Echo: What is the best way to handle dynamic subdomains?

[dre1080]

An example is if you wanted users to have their own subdomains like GitHub Pages: {username}.github.io

[axdg]

If the use case that you're thinking of is actually like the example (github pages), then the username would be a parameter that you might want to have accessible in your handlers, so that you can do a db lookup using the username, together with the path parameters, then figure out the response.

Given the design of echo (and every other major framework in go - httpRouter, gin, goji etc.) you can't set context values prior to routing, as the ctx is created (or grabbed from a sync.pool) inside echo.ServeHTTP().

I think that the best workaround ATM is to modify the request when you are multiplexing on subdomain, for instance, by adding the username as a url query value. Then you can grab the query value inside your echo handler.

[hexadecy]

You can use nginx proxy pass:

server {
    listen  80;
    server_name ~^(?<username>.+)\.github\.io$;

    location / {
        proxy_pass http://github.io:3000/user/$username$request_uri;
    }
}

[mathvav]

@axdg don't know if this is new or not, but you can get the host using c.Request().Host. I use this to redirect to www..

Split using strings.Split

[stale[bot]]

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