SQL Server Requires Chilkat v11.0.0+

Get Size of File on Web Server

See more HTTP Examples

Demonstrates how to send a HEAD request to fetch information about a file on a web server, which hopefully includes the Content-Length in the response header. 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
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    --  This example assumes 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

    DECLARE @resp int
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @resp OUT

    EXEC sp_OAMethod @http, 'HttpNoBody', @success OUT, 'HEAD', 'https://nodejs.org/dist/v10.16.1/node-v10.16.1-win-x64.zip', @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

    --  Examine the response header.
    EXEC sp_OAGetProperty @resp, 'Header', @sTmp0 OUT
    PRINT @sTmp0

    --  Here is a sample response header:

    --  Date: Thu, 01 Aug 2019 12:47:27 GMT
    --  Content-Type: application/zip
    --  Content-Length: 17457922
    --  Connection: keep-alive
    --  Set-Cookie: __cfduid=da5b78dcdd8171683c5a578eb9c9f88c81564663647; expires=Fri, 31-Jul-20 12:47:27 GMT; path=/; domain=.nodejs.org; HttpOnly
    --  Last-Modified: Wed, 31 Jul 2019 18:21:57 GMT
    --  ETag: "5d41dc45-10a6302"
    --  Accept-Ranges: bytes
    --  Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
    --  Server: cloudflare
    --  CF-RAY: 4ff7ebb32ac4e1e2-ORD

    --  Get the Content-Length header.
    DECLARE @contentLengthStr nvarchar(4000)
    EXEC sp_OAMethod @resp, 'GetHeaderField', @contentLengthStr OUT, 'Content-Length'
    --  If the header exists...
    EXEC sp_OAGetProperty @resp, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 1
      BEGIN

        PRINT 'Content-Length: ' + @contentLengthStr
        --  Your application can convert the contentLengthStr to an integer and then use it....
      END

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


END
GO