Interface GraphQLRequestListener<TContext>

interface GraphQLRequestListener<TContext extends BaseContext> {
    didEncounterErrors?(
        requestContext: GraphQLRequestContextDidEncounterErrors<TContext>,
    ): Promise<void>;
    didEncounterSubsequentErrors?(
        requestContext: GraphQLRequestContextDidEncounterSubsequentErrors<
            TContext,
        >,
        errors: readonly GraphQLError[],
    ): Promise<void>;
    didResolveOperation?(
        requestContext: GraphQLRequestContextDidResolveOperation<TContext>,
    ): Promise<void>;
    didResolveSource?(
        requestContext: GraphQLRequestContextDidResolveSource<TContext>,
    ): Promise<void>;
    executionDidStart?(
        requestContext: GraphQLRequestContextExecutionDidStart<TContext>,
    ): Promise<void | GraphQLRequestExecutionListener<TContext>>;
    parsingDidStart?(
        requestContext: GraphQLRequestContextParsingDidStart<TContext>,
    ): Promise<void | GraphQLRequestListenerParsingDidEnd>;
    responseForOperation?(
        requestContext: GraphQLRequestContextResponseForOperation<TContext>,
    ): Promise<GraphQLResponse | null>;
    validationDidStart?(
        requestContext: GraphQLRequestContextValidationDidStart<TContext>,
    ): Promise<void | GraphQLRequestListenerValidationDidEnd>;
    willSendResponse?(
        requestContext: GraphQLRequestContextWillSendResponse<TContext>,
    ): Promise<void>;
    willSendSubsequentPayload?(
        requestContext: GraphQLRequestContextWillSendSubsequentPayload<
            TContext,
        >,
        payload:
            | GraphQLExperimentalFormattedSubsequentIncrementalExecutionResultAlpha2<
                ObjMap<unknown>,
                ObjMap<unknown>,
            >
            | GraphQLExperimentalFormattedSubsequentIncrementalExecutionResultAlpha9<
                ObjMap<unknown>,
                ObjMap<unknown>,
            >,
    ): Promise<void>;
}