Rust Requires Chilkat v11.4.0+

Finnhub API - Get Stock Quote

See more AI Examples

Demonstrates how to get a stock quote from the Finnhub API. Rust

// Replace with your actual Finnhub API key.
let api_key = "YOUR_FINNHUB_API_KEY".to_string();
let symbol = "AAPL".to_string();

let http = chilkat::Http::new();

// This is the URL without params.
let url_without_params = "https://finnhub.io/api/v1/quote".to_string();

let req = chilkat::HttpRequest::new();

// Add params that will be sent in the URL.
req.add_param("symbol", &symbol);
req.add_param("token", &api_key);

req.set_http_verb("GET");

// Send the request to get the JSON response.
let resp = chilkat::HttpResponse::new();
if http.http_req(&url_without_params, &req, &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

let json = chilkat::JsonObject::new();
let _ = resp.get_body_json(&json);

let status_code = resp.status_code();
println!("response status code: {}", status_code);

json.set_emit_compact(false);
println!("{}", json.emit().unwrap_or_default());

// Sample result:

// {
//   "c": 248.8,
//   "d": -4.09,
//   "dp": -1.6173,
//   "h": 255.493,
//   "l": 248.07,
//   "o": 253.9,
//   "pc": 252.89,
//   "t": 1774641600
// }

if status_code == 200 {
    // Add the symbol to the top of the result.
    let _ = json.add_string_at(0, "symbol", &symbol);

    // Rename members for clarification.
    let _ = json.rename("c", "currentPrice");
    let _ = json.rename("d", "change");
    let _ = json.rename("dp", "percentChange");
    let _ = json.rename("h", "high");
    let _ = json.rename("l", "low");
    let _ = json.rename("o", "open");
    let _ = json.rename("pc", "prevClose");
    let _ = json.rename("t", "unixTime");

    println!("{}", json.emit().unwrap_or_default());

} else {
    println!("Failed");
}