and of course accommodation (with a difference). CFPs should open soon.

Angular Connect – Peter Bacon Darwin

Peter and Gerard gave us a nice little fireside-chat type thing, discussing the upcoming Angular Connect conference (27th/28th Sept). They mentioned how they were updating the format slightly, from last years conf, to try to emphasise some of the more interactive sessions. I can only imagine that the conference is going to be ace… as I’ve once again had to bail on getting a ticket.

Angular meets GraphQL – Uri Goldshtein

Closing us off was Uri Goldshtein, who had literally only just flown into London. Uri is part of the Apollo team and was hear to give is an introduction to GraphQL, and although his talk title mentioned Angular, it was mostly a generic intro. This was fine with me as I had virtually no idea about GraphQL, whatsoever.

Now I won’t try to come across as a GraphQL expert following the talk, in fact if anything I have more questions now than before… so as well as writing down what I think I grasped from the evening, I’ll also suggest that you take a look at the GraphQL website for yourself.

But anyhoo, GraphQL was born out of Facebook, late 2011, at around the time Mark Zuckerburg dissed web tech for mobile, and went all native on us. It is designed to be a “Query language over your existing data”. It can be used to provide a middleware and protect your clients from evolving backend APIs and updates. It’s also type-based, and should allow for absolute understanding between what a client asks for, and what it receives. Part of this middleware behaviour includes splitting single request out to multiple backends, and bundling the responses to each up into a single response for the calling client. This kind of architecture can mean drastically simplified client code… and that’s definitely a good thing in my book.

Uri demoed Instagraph, built by Kamil Kisiela, and showed us a very neat GraphQL editor/runner called Graphiql. During the demo Uri spoke about how the use of GraphQL allowed for “optimistic UIs”. This is an approach where UIs update as soon as an action, such as liking an Instagram photo, is invoked, and that actually these changes take place before any round-trip to the server/backend is made. This approach is one that we automatically use at MobileCaddy, though we tend to include this under the Offline First banner, but it’s nice to know this specific UI handling has it’s own name too.

Users of GraphQL, other than Facebook obviously, include Pinterest, Github and Shopify.

Despite Uri being a really passionate and captivating speaker, I’m not entirely sure I’ve “got” GraphQL yet – I don’t know whether it’s available simply through client side and server side libraries, or what transactional performance overhead, if any, comes into play. I would love the chance to see him and again and have a good chat about it all. With this in mind I think I’ll do some digging into whether or not I could sit GraphQL in front of Salesforce’s SOQL. So why not go out and start playing.

Wrap Up

In all this was another excellent meetup, and Gerard deserves high praise for organising such great talks and food (burritos) and drink. The inclusion of prize draws (FREE TICKET to ANGULAR CONNECT) is a really good touch. Thanks to go to eSynergySolutions for sponsorship and assistance.

Sadly, turn-out was relatively low. I counted less than 50 attendees, which is a shame as well over 100 had RSVP’d “Yes”. I found that there was little chat among attendees, and I also noticed this at the previous meetup. Whether or not it’s due to the size of the venue, or the fact that folk were sitting in the hall before and between talks, rather than around the breakout area, I’m not sure. At other meetups I attend, these “before and after chats” are one of the really valuable and attractive things. Maybe next time the hall can be “closed” whilst talks are not on, and hopefully they’ll be a deliberate post-talks-chat arrangement too?

Regardless of the above I definitely recommend coming along to these AngularZone meets if you’re in and around London and have interest in anything JavaScript, not just Angular.

Until next time… oh and please be in touch if you want to sponsor me to attend ngCruise 😉

AngularZone July 2016 Meetup Review

I hadn’t been to any meetups in quite some time, but this inaugural meetup of the new AngularZone community had a lot of draw… Service Workers, D3, prizes, and more.

The meetup was organised by Gerard Sans, who has a history of speaking and organising meetups. It was held in the large hall of the Skills Matter CodeNode venue, which is a perfect venue for a meetup of a decent size.

As it was the first meetup for AngularZone, Gerard gave us a brief intro to what his view was for it. His idea is that physical meetups will take place once every two months, and have topics on web tech in general, and in particular Angular. He’d like to see talks, and a community, driven by passion. As well as the meetups and obvious greatness of tech talks he would like to see a community contribution program come into affect, where folk (including himself and Todd Motto – that guy gets around, right) can give advice as seasoned speakers and bloggers. It sounds not to far removed from his previous Angular Labs idea, though to be honest I didn’t get involved in that, so this is purely guesswork.

But anyhoo… on to the talks

Service Workers – Phil Nash

Up first was Phil Nash talking us through Service Workers. Now these are not overly new, but still very much in the early days of adoption. If you are new to Service Workers though, you can start by thinking of them an intelligent way to support offline behaviour for your web sites and apps. They’re the successor to the painful-to-understand-implement-manage app cache tech and have been greatly pushed with the current rise of the PWA (Progressive Web App).

We were, of course, shown the awesomeness that is the trailer for Service Worker, and I felt sorry for AppCache, so I put one together. I could apologise for the distracting gif, but I won’t, and I still pronounce it Gif, not Jif, deal with it.

AppCache, The Trailer
AppCache, The Trailer

At the time of wrting, Service Workers are available in the latest builds of Chrome, Firefox and Opera, and are known to be being actively worked on in Edge… and in the words of Phil, “who knows about Safari”.

We were shown some demos that Phil had been playing on thath utilised the Twillio API. His demos used various features exposed through Service Workers (offline, notifications, background sync, etc). Service Worker is a very powerful browser feature, and one I hope that will soon be adopted so I can use it in the hybrid apps we’re building at MobileCaddy.

‘Service Workers, turning “online by default” to “offline first”‘
– Phil Nash, 2016

One of the key features I see available in Service Workers over AppCache is the ability to programatically blat assets from the cache, and I can not wait to use it and say good ridance to AppCache.

Phil’s talk was really interesting and very well presented. His passion and knowledge were obvious. If you’re after his slides, they can be found here.

Using D3 with Angular2 – Ændrew Rininsland

Ændrew is a journalist/data wrangler at the FT and set off to take us through using (the bloomin’ black-magical D3.js) in Angular2 projects.

His talk started off with some comments on TypeScript and how having typed languages should catch silly bugs earlier on in a project’s lifecycle (though he also mentioned a blog post that argues that there isn’t any factual proof of this). Something that is hard to argue with about TypeScript though is the benefits of it’s self-documenting characteristic, which can only be a good thing.

“Angular devs are cooler than React devs… Just sayin'”
– Ændrew Rininsland, 2016

Before we got to any real D3, Ændrew also gave a few personal observations of ng2;

  • On a blank ng2 project – Never has he had so much code, over so many files, doing so very little
  • ng2 is really fast

Even being fairly new to ng2 myself, these points certainly ring true with me.

After much config hacking and setup, we  finally got around to seeing some D3 code, which by comparison was relatively short and straight-forward – in a “my mind can’t take in any more info” kind of way. I’m not sure if I’ll ever get over how magical D3.js is and how much sorcery their implementors use to bend it into shape, but the output of beautiful data visualisations always blows my mind.

Closing

Gerard had a few prizes to be won, which is a nice touch for a new meetup, so kudos to him. I even won a year’s JetBrains license… so even better.

Talking of free-stuff now’s a good time to thank Gerard for putting on a really interesting meet and to the sponsors (skills matter, eSynergySolutions, poncho8, JetBrains, Google Developers) for covering the venue, food, drinks and prizes.

Talks were recorded and should be up on the skills matter site in the near future.