SQL Server

HTTP POST x-www-form-urlencoded

Demonstrates how to send a simple x-www-form-urlencoded 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
    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

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

    DECLARE @jsonStr nvarchar(4000)
    SELECT @jsonStr = '{ some json ... }'

    DECLARE @req int
    EXEC @hr = sp_OACreate 'Chilkat.HttpRequest', @req OUT

    -- This query parameter just happens to be named "json" and contains JSON text.
    EXEC sp_OAMethod @req, 'AddParam', NULL, 'json', @jsonStr

    -- We can optionally add more query parameters. 
    EXEC sp_OAMethod @req, 'AddParam', NULL, 'abc', '123'
    EXEC sp_OAMethod @req, 'AddParam', NULL, 'xml', '<abc>123</abc>'

    -- Note: Just because we passed a query param named "json" or "xml" means nothing special.  It's still just
    -- a name=value query parameter..

    EXEC sp_OASetProperty @req, 'HttpVerb', 'POST'
    EXEC sp_OASetProperty @req, 'ContentType', 'application/x-www-form-urlencoded'

    DECLARE @resp int
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @resp OUT

    EXEC sp_OAMethod @http, 'HttpReq', @success OUT, 'http://example.com/xyz/connect/report', @req, @resp
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @req
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END

    EXEC sp_OAGetProperty @resp, 'StatusCode', @iTmp0 OUT
    IF @iTmp0 <> 200
      BEGIN

        PRINT 'Hey, I didn''t receive the expected response status code!'

        EXEC sp_OAGetProperty @resp, 'StatusCode', @iTmp0 OUT
        PRINT 'status code = ' + @iTmp0
      END

    -- Could be error text if the status code wasn't what we expected, or could be the response
    -- body you're seeking..
    DECLARE @responseBody nvarchar(4000)
    EXEC sp_OAGetProperty @resp, 'BodyStr', @responseBody OUT

    PRINT @responseBody

    DECLARE @fac int
    EXEC @hr = sp_OACreate 'Chilkat.FileAccess', @fac OUT

    DECLARE @filepath nvarchar(4000)
    SELECT @filepath = 'some file path'
    EXEC sp_OAMethod @fac, 'WriteEntireTextFile', @success OUT, @filepath, @responseBody, 'utf-8', 0
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @fac, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
      END

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


END
GO