Faster Firestore via Data Aggregation

[davidheisnam]

So if there are 1000 comments and a new comment is added, the cloud function is going to query all 1000 comments. That is 'disturbing' for me. I wish they had a built-in collection size property.

[artursponchiado]

Good video!
But I was thinking, does the firestore don't have a limit of 1 transaction/update per second? Even if I wrap all that code in a transaction, it will be limited by this 1sec update limit, right?

[pandarzzz]

Thank you for sharing this informative video! 🐋🖐🏾 I find this video very useful. I hope you are well.

[johanchouquet]

Thanks a lot Jeff! Could you prepare a video where you have to do Transaction in Cloud Functions for aggregation of a counter for example in order to prevent contention on multiple accesses on data ? It's a really common use case, and there's few docs about this on the web!

[TimeoutMegagameplays]

1:48 What would be ideal for something that would get as many reads as writes?

[murthy]

how to add new subcollection from angular ?

[basdfgwe]

Instead of reading all documents each time can you simply have a cloud function that increments a counter, and decrements based on a deletion.

[drantunes]

Use a limit(5) query in comments collection seems more simple, or no?

[KosratDAhmad-tiqy]

event.params doesn't exist from DocumentSnapshot??

[tntg]

I have a similar feature but I don't nest comments under the parent collection. Instead, I have a separate collection at the root that is called comments, and have a property called parentId.
That is because a comment can be attached to a post or event or some other object.
Then when I call a post, I also make another call to comments with the post id, order desc, and limit to 5.
But if I needed to display the number of comments it would be different

[niyongaboeric]

Hi Jeff, I
may you advise me the level of typescript I must have to start developing SPA. Thanks

[RageBasterd]

excellent content as always
my feed is full of firebase today, with all this dev summit and waht not. to bad most of it is for native mobile

[jajasaria]

i know mysql but why nosql look so hard to me. hope someone could help me.

[or.o.s.t]

How does he write in batches (not letter by letter)? I assume it's done in editing but could there be an extension for vscode/some other magic in play?

[krisnaldoHD]

Is this not as insufficient as reading all of the comments and then counting the number of objects? Or is it different when you're doing this on the server side?

[whatthefunction]

If I have 1 million documents and want to delete 500k Oldest is that one delete or 500k deletes?

[mozartzerna]

i have this error Cannot read property 'commentId' of undefined ? need help?

[zacturner]

Is this code still valid? I get a log error on the server that 'commentId' and 'postId' are trying to call on undefined ie ( 'event.params'). Any ideas?

[saffanalvy]

Hi. Can you please make this process in Flutter for Android section. I'll highly appreciate it. Thanks.

[harpymaslow]

You rock. Gotta take the pro stuff. Don't want to pay every month though. Is the 40% offer still up for the one-time purchase ? Thx man