Crate tenvy 

Parse environment variables into type-safe structures.

use tenvy::Tenvy;

#[derive(Debug, Tenvy)]
struct Environment {
    database_url: String,
    server: Server,
}

#[derive(Debug, Tenvy)]
struct Server {
    addr: std::net::SocketAddr,
    workers: Option<std::num::NonZeroUsize>,
}

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let env: Environment = tenvy::from_env()?;
    println!("{env:#?}");
    Ok(())
}

Structs

Env

Current context of environment variable parsing.

From

Adapter that parses U and then transforms it into T using From.

FromStr

Adapter that parses T using its FromStr implementation.

TryFrom

Adapter that parses U and then transforms it into T using TryFrom.

Enums

Error

An error during parsing of environment variables.

Traits

Tenvy

Parse a value from environment variables.

Functions

from_env

Parse environment variables into T.

Derive Macros

Tenvyderive

Derive an implementation of Tenvy for your structure.