meteostat 0.4.3

Get historic weather data from thousands of weather stations around the world.
Documentation 
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//! examples/graph_data.rs
//!
//! This example demonstrates fetching hourly weather data for a specific location
//! using the `meteostat` crate and plotting the temperature using the `plotters` crate.
//!
//! To run this example:
//! cargo run --example graph_data --features plotting

use std::error::Error;

use meteostat::{LatLon, Meteostat, Year};
use plotlars::{Line, Plot, Rgb, TimeSeriesPlot};
use polars::prelude::*;

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    println!("Fetching weather data from Meteostat...");

    // 1. Create a Meteostat client
    let client = Meteostat::new().await?;

    // 2. Define location and time range
    let location = LatLon(52.118641, 5.185589); // de Bilt

    // 3. Build and execute the query using meteostat
    let weather_data = client
        .daily()
        .location(location)
        .call()
        .await?
        .get_for_period(Year(2023))?
        .frame
        .collect()?;

    // 4. Plot the data
    println!("Generating temperature plot...");
    plot_temperature(&weather_data);
    println!("Plot shown in browser.");

    Ok(())
}

fn plot_temperature(dataset: &DataFrame) {
    TimeSeriesPlot::builder()
        .data(dataset)
        .x("date")
        .y("tavg")
        .additional_series(vec!["tmin", "tmax"])
        .colors(vec![
            Rgb(120, 120, 120), // tavg
            Rgb(69, 143, 196),  // tmin
            Rgb(199, 115, 42),  // tmax
        ])
        .lines(vec![Line::Solid, Line::Dot, Line::Dot])
        .plot_title("Temperature at De Bilt (2023)")
        .build()
        .plot();
}