PowerBuilder Google Cloud Storage: Copy File (Object) to another Bucket

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Copies a fie (also known as an object) to another Google Cloud Storage bucket. This example copies the file "starfish.jpg" from the "chilkat-test" bucket to the "chilkat-images" bucket. In Google Cloud Storage, moving a file to a new bucket is a 2-step operation: First copy the file, then delete the original.

Documentation: https://cloud.google.com/storage/docs/renaming-copying-moving-objects

CURL Command

curl -X POST https://www.googleapis.com/storage/v1/b/chilkat-bucket/o/starfish.jpg/rewriteTo/b/chilkat-images/o/starfish.jpg?project=MY_CLOUD_STORAGE_PROJECT \
    --header "Authorization: Bearer CLOUD_STORAGE_TOKEN"

PowerBuilder Example

integer li_rc
oleobject loo_Rest
integer li_Success
integer li_BTls
integer li_Port
integer li_BAutoReconnect
oleobject loo_SbResponseBody
integer li_RespStatusCode
oleobject loo_JsonResponse
string ls_Kind
string ls_TotalBytesRewritten
string ls_ObjectSize
integer li_Done
string ls_ResourceKind
string ls_ResourceId
string ls_ResourceSelfLink
string ls_ResourceName
string ls_ResourceBucket
string ls_ResourceGeneration
string ls_ResourceMetageneration
string ls_ResourceContentType
string ls_ResourceTimeCreated
string ls_ResourceUpdated
string ls_ResourceStorageClass
string ls_ResourceTimeStorageClassUpdated
string ls_ResourceSize
string ls_ResourceMd5Hash
string ls_ResourceMediaLink
string ls_ResourceCrc32c
string ls_ResourceEtag

loo_Rest = create oleobject
li_rc = loo_Rest.ConnectToNewObject("Chilkat_9_5_0.Rest")
if li_rc < 0 then
    destroy loo_Rest
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  URL: https://www.googleapis.com/storage/v1/b/chilkat-bucket/o/starfish.jpg/rewriteTo/b/chilkat-images/o/starfish.jpg?project=MY_CLOUD_STORAGE_PROJECT
li_BTls = 1
li_Port = 443
li_BAutoReconnect = 1
li_Success = loo_Rest.Connect("www.googleapis.com",li_Port,li_BTls,li_BAutoReconnect)
if li_Success <> 1 then
    Write-Debug "ConnectFailReason: " + string(loo_Rest.ConnectFailReason)
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Rest
    return
end if

loo_Rest.AddHeader("Authorization","Bearer CLOUD_STORAGE_TOKEN")

loo_SbResponseBody = create oleobject
li_rc = loo_SbResponseBody.ConnectToNewObject("Chilkat_9_5_0.StringBuilder")

li_Success = loo_Rest.FullRequestNoBodySb("POST","/storage/v1/b/chilkat-bucket/o/starfish.jpg/rewriteTo/b/chilkat-images/o/starfish.jpg?project=MY_CLOUD_STORAGE_PROJECT",loo_SbResponseBody)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Rest
    destroy loo_SbResponseBody
    return
end if

li_RespStatusCode = loo_Rest.ResponseStatusCode
if li_RespStatusCode >= 400 then
    Write-Debug "Response Status Code = " + string(li_RespStatusCode)
    Write-Debug "Response Header:"
    Write-Debug loo_Rest.ResponseHeader
    Write-Debug "Response Body:"
    Write-Debug loo_SbResponseBody.GetAsString()
    destroy loo_Rest
    destroy loo_SbResponseBody
    return
end if

loo_JsonResponse = create oleobject
li_rc = loo_JsonResponse.ConnectToNewObject("Chilkat_9_5_0.JsonObject")

loo_JsonResponse.LoadSb(loo_SbResponseBody)

//  See the Online Tool for Generating JSON Parse Code

ls_Kind = loo_JsonResponse.StringOf("kind")
ls_TotalBytesRewritten = loo_JsonResponse.StringOf("totalBytesRewritten")
ls_ObjectSize = loo_JsonResponse.StringOf("objectSize")
li_Done = loo_JsonResponse.BoolOf("done")
ls_ResourceKind = loo_JsonResponse.StringOf("resource.kind")
ls_ResourceId = loo_JsonResponse.StringOf("resource.id")
ls_ResourceSelfLink = loo_JsonResponse.StringOf("resource.selfLink")
ls_ResourceName = loo_JsonResponse.StringOf("resource.name")
ls_ResourceBucket = loo_JsonResponse.StringOf("resource.bucket")
ls_ResourceGeneration = loo_JsonResponse.StringOf("resource.generation")
ls_ResourceMetageneration = loo_JsonResponse.StringOf("resource.metageneration")
ls_ResourceContentType = loo_JsonResponse.StringOf("resource.contentType")
ls_ResourceTimeCreated = loo_JsonResponse.StringOf("resource.timeCreated")
ls_ResourceUpdated = loo_JsonResponse.StringOf("resource.updated")
ls_ResourceStorageClass = loo_JsonResponse.StringOf("resource.storageClass")
ls_ResourceTimeStorageClassUpdated = loo_JsonResponse.StringOf("resource.timeStorageClassUpdated")
ls_ResourceSize = loo_JsonResponse.StringOf("resource.size")
ls_ResourceMd5Hash = loo_JsonResponse.StringOf("resource.md5Hash")
ls_ResourceMediaLink = loo_JsonResponse.StringOf("resource.mediaLink")
ls_ResourceCrc32c = loo_JsonResponse.StringOf("resource.crc32c")
ls_ResourceEtag = loo_JsonResponse.StringOf("resource.etag")


destroy loo_Rest
destroy loo_SbResponseBody
destroy loo_JsonResponse

Sample JSON Response Body

{
  "kind": "storage#rewriteResponse",
  "totalBytesRewritten": "6229",
  "objectSize": "6229",
  "done": true,
  "resource": {
    "kind": "storage#object",
    "id": "chilkat-images/starfish.jpg/1540298057547474",
    "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-images/o/starfish.jpg",
    "name": "starfish.jpg",
    "bucket": "chilkat-images",
    "generation": "1540298057547474",
    "metageneration": "1",
    "contentType": "image/jpeg",
    "timeCreated": "2018-10-23T12:34:17.547Z",
    "updated": "2018-10-23T12:34:17.547Z",
    "storageClass": "MULTI_REGIONAL",
    "timeStorageClassUpdated": "2018-10-23T12:34:17.547Z",
    "size": "6229",
    "md5Hash": "LpxZ2/JmI2fcl9/dqF2gSA==",
    "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-images/o/starfish.jpg?generation=1540298057547474&alt=media",
    "crc32c": "9RjgwQ==",
    "etag": "CNL9xbTJnN4CEAE="
  }
}