Crate dotenv 

Load and use environment variables from .env files.

Overview

This crate parses .env files with variable substitution support: $VAR, ${VAR}, ${VAR:-default}. It provides both convenience functions (for typical usage) and a builder-style Dotenv type (for fine-grained control).

Quick start

dotenv::load().ok();

for (key, value) in dotenv::vars() {
    println!("{key}={value}");
}

Available entry points

Task	Function / Type
Load .env automatically	load(), var(), vars()
Load a specific file	from_path(), from_filename()
Load from a custom source	from_read()
Builder with control over behaviour	Dotenv

Structs

Dotenv

Parsed dotenv content

Enums

Error

Errors that can occur when working with dotenv files.

Functions

from_filename

Create Dotenv from the specified file.

from_path

Create Dotenv from the specified path.

from_read

Create Dotenv from any Read implementor.

load

Load the .env file from the current directory or its parents.

var

Get the value for an environment variable.

vars

Return an iterator of (key, value) pairs for all environment variables of the current process.

Type Aliases

Result