(SQL Server) REST File Upload (multipart/form-data)

Demonstrates how to upload a file using multipart/form-data.

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 requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

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

    -- Connect to the HTTP server using TLS.
    DECLARE @bTls int
    SELECT @bTls = 1
    DECLARE @port int
    SELECT @port = 443
    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    -- Make sure to replace "www.chilkatsoft.com" with your domain..
    DECLARE @success int
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'www.chilkatsoft.com', @port, @bTls, @bAutoReconnect
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    DECLARE @fileStream int
    -- Use "Chilkat_9_5_0.Stream" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Stream', @fileStream OUT

    EXEC sp_OASetProperty @fileStream, 'SourceFile', 'qa_data/jpg/starfish.jpg'

    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Content-Type', 'multipart/form-data'

    EXEC sp_OASetProperty @rest, 'PartSelector', '1'
    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Content-Type', 'image/jpg'
    EXEC sp_OAMethod @rest, 'AddHeader', @success OUT, 'Content-Disposition', 'form-data; name="filename"; filename="starfish.jpg"'
    EXEC sp_OAMethod @rest, 'SetMultipartBodyStream', @success OUT, @fileStream
    EXEC sp_OASetProperty @rest, 'PartSelector', '0'

    DECLARE @responseBody nvarchar(4000)
    EXEC sp_OAMethod @rest, 'FullRequestMultipart', @responseBody OUT, 'POST', '/the_uri_path_to_receive_the_upload'
    EXEC sp_OAGetProperty @rest, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @fileStream
        RETURN
      END

    EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
    IF @iTmp0 <> 200
      BEGIN

        EXEC sp_OAGetProperty @rest, 'ResponseStatusCode', @iTmp0 OUT
        PRINT 'Received error response code: ' + @iTmp0
        EXEC @hr = sp_OADestroy @rest
        EXEC @hr = sp_OADestroy @fileStream
        RETURN
      END


    PRINT 'File uploaded'

    EXEC @hr = sp_OADestroy @rest
    EXEC @hr = sp_OADestroy @fileStream


END
GO