BitShares Witness Monitor

This is a BitShares witness monitoring script with telegram integration.

It has been tested with node v.8 LTS.

To use, clone the repo (or download the zip).

git clone https://github.com/clockworkgr/bitshares-witness-monitor
cd bitshares-witness-monitor
npm install

Note: To avoid installing Node, see below for Docker instructions.

Open config-sample.json in your favourite text editor and edit with your own settings:

{
    "witness_id": "1.6.XXX",
    "api_node": "wss://<your_preferred_api_node>",
    "private_key": "5kTSOMEPRIVATEKEY111111111111",
    "missed_block_threshold": 3,
    "checking_interval": 10,
    "reset_period": 300,
    "witness_signing_keys": [ "BTSXXXXXXXXXXXXXXXXXX", "BTSYYYYYYYYYYYYYYY"],
    "recap_time": 60,
    "debug_level": 3,
    "telegram_token": "<telegram_access_token>",
    "telegram_authorized_users": ["<user_id>"],
    "retries_threshold": 3,
    "feeds_to_check" : {
        "USD": 60,
        "CNY": 120,
    },
    "feed_checking_interval": 10,
    "stale_blockchain_threshold": 10
}

and then save as config.json

Key	Description
witness_id	The id of the witness to monitor.
api_node	Bitshares Websocket url to use to retrieve blockchain information.
private_key	The active key of your normal witness-owning account used to sign the witness_update operation.
missed_block_threshold	How many blocks must be missed within a reset_period sec window before the script switches your signing key. Recommend to set at 2 or higher since 1 will possibly trigger updates on maintenance intervals (see bitshares-core#504).
checking_interval	How often should the script check for new missed blocks in seconds.
witness_signing_keys	All the public keys of your witness, to switch key if too many blocks are missed.
recap_time	The interval in minutes on which bot will auto-notify telegram user of latest stats (if authenticated).
reset_period	The time after which the missed blocks counter is reset for the session in seconds.
debug_level	Logging level. Can be: 0 (Minimum - Explicit logging & Errors, 1 (Info - 0 + Basic logging), 2 (Verbose - 1 + Verbose logging), 3. Transient - 2 + Transient messages. Not currently used.
telegram_token	The telegram access token for your notifications bot. You can create one with BotFather.
telegram_authorized_users	List of userId authorized to interact with the bot. You can get your user Id by talking to the bot, or use a bot like @userinfobot.
retries_threshold	Number of failed connections to API node before the bot notifies you on telegram.
feeds_to_check	Dictionary of assets symbols (and their respective tolerated max age in minutes) which price publication should be checked.
feed_checking_interval	How often should the script check for unpublished feeds.
stale_blockchain_threshold	How many seconds before a node is considered desynchronized (should be more than block time).

Running

Simply use:

node index.js

inside a screen (or similar) session.

For peace of mind I recommend you also install the forever tool:

sudo npm install forever -g

and run as:

forever index.js

instead.

Depending on your environment, you might have to add the --color flag to enable colored logging output as below:

node index.js --color

or

forever index.js --color

NOTE: In case forever restarts the process, it will start with the DEFAULT config.json you have provided and not with the session-only changes you might have made using the telegram commands below.

Alternatively you can run it through Docker:

docker build . -t bitshares-witness-monitor:latest
docker run bitshares-witness-monitor:latest -v ./config.json:/bitshares-witness-monitor/config.json

This will build the image, then run it with ./config.json file mounted in the image.

Telegram commands

Open a chat to your bot and use the following:

• /start: Introduction message.
• /help: Get the list of available commands.
• /stats: Return the current statistics of the monitoring session.
• /settings: Display current configuration.
• /switch: IMMEDIATELY update your signing key to the new available signing key.
• /signing_keys <BTS_public_signing_key1> <BTS_public_signing_key2>: Set a new list of public keys.
• /new_node wss://<api_node_url>: Set a new API node to connect to.
• /threshold X: Set the missed block threshold before updating signing key to X blocks.
• /interval Y: Set the checking interval to every Y seconds.
• /window Z : Set the time until missed blocks counter is reset to Z seconds.
• /recap T : Set the auto-notification interval of latest stats to every T minutes. Set to 0 to disable.
• /retries N : Set the threshold for failed API node connection attempts to N times before notifying you in telegram.
• /feed_checking_interval I: Set the interval of publication feed check to I minutes.
• /feeds <symbol1>:<threshold1> <symbol2>:<threshold2> ...: Set the feeds (and their threshold) to check to the provided list.
• /reset : Reset the missed blocks counter in the current time-window.
• /pause : Pause monitoring.
• /resume: Resume monitoring.

Send this to @BotFather /setcommands to get completion on commands:

start - Introduction
help - List all commands
stats - Gather statistics
settings - Display current settings
switch - Update signing key to backup
signing_keys - Set signing keys
new_node - Set a new API node to connect to
threshold - Set the missed block threshold
interval - Set the checking interval
window - Set the time until missed blocks counter is reset
recap - Set the auto-notification interval of latest stats
retries - Set the threshold for failed API node connection attempts 
feed_checking_interval - Set the interval of publication feed check
feeds - Set the feeds to check
reset - Reset the missed blocks counter
pause - Pause monitoring
resume - Resume monitoring

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