Not able to parse ip address with port

I am trying to parse this string to a ip address

let address = "8.8.8.8:53".parse().unwrap();

This snippet is from https://github.com/bluejekyll/trust-dns/tree/main/crates/client#example

I am getting this error

error[E0282]: type annotations needed
  --> src/main.rs:15:13
   |
15 |         let address = "8.8.8.8:53".parse().unwrap();
   |             ^^^^^^^
   |
help: consider giving `address` an explicit type
   |
15 |         let address: /* Type */ = "8.8.8.8:53".parse().unwrap();
   |                    ++++++++++++

While the following snippet works fine

    let address:Ipv4Addr = "8.8.8.8".parse().unwrap();

Just wondering is readme is wrong ?

>Solution :

The code in the README reads as

let address = "8.8.8.8:53".parse().unwrap();
let conn = UdpClientConnection::new(address).unwrap();

Since UdpClientConnection::new() takes a std::net::SocketAddr as it’s argument, the compiler will infer that the type of adress has to resolve to this type, that is, using std::net::SocketAddr‘s implementation of FromStr. This why the README works as is.

Change your code to

use std::net::SocketAddr;
let address: SocketAddr = "8.8.8.8:53".parse().unwrap();

and it should work.