Max upload size for ASP.MVC CORE website

Question

How can I set maximum upload size for an ASP.NET CORE application?

In the past I was able to set it in web.config file like this:

<system.webServer>
    <security>
        <requestFiltering>
            <requestLimits maxAllowedContentLength="52428800" />
        </requestFiltering>
    </security>
</system.webServer>

Are you hosting on IIS? If yes, did you try to put this into your web.config to see if it works? — Fabricio Koch, Oct 26 '16 at 15:44
What kind of upload is it? There's only a built in limit for Forms and multipart. https://github.com/aspnet/Performance/blob/2a1621d2c5dc1ab1d2ed280866f09cc7e5a81589/testapp/MultipartPOST/MultipartPOST/Startup.cs#L22 — Tratcher, Oct 26 '16 at 17:03

score 5 · Answer 1 · answered Oct 27 '16 at 03:42

Two ways to do that:

1.Using application wise settings - in the > configure services method.

services.Configure<FormOptions>(options =>
{
    options.MultipartBodyLengthLimit = 52428800;
});

2.Using RequestFormSizeLimit attribute - for specific actions. - It is not yet available in official package Unofficial

score 2 · Answer 2 · answered Oct 27 '16 at 03:31

You can configure the max limit for multipart uploads in the ConfigureServices method:

public void ConfigureServices(IServiceCollection services)
{
    services.Configure<FormOptions>(options =>
    {
        options.MultipartBodyLengthLimit = 52428800;

    });

    services.AddMvc();
}

You can also configure the MaxRequestBufferSize by using services.Configure<KestrelServerOptions>, but it looks like this is going to be deprecated in the next release.

Max upload size for ASP.MVC CORE website

2 Answers2

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