Feb 2020 GraphQL Meetup Notes

NodeJS dataloader library for batching DB queries, how to use dataloaders
Can Apollo generate warnings on deprecated fields? Maybe, need to learn more about schema directives.
One schema, one folder. No shared schema between different apps, choose isolation over DRY
- What can be shared? Custom scalar types, an error type, a currency object
Separate errors into user errors from public errors (clarify the difference)
Testing graphql? Prefer integration tests to unit tests to see if your actual relationships are working. Mocking too many things gets you incorrect results.
Soo many libraries!
- @Shopify/react-graphql
- graphql-mini-transforms has smaller output than graphql-tag to keep bundles smaller
- graphql-fixtures helps generate mock data based on schemas to help your integration tests
- @shopify/graphql-testing can help you check queries/mutations have run in integration tests