Struct Config 

pub struct Config {
    pub transports: TransportConfig,
    pub store: StoreConfig,
    pub buffer_size: usize,
    pub max_denied_keys: u32,
    pub log_level: String,
}

Main configuration structure for the server

This structure is built from CLI arguments and environment variables, and contains all settings needed to run the server.

Fields

transports: TransportConfig

Transport layer configuration

store: StoreConfig

Rate limiter store configuration

buffer_size: usize

Channel buffer size for actor communication

max_denied_keys: u32

Maximum number of denied keys to track in metrics

log_level: String

Logging level (error, warn, info, debug, trace)

Implementations

impl Config

pub fn from_env_and_args() -> Result<Self>

Build configuration from environment variables and CLI arguments

This method:

1. Parses CLI arguments (with env var fallback via clap)
2. Handles special flags like –list-env-vars
3. Builds the configuration structure
4. Validates the configuration

Errors

Returns an error if:

• No transport is specified
• Invalid configuration values are provided

pub fn has_any_transport(&self) -> bool

Check if at least one transport is configured

The server requires at least one transport to be functional.

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<'de> Deserialize<'de> for Config

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.