C#

URL Encoding Charset in POST Query Params

See more HTTP Examples

Demonstrates how to control the URL encoding charset in POST query params. C#

bool success = false;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

//  We have the string "MÆRSK".
string nameWin1252Encoded = "M%E6RSK";

Chilkat.StringBuilder sb = new Chilkat.StringBuilder();
success = sb.DecodeAndAppend(nameWin1252Encoded,"url","windows-1252");

Chilkat.Http http = new Chilkat.Http();

//  We're setting the session log filename so we can see the exact request sent.
http.SessionLogFilename = "qa_output/sessionLog.txt";

//  First demonstrate a simple application/x-www-form-urlencoded POST

Chilkat.HttpRequest req = new Chilkat.HttpRequest();

//  Set the Charset = "utf-8" to cause URL encoding to use utf-8.
req.Charset = "utf-8";

req.AddParam("name",sb.GetAsString());

req.HttpVerb = "POST";
req.ContentType = "application/x-www-form-urlencoded";

Chilkat.HttpResponse resp = new Chilkat.HttpResponse();
success = http.HttpReq("https://www.chilkatsoft.com/something",req,resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

//  This is the request that is sent:
//  Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6)

//  	POST /something HTTP/1.1
//  	Host: www.chilkatsoft.com
//  	Content-Type: application/x-www-form-urlencoded
//  	Content-Length: 15
//  
//  	name=M%C3%A6RSK

//  ---------------------------------------------------------------
//  Switch to windows-1252

req.Charset = "windows-1252";
req.HttpVerb = "POST";
req.ContentType = "application/x-www-form-urlencoded";

success = http.HttpReq("https://www.chilkatsoft.com/something",req,resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

//  This is the request that is sent:
//  Notice that windows-1252 is used in the query param (the letter 'Æ' is %E6)

//  	POST /something HTTP/1.1
//  	Host: www.chilkatsoft.com
//  	Content-Type: application/x-www-form-urlencoded
//  	Content-Length: 12
//  
//  	name=M%E6RSK

//  ---------------------------------------------------------------
//  Let's do the same with HttpSReq, switching back to utf-8

req.Path = "/something";
req.HttpVerb = "POST";
req.ContentType = "application/x-www-form-urlencoded";

req.Charset = "utf-8";
success = http.HttpSReq("www.chilkatsoft.com",443,true,req,resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

//  This is the request that is sent:
//  Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6)

//  	POST /something HTTP/1.1
//  	Host: www.chilkatsoft.com
//  	Content-Type: application/x-www-form-urlencoded
//  	Content-Length: 15
//  
//  	name=M%C3%A6RSK

//  ---------------------------------------------------------------
//  Let's do a POST with XML body where the query params are in the HTTP request start line, 
//  and the Content-Type is text/xml where the body of the request is XML.

req.Path = "/something";
req.HttpVerb = "POST";
req.ContentType = "text/xml";
success = req.LoadBodyFromString("<test>123</test>","utf-8");
req.Charset = "utf-8";

//  Remember... our request object still contains the query param added in the above call to AddParam.
success = http.HttpSReq("www.chilkatsoft.com",443,true,req,resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

//  This is the request that is sent:
//  Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6)

//  	POST /something?name=M%C3%A6RSK HTTP/1.1
//  	Host: www.chilkatsoft.com
//  	Content-Type: text/xml
//  	Content-Length: 16
//  
//  	<test>123</test>