SQL Server

HTTP POST (Duplicate Simple HTML Form POST)

Demonstrates how to duplicate a simple HTML form POST. 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 requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @req int
    EXEC @hr = sp_OACreate 'Chilkat.HttpRequest', @req OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT

    -- This example simulates this FORM:
    -- <form action="echoPost.asp" method="post">
    -- First name: <input type="text" name="firstName"><br />
    -- Last name: <input type="text" name="lastName"><br />
    -- <input type="submit" value="Submit">
    -- </form>
    -- The online FORM is found at this URL:
    -- https://www.chilkatsoft.com/simpleForm.html

    -- Build an HTTP POST Request:
    EXEC sp_OASetProperty @req, 'HttpVerb', 'POST'

    -- The FORM target is http://www.chilkatsoft.com/processPost.asp
    -- An easy way of filling out most of the HTTP request object
    -- is to call SetFromUrl:
    EXEC sp_OAMethod @req, 'SetFromUrl', NULL, 'https://www.chilkatsoft.com/echoPost.asp'

    -- Send form params using application/x-www-form-urlencoded
    EXEC sp_OASetProperty @req, 'ContentType', 'application/x-www-form-urlencoded'

    -- The only remaining task is to add the params to the 
    -- HTTP request object:
    EXEC sp_OAMethod @req, 'AddParam', NULL, 'firstName', 'Matt'
    EXEC sp_OAMethod @req, 'AddParam', NULL, 'lastName', 'Jones'

    -- Send the HTTP POST and get the response.
    -- The POST is being sent to chilkatsoft.com, on port 443 (using TLS)
    DECLARE @domain nvarchar(4000)
    SELECT @domain = 'chilkatsoft.com'
    DECLARE @port int
    SELECT @port = 443
    DECLARE @tls int
    SELECT @tls = 1

    -- The HTTP POST is sent here:
    DECLARE @resp int
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @resp OUT

    EXEC sp_OAMethod @http, 'HttpSReq', @success OUT, @domain, @port, @tls, @req, @resp
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @req
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END

    -- Display the HTML source of the page returned.
    EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
    PRINT @sTmp0

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


END
GO