Struct InstanceMetadata 

pub struct InstanceMetadata { /* private fields */ }

The credential of the service account the instance runs as, from the instance’s metadata service: a session is opened for six hours, and each access token, which lives five minutes, requested with it a minute before the last one expires. The requests never go through a proxy, which the metadata service refuses, and one it can’t answer right now (503) is sent again twice.

Implementations

impl InstanceMetadata

pub fn new() -> Self

The metadata service at METADATA_ENDPOINT.

pub fn with_endpoint(self, url: impl Into<String>) -> Self

Asks the metadata service at url instead of METADATA_ENDPOINT.

pub fn with_http_client(self, http: Client) -> Self

Sends the requests with http, as it is configured, instead of a client without a proxy that gives up connecting after a second. Opening a session is bounded by two seconds either way, and requesting a credential by five.

Trait Implementations

impl Credentials for InstanceMetadata

fn token(&self) -> TokenFuture<'_>

A valid access token.

impl Debug for InstanceMetadata

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

Formats the value using the given formatter.

impl Default for InstanceMetadata

fn default() -> Self

Returns the “default value” for a type.