Keep getting slammed with 'multiple occurrences' warning

[kalnode]

Sorry, I made an SO post on the issue here, before I found this git:
https://stackoverflow.com/questions/46389607/go-linter-on-atom

I'm using Atom, I keep getting a long list of warnings like so, but what's the reasoning for it?
"3 other occurrence(s) of "GET" found in: routes_pages.go:384:8 routes_pages.go:443:7 routes_pages.go:536:7 (goconst)", appears for each case of GET, POST, PUT, etc. basically a huge list of warnings.

My routes:

a.Router.HandleFunc("/login", a.PageLogin)
a.Router.HandleFunc("/register", a.PageRegister)
a.Router.HandleFunc("/event/add", a.PageEventCreate)

My typical route funcs:

func (a *App) PageEventCreate(w http.ResponseWriter, r *http.Request) {

    switch r.Method {
        case "GET":
            // Serve the resource.
        case "POST":
            // Create a new record.
        case "PUT":
            // Update an existing record.
        case "DELETE":
            // Remove the record.
        default:
            // Give an error message.
    }

}



func (a *App) PageLogin(res http.ResponseWriter, req *http.Request) {
        switch r.Method {
            case "GET":
                // Serve the resource.
            case "POST":
                // Create a new record.
            case "PUT":
                // Update an existing record.
            case "DELETE":
                // Remove the record.
            default:
                // Give an error message.
        }

}

[jgautheron]

The accepted answer on SO says it all.