I have created a web API controller and am trying to post data to my database. When I test the API in POSTMAN, I get a 200 OK Result but a false return for body.
I have tried changing from [FormBody] instead but that doesn't work either.
I have added the method as a Boolean to check but I just receive false.
Here's an actual link to a published api:
Add API and All data
Here's what I've tried in POSTMAN using Body -> raw -> JSON/Application
{
CityName: "Test1",
State: "PA",
Population: "0",
MHouseholdIncome: "0",
POwnerRenter: "0",
MHomeValue: "0",
MAge: "0",
UnemploymentRate: "0",
CrimeIndex: "0"
}
Here's my controller:
// POST: api/Cities/AddCity
[HttpPost()]
[HttpPost("AddCity")]
public Boolean AddCity([FromBody]City city)
{
if (city != null)
{
DBConnect objDB = new DBConnect();
SqlCommand objCmd = new SqlCommand();
objCmd.CommandType = CommandType.StoredProcedure;
objCmd.CommandText = "AddCity";
objCmd.Parameters.AddWithValue("#theCity", city.CityName);
objCmd.Parameters.AddWithValue("#theState", city.State);
objCmd.Parameters.AddWithValue("#thePopulation", city.Population);
objCmd.Parameters.AddWithValue("#theIncome", city.MHouseholdIncome);
objCmd.Parameters.AddWithValue("#theOwner", city.POwnerRenter);
objCmd.Parameters.AddWithValue("#theHomeValue", city.MHomeValue);
objCmd.Parameters.AddWithValue("#theMedianAge", city.MAge);
objCmd.Parameters.AddWithValue("#theUnemploymentRate", city.UnemploymentRate);
objCmd.Parameters.AddWithValue("#theCrime", city.CrimeIndex);
int value = objDB.DoUpdateUsingCmdObj(objCmd);
if (value > 0)
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
Here's my code:
protected void btnAdd_Click(object sender, EventArgs e)
{
City city = new City();
city.CityName = txtCity.Text;
city.State = ddStates.SelectedValue;
city.Population = int.Parse(txtPopulation.Text);
city.MHouseholdIncome = float.Parse(txtHouseholdIncome.Text);
city.POwnerRenter = float.Parse(txtOwnerRenter.Text);
city.MHomeValue = float.Parse(txtHomeValue.Text);
city.MAge = float.Parse(txtAge.Text);
city.UnemploymentRate = float.Parse(txtUnemploymentRate.Text);
city.CrimeIndex = float.Parse(txtCrimeIndex.Text);
JavaScriptSerializer js = new JavaScriptSerializer();
String jsonCity = js.Serialize(city);
try
{
WebRequest request = WebRequest.Create(webApiUrl + "AddCity/");
request.Method = "POST";
request.ContentLength = jsonCity.Length;
request.ContentType = "application/json";
StreamWriter writer = new StreamWriter(request.GetRequestStream());
writer.Write(jsonCity);
writer.Flush();
writer.Close();
WebResponse response = request.GetResponse();
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
String data = reader.ReadToEnd();
reader.Close();
response.Close();
if (data == "true")
{
string msg = "The city was successfully added to the database.";
ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + msg + "');", true);
}
else
{
string msg = "A problem occured while adding the city to the database. The data was not recorded.";
ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + msg + "');", true);
}
}
catch (Exception ex)
{
string msg = "Error:" + ex.Message;
ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + msg + "');", true);
}
}
}
City.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace CityLibrary
{
public class City
{
public int CityID { get; set; }
public string CityName { get; set; }
public string State { get; set; }
public int Population { get; set; }
public float MHouseholdIncome { get; set; }
public float POwnerRenter { get; set; }
public float MHomeValue { get; set; }
public float MAge { get; set; }
public float UnemploymentRate { get; set; }
public float CrimeIndex { get; set; }
public City()
{
}
public City(int id, string name, string state, int ppl, float income,
float owner, float home, float age, float rate, float crime)
{
this.CityID = id;
this.CityName = name;
this.State = state;
this.Population = ppl;
this.MHouseholdIncome = income;
this.POwnerRenter = owner;
this.MHomeValue = home;
this.MAge = age;
this.UnemploymentRate = rate;
this.CrimeIndex = crime;
}
}
}
I expect the data to be added to the actual database.
Check the objCmd for null, and if not, check the DoUpdateUsingCmdObj method
Related
I've probably made a really silly mistake, I am able to make a successful POST request to server. I am also able to get a response from server 201 as well as being able to view the json("requestid"). I am able to deserialize the JSON and parse requestid as a string (public string requestID). I have a timer (timer1) set up to poll the server every 1 second, the polling should start successfully if 201 created and does. However the problem I am having is that it does not include the requestid. Would someone be able to advise and tell me where I had gone wrong please?
namespace RestAPI
{
public enum httpVerb
{
GET,
POST,
PUT,
DELETE
}
class RESTAPI
{
public string endPoint { get; set; }
public httpVerb httpMethod { get; set; }
public string userPassword { get; set; }
public int sendAmount { get; set; }
public string location { get; set; }
public string requestId { get; set; }
public RESTAPI()
{
endPoint = string.Empty;
httpMethod = httpVerb.GET;
userPassword = string.Empty;
//requestId = string.Empty;
}
public string makeRequest()
{
string strResponseValue = string.Empty;
string result = string.Empty;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(endPoint);
request.Method = httpMethod.ToString();
request.ContentType = "application/json";
request.Accept = "application/connect.v1+json";
String username = "mokhan";
String encoded = System.Convert.ToBase64String(System.Text.Encoding.GetEncoding("ISO-8859-1").GetBytes(username + ":" + userPassword));
request.Headers.Add("Authorization", "Basic " + encoded);
if(httpMethod == httpVerb.POST)
{
using (var streamWriter = new StreamWriter(request.GetRequestStream()))
{
string json = "{\"transactionType\":\"SALE\"," + "\"amount\":" + sendAmount + "," +
"\"currency\":\"GBP\"}";
streamWriter.Write(json);
streamWriter.Flush();
streamWriter.Close();
}
HttpWebResponse responseback = (HttpWebResponse)request.GetResponse();
//string result;
using (StreamReader rdr = new StreamReader(responseback.GetResponseStream()))
{
result = rdr.ReadToEnd();
}
if (responseback.StatusCode == HttpStatusCode.Created)
{
dynamic jsonObj = JsonConvert.DeserializeObject(result);
requestId = jsonObj.requestId.ToString();
return requestId;
}
return result;
}
HttpWebResponse response = null;
try
{
response = (HttpWebResponse)request.GetResponse();
using (Stream responseStream = response.GetResponseStream())
{
if (responseStream != null)
{
using (StreamReader reader = new StreamReader(responseStream))
{
strResponseValue = reader.ReadToEnd();
}
}
}
}
catch (Exception ex)
{
}
finally
{
if (response != null)
{
((IDisposable)response).Dispose();
}
}
return strResponseValue;
}
}
}
This code below shows my POST and GET requests to server, I have added the timer method to start in my POST request after I get a response and have added the code for polling in my timer method. I have also set string transactionid = rclient.requestId; and the called on rclient.endPoint = "https://" + txtBox.Text + "/pac" + "/terminals/" + txtBox3.Text + "/transactions/" + transactionid; to poll the server every 1 second but for some reason it's not picking up transactionid.
namespace RestAPI
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void go_Click(object sender, EventArgs e)
{
RESTAPI rclient = new RESTAPI();
rclient.endPoint = "https://" + txtBox.Text + "/pac" + "/terminals/" + txtBox3.Text;
rclient.userPassword = txtbox2.Text;
debugOutput("REQUEST SENT");
string strResponse = string.Empty;
strResponse = rclient.makeRequest();
debugOutput(strResponse);
}
private void debugOutput(string strDebugText)
{
try
{
System.Diagnostics.Debug.Write(strDebugText + Environment.NewLine);
txtBoxResponse.Text = txtBoxResponse.Text + strDebugText + Environment.NewLine;
txtBoxResponse.SelectionStart = txtBoxResponse.TextLength;
txtBoxResponse.ScrollToCaret();
}
catch (Exception ex)
{
System.Diagnostics.Debug.Write(ex.Message, ToString() + Environment.NewLine);
}
}
private void txtBox_TextChanged(object sender, EventArgs e)
{
}
private void Test_Click(object sender, EventArgs e)
{
RESTAPI rclient = new RESTAPI();
rclient.httpMethod = httpVerb.POST;
rclient.sendAmount = Convert.ToInt32(amount.Text);
rclient.endPoint = "https://" + txtBox.Text + "/pac" + "/terminals/" + txtBox3.Text + "/transactions";
rclient.userPassword = txtbox2.Text;
debugOutput("REQUEST SENT");
string strResponse = string.Empty;
strResponse = rclient.makeRequest();
debugOutput(strResponse);
timer1.Start();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void timer1_Tick(object sender, EventArgs e)
{
RESTAPI rclient = new RESTAPI();
rclient.httpMethod = httpVerb.GET;
string transactionid = rclient.requestId;
rclient.endPoint = "https://" + txtBox.Text + "/pac" + "/terminals/" + txtBox3.Text + "/transactions/" + transactionid;
debugOutput("REQUEST SENT");
string strResponse = string.Empty;
strResponse = rclient.makeRequest();
debugOutput(strResponse);
}
}
}
Just solved the issue, in my public class RESTAPI, i un-commented this
//requestId = string.Empty;
once done, i was able to pick up the request ID as a string and then call it in my timer
string transactionid = rclient.requestId;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Globalization;
using System.Net;
using System.Security.Cryptography;
using System.Text;
using System.IO;
using Newtonsoft.Json;
using System.Net.Http;
public partial class _Default : System.Web.UI.Page
{
protected string googleplus_client_id = "clientid";
protected string googleplus_client_sceret = "id";
protected string googleplus_redirect_url="http://localhost"; // Replace this with your Redirect URL; Your Redirect URL from your developer.google application should match this URL.
protected string Parameters;
protected void Page_Load(object sender, EventArgs e)
{
if (Session.Contents.Count > 0)
{
if (Session["loginWith"] != null)
{
if (Session["loginWith"].ToString() == "google")
{
try
{
var url = Request.Url.Query;
if (url != "")
{
string queryString = url.ToString();
char[] delimiterChars = { '=' };
string[] words = queryString.Split(delimiterChars);
string code = words[1];
if (code != null)
{
//get the access token
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create("https://accounts.google.com/o/oauth2/token");
webRequest.Method = "POST";
Parameters = "code=" + code + "&client_id=" + googleplus_client_id + "&client_secret=" + googleplus_client_sceret + "&redirect_uri=" + googleplus_redirect_url + "&grant_type=authorization_code";
byte[] byteArray = Encoding.UTF8.GetBytes(Parameters);
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.ContentLength = byteArray.Length;
Stream postStream = webRequest.GetRequestStream();
// Add the post data to the web request
postStream.Write(byteArray, 0, byteArray.Length);
postStream.Close();
WebResponse response = webRequest.GetResponse();
postStream = response.GetResponseStream();
StreamReader reader = new StreamReader(postStream);
string responseFromServer = reader.ReadToEnd();
GooglePlusAccessToken serStatus = JsonConvert.DeserializeObject<GooglePlusAccessToken>(responseFromServer);
if (serStatus != null)
{
string accessToken = string.Empty;
accessToken = serStatus.access_token;
if (!string.IsNullOrEmpty(accessToken))
{
// getgoogleplususerdataSer(accessToken);
}
else
{ }
}
else
{ }
}
else
{ }
}
}
catch (Exception ex)
{
//throw new Exception(ex.Message, ex);
Response.Redirect("index.aspx");
}
}
}
}
}
protected void Button1_Click(object sender, EventArgs e)
{
var Googleurl = "https://accounts.google.com/o/oauth2/auth?response_type=code&redirect_uri=" + googleplus_redirect_url + "&scope=https://www.googleapis.com/auth/userinfo.email%20https://www.googleapis.com/auth/userinfo.profile&client_id=" + googleplus_client_id;
Session["loginWith"] = "google";
Response.Redirect(Googleurl);
}
public class GooglePlusAccessToken
{
public string access_token { get; set; }
public string token_type { get; set; }
public int expires_in { get; set; }
public string id_token { get; set; }
public string refresh_token { get; set; }
}
private async void getgoogleplususerdataSer(string access_token)
{
try
{
HttpClient client = new HttpClient();
var urlProfile = "https://www.googleapis.com/oauth2/v1/userinfo?access_token=" + access_token;
client.CancelPendingRequests();
HttpResponseMessage output = await client.GetAsync(urlProfile);
if (output.IsSuccessStatusCode)
{
string outputData = await output.Content.ReadAsStringAsync();
GoogleUserOutputData serStatus = JsonConvert.DeserializeObject<GoogleUserOutputData>(outputData);
if (serStatus != null)
{
// You will get the user information here.
}
}
}
catch (Exception ex)
{
//catching the exception
}
}
}
public class GoogleUserOutputData
{
public string id { get; set; }
public string name { get; set; }
public string given_name { get; set; }
public string email { get; set; }
public string picture { get; set; }
}
I don't know from where i can store the user information in my table,
actually I don't know about google authentication and i find ths=is code on stackoverflow
I just want to store all the information in a table and if a user is logged in for the first time the page should be redirected to new user page and if the user is old user the page should redirect to welcome page
To start with, I definitely agree that Google's documentation is a murky business.
There are a couple of different ways in which you can validate the integrity of the ID token on the server side (btw this is the page you're looking for):
"Manually" - constantly download Google's public keys, verify signature and then each and every field, including the iss one; the main advantage (albeit a small one in my opinion) I see here is that you can minimize the number of requests sent to Google).
"Automatically" - do a GET on Google's endpoint to verify this token
https://www.googleapis.com/oauth2/v3/tokeninfo?id_token={0}
Using a Google API Client Library - like the official one.
Here's how this could look:
private const string GoogleApiTokenInfoUrl = "https://www.googleapis.com/oauth2/v3/tokeninfo?id_token={0}";
public ProviderUserDetails GetUserDetails(string providerToken)
{
var httpClient = new MonitoredHttpClient();
var requestUri = new Uri(string.Format(GoogleApiTokenInfoUrl, providerToken));
HttpResponseMessage httpResponseMessage;
try
{
httpResponseMessage = httpClient.GetAsync(requestUri).Result;
}
catch (Exception ex)
{
return null;
}
if (httpResponseMessage.StatusCode != HttpStatusCode.OK)
{
return null;
}
var response = httpResponseMessage.Content.ReadAsStringAsync().Result;
var googleApiTokenInfo = JsonConvert.DeserializeObject<GoogleApiTokenInfo>(response);
if (!SupportedClientsIds.Contains(googleApiTokenInfo.aud))
{
Log.WarnFormat("Google API Token Info aud field ({0}) not containing the required client id", googleApiTokenInfo.aud);
return null;
}
return new ProviderUserDetails
{
Email = googleApiTokenInfo.email,
FirstName = googleApiTokenInfo.given_name,
LastName = googleApiTokenInfo.family_name,
Locale = googleApiTokenInfo.locale,
Name = googleApiTokenInfo.name,
ProviderUserId = googleApiTokenInfo.sub
};
}
I am having a problem with Google Cloud Printing, it always throw an error when I submit a print job using C#:
The remote server returned an error: (426) Requires HTTPS..
I even try it on http://www.google.com/cloudprint/simulate.html but the same problem.
Any way to workaround this or am I missing something?
This is an example of the HTTP POST message which finally got the Submit operation working.
POST http://www.google.com/cloudprint/submit?printerid=<printerid>&output=json HTTP/1.1
Host: www.google.com
Content-Length: 44544
X-CloudPrint-Proxy: Google-JS
Content-Type: multipart/form-data; boundary=----CloudPrintFormBoundaryqeq6g6ncj5v7
------CloudPrintFormBoundaryqeq6g6ncj5v7
Content-Disposition: form-data; name="capabilities"
{"capabilities":[{}]}
------CloudPrintFormBoundaryqeq6g6ncj5v7
Content-Disposition: form-data; name="contentType"
dataUrl
------CloudPrintFormBoundaryqeq6g6ncj5v7
Content-Disposition: form-data; name="title"
zodiac-pig-pic.jpg
------CloudPrintFormBoundaryqeq6g6ncj5v7
Content-Disposition: form-data; name="content"
data:image/jpeg;base64,JVBERi0xLjQKJeHp69MKMiAwIG...2NgolJUVPRg==
------CloudPrintFormBoundaryqeq6g6ncj5v7--
This is the complete code if it helps:
using System;
using System.Configuration;
using System.Diagnostics;
using System.IO;
using System.Net;
using System.Runtime.Serialization.Json;
using System.Text;
using GoogleCloudPrintServices.DTO;
namespace GoogleCloudPrintServices.Support
{
public class GoogleCloudPrint
{
public string UserName { get; set; }
public string Password { get; set; }
public string Source { get; set; }
private const int ServiceTimeout = 10000;
public GoogleCloudPrint (String source)
{
Source = source;
}
public CloudPrintJob PrintDocument (string printerId, string title, byte[] document, String mimeType)
{
try
{
string authCode;
if (!Authorize (out authCode))
return new CloudPrintJob { success = false };
var b64 = Convert.ToBase64String (document);
var request = (HttpWebRequest)WebRequest.Create ("http://www.google.com/cloudprint/submit?output=json&printerid=" + printerId);
request.Method = "POST";
// Setup the web request
SetupWebRequest (request);
// Add the headers
request.Headers.Add ("X-CloudPrint-Proxy", Source);
request.Headers.Add ("Authorization", "GoogleLogin auth=" + authCode);
var p = new PostData ();
p.Params.Add (new PostDataParam { Name = "printerid", Value = printerId, Type = PostDataParamType.Field });
p.Params.Add (new PostDataParam { Name = "capabilities", Value = "{\"capabilities\":[{}]}", Type = PostDataParamType.Field });
p.Params.Add (new PostDataParam { Name = "contentType", Value = "dataUrl", Type = PostDataParamType.Field });
p.Params.Add (new PostDataParam { Name = "title", Value = title, Type = PostDataParamType.Field });
p.Params.Add (new PostDataParam
{
Name = "content",
Type = PostDataParamType.Field,
Value = "data:" + mimeType + ";base64," + b64
});
var postData = p.GetPostData ();
Trace.WriteLine (postData);
byte[] data = Encoding.UTF8.GetBytes (postData);
request.ContentType = "multipart/form-data; boundary=" + p.Boundary;
Stream stream = request.GetRequestStream ();
stream.Write (data, 0, data.Length);
stream.Close ();
// Get response
var response = (HttpWebResponse)request.GetResponse ();
var responseContent = new StreamReader (response.GetResponseStream ()).ReadToEnd ();
var serializer = new DataContractJsonSerializer (typeof (CloudPrintJob));
var ms = new MemoryStream (Encoding.Unicode.GetBytes (responseContent));
var printJob = serializer.ReadObject (ms) as CloudPrintJob;
return printJob;
}
catch (Exception ex)
{
return new CloudPrintJob { success = false, message = ex.Message };
}
}
public CloudPrinters Printers
{
get
{
var printers = new CloudPrinters ();
string authCode;
if (!Authorize (out authCode))
return new CloudPrinters { success = false };
try
{
var request = (HttpWebRequest)WebRequest.Create ("http://www.google.com/cloudprint/search?output=json");
request.Method = "POST";
// Setup the web request
SetupWebRequest (request);
// Add the headers
request.Headers.Add ("X-CloudPrint-Proxy", Source);
request.Headers.Add ("Authorization", "GoogleLogin auth=" + authCode);
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = 0;
var response = (HttpWebResponse)request.GetResponse ();
var responseContent = new StreamReader (response.GetResponseStream ()).ReadToEnd ();
var serializer = new DataContractJsonSerializer (typeof (CloudPrinters));
var ms = new MemoryStream (Encoding.Unicode.GetBytes (responseContent));
printers = serializer.ReadObject (ms) as CloudPrinters;
return printers;
}
catch (Exception)
{
return printers;
}
}
}
private bool Authorize (out string authCode)
{
var result = false;
authCode = "";
var queryString = String.Format ("https://www.google.com/accounts/ClientLogin?accountType=HOSTED_OR_GOOGLE&Email={0}&Passwd={1}&service=cloudprint&source={2}",
UserName, Password, Source);
var request = (HttpWebRequest)WebRequest.Create (queryString);
// Setup the web request
SetupWebRequest (request);
var response = (HttpWebResponse)request.GetResponse ();
var responseContent = new StreamReader (response.GetResponseStream ()).ReadToEnd ();
var split = responseContent.Split ('\n');
foreach (var s in split)
{
var nvsplit = s.Split ('=');
if (nvsplit.Length == 2)
{
if (nvsplit[0] == "Auth")
{
authCode = nvsplit[1];
result = true;
}
}
}
return result;
}
private static void SetupWebRequest (HttpWebRequest webRequest)
{
// Get the details
var appSettings = ConfigurationManager.AppSettings;
// Create some credentials
if (!String.IsNullOrWhiteSpace (appSettings["ProxyUsername"]))
{
var cred = new NetworkCredential (appSettings["ProxyUsername"], appSettings["ProxyPassword"],
appSettings["ProxyDomain"]);
// Set the credentials
webRequest.Credentials = cred;
webRequest.Proxy = WebRequest.DefaultWebProxy;
webRequest.Proxy.Credentials = cred;
}
// Set the timeout
webRequest.Timeout = ServiceTimeout;
webRequest.ServicePoint.ConnectionLeaseTimeout = ServiceTimeout;
webRequest.ServicePoint.MaxIdleTime = ServiceTimeout;
// Turn off the 100's
webRequest.ServicePoint.Expect100Continue = false;
}
}
}
using System.Runtime.Serialization;
namespace GoogleCloudPrintServices.DTO
{
[DataContract]
public class CloudPrinter
{
[DataMember (Order = 0)]
public string id { get; set; }
[DataMember (Order = 1)]
public string name { get; set; }
[DataMember (Order = 2)]
public string description { get; set; }
[DataMember (Order = 3)]
public string proxy { get; set; }
[DataMember (Order = 4)]
public string status { get; set; }
[DataMember (Order = 5)]
public string capsHash { get; set; }
[DataMember (Order = 6)]
public string createTime { get; set; }
[DataMember (Order = 7)]
public string updateTime { get; set; }
[DataMember (Order = 8)]
public string accessTime { get; set; }
[DataMember (Order = 9)]
public bool confirmed { get; set; }
[DataMember (Order = 10)]
public int numberOfDocuments { get; set; }
[DataMember (Order = 11)]
public int numberOfPages { get; set; }
}
}
using System.Collections.Generic;
using System.Runtime.Serialization;
namespace GoogleCloudPrintServices.DTO
{
[DataContract]
public class CloudPrinters
{
[DataMember (Order = 0)]
public bool success { get; set; }
[DataMember (Order = 1)]
public List<CloudPrinter> printers { get; set; }
}
}
using System.Runtime.Serialization;
namespace GoogleCloudPrintServices.DTO
{
[DataContract]
public class CloudPrintJob
{
[DataMember (Order = 0)]
public bool success { get; set; }
[DataMember (Order = 1)]
public string message { get; set; }
}
}
using System;
using System.Collections.Generic;
using System.Text;
namespace GoogleCloudPrintServices.Support
{
internal class PostData
{
private const String CRLF = "\r\n";
public string Boundary { get; set; }
private List<PostDataParam> _mParams;
public List<PostDataParam> Params
{
get { return _mParams; }
set { _mParams = value; }
}
public PostData ()
{
// Get boundary, default is --AaB03x
Boundary = "----CloudPrintFormBoundary" + DateTime.UtcNow;
// The set of parameters
_mParams = new List<PostDataParam> ();
}
public string GetPostData ()
{
var sb = new StringBuilder ();
foreach (var p in _mParams)
{
sb.Append ("--" + Boundary).Append (CRLF);
if (p.Type == PostDataParamType.File)
{
sb.Append (string.Format ("Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"", p.Name, p.FileName)).Append (CRLF);
sb.Append ("Content-Type: ").Append (p.FileMimeType).Append (CRLF);
sb.Append ("Content-Transfer-Encoding: base64").Append (CRLF);
sb.Append ("").Append (CRLF);
sb.Append (p.Value).Append (CRLF);
}
else
{
sb.Append (string.Format ("Content-Disposition: form-data; name=\"{0}\"", p.Name)).Append (CRLF);
sb.Append ("").Append (CRLF);
sb.Append (p.Value).Append (CRLF);
}
}
sb.Append ("--" + Boundary + "--").Append (CRLF);
return sb.ToString ();
}
}
public enum PostDataParamType
{
Field,
File
}
public class PostDataParam
{
public string Name { get; set; }
public string FileName { get; set; }
public string FileMimeType { get; set; }
public string Value { get; set; }
public PostDataParamType Type { get; set; }
public PostDataParam ()
{
FileMimeType = "text/plain";
}
}
}
Just use HTTPS instead of HTTP. Some GCP API has transferred to HTTPS.
I have the following code:
[WebMethod]
public bool AddUser(long warnId, double longitude, double latitude)
{
try
{
string jsonFeature = string.Empty;
jsonFeature += "[{'geometry': {'x': " + longitude + ",'y': " + latitude +
",'spatialReference': {'wkid': 4326}},'attributes': {'UID': '";
jsonFeature += warnId + "','Latitude': '" + latitude + "','Longitude': '" + longitude + "'}}]";
string reqURL = System.Configuration.ConfigurationManager.AppSettings["WARNURL"] + "addFeatures";
using (System.Net.WebClient client = new System.Net.WebClient())
{
client.Headers["Content-type"] = "application/x-www-form-urlencoded";
client.Encoding = System.Text.Encoding.UTF8;
var collection = new System.Collections.Specialized.NameValueCollection();
collection.Add("f", "json");
collection.Add("features", jsonFeature);
byte[] response = client.UploadValues(reqURL, "POST", collection);
MemoryStream stream = new MemoryStream(response);
StreamReader reader = new StreamReader(stream);
string aRespStr = reader.ReadToEnd();
JavaScriptSerializer jss = new JavaScriptSerializer();
AddResult addResult = jss.Deserialize<AddResult>(aRespStr);
return aRespStr.Contains("true") && aRespStr.Contains("success");
}
}
catch(Exception e)
{
string message = e.Message;
return false;
}
}
when I run it the string aRespStr is:
"{\"addResults\":[{\"objectId\":28,\"globalId\":\"{740490C6-77EE-4AC0-9561-5EBAACE3A0A7}
\",\"success\":true}]}"
I created the following classes to hold the object once I deserialize it:
public class Error
{
public int code { get; set; }
public string description { get; set; }
}
public class AddResult
{
public int objectId { get; set; }
public object globalId { get; set; }
public bool success { get; set; }
public Error error { get; set; }
}
public class RootObject
{
public List<AddResult> addResults { get; set; }
}
but when I run the code the addResult object contains the default object values not the json object values.
The api for this particular response is here:
http://help.arcgis.com/en/arcgisserver/10.0/apis/rest/fsadd.html
any help on getting this to work is greatly appreciated
Try this
RootObject addResults=jss.Deserialize<RootObject>(aRespStr);
or similary you can try this
List<AddResult> addResults = jss.Deserialize<List<AddResult>>(aRespStr);
as you are returning list of AddResult in your json Response.
And Change the content type to application/json
change
client.Headers["Content-type"] = "application/x-www-form-urlencoded";
to
client.Headers["Content-type"] = "Application/json";
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I have an ASP.NET website written in C#.
On this site I need to automatically show a start page based on the user's location.
Can I get name of user's city based on the IP address of the user ?
You need an IP-address-based reverse geocoding API... like the one from ipdata.co. I'm sure there are plenty of options available.
You may want to allow the user to override this, however. For example, they could be on a corporate VPN which makes the IP address look like it's in a different country.
Use http://ipinfo.io , You need to pay them if you make more than 1000 requests per day.
The code below requires the Json.NET package.
public static string GetUserCountryByIp(string ip)
{
IpInfo ipInfo = new IpInfo();
try
{
string info = new WebClient().DownloadString("http://ipinfo.io/" + ip);
ipInfo = JsonConvert.DeserializeObject<IpInfo>(info);
RegionInfo myRI1 = new RegionInfo(ipInfo.Country);
ipInfo.Country = myRI1.EnglishName;
}
catch (Exception)
{
ipInfo.Country = null;
}
return ipInfo.Country;
}
And the IpInfo Class I used:
public class IpInfo
{
[JsonProperty("ip")]
public string Ip { get; set; }
[JsonProperty("hostname")]
public string Hostname { get; set; }
[JsonProperty("city")]
public string City { get; set; }
[JsonProperty("region")]
public string Region { get; set; }
[JsonProperty("country")]
public string Country { get; set; }
[JsonProperty("loc")]
public string Loc { get; set; }
[JsonProperty("org")]
public string Org { get; set; }
[JsonProperty("postal")]
public string Postal { get; set; }
}
Following Code work for me.
Update:
As I am calling a free API request (json base ) IpStack.
public static string CityStateCountByIp(string IP)
{
//var url = "http://freegeoip.net/json/" + IP;
//var url = "http://freegeoip.net/json/" + IP;
string url = "http://api.ipstack.com/" + IP + "?access_key=[KEY]";
var request = System.Net.WebRequest.Create(url);
using (WebResponse wrs = request.GetResponse())
{
using (Stream stream = wrs.GetResponseStream())
{
using (StreamReader reader = new StreamReader(stream))
{
string json = reader.ReadToEnd();
var obj = JObject.Parse(json);
string City = (string)obj["city"];
string Country = (string)obj["region_name"];
string CountryCode = (string)obj["country_code"];
return (CountryCode + " - " + Country +"," + City);
}}}
return "";
}
Edit :
First, it was http://freegeoip.net/ now it's https://ipstack.com/ (and maybe now it's a paid service- Free Up to 10,000 request/month)
IPInfoDB has an API that you can call in order to find a location based on an IP address.
For "City Precision", you call it like this (you'll need to register to get a free API key):
http://api.ipinfodb.com/v2/ip_query.php?key=<your_api_key>&ip=74.125.45.100&timezone=false
Here's an example in both VB and C# that shows how to call the API.
I have tried using http://ipinfo.io and this JSON API works perfectly. First, you need to add the below mentioned namespaces:
using System.Linq;
using System.Web;
using System.Web.UI.WebControls;
using System.Net;
using System.IO;
using System.Xml;
using System.Collections.Specialized;
For localhost it will give dummy data as AU. You can try hardcoding your IP and get results:
namespace WebApplication4
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string VisitorsIPAddr = string.Empty;
//Users IP Address.
if (HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null)
{
//To get the IP address of the machine and not the proxy
VisitorsIPAddr = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
}
else if (HttpContext.Current.Request.UserHostAddress.Length != 0)
{
VisitorsIPAddr = HttpContext.Current.Request.UserHostAddress;`enter code here`
}
string res = "http://ipinfo.io/" + VisitorsIPAddr + "/city";
string ipResponse = IPRequestHelper(res);
}
public string IPRequestHelper(string url)
{
string checkURL = url;
HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();
StreamReader responseStream = new StreamReader(objResponse.GetResponseStream());
string responseRead = responseStream.ReadToEnd();
responseRead = responseRead.Replace("\n", String.Empty);
responseStream.Close();
responseStream.Dispose();
return responseRead;
}
}
}
I was able to achieve this in ASP.NET MVC using the client IP address and freegeoip.net API. freegeoip.net is free and does not require any license.
Below is the sample code I used.
String UserIP = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (string.IsNullOrEmpty(UserIP))
{
UserIP = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}
string url = "http://freegeoip.net/json/" + UserIP.ToString();
WebClient client = new WebClient();
string jsonstring = client.DownloadString(url);
dynamic dynObj = JsonConvert.DeserializeObject(jsonstring);
System.Web.HttpContext.Current.Session["UserCountryCode"] = dynObj.country_code;
You can go through this post for more details.Hope it helps!
Using the Request of following web site
http://ip-api.com/
Following is C# code for returning Country and Country Code
public string GetCountryByIP(string ipAddress)
{
string strReturnVal;
string ipResponse = IPRequestHelper("http://ip-api.com/xml/" + ipAddress);
//return ipResponse;
XmlDocument ipInfoXML = new XmlDocument();
ipInfoXML.LoadXml(ipResponse);
XmlNodeList responseXML = ipInfoXML.GetElementsByTagName("query");
NameValueCollection dataXML = new NameValueCollection();
dataXML.Add(responseXML.Item(0).ChildNodes[2].InnerText, responseXML.Item(0).ChildNodes[2].Value);
strReturnVal = responseXML.Item(0).ChildNodes[1].InnerText.ToString(); // Contry
strReturnVal += "(" +
responseXML.Item(0).ChildNodes[2].InnerText.ToString() + ")"; // Contry Code
return strReturnVal;
}
And following is Helper for requesting url.
public string IPRequestHelper(string url) {
HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();
StreamReader responseStream = new StreamReader(objResponse.GetResponseStream());
string responseRead = responseStream.ReadToEnd();
responseStream.Close();
responseStream.Dispose();
return responseRead;
}
What you need is called a "geo-IP database". Most of them cost some money (albeit not too expensive), especially fairly precise ones. One of the most widely used is MaxMind's database. They have a fairly good free version of IP-to-city database called GeoLity City - it has lots of restrictions, but if you can cope with that that would be probably your best choice, unless you have some money to spare for a subscription to more accurate product.
And, yeah, they do have a C# API to query geo-IP databases available.
You'll probably have to use an external API, most of which cost money.
I did find this though, seems to be free: http://hostip.info/use.html
Return country
static public string GetCountry()
{
return new WebClient().DownloadString("http://api.hostip.info/country.php");
}
Usage:
Console.WriteLine(GetCountry()); // will return short code for your country
Return info
static public string GetInfo()
{
return new WebClient().DownloadString("http://api.hostip.info/get_json.php");
}
Usage:
Console.WriteLine(GetInfo());
// Example:
// {
// "country_name":"COUNTRY NAME",
// "country_code":"COUNTRY CODE",
// "city":"City",
// "ip":"XX.XXX.XX.XXX"
// }
It's good sample for you:
public class IpProperties
{
public string Status { get; set; }
public string Country { get; set; }
public string CountryCode { get; set; }
public string Region { get; set; }
public string RegionName { get; set; }
public string City { get; set; }
public string Zip { get; set; }
public string Lat { get; set; }
public string Lon { get; set; }
public string TimeZone { get; set; }
public string ISP { get; set; }
public string ORG { get; set; }
public string AS { get; set; }
public string Query { get; set; }
}
public string IPRequestHelper(string url)
{
HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();
StreamReader responseStream = new StreamReader(objResponse.GetResponseStream());
string responseRead = responseStream.ReadToEnd();
responseStream.Close();
responseStream.Dispose();
return responseRead;
}
public IpProperties GetCountryByIP(string ipAddress)
{
string ipResponse = IPRequestHelper("http://ip-api.com/xml/" + ipAddress);
using (TextReader sr = new StringReader(ipResponse))
{
using (System.Data.DataSet dataBase = new System.Data.DataSet())
{
IpProperties ipProperties = new IpProperties();
dataBase.ReadXml(sr);
ipProperties.Status = dataBase.Tables[0].Rows[0][0].ToString();
ipProperties.Country = dataBase.Tables[0].Rows[0][1].ToString();
ipProperties.CountryCode = dataBase.Tables[0].Rows[0][2].ToString();
ipProperties.Region = dataBase.Tables[0].Rows[0][3].ToString();
ipProperties.RegionName = dataBase.Tables[0].Rows[0][4].ToString();
ipProperties.City = dataBase.Tables[0].Rows[0][5].ToString();
ipProperties.Zip = dataBase.Tables[0].Rows[0][6].ToString();
ipProperties.Lat = dataBase.Tables[0].Rows[0][7].ToString();
ipProperties.Lon = dataBase.Tables[0].Rows[0][8].ToString();
ipProperties.TimeZone = dataBase.Tables[0].Rows[0][9].ToString();
ipProperties.ISP = dataBase.Tables[0].Rows[0][10].ToString();
ipProperties.ORG = dataBase.Tables[0].Rows[0][11].ToString();
ipProperties.AS = dataBase.Tables[0].Rows[0][12].ToString();
ipProperties.Query = dataBase.Tables[0].Rows[0][13].ToString();
return ipProperties;
}
}
}
And test:
var ipResponse = GetCountryByIP("your ip address or domain name :)");
An Alternative to using an API is to use HTML 5 location Navigator to query the browser about the User location. I was looking for a similar approach as in the subject question but I found that HTML 5 Navigator works better and cheaper for my situation. Please consider that your scinario might be different.
To get the User position using Html5 is very easy:
function getLocation()
{
if (navigator.geolocation)
{
navigator.geolocation.getCurrentPosition(showPosition);
}
else
{
console.log("Geolocation is not supported by this browser.");
}
}
function showPosition(position)
{
console.log("Latitude: " + position.coords.latitude +
"<br>Longitude: " + position.coords.longitude);
}
Try it yourself on W3Schools Geolocation Tutorial
public static string GetLocationIPAPI(string ipaddress)
{
try
{
IPDataIPAPI ipInfo = new IPDataIPAPI();
string strResponse = new WebClient().DownloadString("http://ip-api.com/json/" + ipaddress);
if (strResponse == null || strResponse == "") return "";
ipInfo = JsonConvert.DeserializeObject<IPDataIPAPI>(strResponse);
if (ipInfo == null || ipInfo.status.ToLower().Trim() == "fail") return "";
else return ipInfo.city + "; " + ipInfo.regionName + "; " + ipInfo.country + "; " + ipInfo.countryCode;
}
catch (Exception)
{
return "";
}
}
public class IPDataIPINFO
{
public string ip { get; set; }
public string city { get; set; }
public string region { get; set; }
public string country { get; set; }
public string loc { get; set; }
public string postal { get; set; }
public int org { get; set; }
}
==========================
public static string GetLocationIPINFO(string ipaddress)
{
try
{
IPDataIPINFO ipInfo = new IPDataIPINFO();
string strResponse = new WebClient().DownloadString("http://ipinfo.io/" + ipaddress);
if (strResponse == null || strResponse == "") return "";
ipInfo = JsonConvert.DeserializeObject<IPDataIPINFO>(strResponse);
if (ipInfo == null || ipInfo.ip == null || ipInfo.ip == "") return "";
else return ipInfo.city + "; " + ipInfo.region + "; " + ipInfo.country + "; " + ipInfo.postal;
}
catch (Exception)
{
return "";
}
}
public class IPDataIPAPI
{
public string status { get; set; }
public string country { get; set; }
public string countryCode { get; set; }
public string region { get; set; }
public string regionName { get; set; }
public string city { get; set; }
public string zip { get; set; }
public string lat { get; set; }
public string lon { get; set; }
public string timezone { get; set; }
public string isp { get; set; }
public string org { get; set; }
public string #as { get; set; }
public string query { get; set; }
}
==============================
private static string GetLocationIPSTACK(string ipaddress)
{
try
{
IPDataIPSTACK ipInfo = new IPDataIPSTACK();
string strResponse = new WebClient().DownloadString("http://api.ipstack.com/" + ipaddress + "?access_key=XX384X1XX028XX1X66XXX4X04XXXX98X");
if (strResponse == null || strResponse == "") return "";
ipInfo = JsonConvert.DeserializeObject<IPDataIPSTACK>(strResponse);
if (ipInfo == null || ipInfo.ip == null || ipInfo.ip == "") return "";
else return ipInfo.city + "; " + ipInfo.region_name + "; " + ipInfo.country_name + "; " + ipInfo.zip;
}
catch (Exception)
{
return "";
}
}
public class IPDataIPSTACK
{
public string ip { get; set; }
public int city { get; set; }
public string region_code { get; set; }
public string region_name { get; set; }
public string country_code { get; set; }
public string country_name { get; set; }
public string zip { get; set; }
}