Struct FixedRedactor 

pub struct FixedRedactor<const N: usize>;

Redact all but the first N characters.

Shows the first N characters, then always shows exactly 4 asterisks to prevent leaking the length of the redacted portion.

If the value has N or fewer characters, outputs just 4 asterisks.

This is a configurable version - for common cases, prefer First4Redactor.

use apollo_redaction::Redacted;
use apollo_redaction::strategy::FixedRedactor;

fn fixed<const N: usize>(input: &str) -> String {
    Redacted::<_, FixedRedactor<N>>::new(input).to_string()
}

assert_eq!(fixed::<4>("password123"), "pass****");
assert_eq!(fixed::<4>("test1"), "test****");
assert_eq!(fixed::<4>("abc"), "****"); // short input = 4 asterisks

Trait Implementations

impl<const N: usize> Clone for FixedRedactor<N>

fn clone(&self) -> FixedRedactor<N>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<const N: usize> Default for FixedRedactor<N>

fn default() -> Self

Returns the “default value” for a type.

impl<T: AsRef<str>, const N: usize> RedactionStrategy<T> for FixedRedactor<N>

fn display(&self, value: &T, f: &mut Formatter<'_>) -> Result

How to redact the value for the Display ({}) implementation.

fn debug(&self, value: &T, f: &mut Formatter<'_>) -> Result

How to redact the value for the Debug ({:?}) implementation. By default, this delegates to RedactionStrategy::display.