B4X

SQS Send Message

See more Amazon SQS Examples

Note: This example requires a patch to work properly. It requires Chilkat v9.5.0.61, which can be obtained upon request to support@chilkatsoft.com

Delivers a message to the specified queue. With Amazon SQS, you now have the ability to send large payload messages that are up to 256KB (262,144 bytes) in size.

See SQS SendMessage or detailed information.

B4X

Dim success As Boolean = False

'  Note: This example requires a patch to work properly.  
'  It requires Chilkat v9.5.0.61, which can be obtained upon request to support@chilkatsoft.com

'  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://sqs.us-west-2.amazonaws.com/
Dim bTls As Boolean = True
Dim port As Int = 443
Dim bAutoReconnect As Boolean = True
success = rest.Connect("sqs.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 = "sqs"

rest.SetAuthAws(authAws)

rest.AddQueryParam("Action", "SendMessage")
rest.AddQueryParam("MessageBody", "This is the message body which can be up to 256K in size.")
rest.AddQueryParam("MessageAttribute.1.Name", "test_attribute_name_1")
rest.AddQueryParam("MessageAttribute.1.Value.StringValue", "test_attribute_value_1")
rest.AddQueryParam("MessageAttribute.1.Value.DataType", "String")
rest.AddQueryParam("MessageAttribute.2.Name", "test_attribute_name_2")
rest.AddQueryParam("MessageAttribute.2.Value.StringValue", "test_attribute_value_2")
rest.AddQueryParam("MessageAttribute.2.Value.DataType", "String")

'  Use the actual path part of your SQS queue URL here:
Dim responseXml As String = rest.FullRequestFormUrlEncoded("POST", "/123456789123/chilkatTest")
If rest.LastMethodSuccess <> True Then
    Log(rest.LastErrorText)
    Return
End If

Dim xml As ChilkatXml
xml.Initialize

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


'  Examine the successful XML response.
xml.LoadXml(responseXml)
Log(xml.GetXml)
Log("----")

'  A successful response looks like this:
'  <?xml version="1.0" encoding="utf-8" ?>
'  <SendMessageResponse>
'      <SendMessageResult>
'          <MD5OfMessageBody>
'              fafb00f5732ab283681e124bf8747ed1
'          </MD5OfMessageBody>
'          <MD5OfMessageAttributes>
'  	    3ae8f24a165a8cedc005670c81a27295
'          </MD5OfMessageAttributes>
'          <MessageId>
'              5fea7756-0ea4-451a-a703-a558b933e274
'          </MessageId>
'      </SendMessageResult>
'      <ResponseMetadata>
'          <RequestId>
'              27daac76-34dd-47df-bd01-1f6e873584a0
'          </RequestId>
'      </ResponseMetadata>
'  </SendMessageResponse>

'  Get some values from the response XML:
Log("Body: " & xml.ChilkatPath("SendMessageResult|MD5OfMessageBody|*"))
Log("MessageId: " & xml.ChilkatPath("SendMessageResult|MessageId|*"))
Log("RequestId: " & xml.ChilkatPath("ResponseMetadata|RequestId|*"))