Struct CredentialsProviderChain

pub struct CredentialsProviderChain { /* private fields */ }

Credentials provider that checks a series of inner providers

Each provider will be evaluated in order:

• If a provider returns valid Credentials they will be returned immediately. No other credential providers will be used.
• Otherwise, if a provider returns CredentialsError::CredentialsNotLoaded, the next provider will be checked.
• Finally, if a provider returns any other error condition, an error will be returned immediately.

Examples

use aws_config::meta::credentials::CredentialsProviderChain;
use aws_config::environment::credentials::EnvironmentVariableCredentialsProvider;
use aws_config::profile::ProfileFileCredentialsProvider;

let provider = CredentialsProviderChain::first_try("Environment", EnvironmentVariableCredentialsProvider::new())
    .or_else("Profile", ProfileFileCredentialsProvider::builder().build());

Implementations

impl CredentialsProviderChain

pub fn first_try( name: impl Into<Cow<'static, str>>, provider: impl ProvideCredentials + 'static, ) -> Self

Create a CredentialsProviderChain that begins by evaluating this provider

pub fn or_else( self, name: impl Into<Cow<'static, str>>, provider: impl ProvideCredentials + 'static, ) -> Self

Add a fallback provider to the credentials provider chain

pub async fn or_default_provider(self) -> Self

Available on crate feature rustls only.

Add a fallback to the default provider chain

pub async fn default_provider() -> Self

Available on crate feature rustls only.

Creates a credential provider chain that starts with the default provider

Trait Implementations

impl Debug for CredentialsProviderChain

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

Formats the value using the given formatter.

impl ProvideCredentials for CredentialsProviderChain

fn provide_credentials<'a>(&'a self) -> ProvideCredentials<'_>

where Self: 'a,

Returns a future that provides credentials.

fn fallback_on_interrupt(&self) -> Option<Credentials>

Returns fallback credentials.