Struct First4Redactor 

pub struct First4Redactor;

Redact all but the first 4 characters.

Useful for API keys or tokens where the prefix identifies the key type.

If the value has 4 or fewer characters, outputs at least 4 asterisks to avoid leaking information about short values.

use apollo_redaction::Redacted;
use apollo_redaction::strategy::First4Redactor;

fn first4(input: &str) -> String {
    Redacted::<_, First4Redactor>::new(input).to_string()
}

assert_eq!(first4("sk_live_abc123"), "sk_l****");
assert_eq!(first4("abc"), "****");
assert_eq!(first4("api_key_secret"), "api_****");

Trait Implementations

impl Clone for First4Redactor

fn clone(&self) -> First4Redactor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for First4Redactor

fn default() -> First4Redactor

Returns the “default value” for a type.

impl<T: AsRef<str>> RedactionStrategy<T> for First4Redactor

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.