(Lianja) Google Cloud Storage: Update Object Metadata

See more Google Cloud Storage Examples

Demonstrates how to update (edit) the metadata associated with an object in a Google Cloud Storage bucket.

For more information, see https://cloud.google.com/storage/docs/viewing-editing-metadata#edit

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

loHttp = createobject("CkHttp")

// Implements the following CURL command:

// curl -X PATCH --data-binary @JSON_FILE_NAME \
//   -H "Authorization: Bearer OAUTH2_TOKEN" \
//   -H "Content-Type: application/json" \
//   "https://storage.googleapis.com/storage/v1/b/BUCKET_NAME/o/OBJECT_NAME"

// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code

loBdRequestBody = createobject("CkBinData")
llSuccess = loBdRequestBody.LoadFile("JSON_FILE_PATH")
if (llSuccess <> .T.) then
    ? "Failed to load JSON_FILE_PATH"
    release loHttp
    release loBdRequestBody
    return
endif

// Adds the "Authorization: Bearer OAUTH2_TOKEN" header.
loHttp.AuthToken = "OAUTH2_TOKEN"

loResp = loHttp.PBinaryBd("PATCH","https://storage.googleapis.com/storage/v1/b/BUCKET_NAME/o/OBJECT_NAME",loBdRequestBody,"application/json",.F.,.F.)
if (loHttp.LastMethodSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    release loBdRequestBody
    return
endif

loSbResponseBody = createobject("CkStringBuilder")
loResp.GetBodySb(loSbResponseBody)

loJResp = createobject("CkJsonObject")
loJResp.LoadSb(loSbResponseBody)
loJResp.EmitCompact = .F.

? "Response Body:"
? loJResp.Emit()

lnRespStatusCode = loResp.StatusCode
? "Response Status Code = " + str(lnRespStatusCode)
if (lnRespStatusCode >= 400) then
    ? "Response Header:"
    ? loResp.Header
    ? "Failed."
    release loResp
    release loHttp
    release loBdRequestBody
    release loSbResponseBody
    release loJResp
    return
endif

release loResp


release loHttp
release loBdRequestBody
release loSbResponseBody
release loJResp