iota-mqtt-poc
IOTA Proof of Concept, service that stores MQTT messages on the tangle.
Background
IOTA Javascript Library Hello World Tutorial
Requirements
Make sure you have Node.js and the Heroku Toolbelt installed.
Node Packages
Using iota.lib.js to connect to IOTA tangle. Open Source
Using MQTT.js as MQTT client. Open Source
Using Async to handle queues. Open Source
Using node-cleanup to properly close connections on exit. Open Source
Using url to parse full URL. Open Source
Cloning & Running locally
git clone [email protected]:nicoschtein/iota-mqtt-poc.git # or clone your own fork
cd iota-mqtt-poc
npm install
heroku local
Environmental Variables
MQTT
- MQTT_FULL_URL
- MQTT Broker connection url with optional user/password parameters.
- Example:
'mqtt://[user:pass@]localhost:1883'
- MQTT_CLIENT_PREFIX
- Prefix to use on the MQTT client ID, followed by an 8-char string (pseudo)randomly generated using
Math.random()
. - Example:
'iota_poc_'
resulting iniota_poc_3bc3eb87
- Prefix to use on the MQTT client ID, followed by an 8-char string (pseudo)randomly generated using
- MQTT_TOPIC
- MQTT Topic to subscribe to, with support for
#
and+
. - Example:
'/devices/+'
- MQTT Topic to subscribe to, with support for
IOTA
- IOTA_HOST
- Host of the IOTA Node to be used. IP and host names supported.
- Example:
'http://127.0.0.1'
or'http://localhost'
- IOTA_PORT
- Port of the IOTA Node to be used.
- Example:
14265
- IOTA_ADDRESS
- IOTA Address to send the transactions to.
- Example:
'999999999999999999999999999999999999999999999999999999999999999999999999999999999'
- IOTA_SEED
- IOTA Seed for sending the transactions from.
- Example:
'999999999999999999999999999999999999999999999999999999999999999999999999999999999'
- IOTA_TAG
- IOTA Seed for bundling transactions. Maximum of 13 ascii chars.
- Example:
’iota-mqtt-poc’
Setting Environmental Vars
.env
file.
Locally using Create a new file named .env
and place it on the root directory, next to package.json
.
MQTT_FULL_URL = 'mqtt://[user:pass@]localhost:1883'
MQTT_CLIENT_PREFIX = 'iota_poc_'
MQTT_TOPIC = '/devices/+'
IOTA_HOST = 'http://127.0.0.1'
IOTA_PORT = 14265
IOTA_ADDRESS = '999999999999999999999999999999999999999999999999999999999999999999999999999999999'
IOTA_SEED = '999999999999999999999999999999999999999999999999999999999999999999999999999999999'
IOTA_TAG = 'iota-mqtt-poc'
Remotely using Heroku Toolbet
Requires an existing Heroku App, see “Deploying to Heroku” for more info
For each var use command config:set
to set the values, if the value is already set it will be replaced.
...
heroku config:set IOTA_HOST='http://127.0.0.1'
heroku config:set IOTA_PORT=14265
...
To view current state of your vars:
heroku config
Deploying to Heroku (Optional)
heroku create
git push heroku master
Open remote App
heroku open