source code for simple alert while trading

main.rs

#[path="models/financevietstock.rs"]
pub mod financevietstock;

use reqwest::header::CONTENT_LENGTH;
use reqwest::header::CONTENT_TYPE;
use reqwest::header::USER_AGENT;
use std::collections::HashMap;
use crate::financevietstock::FinanceResponse;
use std::time::Duration;
use async_std::task;

#[tokio::main]
async fn main() ->  Result<(), Box<dyn std::error::Error>> {


    let client = reqwest::Client::new();
    loop{
        let mut stock_expected_price = HashMap::new();

        stock_expected_price.insert(String::from("DAH"), 9000);
        stock_expected_price.insert(String::from("VNG"), 16000);
        stock_expected_price.insert(String::from("AAM"), 11500);
        stock_expected_price.insert(String::from("TNH"), 35000);
        stock_expected_price.insert(String::from("VNS"), 10800);
        for (key, value) in stock_expected_price.into_iter() {

            let body_request = format!("code={stock_price}&s=1",stock_price=key);
            let res = client.post("https://finance.vietstock.vn/company/tradinginfo")
                .header(CONTENT_LENGTH,body_request.chars().count())
                .header(CONTENT_TYPE,"application/x-www-form-urlencoded; charset=UTF-8")
                .header(USER_AGENT,"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:81.0) Gecko/20100101 Firefox/81.0")
                .body(body_request)
                .send()
                .await?;
            println!("{:?}",res);
            let json_value: FinanceResponse  = res.json().await?;
            println!("{:?}",json_value);
            assert_eq!(json_value.LastPrice > value, false);
        }

        task::sleep(Duration::from_secs(3600)).await;
    }
    Ok(())
}