examples/marine-examples/url-downloader/service/modules/curl_adapter/src/main.rs

#![allow(improper_ctypes)]

use marine_rs_sdk::marine;
use marine_rs_sdk::module_manifest;

use marine_rs_sdk::MountedBinaryResult;
use marine_rs_sdk::WasmLoggerBuilder;

module_manifest!();

/// Log level can be changed by `RUST_LOG` env as well.
pub fn main() {
    WasmLoggerBuilder::new().build().unwrap();
}

#[marine]
pub fn download(url: String) -> String {
    log::info!("download called with url {}\n", url);

    let result = curl(vec![url]);

    String::from_utf8(result.stdout).unwrap()
}

/// Permissions in `Config.toml` should exist to use host functions.
#[marine]
#[link(wasm_import_module = "host")]
extern "C" {
    fn curl(cmd: Vec<String>) -> MountedBinaryResult;
}