47 lines
1.4 KiB
Elixir
47 lines
1.4 KiB
Elixir
defmodule NeonVertigoService.Mqtt.Server do
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use GenServer
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def start_link(_) do
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GenServer.start_link(__MODULE__, [], name: __MODULE__)
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end
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def init(_) do
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{:ok, {}, {:continue, :post_init}}
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end
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# Callbacks
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def handle_continue(:post_init, {}) do
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:ok = NeonVertigoService.MessageProcessor.init_tables()
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mqtt_config = Application.fetch_env!(:neon_vertigo_service, :mqtt_params)
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{:ok, mqtt_pid} = Supervisor.start_child(
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NeonVertigoService.Mqtt.Supervisor,
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%{
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id: :neon_vertigo_emqtt,
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start: {:emqtt, :start_link, [[owner: self(), name: :neon_vertigo_service_emqtt, proto_ver: :v5] ++ mqtt_config]}
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}
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)
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{:ok, _mqtt_props} = :emqtt.connect(mqtt_pid)
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:emqtt.subscribe(mqtt_pid, %{}, [{"$share/neon-vertigo-service/auctions/+", [{:qos, 1}]}])
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{:noreply, {mqtt_pid}}
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end
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# Handling MQTT messages
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def handle_info({:publish, msg}, {mqtt_pid} = state) do
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IO.puts("Received message")
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IO.inspect(msg)
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%{payload: payload_str, topic: topic_str, properties: properties} = msg
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topic = String.split(topic_str, "/")
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payload = JSON.decode!(payload_str)
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case NeonVertigoService.MessageProcessor.process_message(topic, payload, properties) do
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{:reply, topic, data} -> :emqtt.publish(mqtt_pid, topic, data)
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:noreply -> nil
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end
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{:noreply, state}
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end
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end
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