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# H2
A Tokio aware, HTTP/
2
client & server implementation for Rust.
[](https://open
source.org/licenses/MIT)
[](https://crates.io/crates/
h2)
[][dox]
More information about this crate can be found in the [crate documentation][dox].
[dox]:
https://docs.rs/h2
## Features
* Client and server HTTP/
2
implementation.
* Implements the full HTTP/
2
specification.
* Passes [h2spec](
https://github.com/summerwind/h2spec).
* Focus on performance and correctness.
* Built on [Tokio](
https://tokio.rs).
## Non goals
This crate is intended to only be an implementation of the HTTP/
2
specification. It does not handle:
* Managing TCP connections
* HTTP
1
.
0
upgrade
* TLS
* Any feature not described by the HTTP/
2
specification.
This crate is now used by [hyper](
https://github.com/hyperium/hyper),
which will provide a
ll of these features.
## Usage
To use `h2`, first add this to your `Cargo.toml`:
```toml
[dependencies]
h2 = "
0
.
4
"
```
Next, add this to your crate:
```rust
extern crate h2;
use h2::server::Connection;
fn main() {
// ...
}
```
## FAQ
**Is this an embedded Java SQL database engine?**
[No](
https://www.h2database.com).
[Dauer der Verarbeitung: 0.36 Sekunden]
2026-08-25