How exactly do you use the BING REST api (specifically the ROUTES part) to get a driving distance in ASP.NET.
I have searched high and low on Google for this answer and none is forthcoming.
I have found url strings such as:
http://dev.virtualearth.net/REST/v1/Routes/Driving?waypoint.0=redmond&heading=90&waypoint.1=seattle&du=mi&key=BingMapsKey
That's great! But how to call it from ASP?
I have also found this code:
private void GetResponse(Uri uri, Action<HttpResponse> callback)
{
WebClient wc = new WebClient();
wc.OpenReadCompleted += (o, a) =>
{
if (callback != null)
{
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(HttpResponse));
callback(ser.ReadObject(a.Result) as HttpResponse);
}
};
wc.OpenReadAsync(uri);
}
Which is a "generic method to make web requests". But, again, how do you call it? I find it confusing that it doesn't require a return type.
In order to call it, I have found code like this:
string key = "YOUR_BING_MAPS_KEY or SESSION_KEY";
string query = "1 Microsoft Way, Redmond, WA";
Uri geocodeRequest = new Uri(string.Format("http://dev.virtualearth.net/REST/v1/Locations?q={0}&key={1}", query, key));
GetResponse(geocodeRequest, (x) =>
{
Console.WriteLine(x.ResourceSets[0].Resources.Length + " result(s) found.");
Console.ReadLine();
});
But when I add this to the project, I get every error under the sun coming up. So, I am stuck.
I am a total ASP beginner and haven't found any online documentation any help at all.
p.s. I do have a BING api key and do use it in the code above.
I am not an expert in this, but the below compiles for me. Also make sure to add the data constructs as mentioned in the BING documentation:
protected void Page_Load(object sender, EventArgs e)
{
string key = "YOUR KEY";
string query = "ADDRESS";
Uri geocodeRequest = new Uri(string.Format("http://dev.virtualearth.net/REST/v1/Locations?q={0}&key={1}", query, key));
GetResponse(geocodeRequest, (x) =>
{
Console.WriteLine(x.ResourceSets[0].Resources.Length + " result(s) found.");
Console.ReadLine();
});
}
Quoting from another stackoverflow question:
The bottom of the documentation you are using points to the Data contracts you need for the REST services which are available here: http://msdn.microsoft.com/en-us/library/jj870778.aspx
Simply create a empty C# file and copy in paste in the C# Data Contracts. Then add the namespace to this class:
using BingMapsRESTService.Common.JSON;
Related
If I recive a web site with this function I get the whole page, but without the ajax loaded values.
htmlDoc.LoadHtml(new WebClient().DownloadString(url));
Is it possible to load the web site like in gChrome with all values?
You can use a WebBrowser control to get and render the page. Unfortunately, the control uses Internet Explorer and you have to change a registry value in order to force it to use the latest version and even then the implementation is very brittle.
Another option is to take a standalone browser engine like WebKit and make it work in .NET. I found a page explaining how to do this, but it's pretty dated: http://webkitdotnet.sourceforge.net/basics.php
I worked on a little demo app to get the content and this is what I came up with:
class Program
{
static void Main(string[] args)
{
GetRenderedWebPage("https://siderite.dev", TimeSpan.FromSeconds(5), output =>
{
Console.Write(output);
File.WriteAllText("output.txt", output);
});
Console.ReadKey();
}
private static void GetRenderedWebPage(string url, TimeSpan waitAfterPageLoad, Action<string> callBack)
{
const string cEndLine= "All output received";
var sb = new StringBuilder();
var p = new PhantomJS();
p.OutputReceived += (sender, e) =>
{
if (e.Data==cEndLine)
{
callBack(sb.ToString());
} else
{
sb.AppendLine(e.Data);
}
};
p.RunScript(#"
var page = require('webpage').create();
page.viewportSize = { width: 1920, height: 1080 };
page.onLoadFinished = function(status) {
if (status=='success') {
setTimeout(function() {
console.log(page.content);
console.log('" + cEndLine + #"');
phantom.exit();
}," + waitAfterPageLoad.TotalMilliseconds + #");
}
};
var url = '" + url + #"';
page.open(url);", new string[0]);
}
}
This uses the PhantomJS "headless" browser by way of the wrapper NReco.PhantomJS which you can get through "reference NuGet package" directly from Visual Studio. I am sure it can be done better, but this is what I did today. You might want to take a look at the PhantomJS callbacks so you can properly debug what is going on. My example will wait forever if the URL doesn't work, for example. Here is a useful link: https://newspaint.wordpress.com/2013/04/25/getting-to-the-bottom-of-why-a-phantomjs-page-load-fails/
No its not possible in your example. Since it will load content as a string. You should render that string in "browser engine" or find any components which would do that for you.
I would suggest you to look into abotx they just announce this feature so maybe would be interesting for you but its not free.
Please bear with me as I am new to Silverlight. I need to write a web api wrapper (I've named it WebClientWrapper) which is supposed to consume rest services. The project uses Silverlight 5. I am facing many problems while writing such a wrapper. There are a lot of examples demonstrating rest service consumption in C#. But unfortunately none of them worked for me. It's been a challenge for me to get done with what I need. Below are my requirements:
1) UI should not freeze while I make any GET request,
2) Calling methods from WebClientWrapper should be as easier as possible.
3) .NET framework version of project should not be changed.
I tried following things so far:
1) Use of HttpClient. I referred this link: http://www.asp.net/web-api/overview/web-api-clients/calling-a-web-api-from-a-net-client. The problem with this approach is I cannot call ReadAsAsync method. Calling this method requires change in framework (i.e. replacing dlls or changing framework version) which is not feasible.
2) Use of WebClient. http://www.kastory.net/index.php?option=com_content&view=article&id=25:rest-web-service-in-c-with-silverlight-and-asp-net-web-api&catid=32:web-services&Itemid=130.
The problem with this is I will probably (not sure!) have to make changes in the way I call methods from WebClientWrapper. I am trying to accomplish calling method from WebClientWrapper something like this:
var appointments = WebClientWrapper.Get<Appointments>(new Dictionary<string, string>()
{
{"hospitalId", "19465654546"}
}, "appointment");
Below is the code snippet I tried in WebClientWrapper.
private const string BaseUrl = "http://localhost:63455/api";
private static WebClient GetClient()
{
int leadingInt = new Random().Next(10000, 99999);
int trailingInt = new Random().Next(1000, 9999);
string date = DateTime.Now.ToString("ddHHmmMMssMMyyyyyss");
string ticketString = string.Format("{0}{1}{2}", leadingInt, date, trailingInt);
var client = new WebClient();
client.Headers["Accept"] = ticketString;
client.Headers["UserAgent"] = "ReceptionistApp";
return client;
}
private static void DownloadCompletionHandler<T>(object sender, DownloadStringCompletedEventArgs e)
{
Encoding messageEncoding = Encoding.UTF8;
var serializer = new DataContractJsonSerializer(typeof (T));
var memoryStream = new MemoryStream(messageEncoding.GetBytes(e.Result));
var objectToReturn = (T) serializer.ReadObject(memoryStream);
}
public static T Get<T>(Dictionary<string, string> paramDictionary, string controller)
{
string absoluteUrl = BaseUrl + controller + "?";
absoluteUrl = paramDictionary.Aggregate(absoluteUrl,
(current, keyValuePair) => current + (keyValuePair.Key + "=" + keyValuePair.Value + "&"));
absoluteUrl = absoluteUrl.TrimEnd('&');
WebClient client = GetClient();
client.DownloadStringCompleted += DownloadCompletionHandler<T>;
client.DownloadStringAsync(new Uri(absoluteUrl));
}
Below are the things I want to mention regarding the code above:
1) As obvious, compiler throws error for the method Get<T> since I've not returned object of type T. How shall I get that object from DownloadStringAsync? I know I can use DownloadStringTaskAsync. But it is not available with the current framework. What changes do I have to make in my code so that I get appointments as shown in the Get<Appointments> method call?
2) DownloadCompletionHandler<T> is bound to return void but actually I want to return objectToReturn as shown in code.
Help will be greatly appreciated. Any new code snippets that will fulfill my requirements are welcome.
RestSharp helped me instead of WebClient.
I am working on a personal assistant for home automation and so far it has basic features such as searching wolfram alpha and pulling weather conditions/forecasts but I wan't to enable it to search for things on google and display the results on screen.
After searching around the community it seems the recommended way is to use the Google Search API (which has been replaced with Google Custom Search API. So I have looked at some examples and am able to get the data out into a data grid on the windows form however. I want to show clickable links. How can I do this? I already have an API key and CX to use with the code but cannot get the proper output.
GoogleSearch search = new GoogleSearch()
{
Key = "KEY HERE",
CX = "CX HERE"
};
search.SearchCompleted += (a, b) =>
{
this.DataGridResults.ItemsSource = b.Response.Items;
};
search.Search(search_query.Text);
So I solved this problem after working on it for a long time. Turns out I was just using the list the method returned wrong. I attached a link to the original post that gave me the method and my completed solution which just outputs the titles and HTML links in a text box. You can do whatever you like with them from there.
private void Button_Click_1(object sender, RoutedEventArgs e)
{
GoogleSearch search = new GoogleSearch()
{
Key = "API KEY HERE",
CX = "CX GOES HERE"
};
search.SearchCompleted += (a, b) =>
{
foreach (Item i in b.Response.Items)
{
results_box.Text = results_box.Text + Environment.NewLine + "Page Title: " + i.Title;
results_box.Text = results_box.Text + Environment.NewLine + "Link to Page " + i.Link;
};
};
search.Search(search_query.Text);
The method and original post can be found at http://kiwigis.blogspot.com/2011/03/google-custom-search-in-c.html
i need to make a ("webservice") c# app that can create/update/delete nodes for/from drupal 7 using xmlrpc. everytime i run my app i get errors from the xmlrpc files(library). I tried to find code/documentation for C# using xmlrpc to connect to drupal, but in vain.
I would be nice if you could point me in the right direction, or share some c# code with me.
{
[XmlRpcUrl("http://testing/testserver")]
public interface IDrupalServices
{
[XmlRpcMethod("node.get")]
XmlRpcStruct NodeLoad(int nid, string[] field);
[XmlRpcMethod("node.save")]
void NodeSave(XmlRpcStruct node);
}
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
IDrupalServices drupal = XmlRpcProxyGen.Create<IDrupalServices>();
int nid = 227;
string[] fields = new string[] { };
XmlRpcStruct node = drupal.NodeLoad(nid, fields);
string teaser = node["teaser"].ToString();
welcomeTxt.Text = teaser;
}
private void button1_Click(object sender, EventArgs e)
{
string title = txtTitle.Text;
string body = txtBody.Text;
IDrupalServices drupal = XmlRpcProxyGen.Create<IDrupalServices>();
XmlRpcStruct node = new XmlRpcStruct();
node["id"] = 1001;
node["title"] = title;
node["body"] = body;
node["teaser"] = body;
node["format"] = 1;
node["type"] = "webservice";
node["promote"] = false;
drupal.NodeSave(node);
MessageBox.Show("The post was been created!");
}
}
}
After i run this i get the error: Server returned a fault exception: [-32601] Server error. Requested method node.get not specified. - in the XmlRpcSerializer.cs
Thank you,
Florin
If you're using Drupal 7 you must be using Services 3 which doesn't have a node.get method (or node.save as it happens). They've been replaced with node.retrieve and node.create & node.update respectively.
You can view all of the available methods in the resources/node_resource.inc file in the Services module folder.
UPDATE
Internally the node is submitted using drupal_execute which is the function used to submit a form. Since the body is a field in Drupal it's expected to be a multi-dimensional array in this format (PHP version):
$data["body"][$language][0]["value"]
The $language will either be the specific language for the node, or und for undefined language (unless you're dealing with a multi-lingual site und is usually the way to go). You'd need to build an array similar to that in your C# code and Drupal should save it.
ANOTHER UPDATE
The Java XML-RPC client example for Services uses a HashMap type to do this so my best guess is you could use a Dictionary (albeit one that seems unnecessarily complicated):
var innerValue = new Dictionary<string, string>();
innerValue.Add("value", txtBody.Text);
var language = new Dictionary<int, Dictionary<string, string>>();
language.Add(0, innerValue);
var body = new Dictionary<string, Dictionary<int, Dictionary<string, string>>>();
body.Add("und", language);
node["body"] = body;
It's been a few years since I've coded in C# so forgive any errors in there. Also I'm pretty sure it could be declared more efficiently but I've forgotten most of the language to be honest!
Jan's answer is not quite right. If you are using the cook xmlrpc library all you would need to do is this:
XmlRpcStruct postStruct = new XmlRpcStruct();
postStruct.Add("type", "article");
postStruct.Add("title", "wohoo another test");
XmlRpcStruct postBodyStructParams = new XmlRpcStruct();
postBodyStructParams.Add("value", "My body yaaay");
postBodyStructParams.Add("format", "filtered_html");
XmlRpcStruct[] postBodyStructParamsArr = new XmlRpcStruct[1];
postBodyStructParamsArr[0] = postBodyStructParams;
XmlRpcStruct postBodyStruct = new XmlRpcStruct();
postBodyStruct.Add("und", postBodyStructParamsArr);
postStruct.Add("body", postBodyStruct);
Unfortunately, the body params need to be an array of struct under the "und" key with only one value. I blame this on the sloppiness of the drupal xmlrpc API.
I am writing a test app which will simply ask the user to login to facebook via a webbrowser control. Then on the Navigated event a message box will appear relaying the user name of the user. The example I have been following uses a a FacebookClient.Get() method and so do many other examples on the net. My problem is that the FacebookClient doesn't even contain a Get().
I am using C#4.0, and I referenced the Facebook C# SDK from NuGet.
private void wb_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e)
{
FacebookOAuthResult result;
if (FacebookOAuthResult.TryParse(e.Uri, out result))
{
if (result.IsSuccess)
{
var accesstoken = result.AccessToken;
var fb = new FacebookClient(accesstoken);
var _result = (IDictionary<string, object>)fb.Get("/me");
var name = (string)_result["name"];
MessageBox.Show("Hi " + name);
}
else
{
var errorDescription = result.ErrorDescription;
var errorReason = result.ErrorReason;
}
}
}
The Facebook C# SDK isn't really optimised for WP7, I recommend using the facebook API without going through the sdk c#