Deboa

deboa (“fine” portuguese slang) is a straightforward, non opinionated, developer-centric HTTP client library for Rust. It offers a rich array of modern features—from flexible authentication and serialization formats to runtime compatibility and middleware support—while maintaining simplicity and ease of use. It’s especially well-suited for Rust projects that require a lightweight, efficient HTTP client without sacrificing control or extensibility.

Built on top of hyper.

Features

easily add, remove and update headers
helpers to add basic and bearer auth
set retries and timeout
pluggable catchers (interceptors)
pluggable compression (gzip, deflate, brotli)
pluggable serialization (json, xml, msgpack, yaml, fory and cbor)
cookies support
urlencoded and multipart forms
comprehensive error handling
response streaming
upgrade support (websocket, etc.)
runtime compatibility (tokio and smol)
http1/2/3 support

Benchmark Results

As of the latest benchmark run, Deboa demonstrates competitive performance compared to Reqwest.

Get Request

	`Deboa`	`Reqwest`
`100`	`46.37 ms` (✅ 1.00x)	`48.67 ms` (✅ 1.05x slower)
`500`	`46.47 ms` (✅ 1.00x)	`47.32 ms` (✅ 1.02x slower)
`1000`	`46.36 ms` (✅ 1.00x)	`47.34 ms` (✅ 1.02x slower)

Quick Start

Add to your Cargo.toml:

[dependencies]
deboa = { version = "0.0.9" }
deboa-tokio = { version = "0.1.0-beta.2" }

Basic usage:

use deboa::{
    request::{DeboaRequest, FetchWith, get},
    Result,
};
use deboa_tokio::Client;
use deboa_extras::http::{self, serde::json::JsonBody};

#[tokio::main]
async fn main() -> Result<()> {
  // Create a new Client instance, set timeouts, catches and protocol.
  let client = Client::new();

  let posts: Vec<Post> = get("https://jsonplaceholder.typicode.com/posts")?
    .header(header::CONTENT_TYPE, "application/json")
    .send_with(&client)
    .await?
    .body_as(JsonBody)
    .await?;

  println!("posts: {:#?}", posts);

  Ok(())
}

Crates

Crate	Description	Documentation
deboa	Core HTTP client library
deboa-smol	Smol runtime support for Deboa
deboa-tokio	Tokio runtime support for Deboa
deboa-extras	Additional functionality and middleware
deboa-fory	Apache Fory support for Deboa
deboa-macros	Procedural macros for Deboa
vamo	DRY REST client wrapper
vamo-macros	Macros for Vamo