Module env 

Reading configuration out of the environment.

A variable that is present but blank counts as missing: a deploy whose secret failed to mount sets an empty string far more often than it unsets the variable.

Enums

EnvError

Why an environment variable could not be used.

Constants

PREFIX

The prefix on every environment variable this crate reads.

Functions

optional

Reads a variable which may be absent.

parse_or

Reads and parses a variable, falling back to default when absent.

parse_required

Reads and parses a variable which must be present and non-blank.

required

Reads a variable which must be present and non-blank.