(PowerBuilder) Upload In-Memory Binary Data to Google Cloud Storage

Demonstrates how to upload in-memory binary data to Google Cloud Storage.

Note: This example requires Chilkat v9.5.0.69 or later because it uses the http.PBinaryBd method.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_SbToken
oleobject loo_Http
string ls_JpgUrl
oleobject loo_JpgData
integer li_Success
string ls_Url
oleobject loo_Resp
integer li_ResponseCode

// 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"

// In this example, Get Google Cloud Storage OAuth2 Access Token, 
// the service account access token was saved to a text file.  This example fetches the access token from the file..
loo_SbToken = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbToken.ConnectToNewObject("Chilkat.StringBuilder")
if li_rc < 0 then
    destroy loo_SbToken
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_SbToken.LoadFile("qa_data/tokens/googleCloudStorageAccessToken.txt","utf-8")

// Send a POST equivalent to this curl command.
// The content of the file is contained in the request body.

// curl -X POST --data-binary @[OBJECT] \
//     -H "Authorization: Bearer [OAUTH2_TOKEN]" \
//     -H "Content-Type: [OBJECT_CONTENT_TYPE]" \
//     "https://www.googleapis.com/upload/storage/v1/b/[BUCKET_NAME]/o?uploadType=media&name=[OBJECT_NAME]"

loo_Http = create oleobject
// Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")

// Download a JPG image from the Internet, and then upload this JPG to
// a Google Storage bucket.
ls_JpgUrl = "https://www.chilkatsoft.com/images/starfish.jpg"

loo_JpgData = create oleobject
// Use "Chilkat_9_5_0.BinData" for versions of Chilkat < 10.0.0
li_rc = loo_JpgData.ConnectToNewObject("Chilkat.BinData")

li_Success = loo_Http.DownloadBd(ls_JpgUrl,loo_JpgData)
if li_Success <> 1 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_SbToken
    destroy loo_Http
    destroy loo_JpgData
    return
end if

loo_Http.AuthToken = loo_SbToken.GetAsString()

// Construct a URL to upload to an object named "starfish.jpg" in the "chilkat-ocean" bucket.
loo_Http.SetUrlVar("bucket_name","chilkat-ocean")
loo_Http.SetUrlVar("object_name","starfish.jpg")
ls_Url = "https://www.googleapis.com/upload/storage/v1/b/{$bucket_name}/o?uploadType=media&name={$object_name}"

// Note: The PBinaryBd method first appears in Chilkat v9.5.0.69
loo_Resp = loo_Http.PBinaryBd("POST",ls_Url,loo_JpgData,"image/jpeg",0,0)
if loo_Http.LastMethodSuccess = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_SbToken
    destroy loo_Http
    destroy loo_JpgData
    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_Resp
    destroy loo_SbToken
    destroy loo_Http
    destroy loo_JpgData
    return
end if

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

// A successful response looks like this:
// Response code: 200
// Response body
// {
//  "kind": "storage#object",
//  "id": "chilkat-ocean/starfish.jpg/1502670320090292",
//  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/starfish.jpg",
//  "name": "starfish.jpg",
//  "bucket": "chilkat-ocean",
//  "generation": "1502670320090292",
//  "metageneration": "1",
//  "contentType": "image/jpeg",
//  "timeCreated": "2017-08-14T00:25:20.040Z",
//  "updated": "2017-08-14T00:25:20.040Z",
//  "storageClass": "MULTI_REGIONAL",
//  "timeStorageClassUpdated": "2017-08-14T00:25:20.040Z",
//  "size": "6229",
//  "md5Hash": "LpxZ2/JmI2fcl9/dqF2gSA==",
//  "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/starfish.jpg?generation=1502670320090292&alt=media",
//  "crc32c": "9RjgwQ==",
//  "etag": "CLT5kpW71dUCEAE="
// }

destroy loo_Resp


destroy loo_SbToken
destroy loo_Http
destroy loo_JpgData