function for converting a struct to map in Golang

Question

I want to convert a struct to map in Golang. It would also be nice if I could use the JSON tags as keys in the created map (otherwise defaulting to field name).

Edi

Answer 1

I also had need for something like this. I was using an internal package which was converting a struct to a map. I decided to open source it with other struct based high level functions. Have a look:

https://github.com/fatih/structs

It has support for:

• Convert struct to a map
• Extract the fields of a struct to a []string
• Extract the values of a struct to a []values
• Check if a struct is initialized or not
• Check if a passed interface is a struct or a pointer to struct

You can see some examples here: http://godoc.org/github.com/fatih/structs#pkg-examples For example converting a struct to a map is a simple:

type Server struct {
    Name    string
    ID      int32
    Enabled bool
}

s := &Server{
    Name:    "gopher",
    ID:      123456,
    Enabled: true,
}

// => {"Name":"gopher", "ID":123456, "Enabled":true}
m := structs.Map(s)

The structs package has support for anonymous (embedded) fields and nested structs. The package provides to filter certain fields via field tags.