Mainflux.mainflux/lora

LoRa Adapter

Adapter between Mainflux IoT system and LoRa Server.

This adapter sits between Mainflux and LoRa Server and just forwards the messages from one system to another via MQTT protocol, using the adequate MQTT topics and in the good message format (JSON and SenML), i.e. respecting the APIs of both systems.

LoRa Server is used for connectivity layer and data is pushed via this adapter service to Mainflux, where it is persisted and routed to other protocols via Mainflux multi-protocol message broker. Mainflux adds user accounts, application management and security in order to obtain the overall end-to-end LoRa solution.

Configuration

The service is configured using the environment variables presented in the following table. Note that any unset variables will be replaced with their default values.

Variable	Description	Default
MF_LORA_ADAPTER_HTTP_PORT	Service HTTP port	9017
MF_LORA_ADAPTER_LOG_LEVEL	Service Log level	info
MF_MESSAGE_BROKER_URL	Message broker instance URL	nats://localhost:4222
MF_LORA_ADAPTER_MESSAGES_URL	LoRa adapter MQTT broker URL	tcp://localhost:1883
MF_LORA_ADAPTER_MESSAGES_TOPIC	LoRa adapter MQTT subscriber Topic	application/+/device/+/event/up
MF_LORA_ADAPTER_MESSAGES_USER	LoRa adapter MQTT subscriber Username
MF_LORA_ADAPTER_MESSAGES_PASS	LoRa adapter MQTT subscriber Password
MF_LORA_ADAPTER_MESSAGES_TIMEOUT	LoRa adapter MQTT subscriber Timeout	30s
MF_LORA_ADAPTER_ROUTE_MAP_URL	Route-map database URL	redis://localhost:6379
MF_THINGS_ES_URL	Things service event source URL	localhost:6379
MF_THINGS_ES_PASS	Things service event source password
MF_THINGS_ES_DB	Things service event source DB	0
MF_LORA_ADAPTER_EVENT_CONSUMER	Service event consumer name	lora
MF_JAEGER_URL	Jaeger server URL	http://jaeger:14268/api/traces
MF_SEND_TELEMETRY	Send telemetry to mainflux call home server	true

Deployment

The service itself is distributed as Docker container. Check the lora-adapter service section in docker-compose to see how service is deployed.

To start the service outside of the container, execute the following shell script:

# download the latest version of the service
git clone https://github.com/mainflux/mainflux

cd mainflux

# compile the lora adapter
make lora

# copy binary to bin
make install

# set the environment variables and run the service
MF_LORA_ADAPTER_LOG_LEVEL=[Lora Adapter Log Level] \
MF_MESSAGE_BROKER_URL=[Message broker instance URL] \
MF_LORA_ADAPTER_MESSAGES_URL=[LoRa adapter MQTT broker URL] \
MF_LORA_ADAPTER_MESSAGES_TOPIC=[LoRa adapter MQTT subscriber Topic] \
MF_LORA_ADAPTER_MESSAGES_USER=[LoRa adapter MQTT subscriber Username] \
MF_LORA_ADAPTER_MESSAGES_PASS=[LoRa adapter MQTT subscriber Password] \
MF_LORA_ADAPTER_MESSAGES_TIMEOUT=[LoRa adapter MQTT subscriber Timeout]
MF_LORA_ADAPTER_ROUTE_MAP_URL=[Lora adapter routemap URL] \
MF_THINGS_ES_URL=[Things service event source URL] \
MF_THINGS_ES_PASS=[Things service event source password] \
MF_THINGS_ES_DB=[Things service event source password] \
MF_OPCUA_ADAPTER_EVENT_CONSUMER=[LoRa adapter instance name] \
$GOBIN/mainflux-lora

Using docker-compose

This service can be deployed using docker containers. Docker compose file is available in <project_root>/docker/addons/lora-adapter/docker-compose.yml. In order to run Mainflux lora-adapter, execute the following command:

docker-compose -f docker/addons/lora-adapter/docker-compose.yml up -d

Usage

For more information about service capabilities and its usage, please check out the Mainflux documentation.