Is there a simple way to get a list of items by a set of ids? about amplify-category-api HOT 10 OPEN

To get a set of values based on id, you should use the BatchGetItem resolver operation as outlined here https://docs.aws.amazon.com/appsync/latest/devguide/tutorial-dynamodb-batch.html. This is currently a bit tough to use when using multiple environments because you need to know the table name in the resolver and ideally would be encapsulated as a transformer such as @batchGet. We have plans to open up the CLI such that you can run custom transformers and that would be the best way to get this working in a reproducible manner.

from amplify-category-api.

@mikeparisstuff, have there been any recent developments into making this work with multiple environments?

from amplify-category-api.

+1, is there any way to do this more easily now?

from amplify-category-api.

The batchGet is actually the best shot at doing this, although you will be limited to 100 items (https://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_BatchGetItem.html). The sole problem at the moment, however, is that as far as I know, we are not able to inject any environment variables such as the table name - which is required for the BatchGetItem - into the custom resolver.

This is supposedly tracked in #408.
Maybe somebody in the near future will find some time to dig deep into it and find a way to make this work.

Other than that, I think, you can pretty much only run the expensive scan with the filter expression.

Or instead, in case you are using GraphQL, you can run the list query with a filter. This should already be a scan with the filter, depending on where you want to have your logic for building the filter.

from amplify-category-api.

Oh, #415 ist also talking about this. I don't know, what the pricing implications are, but if you really need a batchGet you can of course always lean back to a lambda for the resolver. Lambdas can be added with amplify add function and detailed configuration which other resources access is required to.

from amplify-category-api.

any updates on this?

from amplify-category-api.

any updates on this?

from amplify-category-api.

It’s 2023 already, any updates on this?

from amplify-category-api.

the future called and is asking for updates?

from amplify-category-api.

Yeah this is still needed

from amplify-category-api.