Forked from VerizonMediaOwner/weather_ydn_sample.java
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March 15, 2019 07:59
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Yahoo Weather API C# Example
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using System; | |
using System.Collections.Generic; | |
using System.IO; | |
using System.Linq; | |
using System.Net; | |
using System.Security.Cryptography; | |
using System.Text; | |
using System.Text.RegularExpressions; | |
using System.Web; | |
class Program | |
{ | |
static void Main(string[] args) | |
{ | |
const string appId = "8eqyZg6s"; | |
const string consumerKey = "dj0yJmk9dkw3YWVLTEdXUmNRJnM9Y29uc3VtZXJzZWNyZXQmc3Y9MCZ4PTM3"; | |
const string consumerSecret = "fd427dd3ec3da0046fbd78ac1444f1a660259c6d"; | |
const string url = "https://weather-ydn-yql.media.yahoo.com/forecastrss"; | |
long timeStamp = (int)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds; | |
byte[] nonce = new byte[32]; | |
Random rand = new Random(); | |
rand.NextBytes(nonce); | |
string oauthNonce = new string(Convert.ToBase64String(nonce).ToArray()); | |
oauthNonce = Regex.Replace(oauthNonce, @"[^0-9a-zA-Z]+", ""); | |
List<string> parameters = new List<string> | |
{ | |
"oauth_consumer_key=" + consumerKey, | |
"oauth_nonce=" + oauthNonce, | |
"oauth_signature_method=HMAC-SHA1", | |
"oauth_timestamp=" + timeStamp, | |
"oauth_version=1.0", | |
// Make sure value is encoded | |
"location=" + HttpUtility.UrlEncode("sunnyvale,ca", Encoding.UTF8), | |
"format=json" | |
}; | |
parameters.Sort(); | |
StringBuilder parametersList = new StringBuilder(); | |
for (int i = 0; i < parameters.Count; i++) | |
{ | |
parametersList.Append(((i > 0) ? "&" : "") + parameters[i]); | |
} | |
string signatureString = "GET&" + | |
HttpUtility.UrlEncode(url, Encoding.UTF8) + "&" + | |
HttpUtility.UrlEncode(parametersList.ToString(), Encoding.UTF8); | |
string signature = null; | |
try | |
{ | |
byte[] signingKey = Encoding.UTF8.GetBytes(consumerSecret); | |
HMACSHA1 hmac = new HMACSHA1(signingKey); | |
byte[] rawHmac = hmac.ComputeHash(Encoding.UTF8.GetBytes(signatureString)); | |
signature = HttpUtility.UrlEncode(Convert.ToBase64String(rawHmac), Encoding.UTF8); | |
} | |
catch (Exception) | |
{ | |
System.Diagnostics.Debug.WriteLine("Unable to append signature"); | |
Environment.Exit(0); | |
} | |
string authorizationLine = "OAuth " + | |
"oauth_consumer_key=\"" + consumerKey + "\", " + | |
"oauth_nonce=\"" + oauthNonce + "\", " + | |
"oauth_timestamp=\"" + timeStamp + "\", " + | |
"oauth_signature_method=\"HMAC-SHA1\", " + | |
"oauth_signature=\"" + signature + "\", " + | |
"oauth_version=\"1.0\""; | |
var request = (HttpWebRequest)WebRequest.Create(url + "?location=sunnyvale,ca&format=json"); | |
request.Headers.Add("Authorization", authorizationLine); | |
request.Headers.Add("Yahoo-App-Id", appId); | |
request.ContentType = "application/json"; | |
Console.WriteLine(request); | |
Console.ReadLine(); | |
var response = (HttpWebResponse)request.GetResponse(); | |
var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd(); | |
Console.WriteLine(responseString); | |
} | |
} |
Anyone, Please share Yahoo weather Sample project.
Hi all,
I am archiving this code. Yahoo has published C# code in their own docs. Please use it.
https://developer.yahoo.com/weather/documentation.html#oauth-csharp
Thanks.
Here is the complete example of Yahoo weather by location Name.
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unfortunately it doesn't work for me too!