Trait TransformMiddleware 

pub trait TransformMiddleware: Send + Sync {
    // Required method
    fn transform<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        data: DataTable,
        spec: &'life1 TransformSpec,
        context: &'life2 TransformContext,
    ) -> Pin<Box<dyn Future<Output = Result<TransformResult, ChartError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait;
}

Transform middleware — processes data between fetch and render.

Required Methods

fn transform<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, data: DataTable, spec: &'life1 TransformSpec, context: &'life2 TransformContext, ) -> Pin<Box<dyn Future<Output = Result<TransformResult, ChartError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Transform input data according to the spec.

Implementors