get event proxy working on local including mqtt message sending
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6 changed files with 218 additions and 3 deletions
17
event_proxy/docker-compose.yml
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17
event_proxy/docker-compose.yml
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@ -0,0 +1,17 @@
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services:
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mqtt:
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image: eclipse-mosquitto:latest
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container_name: mqtt-dev
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ports:
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- "5883:1883"
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- "9001:9001"
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volumes:
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- ./mosquitto.conf:/mosquitto/config/mosquitto.conf
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- mosquitto_data:/mosquitto/data
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- mosquitto_logs:/mosquitto/log
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environment:
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- TZ=UTC
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volumes:
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mosquitto_data:
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mosquitto_logs:
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@ -1,3 +1,10 @@
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module event_proxy
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go 1.25.0
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require (
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github.com/eclipse/paho.mqtt.golang v1.5.1 // indirect
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github.com/gorilla/websocket v1.5.3 // indirect
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golang.org/x/net v0.44.0 // indirect
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golang.org/x/sync v0.17.0 // indirect
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)
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8
event_proxy/go.sum
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8
event_proxy/go.sum
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@ -0,0 +1,8 @@
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github.com/eclipse/paho.mqtt.golang v1.5.1 h1:/VSOv3oDLlpqR2Epjn1Q7b2bSTplJIeV2ISgCl2W7nE=
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github.com/eclipse/paho.mqtt.golang v1.5.1/go.mod h1:1/yJCneuyOoCOzKSsOTUc0AJfpsItBGWvYpBLimhArU=
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github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
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github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
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golang.org/x/net v0.44.0 h1:evd8IRDyfNBMBTTY5XRF1vaZlD+EmWx6x8PkhR04H/I=
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golang.org/x/net v0.44.0/go.mod h1:ECOoLqd5U3Lhyeyo/QDCEVQ4sNgYsqvCZ722XogGieY=
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golang.org/x/sync v0.17.0 h1:l60nONMj9l5drqw6jlhIELNv9I0A4OFgRsG9k2oT9Ug=
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golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
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63
event_proxy/home_assistant_configs/node1_config.json
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63
event_proxy/home_assistant_configs/node1_config.json
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@ -0,0 +1,63 @@
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{
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"dev": {
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"ids": "bws_node1_001",
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"name": "Node1",
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"mf": "diy",
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"sw": "1.0",
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"hw": "1.0"
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},
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"cmps": {
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"node1_temp": {
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"p": "sensor",
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"device_class": "temperature",
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"unit_of_measurement": "°C",
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"value_template": "{{ value_json.temp}}",
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"state_topic": "homeassistant/sensor/bws/node1/state1",
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"unique_id": "bws_node1_temp_001"
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},
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"node1_humidity": {
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"p": "sensor",
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"device_class": "humidity",
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"unit_of_measurement": "%",
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"value_template": "{{ value_json.humidity}}",
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"state_topic": "homeassistant/sensor/bws/node1/state1",
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"unique_id": "bws_node1_humidity_001"
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},
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"node1_pressure": {
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"p": "sensor",
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"device_class": "atmospheric_pressure",
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"unit_of_measurement": "hPa",
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"value_template": "{{ value_json.pressure}}",
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"state_topic": "homeassistant/sensor/bws/node1/state1",
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"unique_id": "bws_node1_pressure_001"
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},
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"node1_pm1": {
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"p": "sensor",
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"device_class": "pm1",
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"unit_of_measurement": "µg/m³",
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"value_template": "{{ value_json.pm1}}",
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"state_topic": "homeassistant/sensor/bws/node1/state2",
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"unique_id": "bws_node1_pm1_001"
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},
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"node1_pm25": {
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"p": "sensor",
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"device_class": "pm25",
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"unit_of_measurement": "µg/m³",
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"value_template": "{{ value_json.pm2_5}}",
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"state_topic": "homeassistant/sensor/bws/node1/state2",
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"unique_id": "bws_node1_pm25_001"
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},
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"node1_pm10": {
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"p": "sensor",
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"device_class": "pm10",
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"unit_of_measurement": "µg/m³",
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"value_template": "{{ value_json.pm10}}",
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"state_topic": "homeassistant/sensor/bws/node1/state2",
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"unique_id": "bws_node1_pm10_001"
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}
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},
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"o": {
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"name": "diy_pico_w"
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},
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"qos": 1
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}
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@ -1,6 +1,7 @@
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package main
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import (
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"encoding/json"
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"fmt"
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"io"
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"log/slog"
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@ -8,8 +9,33 @@ import (
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"os"
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"strconv"
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"strings"
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mqtt "github.com/eclipse/paho.mqtt.golang"
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)
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type App struct {
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client mqtt.Client
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}
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func getMQTTClient() mqtt.Client {
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// TODO: get port and host from env vars
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opts := mqtt.NewClientOptions().
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AddBroker("tcp://localhost:5883").
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SetClientID("event-proxy")
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client := mqtt.NewClient(opts)
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if token := client.Connect(); token.Wait() && token.Error() != nil {
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panic(token.Error())
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}
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return client
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// // Publish a message
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// token := client.Publish("homeassistant/sensor/bws/node1/state1", 0, false, `{"temp": 23.5, "humidity": 45, "pressure": 1013}`)
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// token.Wait()
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// client.Disconnect(250)
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}
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type Message struct {
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ID int
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Data []string
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@ -37,7 +63,86 @@ func ParseMsg(msg string) (*Message, error) {
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return message, nil
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}
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func main() {
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type Message1DTO struct {
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Temperature float32 `json:"temperature"`
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Humidity float32 `json:"humidity"`
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Pressure float32 `json:"pressure"`
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}
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type Message2DTO struct {
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PM1 float32 `json:"pm1"`
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PM25 float32 `json:"pm25"`
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PM10 float32 `json:"pm10"`
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}
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func (app *App) handleMsg(message *Message) {
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switch message.ID {
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case 1:
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temp, err := strconv.ParseFloat(message.Data[0], 32)
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if err != nil {
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slog.Error("Error parsing temperature", "error", err)
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return
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}
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humidity, err := strconv.ParseFloat(message.Data[1], 32)
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if err != nil {
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slog.Error("Error parsing humidity", "error", err)
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return
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}
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pressure, err := strconv.ParseFloat(message.Data[2], 32)
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if err != nil {
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slog.Error("Error parsing pressure", "error", err)
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return
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}
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dto := Message1DTO{
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Temperature: float32(temp),
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Humidity: float32(humidity),
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Pressure: float32(pressure),
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}
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dtoString, err := json.Marshal(dto)
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if err != nil {
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slog.Error("Error marshaling Message1DTO", "error", err)
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return
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}
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topic := "homeassistant/sensor/bws/node1/state1"
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token := app.client.Publish(topic, 0, false, dtoString)
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token.Wait()
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slog.Info("Sent Message", "dto", dto, "topic", topic)
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case 2:
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pm1, err := strconv.ParseFloat(message.Data[0], 32)
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if err != nil {
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slog.Error("Error parsing pm1", "error", err)
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return
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}
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pm25, err := strconv.ParseFloat(message.Data[1], 32)
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if err != nil {
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slog.Error("Error parsing pm25", "error", err)
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return
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}
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pm10, err := strconv.ParseFloat(message.Data[2], 32)
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if err != nil {
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slog.Error("Error parsing pm10", "error", err)
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return
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}
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dto := Message2DTO{
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PM1: float32(pm1),
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PM25: float32(pm25),
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PM10: float32(pm10),
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}
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dtoString, err := json.Marshal(dto)
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if err != nil {
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slog.Error("Error marshaling Message2DTO", "error", err)
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return
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}
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topic := "homeassistant/sensor/bws/node1/state2"
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token := app.client.Publish(topic, 0, false, dtoString)
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token.Wait()
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slog.Info("Sent Message", "dto", dto, "topic", topic)
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default:
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slog.Warn("Unknown message ID", "id", message.ID)
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}
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}
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func (app *App) runServer() {
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// Initialize JSON logger
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logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
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slog.SetDefault(logger)
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@ -67,11 +172,11 @@ func main() {
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slog.Error("Error accepting connection", "error", err)
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continue
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}
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go handleConnection(conn)
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go app.handleConnection(conn)
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}
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}
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func handleConnection(conn *net.TCPConn) {
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func (app *App) handleConnection(conn *net.TCPConn) {
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defer conn.Close()
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slog.Info("New connection", "remote_addr", conn.RemoteAddr().String())
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@ -98,6 +203,7 @@ func handleConnection(conn *net.TCPConn) {
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return
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}
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slog.Info("Parsed message", "message", msg)
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app.handleMsg(msg)
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//Echo message back
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// _, err = conn.Write(buffer[:n])
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@ -108,3 +214,10 @@ func handleConnection(conn *net.TCPConn) {
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}
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}
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}
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func main() {
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client := getMQTTClient()
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app := App{client: client}
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app.runServer()
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client.Disconnect(250)
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}
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7
event_proxy/mosquitto.conf
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7
event_proxy/mosquitto.conf
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listener 1883
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protocol mqtt
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listener 9001
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protocol websockets
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allow_anonymous true
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