Android™

Finnhub API - Get Stock Quote

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

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    //  Replace with your actual Finnhub API key.
    String apiKey = "YOUR_FINNHUB_API_KEY";
    String symbol = "AAPL";

    CkHttp http = new CkHttp();

    //  This is the URL without params.
    String urlWithoutParams = "https://finnhub.io/api/v1/quote";

    CkHttpRequest req = new CkHttpRequest();

    //  Add params that will be sent in the URL.
    req.AddParam("symbol",symbol);
    req.AddParam("token",apiKey);

    req.put_HttpVerb("GET");

    //  Send the request to get the JSON response.
    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpReq(urlWithoutParams,req,resp);
    if (success == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    CkJsonObject json = new CkJsonObject();
    resp.GetBodyJson(json);

    int statusCode = resp.get_StatusCode();
    Log.i(TAG, "response status code: " + String.valueOf(statusCode));

    json.put_EmitCompact(false);
    Log.i(TAG, json.emit());

    //  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 (statusCode == 200) {
        //  Add the symbol to the top of the result.
        json.AddStringAt(0,"symbol",symbol);

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

        Log.i(TAG, json.emit());

        }
    else {
        Log.i(TAG, "Failed");
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}