wapc-guest

Crates.iowapc-guest
lib.rswapc-guest
version1.1.0
sourcesrc
created_at2019-09-19 14:10:42.554126
updated_at2023-03-23 14:34:00.202843
descriptionGuest SDK for building waPC-compliant WebAssembly Modules
homepagehttps://wapc.io
repository
max_upload_size
id165967
size23,038
Phil Kedy (pkedy)

documentation

https://docs.rs/wapc-guest

README

waPC Guest SDK

crates.io license

The wapc-guest library is an implementation of the guest-side of the waPC WebAssembly protocol. wapc-guest gives Rust developers the pieces necessary to easily compile WebAssembly modules that you can load in waPC hosts. Each guest module registers function handlers with [register_function()]. Each handler should return a [CallResult] (a Result<Vec<u8>,Box<dyn Error + Sync + Send>>) with the function's return value.

It's typically used by code generated by the wapc CLI.

Example

use wapc_guest as wapc;

#[no_mangle]
pub fn wapc_init() {
  wapc::register_function("ping", ping);
}

fn ping(msg: &[u8]) -> wapc::CallResult {
  wapc::console_log(&format!(
    "IN_WASM: Received request for `ping` operation with payload : {}",
    std::str::from_utf8(msg).unwrap()
  ));
  let _res = wapc::host_call("binding", "sample:namespace", "pong", msg)?;
  Ok(msg.to_vec())
}

Building

This crate is meant for projects targeting wasm32-unknown-unknown or wasm32-wasi.

Commit count: 0

cargo fmt