1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize)]
struct Country {
// see the geo_types example if you want to store
// geotypes in your struct
geometry: geojson::Geometry,
name: String,
}
use std::error::Error;
use std::fs::File;
use std::io::{BufReader, BufWriter};
fn main() -> Result<(), Box<dyn Error>> {
let file_reader = BufReader::new(File::open("tests/fixtures/countries.geojson")?);
// Create a Vec of Country structs from the GeoJSON
let countries: Vec<Country> =
geojson::de::deserialize_feature_collection_to_vec::<Country>(file_reader)?;
assert_eq!(countries.len(), 180);
// Write the structs back to GeoJSON
let file_writer = BufWriter::new(File::create("example-output-countries.geojson")?);
geojson::ser::to_feature_collection_writer(file_writer, &countries)?;
Ok(())
}
|
