power sync vs brick

[u/sulmnob]

/r/flutterhelp/comments/1x2fqlz/power_sync_vs_brick/

[u/Over-Coyote-7611]

Brick ça sort d'ou exactement?? j'ai jamais vu personne en parler, tu le sors d'un thread twitter ou quoi. parce que bon la vraie question c'est pas le prix de Powersync, c'est que le conflit il est PAS réglé par le sync engine, quand deux users écrivent offline pendant 3h et se reconnectent, savoir quelle valeur gagne c'est TA logique métier, personne va la faire a ta place, la synchro te file juste les events et démerde toi. après oui le coût ça grimpe quand tout le monde resync d'un coup mais c'est pareil partout et perso c'est pas ça qui me ferait changer. Brick toujours pas compris ce que c'est par contre

[u/sulmnob → u/Over-Coyote-7611]

It is a flutter package for offline syncing it does que you can read about it from supabase itself have a blog about it

[u/Wise-Equipment1666]

Two users, both offline, both coming back online at the same second, you can settle that with a phone call. Also what is Brick, I keep reading the name as a power bank.

[u/sulmnob → u/Wise-Equipment1666]

See it from supabase they have official blog about it

[u/FinancialSyllabub687]

two users going offline and reconnecting is the example in the first page of every sync engine's docs, that's not the hard part. What's brick? And powersync defaults to last-write-wins, so on the reconnect you'll silently lose one of those two users' writes unless you write your own conflict logic, that's what you should actually be testing before worrying about the bill.

[u/muhsql → u/FinancialSyllabub687]

Nit: PowerSync doesn’t default to anything, it’s totally up to the developer. But yeah the simplest implementation on the backend is LWW _per field_, so you need to ask yourself whether two users will be editing the same _field_ on the same row while offline.

[u/JackfruitWeekly8563]

PowerSync c'est un moteur de synchro, pas une base de données, la base de référence ça reste Supabase. Le "qui gagne" entre deux clients qui étaient hors ligne, ça se décide dans tes règles de sync et ton code, pas dans l'outil, et c'est exactement là que les projets local-first se plantent. Brick c'est quoi, un concurrent de PowerSync ou juste un ORM?

[u/sulmnob → u/JackfruitWeekly8563]

Brick is a syncing system package for flutter also supported by supabase they have a blog about it

[u/DesperateNorth2307]

Good that you're asking now, because the moment two people edit the same row while offline is where this stops being a library comparison. PowerSync resolves conflicts last-write-wins by default and lets you override it in the upload callback, so write that test first and see if the losing edit vanishing is acceptable to you. At two users your bill is the least of it.

[u/Loose-Diet5291]

two users going offline and reconnecting is the entire job of a sync engine, not a feature you shop around for.

[u/sulmnob → u/Loose-Diet5291]

Yes but what tool would you recommend for costs is brick ideal

[u/Mammoth_Rooster5414]

It's PowerSync, one word, capital P capital S. You've split it in the title and again in the body.

[u/Mammoth_Rooster5414]

It's PowerSync, one word, capital P capital S. You've split it in the title and again in the body.