Xbase++

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. Xbase++

LOCAL nSuccess
LOCAL oHttp
LOCAL oBdRequestBody
LOCAL oResp
LOCAL oSbResponseBody
LOCAL oJResp
LOCAL nRespStatusCode

nSuccess := 0

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

oHttp := CreateObject("Chilkat.Http")

//  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

oBdRequestBody := CreateObject("Chilkat.BinData")
nSuccess := oBdRequestBody:LoadFile("JSON_FILE_PATH")
IF (nSuccess != 1)
    ? "Failed to load JSON_FILE_PATH"
    oHttp:destroy()
    oBdRequestBody:destroy()
    RETURN
ENDIF

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

oResp := CreateObject("Chilkat.HttpResponse")
nSuccess := oHttp:HttpBd("PATCH", "https://storage.googleapis.com/storage/v1/b/BUCKET_NAME/o/OBJECT_NAME", oBdRequestBody, "application/json", oResp)
IF (nSuccess == 0)
    ? oHttp:LastErrorText
    oHttp:destroy()
    oBdRequestBody:destroy()
    oResp:destroy()
    RETURN
ENDIF

oSbResponseBody := CreateObject("Chilkat.StringBuilder")
oResp:GetBodySb(oSbResponseBody)

oJResp := CreateObject("Chilkat.JsonObject")
oJResp:LoadSb(oSbResponseBody)
oJResp:EmitCompact := 0

? "Response Body:"
? oJResp:Emit()

nRespStatusCode := oResp:StatusCode
? "Response Status Code = " + Str(nRespStatusCode)
IF (nRespStatusCode >= 400)
    ? "Response Header:"
    ? oResp:Header
    ? "Failed."
    oHttp:destroy()
    oBdRequestBody:destroy()
    oResp:destroy()
    oSbResponseBody:destroy()
    oJResp:destroy()
    RETURN
ENDIF

oHttp:destroy()
oBdRequestBody:destroy()
oResp:destroy()
oSbResponseBody:destroy()
oJResp:destroy()