Function ntex_redis::cmd::HLen

pub fn HLen<T>(key: T) -> IntOutputCommand where
    BulkString: From<T>, 

HLEN redis command

Returns the number of fields contained in the hash stored at key.

use ntex_redis::{cmd, RedisConnector};

#[ntex::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let redis = RedisConnector::new("127.0.0.1:6379").connect().await?;
    let key = gen_random_key();

    // create hashmap and set field
    redis.exec(cmd::HSet(&key, "test-key", "value")).await?;

    // get len of hashmap
    let value = redis.exec(cmd::HLen(&key)).await?;

    assert_eq!(value, 1);
    Ok(())
}