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(SQL Server) Upload String to Google Cloud Storage

Demonstrates how to upload an in-memory string to Google Cloud Storage.

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

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

// Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
//
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    -- 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_9_5_0.StringBuilder', @sbToken OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    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_9_5_0.Http', @http OUT

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

    -- Create an XML document, and write it to a StringBuilder.
    -- We'll be uploading this XML document.
    DECLARE @xml int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Xml', @xml OUT

    EXEC sp_OASetProperty @xml, 'Tag', 'note'
    EXEC sp_OAMethod @xml, 'UpdateChildContent', NULL, 'to', 'Tove'
    EXEC sp_OAMethod @xml, 'UpdateChildContent', NULL, 'from', 'Jani'
    EXEC sp_OAMethod @xml, 'UpdateChildContent', NULL, 'heading', 'Reminder'
    EXEC sp_OAMethod @xml, 'UpdateChildContent', NULL, 'body', 'Don''t forget me this weekend!'

    -- Write the XML to sbXml.
    DECLARE @sbXml int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.StringBuilder', @sbXml OUT

    EXEC sp_OAMethod @xml, 'GetXmlSb', @success OUT, @sbXml

    -- sbXml contains this:

    -- <note>
    --     <to>Tove</to>
    --     <from>Jani</from>
    --     <heading>Reminder</heading>
    --     <body>Don't forget me this weekend!</body>
    -- </note>

    -- Construct a URL to upload to an object named "test.xml" 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', 'test.xml'
    DECLARE @url nvarchar(4000)
    SELECT @url = 'https://www.googleapis.com/upload/storage/v1/b/{$bucket_name}/o?uploadType=media&name={$object_name}'

    -- Note: The PTextSb method first appears in Chilkat v9.5.0.69
    DECLARE @resp int
    EXEC sp_OAMethod @http, 'PTextSb', @resp OUT, 'POST', @url, @sbXml, 'utf-8', 'application/xml', 0, 0
    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 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 @xml
        EXEC @hr = sp_OADestroy @sbXml
        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 @resp

        EXEC @hr = sp_OADestroy @sbToken
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @xml
        EXEC @hr = sp_OADestroy @sbXml
        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/test.xml/1502669565429870",
    --  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/test.xml",
    --  "name": "test.xml",
    --  "bucket": "chilkat-ocean",
    --  "generation": "1502669565429870",
    --  "metageneration": "1",
    --  "contentType": "application/xml",
    --  "timeCreated": "2017-08-14T00:12:45.379Z",
    --  "updated": "2017-08-14T00:12:45.379Z",
    --  "storageClass": "MULTI_REGIONAL",
    --  "timeStorageClassUpdated": "2017-08-14T00:12:45.379Z",
    --  "size": "181",
    --  "md5Hash": "TCR0L7TWsw2TzOvfNvgEfA==",
    --  "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/test.xml?generation=1502669565429870&alt=media",
    --  "crc32c": "ZFd5sA==",
    --  "etag": "CO6Qpq241dUCEAE="
    -- }

    EXEC @hr = sp_OADestroy @resp


    EXEC @hr = sp_OADestroy @sbToken
    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @xml
    EXEC @hr = sp_OADestroy @sbXml


END
GO

 

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