Struct Credentials 

pub struct Credentials { /* private fields */ }

A username and password that may be replaced while the process runs.

Cheap to clone — every clone shares one set of credentials, which is the point: the task that fetches a new one and the pool that opens connections with it are looking at the same value.

Implementations

impl Credentials

pub fn new(user: impl Into<String>, password: impl Into<String>) -> Credentials

pub fn current(&self) -> (String, String)

The credentials to open the next connection with.

pub fn user(&self) -> String

pub fn generation(&self) -> u64

Which generation the current credentials belong to.

pub fn rotate( &self, user: impl Into<String>, password: impl Into<String>, ) -> u64

Replace them, and retire every connection opened with the old ones.

Returns the new generation. Rotating to the same values still counts as a rotation: a caller doing that is saying the old connections are no longer wanted, and second-guessing it here would silently keep them.

pub fn is_current(&self, generation: u64) -> bool

Whether a connection opened under generation is still current.

Trait Implementations

impl Clone for Credentials

fn clone(&self) -> Credentials

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Credentials

Names the user, never the password.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.