How to Initialize a nested struct in Go?

Question

I cannot figure out how to initialize a nested struct. Find an example here: 
package main

type Configuration struct {
    Val   string
    Proxy struct {
        Address string
        Port    string
    }
}

func main() {

    c := &Configuration{
        Val: "test",
        Proxy: {
            Address: "addr",
            Port:    "80",
        },
    }

}

Output:
# command-line-arguments
./main.go:15:16: missing type in composite literal
exit status 2

Gopher · Accepted Answer

Well, any specific reason to not make Proxy its own struct? Anyway you have 2 options: The proper way, simply move proxy to its own struct, for example: package main import "fmt" type Configuration struct { Val string Proxy Proxy } type Proxy struct { Address string Port string } func main() { c := &Configuration{ Val: "test", Proxy: Proxy{ Address: "addr", Port: "port", }, } fmt.Println(c) fmt.Println(c.Proxy.Address) } https://play.golang.org/p/kC38JPg1po0 The less proper and ugly way but still works: c := &Configuration{ Val: "test", Proxy: struct { Address string Port string }{ Address: "addr", Port: "80", }, }

Go Language

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