VB.NET

HTTP GET with Non-USASCII Query Params

See more HTTP Examples

This example illustrates how query parameters in a URL are typically encoded and transmitted. VB.NET

Dim success As Boolean = False

' This example assumes the Chilkat HTTP API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' First, let's load the string "Grünhöfer GmbH" from a file.  (This is a fictitious company name.)
' The file uses the utf-8 charset encoding.
Dim sbCompanyName As New Chilkat.StringBuilder
success = sbCompanyName.LoadFile("qa_data/txt/companyName.txt","utf-8")
' Assuming success for this example...

' We'll send an HTTP GET request to https://chilkatsoft.com/example?company_name={company name}

' When sending an HTTP GET request with query parameters that contain accented characters 
' (e.g., umlauts: ä, ö, ü), they must be percent-encoded (URL encoded) to ensure proper transmission and 
' interpretation by the server.  This is based on their UTF-8 byte values.
Dim sbUrl As New Chilkat.StringBuilder
sbUrl.Append("https://chilkatsoft.com/example?company_name=")
sbUrl.Append(sbCompanyName.GetEncoded("url","utf-8"))

Dim http As New Chilkat.Http

' Send the following HTTP GET request:

' GET /example?company_name=Gr%C3%BCnh%C3%B6fer%20GmbH HTTP/1.1
' Host: chilkatsoft.com
' Accept: */*
' Accept-Encoding: gzip

Dim sbResponse As New Chilkat.StringBuilder
success = http.QuickGetSb(sbUrl.GetAsString(),sbResponse)
If (success = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Debug.WriteLine("response status code: " & http.LastStatus)
Debug.WriteLine(sbResponse.GetAsString())