Class
WebRequest
Description
The WebRequest object represents an HTTP request.
Properties
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Property descriptions
WebRequest.Body
Body As String
The data sent with the request when it's too large to be a parameter such as a file or or large amount of data.
This property is read-only.
WebRequest.Method
Method As String
Returns the request type, such as GET, POST, or PUT.
This property is read-only.
WebRequest.MIMEType
MIMEType As String
Gets or sets the HTTP "Content-Type" header. This is merely a convenience feature, setting the header manually using Header will perform the exact same task. This value defaults to "text/html".
This property is read-only.
WebRequest.Path
Path As String
Returns the part of the requested url after the path, without the query string. Using the URL http://mydomain.com/folder/file?query as an example, this property would be set to "folder/file".
This property is read-only.
In the WebApplication.HandleURL event handler, you can check the URL that was used so that you can perform different actions:
Select Case Request.Path
Case "users"
' Return XML containing currently logged in users back to the client
Case "status"
' Return XML containing status information back to the client
End Select
WebRequest.QueryString
QueryString As String
Returns the query part of the requested url. Using the URL http://mydomain.com/folder/file?query as an example, this property would be set to "query".
This property is read-only.
This code in WebApplication.HandleURL could fetch information about a user in the database and return it as XML:
Select Case Request.Path
Case "user"
Var id As String = Request.QueryString
If Not id.IsEmpty Then
' Create XML containing data for the user ID
Var xml As String
xml = CreateUserXML(id)
Request.Print(xml)
Return True
End If
End Select
WebRequest.RemoteAddress
RemoteAddress As String
Returns the IP Address of the browser making the request.
This property is read-only.
To implement a white list for web requests to your app, you can check the remote address in WebApplication.HandleURL and ignore any that you don't approve:
If Request.RemoteAddress = "192.45.34.22" Then
' Do processing
Return True
Else
Return False ' Don't handle the request
End If
WebRequest.Secure
Secure As Boolean
Indicates if the request came in over a secure channel.
This property is read-only.
Method descriptions
WebRequest.Cookie
Cookie(name As String) As String
Returns the cookie using the specified Name or an empty string if no such cookie exists.
WebRequest.Header
Header(name As String) As String
Gets or sets a request header using the specified Name. Setting a header to a blank string removes the header.
WebRequest.HeaderNames
HeaderNames As String()
Returns and array of all header names.
WebRequest.Parameter
Parameter(name As String) As String
Returns the parameter value using the specified Name or an empty string if no such parameter exists.
WebRequest.Reset
Reset
Resets the request object back to its original state.
Notes
You are most likely to use this in conjunction with the WebApplication.HandleURL event handler. This event handler supplies a parameter (Request As WebRequest) that you can use to process the incoming request and send out a reply.
Compatibility
Web projects on all supported operating systems.
See also
Object parent class; WebApplication.HandleURL event and WebResponse class.