(Xojo Plugin) Duplicate curl -u user:password with Chilkat HTTP

Demonstrates how to duplicate a curl command that uses the -u username:password option. (This assumes HTTP Basic Authentication, and Chilkat requires Basic authentication to be over a TLS connection.)

Duplicates the following curl command:

curl https://api.sandbox.paypal.com/v1/oauth2/token \
  -H "Accept: application/json" \
  -H "Accept-Language: en_US" \
  -u "Client-Id:Secret" \
  -d "grant_type=client_credentials"

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

Dim http As New Chilkat.Http
Dim req As New Chilkat.HttpRequest

//  The AddHeader method corresponds to the curl "-H" argument.
req.AddHeader "Accept","application/json"
req.AddHeader "Accept-Language","en_US"

//  The curl "-d" argument specifies the HTTP request body.  In this case,
//  we're sending an application/x-www-form-urlencoded request, and therefore
//  the body contains the URL-encoded query parameters.
req.AddParam "grant_type","client_credentials"

http.Login = "PAYPAL_REST_API_CLIENT_ID"
http.Password = "PAYPAL_REST_API_SECRET"

//  Sends a POST request where the Content-Type is application/x-www-form-urlencoded
Dim resp As Chilkat.HttpResponse
resp = http.PostUrlEncoded("https://api.sandbox.paypal.com/v1/oauth2/token",req)
If (http.LastMethodSuccess <> True) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

If (resp.StatusCode <> 200) Then
    System.DebugLog("Error status code: " + Str(resp.StatusCode))
    System.DebugLog(resp.BodyStr)

    Return
End If

//  The JSON response is in the resp BodyStr property
System.DebugLog(resp.BodyStr)
System.DebugLog("-- Success.")