Core Configuration

INX-MQTT uses a JSON standard format as a config file. If you are unsure about JSON syntax, you can find more information in the official JSON specs.

You can change the path of the config file by using the -c or --config argument while executing inx-mqtt executable.

For example:

inx-mqtt -c config_defaults.json

You can always get the most up-to-date description of the config parameters by running:

inx-mqtt -h --full

1. Application

Name	Description	Type	Default value
checkForUpdates	Whether to check for updates of the application or not	boolean	true
shutdown	Configuration for shutdown	object

Shutdown

Name	Description	Type	Default value
stopGracePeriod	The maximum time to wait for background processes to finish during shutdown before terminating the app	string	"5m"
log	Configuration for log	object

Log

Name	Description	Type	Default value
enabled	Whether to store self-shutdown events to a log file	boolean	true
filePath	The file path to the self-shutdown log	string	"shutdown.log"

Example:

{
  "app": {
    "checkForUpdates": true,
    "shutdown": {
      "stopGracePeriod": "5m",
      "log": {
        "enabled": true,
        "filePath": "shutdown.log"
      }
    }
  }
}

2. Logger

Name	Description	Type	Default value
level	The minimum enabled logging level	string	"info"
disableCaller	Stops annotating logs with the calling function's file name and line number	boolean	true
disableStacktrace	Disables automatic stacktrace capturing	boolean	false
stacktraceLevel	The level stacktraces are captured and above	string	"panic"
encoding	The logger's encoding (options: "json", "console")	string	"console"
outputPaths	A list of URLs, file paths or stdout/stderr to write logging output to	array	stdout
disableEvents	Prevents log messages from being raced as events	boolean	true

Example:

{
  "logger": {
    "level": "info",
    "disableCaller": true,
    "disableStacktrace": false,
    "stacktraceLevel": "panic",
    "encoding": "console",
    "outputPaths": ["stdout"],
    "disableEvents": true
  }
}

3. INX

Name	Description	Type	Default value
address	The INX address to which to connect to	string	"localhost:9029"
maxConnectionAttempts	The amount of times the connection to INX will be attempted before it fails (1 attempt per second)	uint	30
targetNetworkName	The network name on which the node should operate on (optional)	string	""

Example:

{
  "inx": {
    "address": "localhost:9029",
    "maxConnectionAttempts": 30,
    "targetNetworkName": ""
  }
}

4. MQTT

Name	Description	Type	Default value
bufferSize	The size of the client buffers in bytes	int	0
bufferBlockSize	The size per client buffer R/W block in bytes	int	0
subscriptions	Configuration for subscriptions	object
websocket	Configuration for websocket	object
tcp	Configuration for TCP	object

Subscriptions

Name	Description	Type	Default value
maxTopicSubscriptionsPerClient	The maximum number of topic subscriptions per client before the client gets dropped (DOS protection)	int	1000
topicsCleanupThresholdCount	The number of deleted topics that trigger a garbage collection of the subscription manager	int	10000
topicsCleanupThresholdRatio	The ratio of subscribed topics to deleted topics that trigger a garbage collection of the subscription manager	float	1.0

Websocket

Name	Description	Type	Default value
enabled	Whether to enable the websocket connection of the MQTT broker	boolean	true
bindAddress	The websocket bind address on which the MQTT broker listens on	string	"localhost:1888"
advertiseAddress	The address of the websocket of the MQTT broker which is advertised to the INX Server (optional).	string	""

TCP

Name	Description	Type	Default value
enabled	Whether to enable the TCP connection of the MQTT broker	boolean	false
bindAddress	The TCP bind address on which the MQTT broker listens on	string	"localhost:1883"
auth	Configuration for auth	object
tls	Configuration for TLS	object

Auth

Name	Description	Type	Default value
enabled	Whether to enable auth for TCP connections	boolean	false
passwordSalt	The auth salt used for hashing the passwords of the users	string	"0000000000000000000000000000000000000000000000000000000000000000"
users	The list of allowed users with their password+salt as a scrypt hash	object	[]

TLS

Name	Description	Type	Default value
enabled	Whether to enable TLS for TCP connections	boolean	false
privateKeyPath	The path to the private key file (x509 PEM) for TCP connections with TLS	string	"private_key.pem"
certificatePath	The path to the certificate file (x509 PEM) for TCP connections with TLS	string	"certificate.pem"

Example:

{
  "mqtt": {
    "bufferSize": 0,
    "bufferBlockSize": 0,
    "subscriptions": {
      "maxTopicSubscriptionsPerClient": 1000,
      "topicsCleanupThresholdCount": 10000,
      "topicsCleanupThresholdRatio": 1
    },
    "websocket": {
      "enabled": true,
      "bindAddress": "localhost:1888",
      "advertiseAddress": ""
    },
    "tcp": {
      "enabled": false,
      "bindAddress": "localhost:1883",
      "auth": {
        "enabled": false,
        "passwordSalt": "0000000000000000000000000000000000000000000000000000000000000000",
        "users": null
      },
      "tls": {
        "enabled": false,
        "privateKeyPath": "private_key.pem",
        "certificatePath": "certificate.pem"
      }
    }
  }
}

5. Profiling

Name	Description	Type	Default value
enabled	Whether the profiling plugin is enabled	boolean	false
bindAddress	The bind address on which the profiler listens on	string	"localhost:6060"

Example:

{
  "profiling": {
    "enabled": false,
    "bindAddress": "localhost:6060"
  }
}

6. Prometheus

Name	Description	Type	Default value
enabled	Whether the prometheus plugin is enabled	boolean	false
bindAddress	The bind address on which the Prometheus HTTP server listens on	string	"localhost:9312"
mqttMetrics	Whether to include MQTT metrics	boolean	true
goMetrics	Whether to include go metrics	boolean	false
processMetrics	Whether to include process metrics	boolean	false
promhttpMetrics	Whether to include promhttp metrics	boolean	false

Example:

{
  "prometheus": {
    "enabled": false,
    "bindAddress": "localhost:9312",
    "mqttMetrics": true,
    "goMetrics": false,
    "processMetrics": false,
    "promhttpMetrics": false
  }
}