Struct EnvServerConfig 

pub struct EnvServerConfig {
    pub name: Option<String>,
    pub host: Option<String>,
    pub port: Option<u16>,
    pub transport_mode: Option<String>,
}

Environment variable configuration for server

All fields are Option<T> to distinguish between “not set from environment” and “explicitly set from environment”.

Semantics

• None - The environment variable was not set; use the config file or default value
• Some(value) - The environment variable was explicitly set to value

Example

// CRATES_DOCS_HOST not set
let config = EnvServerConfig::from_env(); // host == None, use default

// CRATES_DOCS_HOST=127.0.0.1
let config = EnvServerConfig::from_env(); // host == Some("127.0.0.1")

Fields

name: Option<String>

Server name

host: Option<String>

Host address

port: Option<u16>

Port

transport_mode: Option<String>

Transport mode

Trait Implementations

impl Clone for EnvServerConfig

fn clone(&self) -> EnvServerConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EnvServerConfig

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

Formats the value using the given formatter.

impl Default for EnvServerConfig

fn default() -> EnvServerConfig

Returns the “default value” for a type.