Use async/await with TypeScript in Cloud Functions for Firebase - Firecasts

Using async/await syntax with Cloud Functions for Firebase can make your TypeScript and ECMAScript 2017 code easier to read and write. In this part 2 video, @CodingDoug shows how to convert some functions that use promises to use async/await instead. Does it look better to you? Let us know in the comments!

[codinginflow]

This video solves exactly the questions I was having lol. Great work

[yogenp]

3.47 onwards is what I was looking for. Thank you, Doug.

[sveinsoermo]

Very, very good video series. HIGH QUALITY, right on target!

[cindysi]

Wow. Nicely explained. I finally get it now. I like the refactoring part. Thank you.

[SamBecker]

This is a great video. And an area where TypeScript adds a lot of clarity to the development process.

[eduardooviedoblanco]

How do you deal with the "snapshot.forEach" as specified in the documentation, because I am having problems with async await using that.

[noamgonen]

Thanks for the video Doug. Good to see you're back from your Google Tel-Aviv improvised office, although your view there was better looking than the green screen backdrop :-)

[rammalvarez]

That's super nice, the code looks a lot cleaner, thanks for the tip!

[jlb]

When I do this I get red underlines in the editor when trying to access anything after snapshot.data(). I get an "Object is possibly 'undefined'" error. What am I doing wrong? Code and data structure is identical.

[danvilela]

Loving these series! I had some doubts with Promises, now i know what i needed :) Thanks!

[saramandavid]

It's really clear and useful. Save a lot of time for beginners like me.

[YousefKabbara]

#Error


- "Object is possibly 'undefined'.ts(2532)" error on line 9
- "Variable 'results' implicitly has type 'any[]' in some locations where its type cannot be determined.ts(7034)" error on line 17
and
- "Variable 'results' implicitly has an 'any[]' type.ts(7005)" on line 23
Anyone have the same problem or can help?

[KyoKurosagi]

How is the javascript? cause currently I can't use async/await for javascript in cloud functions.

[lgopt]

Once again, absolutely brilliant! And very appreciative that you delivered on the time you committed. Admirable!!
But i still have 1 nagging problem. Inside my forEach there are processes where I need to use AWAIT. So, I made the forEach async. But it doesn't run more than once. Some say use "await Promise.all' with snapshot.map(...).
What's your best advice on handling a snapshot.forEach loop when there are AWAIT promises in every iteration?

[sediavindivoh]

Variable 'promises' implicitly has type 'any[]' in some locations where its type cannot be determined, and areaSnapshot 'Object is possibly 'undefined'. How do I fix these errors?

[wwgg]

Why would one use async/await vs then().catch()? Isn't the latter easier to test?

[akXIII]

Just wanted to say thanks! This was a very helpful series

[rajarams]

video tips using async/await for realtime database transaction also for firestore runTransaction in cloud functions.

[JOKBO]

Awesome video! Exactly what I needed today to refactor some code. Keep these up

[raghav]

Hi Doug, some of the functions samples (like the audio ffmpeg conversion) still has the .js examples. Are there any plans to revamp the github examples to reflect .ts? Many thanks.