SQL Server

Send HTTP POST using non-UTF8 such as Windows-1250

See more HTTP Examples

Demonstrates how to specify the character encoding (charset) to be used for the body of an HTTP POST. SQL Server

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

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

    --  Load a JSON file containing strings with Polish chars.
    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT

    EXEC sp_OAMethod @json, 'LoadFile', @success OUT, 'qa_data/json/has_polish_chars.json'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @json, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @req
        EXEC @hr = sp_OADestroy @json
        RETURN
      END

    --  Add the request params expected by the server-side:
    EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'tytul'
    EXEC sp_OAMethod @req, 'AddParam', NULL, 'tytul', @sTmp0
    EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'tresc'
    EXEC sp_OAMethod @req, 'AddParam', NULL, 'tresc', @sTmp0

    --  Indicate we wish to explicitly send the charset attribute in the HTTP request header.
    EXEC sp_OASetProperty @req, 'SendCharset', 1

    --  Send the POST
    --  You can send the POST to the URL below.  It will respond with the request body in quoted-printable format.
    --  Using quoted-printable, we can easily see the binary bytes for the accented chars.

    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, 'https://www.chilkatsoft.com/echoPost.cshtml', @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 @json
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END

    EXEC sp_OAGetProperty @http, 'LastHeader', @sTmp0 OUT
    PRINT @sTmp0
    EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
    PRINT @sTmp0

    --  Sample output:

    --  --------------------------------------------------
    --  POST /echoPost.cshtml HTTP/1.1
    --  Host: www.chilkatsoft.com
    --  Content-Type: application/x-www-form-urlencoded; charset=utf-8
    --  Content-Length: 79
    --  
    --  <pre>tytul=3DPrzyk%C5%82ad&amp;tresc=3DPrzyk%C5%82ad
    --  %82oszenie</pre>
    --  --------------------------------------------------

    --  We can see by the %C5%82 that utf-8 was sent, because %C5%82 is the 2-byte representation of a particular Polish char.

    --  -----------------------
    --  However.. we can change the charset used for the HTTP request by specifying the request object's charset.

    EXEC sp_OASetProperty @req, 'SendCharset', 1
    EXEC sp_OASetProperty @req, 'Charset', 'windows-1250'
    EXEC sp_OASetProperty @req, 'HttpVerb', 'POST'
    EXEC sp_OASetProperty @req, 'ContentType', 'application/x-www-form-urlencoded'

    EXEC sp_OAMethod @http, 'HttpReq', @success OUT, 'https://www.chilkatsoft.com/echoPost.cshtml', @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 @json
        EXEC @hr = sp_OADestroy @resp
        RETURN
      END

    EXEC sp_OAGetProperty @http, 'LastHeader', @sTmp0 OUT
    PRINT @sTmp0
    EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
    PRINT @sTmp0

    --  Sample output...
    --  You can see how the bytes used for the Polish chars are now 1-byte per char (i.e. using Windows-1250) 

    --  --------------------------------------------------
    --  POST /echoPost.cshtml HTTP/1.1
    --  Host: www.chilkatsoft.com
    --  Content-Type: application/x-www-form-urlencoded; charset=windows-1250
    --  Content-Length: 70
    --  
    --  <pre>tytul=3DPrzyk%B3ad&amp;tresc=3DPrzyk%B3ad
    --  e</pre>
    --  --------------------------------------------------

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


END
GO