(SQL Server) OSS Download String (Alibaba Cloud)

See more Alibaba Cloud OSS Examples

Demonstrates how to download a textual object into a string variable.

The Chilkat S3 functions in the HTTP class are compatible with Alibaba Cloud's OSS service.

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
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    -- This example assumes 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

    -- Insert your AccessKey ID here:
    EXEC sp_OASetProperty @http, 'AwsAccessKey', 'access-key'

    -- Insert your AccessKey Secret here:
    EXEC sp_OASetProperty @http, 'AwsSecretKey', 'secret-key'

    -- To download from a bucket located in a different region, use the endpoint for that region, such as "oss-cn-hangzhou.aliyuncs.com 	"
    -- See Alibaba Object Storage Service Regions and Endpoints
    EXEC sp_OASetProperty @http, 'AwsEndpoint', 'oss-us-east-1.aliyuncs.com'

    DECLARE @bucketName nvarchar(4000)
    SELECT @bucketName = 'chilkat'
    DECLARE @objectName nvarchar(4000)
    SELECT @objectName = 'orchard.json'

    -- This is the byte representation of the text file downloaded from Aliyun.
    -- It must be specified to allow Chilkat to correctly interpret the bytes as characters.
    DECLARE @charset nvarchar(4000)
    SELECT @charset = 'utf-8'

    DECLARE @fileContents nvarchar(4000)
    EXEC sp_OAMethod @http, 'S3_DownloadString', @fileContents OUT, @bucketName, @objectName, @charset

    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
      END
    ELSE
      BEGIN

        PRINT @fileContents

        PRINT 'Success.'
      END

    EXEC @hr = sp_OADestroy @http


END
GO