B4X

SNS Publish (Send Message)

See more Amazon SNS Examples

Sends a message to all of a topic's subscribed endpoints.

See SNS Publish for more information.

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 REST server.
'  such as https://sns.us-west-2.amazonaws.com/
Dim bTls As Boolean = True
Dim port As Int = 443
Dim bAutoReconnect As Boolean = True
success = rest.Connect("sns.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 our URL above..
authAws.Region = "us-west-2"
authAws.ServiceName = "sns"

rest.SetAuthAws(authAws)

rest.AddQueryParam("Action", "Publish")
rest.AddQueryParam("TopicArn", "arn:aws:sns:us-west-2:957491831129:chilkat")
'  For subscribed email addresses, this is the subject of the email.
rest.AddQueryParam("Subject", "Test Message from Amazon SNS")
rest.AddQueryParam("Message", "This is a test message from Amazon SNS")

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)

'  To get the MessageId
Log("MessageId: " & xml.ChilkatPath("PublishResult|MessageId|*"))

'  A sample successful response:
'  <?xml version="1.0" encoding="utf-8" ?>
'  <PublishResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/">
'      <PublishResult>
'          <MessageId>5e135f2e-898d-5006-940a-0f43829c764b</MessageId>
'      </PublishResult>
'      <ResponseMetadata>
'          <RequestId>9adbf47d-9e07-5981-bb7f-a4609a167fcc</RequestId>
'      </ResponseMetadata>
'  </PublishResponse>