PowerBuilder

Google Cloud Storage List Buckets

See more Google Cloud Storage Examples

Demonstrates how to retrieve a list of buckets for a given project. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_JsonToken
oleobject loo_Http
oleobject loo_Resp
integer li_ResponseCode
oleobject loo_Json
string ls_Kind
integer i
integer li_Count_i
string ls_Id
string ls_SelfLink
string ls_ProjectNumber
string ls_Name
string ls_TimeCreated
string ls_Updated
string ls_Metageneration
integer li_IamConfigurationBucketPolicyOnlyEnabled
string ls_Location
string ls_StorageClass
string ls_Etag

li_Success = 0

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

// This example uses a previously obtained access token having permission for the 
// scope "https://www.googleapis.com/auth/cloud-platform"

loo_JsonToken = create oleobject
li_rc = loo_JsonToken.ConnectToNewObject("Chilkat.JsonObject")
if li_rc < 0 then
    destroy loo_JsonToken
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_JsonToken.LoadFile("qa_data/tokens/googleCloudStorage.json")
if li_Success = 0 then
    Write-Debug loo_JsonToken.LastErrorText
    destroy loo_JsonToken
    return
end if

loo_Http = create oleobject
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")

loo_Http.AuthToken = loo_JsonToken.StringOf("access_token")

// For more info see Cloud Storage Documentation - Buckets: list 
// 
li_Success = loo_Http.SetUrlVar("PROJECT_ID","chilkattest-1050")
loo_Resp = create oleobject
li_rc = loo_Resp.ConnectToNewObject("Chilkat.HttpResponse")

li_Success = loo_Http.HttpNoBody("GET","https://www.googleapis.com/storage/v1/b?project={$PROJECT_ID}",loo_Resp)
if li_Success = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_JsonToken
    destroy loo_Http
    destroy loo_Resp
    return
end if

li_ResponseCode = loo_Resp.StatusCode
if li_ResponseCode = 401 then
    Write-Debug loo_Resp.BodyStr
    Write-Debug "If invalid credentials, then it is likely the access token expired."
    Write-Debug "Your app should automatically fetch a new access token and re-try."
    destroy loo_JsonToken
    destroy loo_Http
    destroy loo_Resp
    return
end if

Write-Debug "Response code: " + string(li_ResponseCode)
Write-Debug "Response body"

loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

li_Success = loo_Json.Load(loo_Resp.BodyStr)

loo_Json.EmitCompact = 0

Write-Debug loo_Json.Emit()

// A response code = 200 indicates success, and the response body contains JSON such as this:

// {
//   "kind": "storage#buckets",
//   "items": [
//     {
//       "kind": "storage#bucket",
//       "id": "chilkat-bucket",
//       "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-bucket",
//       "projectNumber": "5332332985",
//       "name": "chilkat-bucket",
//       "timeCreated": "2018-10-23T00:04:44.507Z",
//       "updated": "2018-10-23T00:04:44.507Z",
//       "metageneration": "1",
//       "iamConfiguration": {
//         "bucketPolicyOnly": {
//           "enabled": false
//         }
//       },
//       "location": "US",
//       "storageClass": "MULTI_REGIONAL",
//       "etag": "CAE="
//     },
//     {
//       "kind": "storage#bucket",
//       "id": "chilkat-images",
//       "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-images",
//       "projectNumber": "5332332985",
//       "name": "chilkat-images",
//       "timeCreated": "2018-10-23T11:24:43.000Z",
//       "updated": "2018-10-23T11:24:43.000Z",
//       "metageneration": "1",
//       "iamConfiguration": {
//         "bucketPolicyOnly": {
//           "enabled": false
//         }
//       },
//       "location": "US",
//       "storageClass": "MULTI_REGIONAL",
//       "etag": "CAE="
//     }
//   ]
// }

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

ls_Kind = loo_Json.StringOf("kind")
i = 0
li_Count_i = loo_Json.SizeOfArray("items")
do while i < li_Count_i
    loo_Json.I = i
    ls_Kind = loo_Json.StringOf("items[i].kind")
    ls_Id = loo_Json.StringOf("items[i].id")
    ls_SelfLink = loo_Json.StringOf("items[i].selfLink")
    ls_ProjectNumber = loo_Json.StringOf("items[i].projectNumber")
    ls_Name = loo_Json.StringOf("items[i].name")
    ls_TimeCreated = loo_Json.StringOf("items[i].timeCreated")
    ls_Updated = loo_Json.StringOf("items[i].updated")
    ls_Metageneration = loo_Json.StringOf("items[i].metageneration")
    li_IamConfigurationBucketPolicyOnlyEnabled = loo_Json.BoolOf("items[i].iamConfiguration.bucketPolicyOnly.enabled")
    ls_Location = loo_Json.StringOf("items[i].location")
    ls_StorageClass = loo_Json.StringOf("items[i].storageClass")
    ls_Etag = loo_Json.StringOf("items[i].etag")
    i = i + 1
loop


destroy loo_JsonToken
destroy loo_Http
destroy loo_Resp
destroy loo_Json