(VB.NET) Upload File with User-Defined Metadata

Demonstrates how to upload a file with user-defined metadata to the Amazon S3 service.

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

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

Dim http As New Chilkat.Http

' Insert your AWS keys here:
http.AwsAccessKey = "AWS_ACCESS_KEY"
http.AwsSecretKey = "AWS_SECRET_KEY"

Dim bucketName As String = "chilkat.ocean"
Dim objectName As String = "seahorse.jpg"
Dim localFilePath As String = "qa_data/jpg/seahorse.jpg"
Dim contentType As String = "image/jpg"

' User-defined metadata are name/value pairs, and are added to the HTTP request header.
' Header names must begin with "x-amz-meta-" to distinguish them from other HTTP headers.
' Note that Amazon S3 stores user-defined metadata keys in lowercase.

' For example, to add genus=Hippocampus, we do this:
http.SetRequestHeader("x-amz-meta-genus","Hippocampus")

' Add a few more user-metadata key pairs.
http.SetRequestHeader("x-amz-meta-species","big-belly seahorse")
http.SetRequestHeader("x-amz-meta-habitat","shallow tropical and temperate waters")


Dim success As Boolean = http.S3_UploadFile(localFilePath,contentType,bucketName,objectName)

If (success <> True) Then
    Debug.WriteLine(http.LastErrorText)
Else
    Debug.WriteLine("File uploaded.")
End If