async_graphql/
custom_directive.rs

1use std::borrow::Cow;
2
3use crate::{
4    extensions::ResolveFut, parser::types::Directive, registry::Registry, Context,
5    ContextDirective, ServerResult, Value,
6};
7
8#[doc(hidden)]
9pub trait CustomDirectiveFactory: Send + Sync + 'static {
10    fn name(&self) -> Cow<'static, str>;
11
12    fn register(&self, registry: &mut Registry);
13
14    fn create(
15        &self,
16        ctx: &ContextDirective<'_>,
17        directive: &Directive,
18    ) -> ServerResult<Box<dyn CustomDirective>>;
19}
20
21#[doc(hidden)]
22// minimal amount required to register directive into registry
23pub trait TypeDirective {
24    fn name(&self) -> Cow<'static, str>;
25
26    fn register(&self, registry: &mut Registry);
27}
28
29/// Represents a custom directive.
30#[async_trait::async_trait]
31#[allow(unused_variables)]
32pub trait CustomDirective: Sync + Send + 'static {
33    /// Called at resolve field.
34    async fn resolve_field(
35        &self,
36        ctx: &Context<'_>,
37        resolve: ResolveFut<'_>,
38    ) -> ServerResult<Option<Value>> {
39        resolve.await
40    }
41}
async_graphql/custom_directive.rs

async_graphql/
custom_directive.rs
