(Lianja) Amazon Glacier List Tags for Vault

Lists all the tags attached to a vault. The operation returns an empty map if there are no tags.

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

loRest = createobject("CkRest")

// Connect to the Amazon AWS REST server in the desired region.
llBTls = .T.
lnPort = 443
llBAutoReconnect = .T.
llSuccess = loRest.Connect("glacier.us-west-2.amazonaws.com",lnPort,llBTls,llBAutoReconnect)

// Provide AWS credentials.
loAuthAws = createobject("CkAuthAws")
loAuthAws.AccessKey = "AWS_ACCESS_KEY"
loAuthAws.SecretKey = "AWS_SECRET_KEY"
loAuthAws.ServiceName = "glacier"
loAuthAws.Region = "us-west-2"

llSuccess = loRest.SetAuthAws(loAuthAws)

// --------------------------------------------------------------------------
// Note: The above REST connection and setup of the AWS credentials
// can be done once.  After connecting, any number of REST calls can be made.
// The "auto reconnect" property passed to rest.Connect indicates that if
// the connection is lost, a REST method call will automatically reconnect
// if needed.
// --------------------------------------------------------------------------

// 
// For more information, see Glacier List Tags for Vault Reference Documentation
// 
loRest.AddHeader("x-amz-glacier-version","2012-06-01")

// Get the tags for the "chilkat" vault.
loSbResponseBody = createobject("CkStringBuilder")
llSuccess = loRest.FullRequestNoBodySb("GET","/AWS_ACCOUNT_ID/vaults/chilkat/tags",loSbResponseBody)
if (llSuccess <> .T.) then
    ? loRest.LastErrorText
    release loRest
    release loAuthAws
    release loSbResponseBody
    return
endif

lnRespStatusCode = loRest.ResponseStatusCode
if (lnRespStatusCode >= 400) then
    ? "Response Status Code = " + str(lnRespStatusCode)
    ? "Response Header:"
    ? loRest.ResponseHeader
    ? "Response Body:"
    ? loSbResponseBody.GetAsString()
    release loRest
    release loAuthAws
    release loSbResponseBody
    return
endif

// Success is indicated by a 200 response status with an empty response body.
? "response status code = " + str(lnRespStatusCode)

loJson = createobject("CkJsonObject")
loJson.LoadSb(loSbResponseBody)
loJson.EmitCompact = .F.

? loJson.Emit()
? "----"

loJTags = loJson.ObjectOf("Tags")
lnNumTags = loJTags.Size
i = 0
do while i < lnNumTags
    ? loJTags.NameAt(i) + ": " + loJTags.StringAt(i)
    i = i + 1
enddo
release loJTags

// Sample response
// 
// {
//   "Tags": {
//     "tagName1": "tagValue1",
//     "tagName2": "tagValue2"
//   }
// }


release loRest
release loAuthAws
release loSbResponseBody
release loJson