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Improve GraphQL server performance with knex-graphql-utils
I've created a tiny library which improves performance for GraphQL + Knex.
tl;dr
Before
After
- Filter
select
columns based on a query from clients - Load relations without N+1 problem (pagination available!)
Currently only PostgreSQL is supported, but I'll support other RDBMS too if needed.
Motivation
Creating a GraphQL service with a Relational Database is a hard thing. We should take care of:
- Performance for querying relations. N+1 problem will happen if you don't use Dataloader.
-
select *
make your server slow, but hard to filter columns based on requests. - Pagination. Dataloader pattern is hard to implement pagination without a hacky
union
or window functions.knex-graphql-utils
usesrow_number()
window function to do it.
As a developer, I noticed that I'm doing the same thing again and again - so I convert my work into a library.
The syntax is like this:
Please try it! Any feedback is welcome.
Discussion