Merge multiple Juniper object definitions into a single object type.
This is a fork of the original juniper-compose crate that has been updated to support Juniper 0.16. The original crate was designed for earlier versions of Juniper, and this fork includes the necessary modifications to ensure compatibility with Juniper 0.16's API changes.
Add this to your Cargo.toml:
[dependencies]
juniper_compose_ng = "0.16.2"You are building a GraphQL server using Juniper. At some point you realize that you have gigantic Query and Mutation types:
#[derive(Default)]
struct Query;
#[juniper::graphql_object]
impl Query {
async fn user(ctx: &Context, id: Uuid) -> User {
// ...
}
async fn users(ctx: &Context) -> Vec<User> {
// ...
}
async fn task(ctx: &Context, id: Uuid) -> Task {
// ...
}
async fn tasks(ctx: &Context) -> Vec<Task> {
// ...
}
// ...many more
}You would like to split it up into multiple domain-specific files, and have e.g. all User queries in one file and all Task queries in the other. With current Juniper API, it is very hard to do, but this crate can help you.
#[derive(Default)]
struct UserQueries;
#[composable_object]
#[juniper::graphql_object]
impl UserQueries {
async fn user(ctx: &Context, id: Uuid) -> User {
// ...
}
async fn users(ctx: &Context) -> Vec<User> {
// ...
}
}
#[derive(Default)]
struct TaskQueries;
#[composable_object]
#[juniper::graphql_object]
impl TaskQueries {
async fn task(ctx: &Context, id: Uuid) -> Task {
// ...
}
async fn tasks(ctx: &Context) -> Vec<Task> {
// ...
}
}
composite_object!(Query(UserQueries, TaskQueries));Custom contexts are supported:
composite_object!(Query<Context = MyCustomContext>(UserQueries, TaskQueries));Visibility specifier for generated type is supported:
composite_object!(pub(crate) Query<Context = MyCustomContext>(UserQueries, TaskQueries));Custom scalars are currently not supported, but will be added if requested.
This crate is a fork of the original juniper-compose by Kit Isaev, updated to support Juniper 0.16. We thank the original author for their excellent work.