csml_engine 1.11.2

The CSML Engine is a conversational engine designed to make it extremely easy to create rich and powerful chatbots.
Documentation 
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#[cfg(feature = "mongo")]
pub fn get_expires_at_for_mongodb(ttl: Option<chrono::Duration>) -> Option<bson::DateTime> {

    match ttl {
        Some(ttl) => {
            let expires_at = chrono::Utc::now() + ttl;

            Some(bson::DateTime::from_chrono(expires_at))
        },
        None => None
    }
}

#[cfg(feature = "dynamo")]
pub fn get_expires_at_for_dynamodb(ttl: Option<chrono::Duration>) -> Option<i64> {
    match ttl {
        Some(ttl) => {
            let expires_at = chrono::Utc::now() + ttl;

            Some(expires_at.timestamp())
        },
        None => None
    }
}

#[cfg(feature = "postgresql")]
pub fn get_expires_at_for_postgresql(ttl: Option<chrono::Duration>) -> Option<chrono::NaiveDateTime> {
    match ttl {
        Some(ttl) => {
            let expires_at = chrono::Utc::now().naive_utc() + ttl;

            Some(expires_at)
        },
        None => None
    }
}

#[cfg(feature = "sqlite")]
pub fn get_expires_at_for_sqlite(ttl: Option<chrono::Duration>) -> Option<chrono::NaiveDateTime> {
    match ttl {
        Some(ttl) => {
            let expires_at = chrono::Utc::now().naive_utc() + ttl;

            Some(expires_at)
        },
        None => None
    }
}