Post request with MultiPart

[gresaggr]

Hello.
How can I send request with multipart/form-data with image file?
For example:

Content-Disposition: form-data; name="model"
news_image

Content-Disposition: form-data; name="img"; filename="1.jpg"
Content-Type: image/jpeg


P.S. Or probably is it possible like in Selenium - SendKeys to element with full file name?

[salvadordf]

Hi,

You should be able to do both things.

You can create a custom POST request using the code in the URLRequest demo. You would have to encode the image file and call TCefPostDataElementRef.SetToBytes. You may also have to add a "content-type" header to the request.

Alternatively, you can also emulate keyboard and mouse events to make the browser send the file for you. You can use a browser in OSR mode to log all the mouse and keyboard events, and replicate them later. Use the SimpleOSRBrowser demo for that.

[gresaggr]

Ok. Thank you.

[igor666]

Hi. Faced the same problem, unable to send multipart/form-data request. I don’t understand how to make the request body as follows:

Code: Select all

Header
...
Content-Type: multipart/form-data; boundary=---------------573cf973d5228--
...

Body
---------------573cf973d5228
Content-Disposition: form-data; name="upload"

Загрузить
---------------573cf973d5228
Content-Disposition: form-data; name="myfile"; filename="my_file_name.jpg"
Content-Type: image/jpeg

Content file
---------------573cf973d5228--

How to insert the title is clear, but how the request forms the body, I cannot understand. I tried to do it as described in the URLRequest demo, but the server does not accept such a request. And in this demo, it is not clear how the same boundary is formed and where it is inserted. I need to send a file to the server in the body of a multipart/form-data request, but unfortunately nothing works. Could you explain in more detail how this can be done. Thank you in advance.

[salvadordf]

I've never done that but I can give you the links to the information that might help you.

The URLRequest demo uses these CEF classes to send the POST request :

• TCefRequestRef : https://magpcss.org/ceforum/apidocs3/projects/(default)/CefRequest.html
• TCefPostDataRef : https://magpcss.org/ceforum/apidocs3/projects/(default)/CefPostData.html
• TCefPostDataElementRef : https://magpcss.org/ceforum/apidocs3/projects/(default)/CefPostDataElement.html

The official forum has some threads that might be useful too :
https://www.magpcss.org/ceforum/viewtopic.php?f=6&t=396

[igor666]

OK, thanks for the info.