Struct ModuleConfig 

pub struct ModuleConfig<'a> { /* private fields */ }

Typed view over a Config for one module: prefixes every key with the module name in SCREAMING_SNAKE and parses values with defaults (issue #3).

use cratefield_core::{Config, ModuleConfig};
let cfg = MapConfig(
    [("EMAIL_SIGNUP_CONFIRM_TTL_DAYS".to_string(), "3".to_string())]
        .into_iter()
        .collect(),
);
let module = ModuleConfig::new("email-signup", &cfg);
assert_eq!(module.get_u32("CONFIRM_TTL_DAYS", 7), 3);
assert_eq!(module.get_bool("DOUBLE_OPT_IN", true), true);
assert_eq!(module.get_str("FROM_NAME", "Factory Zero"), "Factory Zero");

Implementations

impl<'a> ModuleConfig<'a>

pub fn new(module_name: &str, config: &'a dyn Config) -> ModuleConfig<'a>

pub fn key(&self, suffix: &str) -> String

The fully-qualified key for a module-suffix key.

pub fn get_str(&self, key_suffix: &str, default: &str) -> String

pub fn get_u32(&self, key_suffix: &str, default: u32) -> u32

pub fn get_bool(&self, key_suffix: &str, default: bool) -> bool

pub fn get_opt(&self, key_suffix: &str) -> Option<String>

An explicitly-set string key, None when absent.