(Lianja) Amazon Glacier List Vaults

Demonstrates how to list the glacier vaults in a given region.

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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 Vaults Reference Documentation
// 
loRest.AddHeader("x-amz-glacier-version","2012-06-01")

// Get the glacier vaults in my account's us-west-2 region.
loSbResponseBody = createobject("CkStringBuilder")
llSuccess = loRest.FullRequestNoBodySb("GET","/AWS_ACCOUNT_ID/vaults",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()

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

lcMarker = loJson.StringOf("Marker")
i = 0
lnCount_i = loJson.SizeOfArray("VaultList")
do while i < lnCount_i
    loJson.I = i
    lcCreationDate = loJson.StringOf("VaultList[i].CreationDate")
    lcLastInventoryDate = loJson.StringOf("VaultList[i].LastInventoryDate")
    lnNumberOfArchives = loJson.IntOf("VaultList[i].NumberOfArchives")
    lnSizeInBytes = loJson.IntOf("VaultList[i].SizeInBytes")
    lcVaultARN = loJson.StringOf("VaultList[i].VaultARN")
    lcVaultName = loJson.StringOf("VaultList[i].VaultName")
    i = i + 1
enddo

// Sample response
// 
// {
//   "Marker": null,
//   "VaultList": [
//     {
//       "CreationDate": "2019-04-05T19:10:28.428Z",
//       "LastInventoryDate": null,
//       "NumberOfArchives": 0,
//       "SizeInBytes": 0,
//       "VaultARN": "arn:aws:glacier:us-west-2:954491834127:vaults/chilkat",
//       "VaultName": "chilkat"
//     },
//     {
//       "CreationDate": "2019-04-05T19:00:21.768Z",
//       "LastInventoryDate": null,
//       "NumberOfArchives": 0,
//       "SizeInBytes": 0,
//       "VaultARN": "arn:aws:glacier:us-west-2:954491834127:vaults/ocean",
//       "VaultName": "ocean"
//     }
//   ]
// }
// 


release loRest
release loAuthAws
release loSbResponseBody
release loJson