https://github.com/pimalaya/io-http
Set of I/O-free Rust coroutines to manage HTTP streams
https://github.com/pimalaya/io-http
coroutine http https io-free library rust sans-io stream tcp
Last synced: 7 months ago
JSON representation
Set of I/O-free Rust coroutines to manage HTTP streams
- Host: GitHub
- URL: https://github.com/pimalaya/io-http
- Owner: pimalaya
- License: mit
- Created: 2025-03-11T10:51:23.000Z (11 months ago)
- Default Branch: master
- Last Pushed: 2025-06-04T09:03:46.000Z (8 months ago)
- Last Synced: 2025-06-07T01:39:16.062Z (8 months ago)
- Topics: coroutine, http, https, io-free, library, rust, sans-io, stream, tcp
- Language: Rust
- Homepage: https://docs.rs/io-http/latest/io_http
- Size: 24.4 KB
- Stars: 3
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
Awesome Lists containing this project
README
# I/O HTTP [](https://docs.rs/io-http/latest/io_http) [](https://matrix.to/#/#pimalaya:matrix.org)
Set of **I/O-free** Rust coroutines to manage HTTP streams, based on [io-stream](https://github.com/pimalaya/io-stream).
This library allows you to manage HTTP streams using an I/O-agnostic approach, based on 3 concepts:
### Coroutine
A coroutine is an *I/O-free*, *resumable* and *composable* state machine that **emits I/O requests**. A coroutine is considered *terminated* when it does not emit I/O requests anymore.
*See available coroutines at [./src/coroutines](https://github.com/pimalaya/io-http/tree/master/src).*
### Runtime
A runtime contains all the I/O logic, and is responsible for **processing I/O requests** emitted by coroutines.
*See available runtimes at [io-stream](https://github.com/pimalaya/io-stream/tree/master/src/runtimes).*
### Loop
The loop is the glue between coroutines and runtimes. It makes the coroutine progress while allowing runtime to process I/O.
## Examples
*See complete examples at [./examples](https://github.com/pimalaya/io-http/blob/master/examples).*
### Send HTTPS request via rustls synchronously
```rust,ignore
use std::{net::TcpStream, sync::Arc};
use io_http::{coroutines::Send, Request};
use io_stream::runtimes::std::handle;
use rustls::{ClientConfig, ClientConnection, StreamOwned};
use rustls_platform_verifier::ConfigVerifierExt;
// build TLS stream
let domain = "github.com"
let config = ClientConfig::with_platform_verifier();
let server_name = domain.to_string().try_into().unwrap();
let conn = ClientConnection::new(Arc::new(config), server_name).unwrap();
let tcp = TcpStream::connect((domain, 443)).unwrap();
let tls = StreamOwned::new(conn, tcp);
// send request send receive response
let request = Request::new("GET", "/", "1.0").body("");
let mut arg = None;
let mut send = Send::new(request);
let response = loop {
match send.next() {
Ok(response) => break response,
Err(io) => arg = Some(handle(&mut stream, io).unwrap()),
}
};
```
*See complete example at [./examples/send.rs](https://github.com/pimalaya/io-http/blob/master/examples/send.rs).*
```rust
cargo run --example send
```
### More examples
Have a look at projects built on the top of this library:
- *TODO*
## Sponsoring
[](https://nlnet.nl/)
Special thanks to the [NLnet foundation](https://nlnet.nl/) and the [European Commission](https://www.ngi.eu/) that helped the project to receive financial support from various programs:
- [NGI Assure](https://nlnet.nl/project/Himalaya/) in 2022
- [NGI Zero Entrust](https://nlnet.nl/project/Pimalaya/) in 2023
- [NGI Zero Core](https://nlnet.nl/project/Pimalaya-PIM/) in 2024 *(still ongoing)*
If you appreciate the project, feel free to donate using one of the following providers:
[](https://github.com/sponsors/soywod)
[](https://ko-fi.com/soywod)
[](https://www.buymeacoffee.com/soywod)
[](https://liberapay.com/soywod)
[](https://thanks.dev/soywod)
[](https://www.paypal.com/paypalme/soywod)