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Xojo Plugin Examples

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(Xojo Plugin) S3 - Working with Buckets in a Region

Demonstrates how to work with S3 buckets located in a particular region.

Chilkat Xojo Plugin Download

Xojo Plugin for Windows, Linux, Mac OS X, and ARM

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

//  When usig the REST class to access an S3 bucket that has been created in a particular region,
//  there are three important things to remember:
// 
//  1) Connect to the domain that includes the region.  For example, instead of connecting to
//     "s3.amazonaws.com", connect to "s3.eu-central-1.amazonaws.com" if your bucket is in the EU Frankfurt region.
//     See http://docs.aws.amazon.com/general/latest/gr/rande.html#s3_region   for a list of S3 region domains (endpoints)
// 
//  2) Set the AuthAws.Region property equal to the region, such as "eu-central-1".
// 
//  3) Include the region in request's Host header.
// 

//  This example will upload to a bucket in the eu-central-1 region.
// 
Dim rest As New Chilkat.Rest

//  Connect to the Amazon AWS REST server.
Dim bTls As Boolean
bTls = True
Dim port As Int32
port = 443
Dim bAutoReconnect As Boolean
bAutoReconnect = True
Dim success As Boolean
success = rest.Connect("s3.eu-central-1.amazonaws.com",port,bTls,bAutoReconnect)

//  Provide AWS credentials for the REST call.
Dim authAws As New Chilkat.AuthAws
authAws.AccessKey = "AWS_ACCESS_KEY"
authAws.SecretKey = "AWS_SECRET_KEY"
authAws.ServiceName = "s3"
authAws.Region = "eu-central-1"
success = rest.SetAuthAws(authAws)

//  Set the bucket name via the HOST header.
//  In this case, the bucket name is "chilkateufrankfurt" (which was created in the eu-central-1 region)
rest.Host = "chilkateufrankfurt.s3.eu-central-1.amazonaws.com"

Dim fileData As New Chilkat.BinData
success = fileData.LoadFile("qa_data/jpg/starfish.jpg")

//  Upload the file to Amazon S3.
Dim responseBody As New Chilkat.StringBuilder
success = rest.FullRequestBd("PUT","/starfish.jpg",fileData,responseBody)
If (success <> True) Then
    System.DebugLog(rest.LastErrorText)
    Return
End If

//  Did we get a 200 response indicating success?
Dim statusCode As Int32
statusCode = rest.ResponseStatusCode
If (statusCode <> 200) Then
    System.DebugLog("Error response: " + responseBody.GetAsString())
    System.DebugLog("Status code: " + Str(statusCode) + ", Status text: " + rest.ResponseStatusText)
    Return
End If

System.DebugLog("File successfully uploaded.")

 

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