Read and write switch Entity via MQTT example

Configuration
1

Can someone provide a complete example on how i can map an MQTT topic to an actual switch entity in HA both write and read?

So lets say i have an entity:

switch.foo_bar

Do i need to do something like this:

mqtt:
  - switch:
      unique_id: bedroom_switch
      name: "Bedroom Switch"
      state_topic: "home/bedroom/switch1"
      command_topic: "home/bedroom/switch1/set"

Then subscribe to the topic and map events to actions that change foo_bar then do the other way round and post when something changes or there is an easier way?