(Go) URL Encoding Charset in POST Query Params

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

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

    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".
    nameWin1252Encoded := "M%E6RSK"

    sb := StringBuilder_Ref.html">chilkat.NewStringBuilder()
    success = sb.DecodeAndAppend(nameWin1252Encoded,"url","windows-1252")

    http := Http_Ref.html">chilkat.NewHttp()

    // We're setting the session log filename so we can see the exact request sent.
    http.SetSessionLogFilename("qa_output/sessionLog.txt")

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

    req := HttpRequest_Ref.html">chilkat.NewHttpRequest()

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

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

    req.SetHttpVerb("POST")
    req.SetHttpVerb("POST")
    req.SetContentType("application/x-www-form-urlencoded")

    resp := HttpResponse_Ref.html">chilkat.NewHttpResponse()
    success = http.HttpReq("https://www.chilkatsoft.com/something",req,resp)
    if success == false {
        fmt.Println(http.LastErrorText())
        sb.DisposeStringBuilder()
        http.DisposeHttp()
        req.DisposeHttpRequest()
        resp.DisposeHttpResponse()
        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.SetCharset("windows-1252")
    req.SetHttpVerb("POST")
    req.SetContentType("application/x-www-form-urlencoded")

    success = http.HttpReq("https://www.chilkatsoft.com/something",req,resp)
    if success == false {
        fmt.Println(http.LastErrorText())
        sb.DisposeStringBuilder()
        http.DisposeHttp()
        req.DisposeHttpRequest()
        resp.DisposeHttpResponse()
        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.SetPath("/something")
    req.SetHttpVerb("POST")
    req.SetContentType("application/x-www-form-urlencoded")

    req.SetCharset("utf-8")
    success = http.HttpSReq("www.chilkatsoft.com",443,true,req,resp)
    if success == false {
        fmt.Println(http.LastErrorText())
        sb.DisposeStringBuilder()
        http.DisposeHttp()
        req.DisposeHttpRequest()
        resp.DisposeHttpResponse()
        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 PostXml 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.SetPath("/something")
    req.SetHttpVerb("POST")
    req.SetContentType("text/xml")
    success = req.LoadBodyFromString("<test>123</test>","utf-8")
    req.SetCharset("utf-8")

    // Remember... our request object still contains the query param added in the above call to AddParam.new HttpResponse_Ref.html">HttpResponse resp;
    success = http.HttpSReq("www.chilkatsoft.com",443,true,req,resp)
    if success == false {
        fmt.Println(http.LastErrorText())
        sb.DisposeStringBuilder()
        http.DisposeHttp()
        req.DisposeHttpRequest()
        resp.DisposeHttpResponse()
        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>

    sb.DisposeStringBuilder()
    http.DisposeHttp()
    req.DisposeHttpRequest()
    resp.DisposeHttpResponse()