I've successfully used this library to connect to an AWS RDS postgres instance, and it's fantastic and straightforward, thanks for providing such a nice library!

However I haven't managed to encrypt the connection with TLS yet. It seems like Rustls is the ideal candidate to be embedded in an AWS lambda and is already supported by rusoto, an aws api binding in Rust.

I have found one implementation (untested) by@jbg here:https://github.com/jbg/rust-postgres-rustls/blob/master/src/lib.rs

Being a beginner in Rust I find it hard to understand how to bring a TLS implementation such that the postgres connection is secure, and I think the documentation could benefit from being a bit more verbose on the topic.

Particularly, an example for each of the binding provided (openssl, schannel etc.) with their respective cargo.toml and crates used, with a corresponding snippet. Pretty much like the native-tls example that is provided, including the cargo.toml so that we can see without a doubt how to pass the feature flag.

Again thanks for the library and time spend developing it, I hope a rustls binding would be helpful for everyone.