Function envmnt::get_parse_or

pub fn get_parse_or<K, T, E>(key: K, default: T) -> EnvmntResult<T> where
    K: AsRef<OsStr>,
    T: FromStr + FromStr<Err = E>,
    E: Display, 

Returns the parsed environment variable value or if is not defined, the default value will be returned.

Arguments

• key - The environment variable name
• default - The default value to use in case env var is not set

Example

fn main() {
    envmnt::set("ENV_VAR", "123");

    let value: i32 = envmnt::get_parse_or("ENV_VAR", 321).unwrap();
    assert_eq!(value, 123);

    let value: i32 = envmnt::get_parse_or("ENV_MISSING_VAR", 321).unwrap();
    assert_eq!(value, 321);
}