PowerBuilder

HTTP Verb - How to use any Verb (GET, PUT, POST, DELETE, PROPFIND, etc.)

The HttpVerb property may be set to anything. Typically, it is set to the common/standard HTTP verbs such as GET, POST, PUT, DELETE, etc. It can be set to anything, including custom verbs that only have meaning to your particular server-side application.

This example demonstrates how to compose an HTTP request using the PROPFIND verb, which is something one might use with a WebDAV request.

This example composes the following HTTP request:

   PROPFIND  /container/ HTTP/1.1
   Host: www.foo.bar
   Depth: 1
   Content-Type: text/xml; charset="utf-8"
   Content-Length: xxxx

   <?xml version="1.0" encoding="utf-8" ?>
   <D:propfind xmlns:D="DAV:">
     <D:allprop/>
   </D:propfind>

PowerBuilder

integer li_rc
oleobject loo_Req
oleobject loo_Xml
string ls_RequestMime

loo_Req = create oleobject
li_rc = loo_Req.ConnectToNewObject("Chilkat.HttpRequest")
if li_rc < 0 then
    destroy loo_Req
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// The ContentType, HttpVerb, and Path properties should
// always be explicitly set.
loo_Req.HttpVerb = "PROPFIND"
loo_Req.Path = "/container/"
loo_Req.ContentType = "text/xml"
loo_Req.Charset = "utf-8"
loo_Req.SendCharset = 1

loo_Req.AddHeader("Depth","1")

loo_Xml = create oleobject
li_rc = loo_Xml.ConnectToNewObject("Chilkat.Xml")

loo_Xml.Tag = "propfind"
loo_Xml.AddAttribute("xmlns:D","DAV:")
loo_Xml.NewChild2("allprop","")

loo_Req.LoadBodyFromString(loo_Xml.GetXml(),"utf-8")

// View the request that would be sent if HttpSReq was called:
ls_RequestMime = loo_Req.GenerateRequestText()
Write-Debug ls_RequestMime

// A few important comments about the HTTP request that is generated:
// 
// 1) The Content-Length header is automatically generated based on the actual length of the MIME message
//    that follows the intial (topmost) MIME header.
// 2) The HOST header will automatically get filled in with the actual domain when HttpSReq
//    is called


destroy loo_Req
destroy loo_Xml