SQL Server

Create S3 Pre-Signed URL for Upload

See more Amazon S3 Examples

Demonstrates how to generate a pre-signed URL for S3 uploads. 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 requires the Chilkat 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'

    -- Make sure to set your AWS region correctly
    EXEC sp_OASetProperty @http, 'AwsRegion', 'us-east-1'

    DECLARE @bucketName nvarchar(4000)
    SELECT @bucketName = 'chilkat200'
    DECLARE @objectName nvarchar(4000)
    SELECT @objectName = 'starfish/starfish.jpg'
    DECLARE @awsService nvarchar(4000)
    SELECT @awsService = 's3'
    DECLARE @httpVerb nvarchar(4000)
    SELECT @httpVerb = 'PUT'

    -- The signed URL will be valid for this number of seconds:
    DECLARE @numSecondsValid int
    SELECT @numSecondsValid = 86400

    -- Choose between a URL beginning with "http://" or "https://"...
    DECLARE @bUseHttps int
    SELECT @bUseHttps = 1

    -- Generate the pre-signed URL
    DECLARE @preSignedUrl nvarchar(4000)
    EXEC sp_OAMethod @http, 'S3_GenPresignedUrl', @preSignedUrl OUT, @httpVerb, @bUseHttps, @bucketName, @objectName, @numSecondsValid, @awsService
    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        RETURN
      END


    PRINT 'Presigned URL for Upload: ' + @preSignedUrl

    -- Here's an example of a pre-signed URL
    -- 
    -- http://chilkat200.s3.amazonaws.com/starfish/starfish.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIBJLOVZVXAU2AFUA%2F20200623%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20200623T234049Z&X-Amz-Expires=86400&X-Amz-SignedHeaders=host&X-Amz-Signature=xxxxxeaea071178d772856c0a4e4c0114a8d9992f0d0812955e490d0exxxxxxx
    -- 

    -- You can use the pre-signed URL to upload from Chilkat
    -- For example, upload by streaming from a local file
    DECLARE @resp int
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @resp OUT

    EXEC sp_OAMethod @http, 'HttpFile', @success OUT, 'PUT', @preSignedUrl, 'qa_data/jpg/starfish.jpg', 'image/jpg', @resp
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END


    EXEC sp_OAGetProperty @resp, 'StatusCode', @iTmp0 OUT
    PRINT 'response status code = ' + @iTmp0

    EXEC sp_OAGetProperty @resp, 'ContentLength', @iTmp0 OUT
    PRINT 'response body size: ' + @iTmp0
    EXEC sp_OAGetProperty @resp, 'ContentLength', @iTmp0 OUT
    IF @iTmp0 > 0
      BEGIN

        PRINT 'response body:'
        EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
        PRINT @sTmp0
      END

    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @resp


END
GO