reqwest for WebAssembly

An ergonomic, batteries-included HTTP Client for Rust. This is a fork from the original reqwest with support for WebAssembly compilation target. That allows reqwest apps to run inside the WasmEdge Runtime as a lightweight and secure alternative to natively compiled apps in Linux container.

For more details and usage examples, please see the upstream reqwest source and these examples.

Note: We do not yet support SSL / TLS connections in reqwest_wasi yet.

• Plain bodies, JSON, urlencoded, multipart
• Customizable redirect policy
• HTTP Proxies
• Cookie Store

Example

This asynchronous example uses Tokio and enables some optional features, so your Cargo.toml could look like this:

[dependencies]
reqwest_wasi = { version = "0.11", features = ["json"] }
tokio_wasi = { version = "1.21", features = ["full"] }

And then the code:

use std::collections::HashMap;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let resp = reqwest::get("http://eu.httpbin.org/ip")
        .await?
        .json::<HashMap<String, String>>()
        .await?;
    println!("{:#?}", resp);
    Ok(())
}

Blocking Client

There is an optional "blocking" client API that can be enabled:

[dependencies]
reqwest_wasi = { version = "0.11", features = ["blocking", "json"] }

use std::collections::HashMap;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let resp = reqwest::blocking::get("http://eu.httpbin.org/ip")?
        .json::<HashMap<String, String>>()?;
    println!("{:#?}", resp);
    Ok(())
}

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.