You are unmarshalling into a map[string]interface{}. Thus, the unmarshal
function is basically not told what the value should be and thus unmarshals
the JSON object into a map[string]interface. If you want the value to be a
Postgres struct, then config must specify a Postgres value.
See, e.g., https://play.golang.org/p/ER_6AL-PHQr.
Jeff
On Friday, January 12, 2018 at 1:30:10 PM UTC-5, Manlio Perillo wrote:
>
> Hi.
>
> Consider this example:
> https://play.golang.org/p/q7oEp40ZCIL
>
> Unmarshal replaces the existing map entry with key "Postgres".
> The documentation says:
>
> To unmarshal a JSON object into a map, Unmarshal first establishes a
> map to use.
> If the map is nil, Unmarshal allocates a new map.
> Otherwise Unmarshal reuses the existing map, keeping existing entries.
> Unmarshal then stores key-value pairs from the JSON object into the
> map.
> The map's key type must either be a string, an integer, or implement
> encoding.TextUnmarshaler.
>
> Does the reported behavior conform to the documentation?
> Personally, I would have expected the program to not panic.
>
>
> Thanks
> Manlio Perillo
>
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