How to set the base path or the ApplicationPath for ASP.NET MVC application

Question

I have an ASP.NET MVC web application which I want to put behind NGINX reverse proxy. Currently the web application is served from the domain's root, i.e., http://www.example.com/, and it works fine.

Now, I am looking to move the application behind NGINX such that the application can be served from something like: http://www.example.com/myapp/

I am not able to figure our how to set the base path or the application path of the application to /myapp so that the NGINX rule for it would work. The rule I have in NGINX is something like:

location /myapp/ {
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_pass http://localhost:7654;
    }

I have tried setting app.UsePathBase("/myapp"); in Configure method of my Startup.cs, but it did not help. The prefix /myapp is not getting added to the links that are served out of my web application. Is it incorrect for me to expect a URL such as <a href="/foo">Foo</a> to be automatically treated as href="/myapp/foo" when sent to the client?

Any suggestions will be greatly appreciated. Thank you!

Answer 1

Two things you have to do : in the conf file :

location /zola/{
   proxy_pass http://localhost:5000/zola/;
}

in the Startup.cs

public void Configure(IaaplicationBuilder app, IWebHostEnvironment env)
    {
        app.UsePathBase("/zola");     
        ...
        ...
    }

Publish and run the exe of the web app and restart nginx. In fact you can set multiple base paths like show below

public void Configure(IaaplicationBuilder app, IWebHostEnvironment env)
    {
        app.UsePathBase("/zola"); 
        app.UsePathBase("/kola");     
        ...
        ...
    }