Struct Config 

pub struct Config { /* private fields */ }

A configuration holder that loads from TOML and allows environment overrides.

Implementations

impl Config

pub fn new() -> Self

Creates an empty configuration store.

pub fn from_toml(content: &str) -> Result<Self, ConfigError>

Loads configuration values from TOML content.

pub fn from_file(path: &Path) -> Result<Self, ConfigError>

Loads configuration values from a TOML file.

pub fn get(&self, key: &str) -> Option<&Value>

Returns a configuration value by dotted path.

pub fn get_str(&self, key: &str) -> Option<&str>

Returns a string configuration value by dotted path.

pub fn get_i64(&self, key: &str) -> Option<i64>

Returns an integer configuration value by dotted path.

pub fn get_bool(&self, key: &str) -> Option<bool>

Returns a boolean configuration value by dotted path.

pub fn set(&mut self, key: impl Into<String>, value: Value)

Sets a configuration value by dotted path, creating nested objects as needed.

pub fn apply_env_overrides(&mut self, prefix: &str)

Applies environment variable overrides using the provided prefix.

APP_DATABASE_HOST becomes the dotted key database.host.

pub fn extract<T: DeserializeOwned>(&self) -> Result<T, ConfigError>

Deserializes the configuration into a typed structure.

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Config

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

Formats the value using the given formatter.

impl Default for Config

fn default() -> Config

Returns the “default value” for a type.