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(SQL Server) Send XMLHttpRequest using PUT, GET, DELETE, or any HTTP Request Method

The PostXml method is the easiest way to send an XMLHttpRequest using the POST HTTP verb (which is by far the most common). To use a different HTTP request method (such as PUT, GET, DELETE, etc.), the SynchronousRequest method should be called. It provides more flexibility in constructing the exact HTTP request desired.

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
    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
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Http', @http OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- The XML sent in the body of the request is application
    -- specified -- it should contain whatever the server-side
    -- application is expecting..
    DECLARE @xmlStr nvarchar(4000)
    SELECT @xmlStr = '<?xml version="1.0" encoding="UTF-8"?><appXml><something>123</something></appXml>'

    -- If the service endpoint is  "http://www.chilkatsoft.com/xmlEcho.asp",
    -- then we have the following arguments to be passed to
    -- SynchronousRequest:
    DECLARE @endpointDomain nvarchar(4000)
    SELECT @endpointDomain = 'www.chilkatsoft.com'
    DECLARE @endpointPort int
    SELECT @endpointPort = 80
    DECLARE @endpointSsl int
    SELECT @endpointSsl = 0

    -- Prepare the HTTP request object:
    DECLARE @req int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.HttpRequest', @req OUT

    EXEC sp_OASetProperty @req, 'Path', '/xmlEcho.asp'

    -- This example will use the "PUT" HTTP request method
    -- (also known as HTTP verb)
    EXEC sp_OASetProperty @req, 'HttpVerb', 'PUT'
    EXEC sp_OASetProperty @req, 'ContentType', 'text/xml'
    EXEC sp_OASetProperty @req, 'Charset', 'utf-8'
    DECLARE @success int
    EXEC sp_OAMethod @req, 'LoadBodyFromString', @success OUT, @xmlStr, 'utf-8'

    DECLARE @resp int
    EXEC sp_OAMethod @http, 'SynchronousRequest', @resp OUT, @endpointDomain, @endpointPort, @endpointSsl, @req
    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @req
        RETURN
      END

    -- The raw HTTP request sent by the above call is:

    -- PUT /xmlEcho.asp HTTP/1.1
    -- Content-Type: text/xml
    -- Host: www.chilkatsoft.com
    -- Content-Length: 81
    -- 
    -- <?xml version="1.0" encoding="UTF-8"?><appXml><something>123</something></appXml>

    -- Examine the Body of the HTTP response
    -- This would be the XML response sent by the server.
    EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
    PRINT @sTmp0

    EXEC @hr = sp_OADestroy @resp


    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @req


END
GO

 

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