Deploy a themeable, customizable, full stack and cross-platform mobile app for your next event in minutes.
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@dabit3 Nader, just curious if this is expected behavior with the AWS GraphQL endpoint.
I get zero results, but
nextTokenis populated. When I query that, I get my result(s).Seems like the expected behavior should be to filter, then run limit. It’s running limit on the records, then filtering.
So I think the issue here is that, by default, this query will perform a
scanoperation and then afilteron the scanned items. By default, I think the number that it returns is 10, so if your item is not contained in the first 10 items it will return zero and a next token.You could instead update the operation to be a
queryvs ascan(by using the@keydirective), or you could increase the limit.This is more of a quirk / implementation detail of DynamoDB than anything else.
The
scanoperation will scan every item in a db (or the firstnitems if we set a limit, in our case 1) and then perform a filter on those results. By contrast, aquerywill only query on a set key, so in general for larger data sets a query is the way to go.aws-amplify.github.io/docs/cli-too...
Yeah, it seems like a DynamoDB quirk. I only had about 4 records and
limit: 1to test filtering.I never jumped on the NoSQL bandwagon. Give me SQL anyday. I find most data, for 99% of applications out there, is relational. Not to mention most won't run up against scaling issues with just using Postgres.
Have you thought about doing this same Amplify GraphQL example with Amazon Aurora Serverless? I think it'd be great to compare them side-by-side.
One of my favorite videos that shows what NoSQL can do is this one: youtube.com/watch?v=HaEPXoXVf2k , it also goes into theory around by NoSQL has become so popular. We're definitely working on more support as well for relational databases, you'll see more from us later this year.
Spot on Nader.
🥇🥇🥇
I might need something similar for our dev conference in Haiti 🇭🇹 this November. That will be a very good start
Awesome, let me know if I can help you in any way!
Nice work @Nader. ❤️💣🤯🔥💥
Just out of curiosity, if I don't use expo, does Amplify have a way/tool to release the react-native bundle to the app store?
Hi Steve. No, Amplify does not offer this directly, but you should be able to bundle to .ipa or .apk directly from either Xcode (iOS) or from the command line (Android)
This is an awesome App. Thanks Nadder. I am having one strange problem.
has anyone had problems displaying images? I can not get the logo or speaker Avatar to display.