Max upload size for ASP.NET Core MVC website

Question

How can I set maximum upload size for an ASP.NET Core MVC 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
– Fabricio Koch, Commented Oct 26, 2016 at 15:44
What kind of upload is it? There's only a built in limit for Forms and multipart. github.com/aspnet/Performance/blob/… — Tratcher
– Tratcher, Commented Oct 26, 2016 at 17:03

Vishwa Ratna · Accepted Answer · 2016-10-27 03:42:30Z

5

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

answered Oct 27, 2016 at 3:42

Vishwa Ratna

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Will Ray · Accepted Answer · 2016-10-27 03:31:15Z

2

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.

answered Oct 27, 2016 at 3:31

Will Ray

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