Cant GetTyped if one of tarantool response keys is non-string typed

[KaymeKaydex]

msgpack: invalid code=1 decoding string/bytes length

https://github.com/vmihailenco/msgpack/blob/19c91dfdfa062658c39d9321be26163fc5833bd1/decode_string.go#L31

[KaymeKaydex]

but data non-empty

[oleg-jukovec]

Please give an example of the code in which you decode the response with GetTyped() and the response decoded as {}interface with Get().

Ideally I would like to see a minimal reproducer.

Now it’s not entirely clear to me what’s not working for you.

[oleg-jukovec]

I got it. You need to write a custom decoder for this cases, as example:

type testReproducer368 struct {
	Value int
	Foo   string
}

func (t *testReproducer368) DecodeMsgpack(d *msgpack.Decoder) error {
	var (
		err error
		l   int
	)
	if l, err = d.DecodeMapLen(); err != nil {
		return err
	}
	for i := 0; i < l; i++ {
		key, err := d.DecodeInterface()
		if err != nil {
			return err
		}
		value, err := d.DecodeInterface()
		if err != nil {
			return err
		}
		switch key {
		case int8(34):
			t.Value = int(value.(int8))
		case "foo":
			t.Foo = value.(string)
		}
	}
	return nil
}

func TestReproducer368(t *testing.T) {
	conn := test_helpers.ConnectWithValidation(t, dialer, opts)
	defer conn.Close()

	test := []testReproducer368{}
	err := conn.Do(NewEvalRequest("return {[34] = 2, foo = 'bar'}")).GetTyped(&test)
	require.NoError(t, err)
	require.Equal(t, []testReproducer368{testReproducer368{2, "bar"}}, test)
}

You could see examples of the custom decoders in the connector code or in the msgpack library. See:
vmihailenco/msgpack#314

[oleg-jukovec]

The reason in the msgpack library implementation, we can't fix it on our side.