B4X

EC2 Stop Instances

See more Amazon EC2 Examples

Demonstrates how to send a request to stop Amazon EC2 instances. 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 rest As ChilkatRest
rest.Initialize("rest")

'  Connect to the Amazon AWS server.
'  such as https://ec2.amazonaws.com/
Dim bTls As Boolean = True
Dim port As Int = 443
Dim bAutoReconnect As Boolean = True
success = rest.Connect("ec2.us-west-2.amazonaws.com", port, bTls, bAutoReconnect)

'  Provide AWS credentials for the REST call.
Dim authAws As ChilkatAuthAws
authAws.Initialize
authAws.AccessKey = "AWS_ACCESS_KEY"
authAws.SecretKey = "AWS_SECRET_KEY"
'  the region should match the region part of the domain passed to the REST connect method (above).
authAws.Region = "us-west-2"
authAws.ServiceName = "ec2"

rest.SetAuthAws(authAws)

rest.AddQueryParam("Action", "StopInstances")
rest.AddQueryParam("Version", "2016-11-15")
'  If DryRun is true then checks whether you have the required permissions for the action, 
'  without actually making the request, and provides an error response. If you have the required permissions, 
'  the error response is DryRunOperation. Otherwise, it is UnauthorizedOperation.
'  Omit the DryRun query parameter to actually start the instance.  (Or set DryRun equal to "false")
rest.AddQueryParam("DryRun", "true")
rest.AddQueryParam("InstanceId.1", "i-999719995399c9999")

'  See EC2 Stop Instances Reference Documentation
'  for more information about the Force and Hibernate query params, which are optional and true/false just like DryRun.

Dim responseXml As String = rest.FullRequestNoBody("GET", "/")
If rest.LastMethodSuccess <> True Then
    Log(rest.LastErrorText)
    Return
End If


'  A successful response will have a status code equal to 200.
If rest.ResponseStatusCode <> 200 Then
    Log("response status code = " & rest.ResponseStatusCode)
    Log("response status text = " & rest.ResponseStatusText)
    Log("response header: " & rest.ResponseHeader)
    Log("response body: " & responseXml)
    Return
End If


'  Examine the successful XML response.
Dim xml As ChilkatXml
xml.Initialize
xml.LoadXml(responseXml)
Log(xml.GetXml)