Firebase Cloud Functions - Reacting to Database Events

Firebase is a serverless service that allows you to run your (mobile) app backend with zero effort.
We saw a couple of triggers in the previous videos - reacting to Database events is another useful trigger you don't want to miss though.

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• And you should of course also follow @academind_real.

See you in the videos!

[jcmargentina]

thanks a lot, please dont stop doing this kind of series (regarding any topic beasides Firebase I mean).

[apalasingh]

Damn!, I used to be so confused with the working of functions you made it sooo easy. Respect🙌🙌

[alanlal]

Was really looking for this one...nice tutorial max 👌👌...

Are you planning on making any videos based on firebase cloud messaging. ?

[juanmng]

I was expecting the creation of the new children within the function to trigger the function again (as it happened in the firestore example with the resized image). Why wasn't it triggered in this case? Thanks for the nice mini-series on Firebase cloud functions!

[dantesolorio]

Hey do you have an example but with Firestore instead of realtime database??

[robertotomas]

hey Max, a question - how do I update to some other ref entirely based on this change?

[razorgarf]

i think the procedure is different for firestore?

[nicolasmorin]

I have done the exactly the same thing as you, but I have the error : TypeError: Cannot read property 'val' of undefined. any idea ?

[siva_geddada]

hey can you make data opration using cloude functions

[elmerrparado]

Hi Sir, I notice that when I hover to the event on "exports.onDataAdded = => {" I see DataSnapshot. But in yours I think I saw DeltaSnapshot. Could this be the reason why my event.data is undefined?

[ammarmughal]

Sir... I have been following you for long time... I got enrolled in your react and react native courses on udemy... And i'm in love with your teaching that you make concepts so easy to understand...

I have a question... I want to learn some backend framework to use with react and react native... I am a begginer so please suggest me a backend framework to learn for complex backends with react and react native both...

Express or django or ruby on rails??? Which one will you suggest me for making COMPLEX web and mobile apps with react and react native???

[simamr]

well pal you should update this video cause this this code ain't working any more

[maarcin]

here are automatically generated subtitles... in dutch, not english xd

[MarsTheProgrammer]

It did nothing... the function isn't writing to the database.

[mobilitycompany]

-your functions looks pretty outdated

Kannst du Max bitte die index.js aktualisieren?

[venkateshsharma]

i am sorry to tell, but your content is outdated. There are lot of updates, without which these codes wont run. Please make new video with the updated content and delete the old videos .

[kapildeshpande]

Could you please suggest the ide for writing firebase functions notepad++ is not so supportive