Load a JSON URL String and parse it automatically with rust 01.06.23

Example:
Check your Website Performance via googles pagespeed
https://developers.google.com/speed/docs/insights/v5/get-started?hl=en

## Cargo.tom
```yaml

[package]
name = "speedtest"
version = "0.1.0"
edition = "2021"

[dependencies]
curl = {"version"= "0.4.44"}
json = {"version"= "0.12.4"}

```

## src/main.rs
```rust

use curl::easy::Easy;
use std::str;

fn speed_test() -> String {
    println!("....speed test");
    let url = "https://www.googleapis.com/pagespeedonline/v5/runPagespeed?url=https://www.myridia.com&category=performance";
    let mut data: Vec<u8> = Vec::new();
    let mut handle = Easy::new();
    handle.ssl_verify_peer(false);
    handle.url(url).unwrap();
    {
        let mut transfer = handle.transfer();
        transfer
            .write_function(|new_data| {
                data.extend_from_slice(new_data);
                Ok(new_data.len())
            })
            .unwrap();
        transfer.perform().unwrap();
    }
    let s = str::from_utf8(&data).unwrap();
    //println!("...String Result: {:?}", s);
    let o = json::parse(s).unwrap();
    //println!("...Parsed Object: {:?}", o);
    let result = &o["lighthouseResult"]["categories"]["performance"]["score"];

return result.to_string();
}

fn main() {
    println!("....main");
    let r = speed_test();
    println!("Performance: {}", r);
}

```

## Library Structure 
```text
speedtest v0.1.0 (/home/veto/webs/speedtest/body)
├── curl v0.4.44
│   ├── curl-sys v0.4.62+curl-8.1.0
│   │   ├── libc v0.2.144
│   │   ├── libz-sys v1.1.9
│   │   │   └── libc v0.2.144
│   │   │   [build-dependencies]
│   │   │   ├── cc v1.0.79
│   │   │   └── pkg-config v0.3.27
│   │   └── openssl-sys v0.9.88
│   │       └── libc v0.2.144
│   │       [build-dependencies]
│   │       ├── cc v1.0.79
│   │       └── pkg-config v0.3.27
│   │   [build-dependencies]
│   │   ├── cc v1.0.79
│   │   └── pkg-config v0.3.27
│   ├── libc v0.2.144
│   ├── openssl-probe v0.1.5
│   ├── openssl-sys v0.9.88 (*)
│   └── socket2 v0.4.9
│       └── libc v0.2.144
└── json v0.12.4

```

https://docs.rs/curl/0.4.44/curl/easy/struct.Easy.html#

Anonymous

Load a JSON URL String and parse it automatically with rust 01.06.23

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