Waxosuit Echo Example

waxtyut_echo_lib.rs

extern crate wascap_guest as guest;

use serde::Serialize;
use guest::prelude::*;
use std::collections::HashMap;

call_handler!(handle_call);

pub fn handle_call(ctx: &CapabilitiesContext, cmd: &Command) -> Result<Event> {
    match cmd.payload {
        Some(ref p) => match p.type_url.as_ref() {
            http::TYPE_URL_HTTP_REQUEST => hello_world(ctx, p.value.as_slice()),
            core::TYPE_URL_HEALTH_REQUEST => Ok(Event::success()),
            _ => Ok(Event::bad_dispatch(&p.type_url)),
        },
        None => Ok(http::Response::bad_request().as_event(true, None)),
    }
}

fn hello_world(
   _ctx: &CapabilitiesContext,
   payload: impl Into<http::Request>) -> Result<Event> {
    let payload = payload.into();
    let echo = EchoRequest {
        method: payload.method,
        path: payload.path,
        query_string: payload.query_string,
        headers: payload.header,
        body: payload.body
    };
    Ok(http::Response::json(echo, 200, "OK").as_event(true, None))
}

#[derive(Serialize)]
struct EchoRequest {
    method: String,
    path: String,
    query_string: String,
    headers: HashMap<String, String>,
    body: Vec<u8>,
}