B4X Requires Chilkat v11.0.0+

REST through SSH Tunnel

See more REST Examples

Demonstrates how to connect through an SSH Tunnel (via port-forwarding) to make REST API calls. B4X

Dim success As Boolean = False

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

Dim tunnel As ChilkatSocket
tunnel.Initialize("tunnel")

Dim sshHostname As String = "sftp.example.com"
Dim sshPort As Int = 22

'  Connect to an SSH server and establish the SSH tunnel:
success = tunnel.SshOpenTunnel(sshHostname, sshPort)
If success = False Then
    Log(tunnel.LastErrorText)
    Return
End If


'  Authenticate with the SSH server via a login/password
'  or with a public key.
'  This example demonstrates SSH password authentication.
success = tunnel.SshAuthenticatePw("mySshLogin", "mySshPassword")
If success = False Then
    Log(tunnel.LastErrorText)
    Return
End If


'   OK, the SSH tunnel is setup.  Now open a channel within the tunnel.
'   (Any number of channels may be created from the same SSH tunnel.
'   Multiple channels may coexist at the same time.)

'  This example connects to a REST server through the SSH tunnel.
'  It will connect to the Amazon AWS service for this example.
Dim rest As ChilkatRest
rest.Initialize("rest")

Dim bTls As Boolean = True
Dim port As Int = 443
Dim maxWaitMs As Int = 5000

'  This returns a socket object that is a single channel within the SSH tunnel.
Dim channel As ChilkatSocket
channel.Initialize("channel")
success = tunnel.SshNewChannel("s3.amazonaws.com", port, bTls, maxWaitMs, channel)
If success = False Then
    Log(tunnel.LastErrorText)
    Return
End If


'  Use the connection.  (This connection is a TLS running on an SSH channel through an SSH tunnel.
'  In other words, TLS is wrapped within the SSH tunnel.)
success = rest.UseConnection(channel, True)
If success <> True Then
    Log(rest.LastErrorText)
    Return
End If


'  Provide AWS credentials for the REST call.
Dim authAws As ChilkatAuthAws
authAws.Initialize
authAws.AccessKey = "AWS_ACCESS_KEY"
authAws.SecretKey = "AWS_SECRET_KEY"
authAws.ServiceName = "s3"
success = rest.SetAuthAws(authAws)

'  List all buckets for the account...
Dim responseXml As String = rest.FullRequestNoBody("GET", "/")
If rest.LastMethodSuccess <> True Then
    Log(rest.LastErrorText)
    Return
End If


Dim xml As ChilkatXml
xml.Initialize
success = xml.LoadXml(responseXml)

'  Show the full XML returned.
Log(xml.GetXml)

'  Iterate over the buckets, showing each bucket name.
success = xml.FindChild2("Buckets")
If xml.FirstChild2 = True Then
    Log(xml.GetChildContent("Name"))
    Do While (xml.NextSibling2 = True)
        Log(xml.GetChildContent("Name"))
    Loop
End If

'  Move the internal pointer back to the root node.
xml.GetRoot2