Write Production Quality Cloud Functions (Firebase Dev Summit 2017)

Some apps really do need a backend. With Cloud Functions your code automatically runs in response to events and scales up and down to meet demand. Unfortunately, Cloud Functions can't write your code for you (yet). And writing that code is error prone. In this video with Thomas Bouldin and Lauren Long, learn how to improve your development process and prevent bugs before your code gets into production by writing functions in TypeScript, using our new tools for unit testing, and experimenting with your functions locally using the emulator.
Check out the rest of the Firebase Dev Summit videos here: goo.gl/bczYSW
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[@povic2057]

#AskFirebase Do you have recommendations on good tutorial on how to unit test functions locally

[@ben6]

That logic at about 16:00 sounds like a very quick way to go out of business with cloud costs.

[@federicomorenorodriguezcha7592]

#AskFirebase Hi! I tried to use async functions but does not compile base on that firebase cloud has Node version 6.x.. do you know when will be available Node version 8 in Google Functions?

[@ThomasBouldin]

Version 8 will not come until after GA. This is why I demonstrated using TypeScript, which will let you use await/async early.

[@AmarildoK]

When creating adding firebase functions to your project you should have an options to use to buildin process typescript => javascript

[@merijnvanwouden]

I know I shouldn't ask this question here but I have been trying to get an answer from Google Cloud staff for months (literally) so this is my desperate attempt here: What is the ETA for Cloud Functions to be available in EU regions?

[@qm3ster]

There's eur3 multiregion now.

[@bagoquarks]

FYI, 'Alone Together' is a 1970 album by Dave Mason. It's best known single is 'Only You Know and I Know'.

[@catunfit]

when is async and await coming? i am currently using co...

[@catunfit]

sorry I just saw Node 8 can be specified as the engine, so async and await should be there...

[@mika2666]

You're in luck, node 8 just got LTS and all the features we've been waiting for are finally here :D except ES6 modules :(((((

[@funkmafia05]

yes, but node 8.x not yet on servers - see here cloud.google.com/functions/docs/writing/

[@chanlito4896]

it's in experimental stage, u can use a flag

[@kamilwojtczyk2957]

What's the flag? I can't find it anywhere.

[@HolyDropBear]

Where can I get one of those blue Firebase shirts? :P

[@thomasbouldin4931]

careers.google.com/jobs ^_~

[@jguillendev]

hello I love the ease of firebase functions, but I would like to be able to program anywhere I am and I have not found how to do it. They should have how to do this from an APP, or from the web. thus nothing would program the code, I give it to save and it should be published. Thank you

[@vangrails]

Async and Await in node.js. Does it work the same as in C#?

[@vladislavsabenin1254]

Definitely not

[@deanjackson833]

If you organize your functions in folders like: users/addUser.js, users/renameUser.js, orders/addOrder.js, orders/search.js, can the URLs be made to include the folder name like: mybaseurl/users/addUser, mybaseurl/orders/search ?

[@the_tech_tube]

Quality Presentation 👍

[@planetmall2]

Thank you for this presentation.

[@qm3ster]

const complex = () => task1() .then(task2) .then(task3) .then(errorHandler) Is technically shorter than async function complex() { try { const result1 = await task1(); const result2 = await task2(result1); return task3(result2); } catch (err) { return errorHandler(err); } } All in all, `try/catch` of async is really dropping the ball. Can't wait for JavaScript to adopt a Result datatype.

[@Babakb]

The code at 13:05 mutates state and could mask bugs in more complex situations. Perhaps the observable pattern is a healthier approach (i.e., expand using RxJs). stackoverflow.com/questions/44097231/rxjs-while-loop-for-paging

[@razorgarf]

I give you a second to take a photo of that D:

[@d4lep0ro]

Who keeps their backend code in one file, pelase provide real world examples

[@shawnlee6775]

I cant even use TypeScript...

[@sreid70]

I'm not a fan of typescript. Tried using it with Angular 2-4 and became frustrated and went back to vanilla JS. Much happier and get more done.

[@chanlito4896]

Lol the problem is not typescript, it's Angular. Trust me

[@pierojoss]

@sreid70 TS it's easy and powerful, and overall it's the future of the most popular frameworks in the market. Please consider to learn it, it's the best for your future.

[@bangonkali]

typescript is just an extension of the es6 or superset of es6, if you write es6 then that is valid typescript code since it is superset. typescript adds types and other checking. additionally it has a compiler which can compile back to es4,5, or 6. another alternative is flowjs which is compiled via babel and doesn't do anything fancy except being a typechecker. i think feature wise typescript as a language extension and the tooling around it provides more. but once again, vanilla js is legal ts code. angular is a whole another thing which is a ui framework to build SPA and other stuff with. people who use flowjs usually use react because both come from fb. your statement "went back to vanilla JS" essentially qualifies as simliar to writing TS since vanilla js is a subset of ts. which leads me to believe your issue maybe with angular.

[@chadjones4255]

Yay Typescript, so all the code examples you find will not actually work. That was one of the great advantages of Coffeescript if I remember ancient history correctly. But this time it was invented by MS so surely it will not be a technological dead end. ;)

[@chanlito4896]

Hmm firebase team promoting console.log? 😄

[@ThomasBouldin]

Among other tools that we've demonstrated in the past. E.g. errors with stacks are automatically aggregated into Stackdriver Error Reporting where you can see incidence rate and even set alerts with stackdriver alerting.

[@hemanth6951]

google do not know presentation skills,like or dislike