alpha_vantage_package

A new Flutter package for using alpha vantage api.

You will need your own API key from https://www.alphavantage.co/ (it's free) to use stocks other than MSFT

This was refactored and updated from the original source: https://github.com/jcmelend/flutter_alpha_vantage_api so credits to the maker.

For more information about how the JSON is layed out, visit https://www.alphavantage.co/documentation/

Getting Started

For help getting started with Flutter, view our online documentation.

For help on editing package code, view the documentation.

Usage

Add the following import statement where you need to use this package libraries: import 'package:alpha_vantage_package/alpha_vantage_package.dart';

There are four libraries to use to call Alpha Vantage rest api: TimeSeries.dart, SectorPerformances.dart, ForeignExchange.dart, CryptoCurrencies.dart, and TechnicalIndicators.dart.

Example:

import 'package:flutter_test/flutter_test.dart';

import 'package:flutter_alpha_vantage_package/alpha_vantage_package.dart';

void main() async {


  test('Intraday', () async {
    final timeSeries = new TimeSeries("YourAlphaVantageAPIKey");
    //get the hourly time series for Microsoft with to-the-minute updates. You can change this.
    JSONObject json = await timeSeries.getIntraday("MSFT");
    var data = json.getJSONMap()["Time Series (1min)"];

    //convert to map to get specific data like the amount during lcose
    var data2 = Map<String, dynamic>.from(data);
    data2.forEach((k,v) => print(v["4. close"]));

     //Use get method to search entire json for key for stock
    expect(json.get("2. Symbol"), "MSFT");

    // Use map to find stock symbol
    expect(json.getJSONMap()["Meta Data"]["2. Symbol"], "MSFT");
    print(json.getJSONMap());


  });

  test('Intraday', () async {
    final technicalIndicator = new TechnicalIndicators("YourAlphaVantageAPIKey");
    //get SMA for microsoft
    JSONObject json = await technicalIndicator.getSMA("MSFT");

    // Use get method to search entire json for key for stock
    expect(json.get("1: Symbol"), "MSFT");

    // Use map to find stock symbol
    expect(json.getJSONMap()["Meta Data"]["1: Symbol"], "MSFT");
    print(json.getJSONMap());
  });
}

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