SQL Server

Replace or Remove Default HTTP Headers

See more HTTP Examples

Shows how to replace or remove default HTTP headers.

Also see: Chilkat Http Default and Auto-Filled Headers

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
    -- 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 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

    -- The following request will be sent.
    -- The Accept and Accept-Encoding headers are default headers added by Chilkat.

    -- GET /helloWorld.txt HTTP/1.1
    -- Host: chilkatsoft.com
    -- Accept: */*
    -- Accept-Encoding: gzip

    DECLARE @responseBody nvarchar(4000)
    EXEC sp_OAMethod @http, 'QuickGetStr', @responseBody OUT, 'https://chilkatsoft.com/helloWorld.txt'
    -- Examine the request header we just sent..
    EXEC sp_OAGetProperty @http, 'LastHeader', @sTmp0 OUT
    PRINT @sTmp0

    PRINT '----'

    -- Remove the default headers:
    EXEC sp_OAMethod @http, 'RemoveRequestHeader', NULL, 'Accept'
    EXEC sp_OAMethod @http, 'RemoveRequestHeader', NULL, 'Accept-Encoding'

    -- Send a request with the following header:

    -- GET /helloWorld.txt HTTP/1.1
    -- Host: chilkatsoft.com

    EXEC sp_OAMethod @http, 'QuickGetStr', @responseBody OUT, 'https://chilkatsoft.com/helloWorld.txt'
    EXEC sp_OAGetProperty @http, 'LastHeader', @sTmp0 OUT
    PRINT @sTmp0

    EXEC @hr = sp_OADestroy @http


END
GO