statefalsemessagejson cannot unmarshal array into Go value of type modelIndexDoc

This error occurs when trying to unmarshal an array into a Go value of type model.IndexDoc. It means that the JSON data you are trying to unmarshal is an array, but you are trying to unmarshal it into a single value of type model.IndexDoc.

To fix this error, you need to make sure that your JSON data matches the expected Go type. If the JSON data is an array, you should unmarshal it into a slice or an array instead of a single value.

For example, if your JSON data looks like this:

[
  {"id": 1, "name": "John"},
  {"id": 2, "name": "Jane"}
]

You should unmarshal it into a slice of model.IndexDoc like this:

var docs []model.IndexDoc
err := json.Unmarshal(jsonData, &docs)
if err != nil {
    // handle error
}

If you are expecting a single object instead of an array, you need to modify your JSON data accordingly or change the Go type to match the array structure