(PureBasic) S3 Find Bucket Region

Demonstrates how to find out the region of an S3 bucket.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkXml.pb"
IncludeFile "CkAuthAws.pb"
IncludeFile "CkRest.pb"

Procedure ChilkatExample()

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

    rest.i = CkRest::ckCreate()
    If rest.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Connect to the Amazon AWS REST server using the correct region (in this example, "us-west-2")
    bTls.i = 1
    port.i = 443
    bAutoReconnect.i = 1
    success.i = CkRest::ckConnect(rest,"s3.amazonaws.com",port,bTls,bAutoReconnect)

    ; Provide AWS credentials for the REST call.
    authAws.i = CkAuthAws::ckCreate()
    If authAws.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkAuthAws::setCkAccessKey(authAws, "AWS_ACCESS_KEY")
    CkAuthAws::setCkSecretKey(authAws, "AWS_SECRET_KEY")
    CkAuthAws::setCkServiceName(authAws, "s3")
    success = CkRest::ckSetAuthAws(rest,authAws)

    ; The bucket name we want to know about is set in the HOST header.
    ; In this example, we want to find the region for the "chilkat.qa" bucket.
    CkRest::setCkHost(rest, "chilkat.qa.s3.amazonaws.com")

    ; Send the GET request to query the bucket location.
    strResult.s = CkRest::ckFullRequestNoBody(rest,"GET","/?location")
    If CkRest::ckLastMethodSuccess(rest) <> 1
        Debug CkRest::ckLastErrorText(rest)
        CkRest::ckDispose(rest)
        CkAuthAws::ckDispose(authAws)
        ProcedureReturn
    EndIf

    responseStatusCode.i = CkRest::ckResponseStatusCode(rest)
    Debug "Response status code = " + Str(responseStatusCode)
    If responseStatusCode <> 200
        Debug CkRest::ckResponseHeader(rest)
        Debug strResult
        Debug "Failed."
        CkRest::ckDispose(rest)
        CkAuthAws::ckDispose(authAws)
        ProcedureReturn
    EndIf

    Debug strResult

    ; The result contains XML like this:
    ; <?xml version="1.0" encoding="UTF-8"?>
    ; <LocationConstraint xmlns="http://s3.amazonaws.com/doc/2006-03-01/">us-west-2</LocationConstraint>

    ; Get the "us-west-2" from the XML
    xml.i = CkXml::ckCreate()
    If xml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkXml::ckLoadXml(xml,strResult)
    Debug "region = " + CkXml::ckContent(xml)


    CkRest::ckDispose(rest)
    CkAuthAws::ckDispose(authAws)
    CkXml::ckDispose(xml)


    ProcedureReturn
EndProcedure