Send documents

You might want to attach documents to transport orders, invoices or add a security protocol document to a site. In order to send documents within a request, you need to specify the header "Content-Type: multipart/form-data" in your request.

When header "Content-Type: multipart/form-data", there is also a boundary attribute that is given in the Content-Type. See this exemple :

"Content-Type": "multipart/form-data;boundary=Boundary_42_15460972_1713531308867"

The value for boundary changes according the content of the request. The boundary attribute and its value is usually added by the code library you use to send requests. In the screenshot below, we can see that when using Postman to prepare a request with "form-data" kind of body, Postman automatically prepares the "Content-Type" header and the boundary will be generated when the request is sent.

If you are receiving this kind of error:

{"detail":"Multipart form parse error - Invalid boundary in multipart: None"}

you should search documentation of your coding language, library, or framework to find how this "boundary" attribute can be added to your request.