Hands-On Microservices with Rust

Sign-up handler

To handle sign-up requests, we need a POST method handler for the /signup path. We can declare it in the following way:

(POST) (/signup) => {    let data = post_input!(request, {        email: String,        password: String,    })?;    let user_email = data.email.trim().to_lowercase();    let user_password = pbkdf2_simple(&data.password, 12345)?;    {        use self::schema::users::dsl::*;        let conn = pool.get()?;        let user_exists: bool = select(exists(users.filter(email.eq(user_email.clone()))))            .get_result(&conn)?;        if !user_exists {            let uuid = format!("{}", uuid::Uuid::new_v4());            let new_user = models::NewUser {                id: &uuid,                email: &user_email,                password: &user_password,            };            diesel::insert_into(schema::users::table).values(&new_user).execute(&conn)?; Response::json(&()) ...