SQL Server

Upload In-Memory Binary Data to Google Cloud Storage

See more Google Cloud Storage Examples

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

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @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"

    -- 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..
    DECLARE @sbToken int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbToken OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OAMethod @sbToken, 'LoadFile', @success OUT, '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]"

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT

    -- Download a JPG image from the Internet, and then upload this JPG to
    -- a Google Storage bucket.
    DECLARE @jpgUrl nvarchar(4000)
    SELECT @jpgUrl = 'https://www.chilkatsoft.com/images/starfish.jpg'

    DECLARE @jpgData int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @jpgData OUT

    EXEC sp_OAMethod @http, 'DownloadBd', @success OUT, @jpgUrl, @jpgData
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sbToken
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @jpgData
        RETURN
      END

    EXEC sp_OAMethod @sbToken, 'GetAsString', @sTmp0 OUT
    EXEC sp_OASetProperty @http, 'AuthToken', @sTmp0

    -- Construct a URL to upload to an object named "starfish.jpg" in the "chilkat-ocean" bucket.
    EXEC sp_OAMethod @http, 'SetUrlVar', @success OUT, 'bucket_name', 'chilkat-ocean'
    EXEC sp_OAMethod @http, 'SetUrlVar', @success OUT, 'object_name', 'starfish.jpg'
    DECLARE @url nvarchar(4000)
    SELECT @url = 'https://www.googleapis.com/upload/storage/v1/b/{$bucket_name}/o?uploadType=media&name={$object_name}'

    DECLARE @resp int
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @resp OUT

    EXEC sp_OAMethod @http, 'HttpBd', @success OUT, 'POST', @url, @jpgData, 'image/jpeg', @resp
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sbToken
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @jpgData
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END

    DECLARE @responseCode int
    EXEC sp_OAGetProperty @resp, 'StatusCode', @responseCode OUT
    IF @responseCode = 401
      BEGIN
        EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
        PRINT @sTmp0

        PRINT 'If invalid credentials, then it is likely the access token expired.'

        PRINT 'Your app should automatically fetch a new access token and re-try.'
        EXEC @hr = sp_OADestroy @sbToken
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @jpgData
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END


    PRINT 'Response code: ' + @responseCode

    PRINT 'Response body'
    EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
    PRINT @sTmp0

    -- 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="
    -- }

    EXEC @hr = sp_OADestroy @sbToken
    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @jpgData
    EXEC @hr = sp_OADestroy @resp


END
GO