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Creating a reusable web client for PUT, POST, and DELETE in C#
Thursday, July 23rd, 2009
C# has a very basic and pretty easy-to-understand methodology for sending and receiving web requests, but seeing as I use this type of operation on a regular basis it has served me very well over the years to have my own class that I have added to as needed. I figured I would share this with those of you interested in the hope that it would make your lives easier as well.
This class works very easily, allowing a user to specify the parameters, timeout, and user agent as required, and PUT, POST, or DELETE methods to
execute web requests as necessary. Each request returns an HttpResult class which includes the response code, as well as the data returned.
Without further ado, here is the code:
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;
namespace NerdyHearn. Com
{
public class HttpResult
{
private string m_Data = string. Empty;
private System.Net. HttpStatusCode m_StatusCode = System.Net. HttpStatusCode. OK;
public HttpResult (string Data, System.Net. HttpStatusCode StatusCode )
{
m_Data = Data ;
m_StatusCode = StatusCode ;
}
public string Data
{
get
{
return m_Data ;
}
}
public System.Net. HttpStatusCode StatusCode
{
get
{
return m_StatusCode ;
}
}
}
public class HttpRequest
{
private string m_URL = string. Empty;
private string m_UserAgent = string. Empty;
private Dictionary <string, string> m_Parameters = new Dictionary <string, string>();
private int m_Timeout = 60000;
public HttpRequest () { }
public HttpResult Send (string Method )
{
string qString = string. Empty;
if (Parameters. Count > 0 )
{
foreach (string key in Parameters. Keys)
{
if (!qString. Equals(""))
{
qString += "&";
}
qString += key + "=" + System.Web. HttpUtility. UrlEncode(Parameters [key ]. ToString());
}
}
WebRequest request = WebRequest. Create(m_URL );
if (!m_UserAgent. Equals(""))
{
((HttpWebRequest )request ). UserAgent = m_UserAgent ;
}
request. Method = Method ;
request. Timeout = m_Timeout ;
if (Method. Equals("POST") || Method. Equals("DELETE"))
{
byte[] byteArray = Encoding. UTF8. GetBytes(qString );
request. ContentType = "application/x-www-form-urlencoded";
request. ContentLength = byteArray. Length;
Stream dataStreamPostData = request. GetRequestStream();
dataStreamPostData. Write(byteArray, 0, byteArray. Length);
dataStreamPostData. Close();
}
else if (Method. Equals("GET"))
{
m_URL += "?" + qString ;
}
HttpStatusCode StatusCode = HttpStatusCode. OK;
HttpWebResponse response ;
Stream dataStream ;
StreamReader reader ;
string result = string. Empty;
response = (HttpWebResponse )request. GetResponse();
StatusCode = response. StatusCode;
dataStream = response. GetResponseStream();
reader = new StreamReader (dataStream );
result = reader. ReadToEnd();
reader. Close();
dataStream. Close();
response. Close();
return new HttpResult (result, StatusCode );
}
public string URL
{
get
{
return m_URL ;
}
set
{
m_URL = value ;
}
}
public Dictionary <string, string> Parameters
{
get
{
return m_Parameters ;
}
set
{
m_Parameters = value ;
}
}
public int Timeout
{
get
{
return m_Timeout ;
}
set
{
m_Timeout = value ;
}
}
public string UserAgent
{
get
{
return m_UserAgent ;
}
set
{
m_UserAgent = value ;
}
}
}
}
Pretty basic, but I love to have reusable code classes around to speed up development as much as possible.
WebRequestin' Tom Out.
Tags
CSharp
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