(SQL Server) QuickDeleteStr Example

Sends a DELETE request to a URL. The URL can potentially include params, and custom request headers can be added.

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

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

    DECLARE @statusCode int

    -- Specifiy a session log file so we can see the exact request/response
    EXEC sp_OASetProperty @http, 'SessionLogFilename', 'c:/aaworkarea/sessionLog.txt'

    -- Perhaps add a custom header or two..
    EXEC sp_OAMethod @http, 'SetRequestHeader', NULL, 'x-exz-date', '20201012T235046Z'
    EXEC sp_OAMethod @http, 'SetRequestHeader', NULL, 'x-exz-id', '1234'

    -- Send a DELETE request to https://www.example.com/someting?param1=123&param2=abc
    DECLARE @url nvarchar(4000)
    SELECT @url = 'https://www.example.com/someting?param1=123&param2=abc'
    DECLARE @reponseBodyStr nvarchar(4000)
    EXEC sp_OAMethod @http, 'QuickDeleteStr', @reponseBodyStr OUT, @url
    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        -- This will happen if the response status code was 400 or greater,
        -- or if the request could not be sent, or if no response was received.
        EXEC sp_OAGetProperty @http, 'LastStatus', @statusCode OUT

        PRINT 'Response status: ' + @statusCode

        IF @statusCode = 0
          BEGIN
            -- There was an error in communications.  
            EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
            PRINT @sTmp0
          END
        ELSE
          BEGIN
            -- We received a response status code indicating failure.
            -- Examine the response body.
            EXEC sp_OAGetProperty @http, 'LastResponseBody', @sTmp0 OUT
            PRINT @sTmp0
          END

        EXEC @hr = sp_OADestroy @http
        RETURN
      END

    -- The DELETE request that is sent looks like this.
    -- The Accept and Accept-Encoding headers are automatically added by default.

    -- 	DELETE /someting?param1=123&param2=abc HTTP/1.1
    -- 	Host: www.example.com
    -- 	Accept: */*
    -- 	Accept-Encoding: gzip
    -- 	x-exz-date: 20201012T235046Z
    -- 	x-exz-id: 1234

    -- Get the response status
    EXEC sp_OAGetProperty @http, 'LastStatus', @statusCode OUT

    PRINT 'Response status: ' + @statusCode

    -- Show the response body

    PRINT @reponseBodyStr

    EXEC @hr = sp_OADestroy @http


END
GO