GO Generic type of array in function parameter

Question

I have this function:

func functionX(collection []*interface{}) {
    ...
    response, err := json.MarshalIndent(collection, "", "  ")
    ...
}

I want the collection parameter to allow arrays of any kind, that's why I tried with *interface{} but I'm receiving errors like this:

cannot use MyDataType (type []*model.MyDataType) as type []*interface {} in argument to middleware.functionX

possible duplicate of Cannot convert []string to []interface {} — Ainar-G
– Ainar-G, Commented Aug 20, 2015 at 20:59

OneOfOne · Accepted Answer · 2015-08-20 20:24:06Z

5

You can't do it that way, however you can easily do this:

func functionX(collection interface{}) error {
    ...
    response, err := json.MarshalIndent(collection, "", "  ")
    ...
}

answered Aug 20, 2015 at 20:24

OneOfOne

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1 Comment

Thanks, I already figured it out, but is exactly as you say :) It's working like a charm