[MQTT] Topic returning topic filter, not message topic

[fiLLLip]

When trying out the sample, and listening to MQTT on a wildcard topic, the topic set in the on_publish is set to the filter, not the actual topic that the message appeared on. How to deal with this, and get the actual topic?

E.g. '$aws/things/+/shadow/update/accepted' should give topic '$aws/things/my_test_device/shadow/update/accepted'

aws-crt-nodejs/samples/browser/pub_sub/index.ts

Line 81 in 8c49119

connection.subscribe('/test/me/senpai', mqtt.QoS.AtLeastOnce, (topic, payload) => {

I posted the same issue in aws/aws-iot-device-sdk-js-v2#40 but I think this is the right place for it

[fiLLLip]

Changed my code to subscribe without callback, and then add a .on('message') event handler instead. This gives me the topic :)

            await connection.subscribe('$aws/things/+/shadow/update/accepted', mqtt.QoS.AtLeastOnce);
            await connection.on('message', async (topic, payload) => {
                if (payload === undefined) {
                    reject("Undefined payload");
                }
                const payload_str = decoder.decode(payload);
                const message = JSON.parse(payload_str);
                const id = topic.split('/')[2];
                await pubsub.publish(id.split('_')[0], {event: {id: id, data: message.state.reported}});
                resolve(true);
            });