config

Environment variable access with clear failure modes.

Functions

get

pub fn get(key: String) -> Option(String)

Read an environment variable. Returns None if not set.

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get_or

pub fn get_or(key: String, default: String) -> String

Read an environment variable, returning default if unset.

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require

pub fn require(key: String) -> String

Read an environment variable. Panics at startup with a descriptive message if the variable is not set. Use this for required configuration — failing fast at boot is better than a confusing error at request time.