Trait ContainerType

pub trait ContainerType: OutputType {
    // Required method
    fn resolve_field(
        &self,
        ctx: &Context<'_>,
    ) -> impl Future<Output = ServerResult<Option<Value>>> + Send;

    // Provided methods
    fn collect_all_fields<'a>(
        &'a self,
        ctx: &ContextSelectionSet<'a>,
        fields: &mut Fields<'a>,
    ) -> ServerResult<()>
       where Self: Send + Sync { ... }
    fn find_entity(
        &self,
        _: &Context<'_>,
        _params: &Value,
    ) -> impl Future<Output = ServerResult<Option<Value>>> + Send { ... }
}

Represents a GraphQL container object.

This helper trait allows the type to call resolve_container on itself in its OutputType::resolve implementation.

Required Methods

fn resolve_field( &self, ctx: &Context<'_>, ) -> impl Future<Output = ServerResult<Option<Value>>> + Send

Resolves a field value and outputs it as a json value async_graphql::Value.

If the field was not found returns None.

Provided Methods

fn collect_all_fields<'a>( &'a self, ctx: &ContextSelectionSet<'a>, fields: &mut Fields<'a>, ) -> ServerResult<()>

where Self: Send + Sync,

Collect all the fields of the container that are queried in the selection set.

Objects do not have to override this, but interfaces and unions must call it on their internal type.

fn find_entity( &self, _: &Context<'_>, _params: &Value, ) -> impl Future<Output = ServerResult<Option<Value>>> + Send

Find the GraphQL entity with the given name from the parameter.

Objects should override this in case they are the query root.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl<T: ContainerType + ?Sized> ContainerType for &T

async fn resolve_field(&self, ctx: &Context<'_>) -> ServerResult<Option<Value>>

async fn find_entity( &self, ctx: &Context<'_>, params: &Value, ) -> ServerResult<Option<Value>>

impl<T: ContainerType + ?Sized> ContainerType for Box<T>

async fn resolve_field(&self, ctx: &Context<'_>) -> ServerResult<Option<Value>>

async fn find_entity( &self, ctx: &Context<'_>, params: &Value, ) -> ServerResult<Option<Value>>

impl<T: ContainerType + ?Sized> ContainerType for Arc<T>

async fn resolve_field(&self, ctx: &Context<'_>) -> ServerResult<Option<Value>>

async fn find_entity( &self, ctx: &Context<'_>, params: &Value, ) -> ServerResult<Option<Value>>

impl<T: ContainerType, E: Into<Error> + Send + Sync + Clone> ContainerType for Result<T, E>

async fn resolve_field(&self, ctx: &Context<'_>) -> ServerResult<Option<Value>>

async fn find_entity( &self, ctx: &Context<'_>, params: &Value, ) -> ServerResult<Option<Value>>

Implementors

impl ContainerType for EmptyFields

impl ContainerType for PageInfo

impl ContainerType for EmptyMutation

impl<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName> ContainerType for Connection<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName, DisableNodesField>

where Cursor: CursorType + Send + Sync, Node: OutputType, ConnectionFields: ObjectType, EdgeFields: ObjectType, Name: ConnectionNameType, EdgeName: EdgeNameType,

impl<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName> ContainerType for Connection<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName, EnableNodesField>

where Cursor: CursorType + Send + Sync, Node: OutputType, ConnectionFields: ObjectType, EdgeFields: ObjectType, Name: ConnectionNameType, EdgeName: EdgeNameType,

impl<Cursor, Node, EdgeFields, Name> ContainerType for Edge<Cursor, Node, EdgeFields, Name>

where Cursor: CursorType + Send + Sync, Node: OutputType, EdgeFields: ObjectType, Name: EdgeNameType,