(Lianja) Google Cloud Storage List Buckets

See more Google Cloud Storage Examples

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

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// 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"

loJsonToken = createobject("CkJsonObject")
llSuccess = loJsonToken.LoadFile("qa_data/tokens/googleCloudStorage.json")
if (llSuccess = .F.) then
    ? loJsonToken.LastErrorText
    release loJsonToken
    return
endif

loHttp = createobject("CkHttp")
loHttp.AuthToken = loJsonToken.StringOf("access_token")

// For more info see Cloud Storage Documentation - Buckets: list 
// 
llSuccess = loHttp.SetUrlVar("PROJECT_ID","chilkattest-1050")
loResp = loHttp.QuickGetObj("https://www.googleapis.com/storage/v1/b?project={$PROJECT_ID}")
if (loHttp.LastMethodSuccess = .F.) then
    ? loHttp.LastErrorText
    release loJsonToken
    release loHttp
    return
endif

lnResponseCode = loResp.StatusCode
if (lnResponseCode = 401) then
    ? loResp.BodyStr
    ? "If invalid credentials, then it is likely the access token expired."
    ? "Your app should automatically fetch a new access token and re-try."
    release loResp
    release loJsonToken
    release loHttp
    return
endif

? "Response code: " + str(lnResponseCode)
? "Response body"

loJson = createobject("CkJsonObject")
llSuccess = loJson.Load(loResp.BodyStr)
release loResp

loJson.EmitCompact = .F.

? loJson.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

lcKind = loJson.StringOf("kind")
i = 0
lnCount_i = loJson.SizeOfArray("items")
do while i < lnCount_i
    loJson.I = i
    lcKind = loJson.StringOf("items[i].kind")
    lcId = loJson.StringOf("items[i].id")
    lcSelfLink = loJson.StringOf("items[i].selfLink")
    lcProjectNumber = loJson.StringOf("items[i].projectNumber")
    lcName = loJson.StringOf("items[i].name")
    lcTimeCreated = loJson.StringOf("items[i].timeCreated")
    lcUpdated = loJson.StringOf("items[i].updated")
    lcMetageneration = loJson.StringOf("items[i].metageneration")
    llIamConfigurationBucketPolicyOnlyEnabled = loJson.BoolOf("items[i].iamConfiguration.bucketPolicyOnly.enabled")
    lcLocation = loJson.StringOf("items[i].location")
    lcStorageClass = loJson.StringOf("items[i].storageClass")
    lcEtag = loJson.StringOf("items[i].etag")
    i = i + 1
enddo


release loJsonToken
release loHttp
release loJson