Struct aws_config::default_provider::credentials::DefaultCredentialsChain

pub struct DefaultCredentialsChain { /* private fields */ }

Default AWS Credential Provider Chain

Resolution order:

1. Environment variables: EnvironmentVariableCredentialsProvider
2. Shared config (~/.aws/config, ~/.aws/credentials): SharedConfigCredentialsProvider
3. Web Identity Tokens
4. ECS (IAM Roles for Tasks) & General HTTP credentials: ecs
5. EC2 IMDSv2

The outer provider is wrapped in a refreshing cache.

More providers are a work in progress.

Examples

Create a default chain with a custom region:

use aws_types::region::Region;
use aws_config::default_provider::credentials::DefaultCredentialsChain;
let credentials_provider = DefaultCredentialsChain::builder()
    .region(Region::new("us-west-1"))
    .build();

Create a default chain with no overrides:

use aws_config::default_provider::credentials::DefaultCredentialsChain;
let credentials_provider = DefaultCredentialsChain::builder().build();

Create a default chain that uses a different profile:

use aws_config::default_provider::credentials::DefaultCredentialsChain;
let credentials_provider = DefaultCredentialsChain::builder()
    .profile_name("otherprofile")
    .build();

Implementations

impl DefaultCredentialsChain

pub fn builder() -> Builder

Builder for DefaultCredentialsChain

Trait Implementations

impl Debug for DefaultCredentialsChain

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

Formats the value using the given formatter.

impl ProvideCredentials for DefaultCredentialsChain

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

where Self: 'a,

Returns a future that provides credentials.

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

Returns fallback credentials.