Large IFormFile file returns 400 Bad Request

To increase the default maximum from 128mb to 500mb:

• To apply across all endpoints (in Startup.cs)

services.Configure<FormOptions>(options =>
{
    options.MultipartBodyLengthLimit = 524288000;
});

• To only apply to a specific endpoint (in a controller)

[RequestFormLimits(MultipartBodyLengthLimit = 524288000)]