SQL Server

Demonstrate S3_DownloadBytes

Demonstrates how to download a file into memory from the Amazon S3 service. 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
    DECLARE @iTmp0 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 assumes the Chilkat HTTP API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

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

    EXEC sp_OASetProperty @http, 'AwsAccessKey', 'AWS_ACCESS_KEY'
    EXEC sp_OASetProperty @http, 'AwsSecretKey', 'AWS_SECRET_KEY'

    DECLARE @bucketName nvarchar(4000)
    SELECT @bucketName = 'chilkat.qa'
    DECLARE @objectName nvarchar(4000)
    SELECT @objectName = 'images/sea_creatures/starfish.jpg'
    DECLARE @localFilePath nvarchar(4000)
    SELECT @localFilePath = 'qa_output/starfish.jpg'

    EXEC sp_OAMethod @http, 'S3_DownloadBytes', @jpgBytes OUT, @bucketName, @objectName
    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        RETURN
      END


    PRINT 'Download successful.'

    DECLARE @fac int
    EXEC @hr = sp_OACreate 'Chilkat.FileAccess', @fac OUT

    EXEC sp_OAMethod @fac, 'WriteEntireFile', @success OUT, @localFilePath, @jpgBytes

    PRINT 'File saved success = ' + @success

    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @fac


END
GO