Weather Updates In Console Application Using API

I am writing this article to give you a basic idea of consuming a Web API from Yahoo Weather and display it in the Console.

Let us create a project with Console App template.



Add a class and name it as WeatherReport.



Add the following properties in WeatherReport class.

public class WeatherReport {
    public string date {
        get;
        set;
    }
    public long temp {
        get;
        set;
    }
    public string text {
        get;
        set;
    }
}

Get woeid (Where on earth ID) of your city using this link (Just remove Hyderabad and keep your city name). For Hyderabad, the woeid is 2295414 which I read from the response of the below API call.

https://www.metaweather.com/api/location/search/?query=hyderabad.

The response of the above link will look like this -

[{
    "title": "Hyderabad",
    "location_type": "City",
    "woeid": 2295414,
    "latt_long": "17.508829,78.434578"
}]

Now, let us use a wonderful Free API for weather updates and put it in our code. I used Yahoo API (since it is Free for developers) and passed the woeid 2295414 in the query.

static void Main(string[] args)
        {
HttpClient client = new HttpClient();
            client.BaseAddress = new Uri("https://query.yahooapis.com/v1/public/yql?q=select%20item%20from%20weather.forecast%20where%20woeid%20in%20(2295414%20)&format=json");
            client.DefaultRequestHeaders.Accept.Clear();
            client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));

            GetWeather(client).Wait();
}

        static async Task GetWeather(HttpClient cons)
        {
            using (cons)
            {
                HttpResponseMessage res = await cons.GetAsync("");

                res.EnsureSuccessStatusCode();
                if (res.IsSuccessStatusCode)
                {
                    string weather = await res.Content.ReadAsStringAsync();

                   JObject jobj= JObject.Parse(weather);
                    JToken jToken = jobj.First;
                    string WeatherState = jToken.First["results"]["channel"]["item"]["condition"].ToString();
                    WeatherReport report = Newtonsoft.Json.JsonConvert.DeserializeObject<WeatherReport>(WeatherState);
                    Console.WriteLine("\n");

                    Console.WriteLine("Weather Station: Hyderabad" );
                    Console.WriteLine("Temperature Details");
                    Console.WriteLine("-----------------------------------------------------------");
                    Console.WriteLine("Temperature (in deg. C): "+ (report.temp-32)*0.55);// Converted from Fahrenheit to Celsius
                    Console.WriteLine("Weather State: " + report.text);
                    Console.WriteLine("Applicable Time: " + report.date);
                    Console.ReadLine();
                }
            }
        }

When we run the above code, the output will be something like this.

Weather Station: Hyderabad
Temperature Details
-----------------------------------------------------------
Temperature (in deg. C): 16.5
Weather State: Mostly Cloudy
Applicable Time: Tue, 19 Dec 2017 03:30 AM IST

We can get more details from JSON and display it on our Console. Here is how the JSON will look like.

{
    "query": {
        "count": 1,
        "created": "2017-12-18T23:34:41Z",
        "lang": "en-US",
        "results": {
            "channel": {
                "units": {
                    "distance": "mi",
                    "pressure": "in",
                    "speed": "mph",
                    "temperature": "F"
                },
                "title": "Yahoo! Weather - Hyderabad, Telangana, IN",
                "link": "http://us.rd.yahoo.com/dailynews/rss/weather/Country__Country/*https://weather.yahoo.com/country/state/city-2295414/",
                "description": "Yahoo! Weather for Hyderabad, Telangana, IN",
                "language": "en-us",
                "lastBuildDate": "Tue, 19 Dec 2017 05:04 AM IST",
                "ttl": "60",
                "location": {
                    "city": "Hyderabad",
                    "country": "India",
                    "region": " Telangana"
                },
                "wind": {
                    "chill": "61",
                    "direction": "23",
                    "speed": "7"
                },
                "atmosphere": {
                    "humidity": "59",
                    "pressure": "954.0",
                    "rising": "0",
                    "visibility": "16.1"
                },
                "astronomy": {
                    "sunrise": "6:41 am",
                    "sunset": "5:46 pm"
                },
                "image": {
                    "title": "Yahoo! Weather",
                    "width": "142",
                    "height": "18",
                    "link": "http://weather.yahoo.com",
                    "url": "http://l.yimg.com/a/i/brand/purplelogo//uh/us/news-wea.gif"
                },
                "item": {
                    "title": "Conditions for Hyderabad, Telangana, IN at 04:30 AM IST",
                    "lat": "17.418409",
                    "long": "78.450012",
                    "link": "http://us.rd.yahoo.com/dailynews/rss/weather/Country__Country/*https://weather.yahoo.com/country/state/city-2295414/",
                    "pubDate": "Tue, 19 Dec 2017 04:30 AM IST",
                    "condition": {
                        "code": "27",
                        "date": "Tue, 19 Dec 2017 04:30 AM IST",
                        "temp": "61",
                        "text": "Mostly Cloudy"
                    },
                    "forecast": [{
                        "code": "34",
                        "date": "19 Dec 2017",
                        "day": "Tue",
                        "high": "82",
                        "low": "62",
                        "text": "Mostly Sunny"
                    }, {
                        "code": "32",
                        "date": "20 Dec 2017",
                        "day": "Wed",
                        "high": "81",
                        "low": "60",
                        "text": "Sunny"
                    }, {
                        "code": "32",
                        "date": "21 Dec 2017",
                        "day": "Thu",
                        "high": "82",
                        "low": "58",
                        "text": "Sunny"
                    }, {
                        "code": "32",
                        "date": "22 Dec 2017",
                        "day": "Fri",
                        "high": "82",
                        "low": "59",
                        "text": "Sunny"
                    }, {
                        "code": "32",
                        "date": "23 Dec 2017",
                        "day": "Sat",
                        "high": "83",
                        "low": "57",
                        "text": "Sunny"
                    }, {
                        "code": "32",
                        "date": "24 Dec 2017",
                        "day": "Sun",
                        "high": "80",
                        "low": "63",
                        "text": "Sunny"
                    }, {
                        "code": "32",
                        "date": "25 Dec 2017",
                        "day": "Mon",
                        "high": "81",
                        "low": "59",
                        "text": "Sunny"
                    }, {
                        "code": "32",
                        "date": "26 Dec 2017",
                        "day": "Tue",
                        "high": "81",
                        "low": "61",
                        "text": "Sunny"
                    }, {
                        "code": "34",
                        "date": "27 Dec 2017",
                        "day": "Wed",
                        "high": "81",
                        "low": "62",
                        "text": "Mostly Sunny"
                    }, {
                        "code": "32",
                        "date": "28 Dec 2017",
                        "day": "Thu",
                        "high": "79",
                        "low": "60",
                        "text": "Sunny"
                    }],
                    "description": "<![CDATA[<img src=\"http://l.yimg.com/a/i/us/we/52/27.gif\"/>\n<BR />\n<b>Current Conditions:</b>\n<BR />Mostly Cloudy\n<BR />\n<BR />\n<b>Forecast:</b>\n<BR /> Tue - Mostly Sunny. High: 82Low: 62\n<BR /> Wed - Sunny. High: 81Low: 60\n<BR /> Thu - Sunny. High: 82Low: 58\n<BR /> Fri - Sunny. High: 82Low: 59\n<BR /> Sat - Sunny. High: 83Low: 57\n<BR />\n<BR />\n<a href=\"http://us.rd.yahoo.com/dailynews/rss/weather/Country__Country/*https://weather.yahoo.com/country/state/city-2295414/\">Full Forecast at Yahoo! Weather</a>\n<BR />\n<BR />\n<BR />\n]]>",
                    "guid": {
                        "isPermaLink": "false"
                    }
                }
            }
        }
    }
}