Trait Pipe 

pub trait Pipe<Input>:
    Send
    + Sync
    + 'static {
    type Output;

    // Required method
    fn transform(
        value: Input,
        ctx: &RequestContext,
    ) -> Result<Self::Output, HttpException>;
}

Pipe Transform Trait

A transformation pipe transforms input data (such as query parameters or request bodies) into a desired output type. Pipes can also perform validation as part of the transformation.

Type Parameters

• Input: The input type to transform from

Associated Types

• Output: The resulting type after transformation

Example

struct ParseIntPipe;
impl Pipe<String> for ParseIntPipe {
    type Output = i32;
    fn transform(value: String, ctx: &RequestContext) -> Result<Self::Output, HttpException> {
        value.parse().map_err(|_| HttpException::bad_request("Invalid integer"))
    }
}

Required Associated Types

type Output

Required Methods

fn transform( value: Input, ctx: &RequestContext, ) -> Result<Self::Output, HttpException>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors