Struct EnvSource 

pub struct EnvSource { /* private fields */ }

Configuration source that loads from environment variables

Implementations

impl EnvSource

pub fn new() -> Self

Create a new environment source

pub fn prefix<S: Into<String>>(self, prefix: S) -> Self

Set a prefix for environment variables (e.g., “APP_”)

pub fn separator<S: Into<String>>(self, separator: S) -> Self

Set the separator used to create nested keys (default: “__”)

pub fn case_sensitive(self, case_sensitive: bool) -> Self

Set whether environment variable names are case-sensitive

pub fn with_name<S: Into<String>>(self, name: S) -> Self

Set the name of this source

Trait Implementations

impl ConfigSource for EnvSource

fn load<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<ConfigValue>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Load configuration from this source

fn name(&self) -> &str

Get the name of this source (for debugging/logging)

fn supports_watching(&self) -> bool

Check if this source supports watching for changes

fn start_watching<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Receiver<ConfigValue>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Start watching for changes (if supported)

impl Default for EnvSource

fn default() -> Self

Returns the “default value” for a type.