// web server

type Foo struct {
    Number int    `json:"number"`
    Title  string `json:"title"`
}

foo_marshalled, err := json.Marshal(Foo{Number: 1, Title: "test"})
fmt.Fprint(w, string(foo_marshalled)) // write response to ResponseWriter (w)


first character being uppercase makes it visible to json, then with `json:number` bit tells
json it's proper name



* attached to a type (*string) indicates a pointer to the type.

* attached to a variable in an assignment (*v = ...) indicates an indirect assignment.
That is, change the value pointed at by the variable.

* attached to a variable or expression (*v) indicates a pointer dereference.
That is, take the value the variable is pointing at.

& attached to a variable or expression (&v) indicates a reference.
That is, create a pointer to the value of the variable or to the field.