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

#![allow(improper_ctypes)]

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

module_manifest!();

pub fn main() {
    WasmLoggerBuilder::new().build().unwrap();
}

/// Combining of modules: `curl` and `local_storage`.
/// Calls `curl` and stores returned result into a file.
#[marine]
pub fn get_n_save(url: String, file_name: String) -> String {
    log::info!("get_n_save called with {} {}\n", url, file_name);

    let result = download(url);
    file_put(file_name, result.into_bytes());

    String::from("Ok")
}

#[marine]
pub fn put(file_name: String, file_content: Vec<u8>) -> String {
    file_put(file_name, file_content)
}

#[marine]
pub fn get(file_name: String) -> Vec<u8> {
    file_get(file_name)
}

/// Importing `curl` module
#[marine]
#[link(wasm_import_module = "curl_adapter")]
extern "C" {
    pub fn download(url: String) -> String;
}

/// Importing `local_storage` module
#[marine]
#[link(wasm_import_module = "local_storage")]
extern "C" {
    #[link_name = "get"]
    pub fn file_get(file_name: String) -> Vec<u8>;

    #[link_name = "put"]
    pub fn file_put(name: String, file_content: Vec<u8>) -> String;
}