(SQL Server) S3 List Bucket Objects (using Chilkat REST)

Demonstrates how to fetch a list of objects in an S3 bucket.

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 example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

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

    -- Connect to the Amazon AWS REST server.
    DECLARE @bTls int
    SELECT @bTls = 1
    DECLARE @port int
    SELECT @port = 443
    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    DECLARE @success int
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 's3.amazonaws.com', @port, @bTls, @bAutoReconnect

    -- ----------------------------------------------------------------------------
    -- Important: For buckets created in regions outside us-east-1,
    -- there are three important changes that need to be made.
    -- See Working with S3 Buckets in Non-us-east-1 Regions for the details.
    -- ----------------------------------------------------------------------------

    -- Provide AWS credentials for the REST call.
    DECLARE @authAws int
    -- Use "Chilkat_9_5_0.AuthAws" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.AuthAws', @authAws OUT

    EXEC sp_OASetProperty @authAws, 'AccessKey', 'AWS_ACCESS_KEY'
    EXEC sp_OASetProperty @authAws, 'SecretKey', 'AWS_SECRET_KEY'
    EXEC sp_OASetProperty @authAws, 'ServiceName', 's3'
    EXEC sp_OAMethod @rest, 'SetAuthAws', @success OUT, @authAws

    --  Set the bucket name via the HOST header.
    --  In this case, the bucket name is "chilkat100".
    EXEC sp_OASetProperty @rest, 'Host', 'chilkat100.s3.amazonaws.com'

    DECLARE @sbResponse int
    -- Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbResponse OUT

    EXEC sp_OAMethod @rest, 'FullRequestNoBodySb', @success OUT, 'GET', '/', @sbResponse
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @authAws
        EXEC @hr = sp_OADestroy @sbResponse
        RETURN
      END

    DECLARE @statusCode int
    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @statusCode OUT

    PRINT 'Response status code = ' + @statusCode

    DECLARE @xml int
    -- Use "Chilkat_9_5_0.Xml" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Xml', @xml OUT

    EXEC sp_OAMethod @xml, 'LoadSb', @success OUT, @sbResponse, 1
    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0

    IF @statusCode <> 200
      BEGIN

        PRINT 'Failed.  See error information in the XML.'
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @authAws
        EXEC @hr = sp_OADestroy @sbResponse
        EXEC @hr = sp_OADestroy @xml
        RETURN
      END

    -- Use this online tool to generate code from sample XML: 
    -- Generate Code to Create XML

    DECLARE @Key nvarchar(4000)

    DECLARE @LastModified nvarchar(4000)

    DECLARE @ETag nvarchar(4000)

    DECLARE @SizeDecimalStr nvarchar(4000)

    DECLARE @ID nvarchar(4000)

    DECLARE @DisplayName nvarchar(4000)

    DECLARE @StorageClass nvarchar(4000)

    DECLARE @Name nvarchar(4000)
    EXEC sp_OAMethod @xml, 'GetChildContent', @Name OUT, 'Name'
    DECLARE @MaxKeys int
    EXEC sp_OAMethod @xml, 'GetChildIntValue', @MaxKeys OUT, 'MaxKeys'
    DECLARE @IsTruncated nvarchar(4000)
    EXEC sp_OAMethod @xml, 'GetChildContent', @IsTruncated OUT, 'IsTruncated'
    DECLARE @i int
    SELECT @i = 0
    DECLARE @count_i int
    EXEC sp_OAMethod @xml, 'NumChildrenHavingTag', @count_i OUT, 'Contents'
    WHILE @i < @count_i
      BEGIN
        EXEC sp_OASetProperty @xml, 'I', @i
        EXEC sp_OAMethod @xml, 'GetChildContent', @Key OUT, 'Contents[i]|Key'
        EXEC sp_OAMethod @xml, 'GetChildContent', @LastModified OUT, 'Contents[i]|LastModified'
        EXEC sp_OAMethod @xml, 'GetChildContent', @ETag OUT, 'Contents[i]|ETag'
        EXEC sp_OAMethod @xml, 'GetChildContent', @SizeDecimalStr OUT, 'Contents[i]|Size'
        EXEC sp_OAMethod @xml, 'GetChildContent', @ID OUT, 'Contents[i]|Owner|ID'
        EXEC sp_OAMethod @xml, 'GetChildContent', @DisplayName OUT, 'Contents[i]|Owner|DisplayName'
        EXEC sp_OAMethod @xml, 'GetChildContent', @StorageClass OUT, 'Contents[i]|StorageClass'
        SELECT @i = @i + 1
      END

    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @authAws
    EXEC @hr = sp_OADestroy @sbResponse
    EXEC @hr = sp_OADestroy @xml


END
GO