Invalid 'HttpContent' instance provided. It does not have a 'multipart' content-type header with a 'boundary' parameter

Question

I\'m writing a web api that have a post method accepting files from uploaded from UI.

public async Task> PostAsync()
    {

                 


        

Answer 1

First: Postman have a bug in handling file-based requests.

You can try adding this to your WebApiConfig.cs it worked for me:

GlobalConfiguration.Configuration.Formatters.XmlFormatter.SupportedMediaTypes.Clear();