(SQL Server) Backblaze S3 Download File

See more Backblaze S3 Examples

Demonstrates how to download a file from a Backblaze bucket.

The Chilkat S3 functions in the HTTP class are compatible with the Backblaze service. However, because of some specific issues, Chilkat v9.5.0.89 or later is needed.

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
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    -- This requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @http int
    -- Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- keyID = Access Key ID or Access Key
    EXEC sp_OASetProperty @http, 'AwsAccessKey', 'access-key'

    -- applicationKey = Secret Access Key or Secret Key
    EXEC sp_OASetProperty @http, 'AwsSecretKey', 'secret-key'

    -- Region is the 2nd part of your S3 Endpoint
    EXEC sp_OASetProperty @http, 'AwsEndpoint', 's3.us-west-002.backblazeb2.com'

    DECLARE @bucketName nvarchar(4000)
    SELECT @bucketName = 'chilkat-test'
    DECLARE @objectName nvarchar(4000)
    SELECT @objectName = 'seahorse.jpg'
    DECLARE @localFilePath nvarchar(4000)
    SELECT @localFilePath = 'qa_output/seahorse.jpg'

    DECLARE @success int
    EXEC sp_OAMethod @http, 'S3_DownloadFile', @success OUT, @bucketName, @objectName, @localFilePath
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
      END
    ELSE
      BEGIN

        PRINT 'File downloaded.'
      END

    EXEC @hr = sp_OADestroy @http


END
GO