(SQL Server) Example: Http.QuickGet method

Demonstrates the QuickGet method.

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)
    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, 'KeepResponseBody', 1

    -- This URL is valid and can be tested...

    EXEC sp_OAMethod @http, 'QuickGet', @zipBytes OUT, 'https://chilkatdownload.com/example_data/hamlet.zip'
    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

    EXEC sp_OAGetProperty @http, 'LastStatus', @iTmp0 OUT
    IF @iTmp0 <> 200
      BEGIN

        EXEC sp_OAGetProperty @http, 'LastStatus', @iTmp0 OUT
        PRINT 'Response status code: ' + @iTmp0
        EXEC sp_OAGetProperty @http, 'LastResponseBody', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        RETURN
      END

    DECLARE @zip int
    EXEC @hr = sp_OACreate 'Chilkat.Zip', @zip OUT

    -- Open the zip from the bytes contained in bd.
    EXEC sp_OAMethod @zip, 'OpenFromMemory', @success OUT, @zipBytes
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @zip
        RETURN
      END

    -- Get the entry for the file we want..
    DECLARE @entry int
    EXEC @hr = sp_OACreate 'Chilkat.ZipEntry', @entry OUT

    EXEC sp_OAMethod @zip, 'EntryOf', @success OUT, 'hamlet.xml', @entry
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @zip
        EXEC @hr = sp_OADestroy @entry
        RETURN
      END

    -- Convert all line endings to CRLF (if needed)
    DECLARE @lineEndingBehavior int
    SELECT @lineEndingBehavior = 2
    DECLARE @xmlStr nvarchar(4000)
    EXEC sp_OAMethod @entry, 'UnzipToString', @xmlStr OUT, @lineEndingBehavior, 'utf-8'
    EXEC sp_OAGetProperty @entry, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @entry, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @zip
        EXEC @hr = sp_OADestroy @entry
        RETURN
      END

    -- The XML in this case is about 274K, so let's just examine the last 20 lines...
    DECLARE @sb int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sb OUT

    EXEC sp_OAMethod @sb, 'Append', @success OUT, @xmlStr

    EXEC sp_OAMethod @sb, 'LastNLines', @sTmp0 OUT, 20, 1
    PRINT @sTmp0

    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @zip
    EXEC @hr = sp_OADestroy @entry
    EXEC @hr = sp_OADestroy @sb


END
GO