Struct aws_config::ConfigLoader

pub struct ConfigLoader { /* fields omitted */ }

Load a cross-service Config from the environment

This builder supports overriding individual components of the generated config. Overriding a component will skip the standard resolution chain from for that component. For example, if you override the region provider, even if that provider returns None, the default region provider chain will not be used.

Implementations

impl ConfigLoader

pub fn region(self, region: impl ProvideRegion + 'static) -> Self

Override the region used to build Config.

Examples

use aws_types::region::Region;
let config = aws_config::from_env()
    .region(Region::new("us-east-1"))
    .load().await;

pub fn retry_config(self, retry_config: RetryConfig) -> Self

Override the retry_config used to build Config.

Examples

    let config = aws_config::from_env()
        .retry_config(RetryConfig::new().with_max_attempts(2))
        .load().await;

pub fn credentials_provider(
    self,
    credentials_provider: impl ProvideCredentials + 'static
) -> Self

Override the credentials provider used to build Config.

Examples

Override the credentials provider but load the default value for region:

 async fn create_config() {
let config = aws_config::from_env()
    .credentials_provider(Credentials::from_keys("accesskey", "secretkey", None))
    .load().await;

pub async fn load(self) -> Config

Load the default configuration chain

If fields have been overridden during builder construction, the override values will be used.

Otherwise, the default values for each field will be provided.

NOTE: When an override is provided, the default implementation is not used as a fallback. This means that if you provide a region provider that does not return a region, no region will be set in the resulting Config

Trait Implementations

impl Debug for ConfigLoader

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

Formats the value using the given formatter.

impl Default for ConfigLoader

fn default() -> ConfigLoader

Returns the “default value” for a type.