https://github.com/pleshevskiy/enve
It helps you work with environment variables and convert it to any type using only type annotations.
https://github.com/pleshevskiy/enve
config env environment rust rust-lang web
Last synced: about 1 year ago
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It helps you work with environment variables and convert it to any type using only type annotations.
- Host: GitHub
- URL: https://github.com/pleshevskiy/enve
- Owner: pleshevskiy
- License: mit
- Archived: true
- Created: 2019-12-22T10:13:28.000Z (over 6 years ago)
- Default Branch: main
- Last Pushed: 2022-12-24T15:35:16.000Z (over 3 years ago)
- Last Synced: 2024-10-20T01:04:02.694Z (over 1 year ago)
- Topics: config, env, environment, rust, rust-lang, web
- Language: Rust
- Homepage:
- Size: 215 KB
- Stars: 47
- Watchers: 3
- Forks: 5
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
Awesome Lists containing this project
README
# enve
[](https://crates.io/crates/enve)
[](https://docs.rs/enve)
[](https://github.com/pleshevskiy/enve/actions/workflows/ci.yml)
```toml
[dependencies]
enve = "0.3"
```
`enve` helps you work with environment variables and convert it to **any type**
using only **type annotations**.
All standard environment variable types are included, but `enve` under the hood
uses [estring](https://github.com/pleshevskiy/estring), so you can easily create
your own type.
## [Documentation](https://docs.rs/enve)
Look at the [examples] to see the power!
[examples]: https://github.com/pleshevskiy/enve/tree/main/examples
## Usage
Basic
```rust
fn main() -> Result<(), enve::Error> {
enve::sset("E", "10");
let res: f32 = enve::get("E")?;
println!("result: {}", res);
Ok(())
}
```
You can use predefined structs like `SepVec` if you enable `structs` feature.
Note: You can use custom types as annotations! Just implement `ParseFragment`.
```rust
use enve::SepVec;
type PlusVec = SepVec;
type MulVec = SepVec;
fn main() -> Result<(), enve::Error> {
enve::sset("E", "10+5*2+3");
let res: f32 = enve::get::>>("E")
.unwrap()
.iter()
.map(|m| m.iter().product::())
.sum::();
assert_eq!(res, 23.0);
Ok(())
}
```
You can also use predefined aggregators if you enable `aggs` feature.
```rust
use enve::{SepVec, Product, Sum, estring::Aggregate};
type PlusVec = SepVec;
type MulVec = SepVec;
fn main() -> Result<(), enve::Error> {
enve::sset("E", "10+5*2+3");
let res: f32 = enve::get::>>>>("E")?
.agg();
assert_eq!(res, 23.0);
Ok(())
}
```
## Contact Us
Join us in:
[](https://matrix.to/#/#enve_team:matrix.org)
## License
**MIT**. See [LICENSE](https://github.com/pleshevskiy/estring/LICENSE) to see
the full text.
## Contributors
[pleshevskiy](https://github.com/pleshevskiy) (Dmitriy Pleshevskiy) – creator,
maintainer.