use duration_str::deserialize_duration_time;
use serde::*;
use time::Duration;
#[derive(Debug, Deserialize)]
struct Config {
#[serde(deserialize_with = "deserialize_duration_time")]
time_ticker: Duration,
}
fn main() {
let json = r#"{"time_ticker":"1m+30"}"#;
let config: Config = serde_json::from_str(json).unwrap();
assert_eq!(config.time_ticker, Duration::seconds(60 + 30));
}