Trait GraphQLHandler 

pub trait GraphQLHandler: Send + Sync {
    // Provided methods
    fn on_operation<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _ctx: &'life1 GraphQLContext,
    ) -> Pin<Box<dyn Future<Output = HandlerResult<Option<Response>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
    fn after_operation<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _ctx: &'life1 GraphQLContext,
        response: Response,
    ) -> Pin<Box<dyn Future<Output = HandlerResult<Response>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
    fn on_error<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _ctx: &'life1 GraphQLContext,
        error: String,
    ) -> Pin<Box<dyn Future<Output = HandlerResult<Response>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
    fn handles_operation(
        &self,
        operation_name: Option<&str>,
        _operation_type: &OperationType,
    ) -> bool { ... }
    fn priority(&self) -> i32 { ... }
}

Trait for handling GraphQL operations

Provided Methods

fn on_operation<'life0, 'life1, 'async_trait>( &'life0 self, _ctx: &'life1 GraphQLContext, ) -> Pin<Box<dyn Future<Output = HandlerResult<Option<Response>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Called before query/mutation execution Return None to proceed with default resolution, Some(Response) to override

fn after_operation<'life0, 'life1, 'async_trait>( &'life0 self, _ctx: &'life1 GraphQLContext, response: Response, ) -> Pin<Box<dyn Future<Output = HandlerResult<Response>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Called after successful query/mutation execution Allows modification of the response

fn on_error<'life0, 'life1, 'async_trait>( &'life0 self, _ctx: &'life1 GraphQLContext, error: String, ) -> Pin<Box<dyn Future<Output = HandlerResult<Response>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Called when an error occurs

fn handles_operation( &self, operation_name: Option<&str>, _operation_type: &OperationType, ) -> bool

Check if this handler should handle the given operation

fn priority(&self) -> i32

Priority of this handler (higher = executes first)

Implementors