prime.rs

prime.rs

use actix_web::{web, App, HttpResponse, HttpServer};

fn is_prime(n: u64) -> bool {
    if n <= 1 {
        return false;
    }
    for i in 2..=(n as f64).sqrt() as u64 {
        if n % i == 0 {
            return false;
        }
    }
    true
}

async fn index() -> HttpResponse {
    HttpResponse::Ok().body("Hello, World!")
}

async fn primes() -> HttpResponse {
    let mut prime_numbers = String::new();
    for num in 2..=1_000_000 {
        if is_prime(num) {
            prime_numbers.push_str(&num.to_string());
            prime_numbers.push_str("\n");
        }
    }
    HttpResponse::Ok().body(prime_numbers)
}

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| {
        App::new()
            .route("/", web::get().to(index))
            .route("/primes", web::get().to(primes))
    })
    .bind("127.0.0.1:8080")?
    .run()
    .await
}