Lido On Polygon Depositor bot

Delegator and Reward Distributor bot

The bot is used to delegate and distribute rewards

Reward Distribution

The Bot will distribute rewards each cycle (default 24h), we do some checks before executing the transaction: Check if the gas fees are cheap. Check if there are some accumulated rewards. When the transaction is submitted successfully the process will sleep for a cycle otherwise the Bot will keep trying to submit a transaction each 13 sec (block time).

Delegation

The Bot will delegate the buffered tokens accumulated in the stMatic contract. Each block time we do a check to see if there are enough buffered tokens to delegate. If the actual buffered tokens are 3%(MAX_RATE) of the total staked tokens in the protocol we delegate automatically without checking gas fees. If the buffered tokens are between 1%(MIN_RATE) and 3%(MAX_RATE) of the total staked tokens, the delegation is executed each cycle (default 24h). If the total Buffered is less than 1%(MIN_RATE) we don’t delegate.

How to install

Only for development: Ganache CLI is required to run Brownie

npm install -g ganache-cli

Python packages

git clone git@github.com:Shard-Labs/depositor-bot.git
cd depositor-bot
pip install -r requirements.txt

Run script

To run (development):

Run:

# For depositor bot
brownie run depositor --network=mainnet

Deploy

To run bot in dry mode in docker:

1. Required envs:NETWORK (e.g. mainnet) and WEB3_INFURA_PROJECT_ID.
2. Run

docker-compose up

• Optional: provide WALLET_PRIVATE_KEY env to run with account.
• Optional: provide CREATE_TRANSACTIONS env ('true') to send tx to mempool.
• Optional: cycle CYCLE env time interval to delegate and distribute rewards.

Available variables

Vars in env	Amount	Default - Raw	Description
NETWORK (required)	-	None	Network (e.g. mainnet, goerli)
WEB3_INFURA_PROJECT_ID (required)	-	None	Project ID in infura
MAX_GAS_FEE	100 GWEI	100 gwei	Bot will wait for a lower price. Treshold for gas_fee
DISTRIBUTE_REWARDS_MAX_GAS_FEE	300 GWEI	300 gwei	Bot will distribute rewards if the for gas_fee is less than this value
DISTRIBUTE_REWARDS	true	true	If true Distribute rewards else ignore
GAS_FEE_PERCENTILE_1	20	20	Percentile for first recommended fee calculation
GAS_FEE_PERCENTILE_DAYS_HISTORY_1	1	1	Percentile for first recommended calculates from N days of the fee history
GAS_FEE_PERCENTILE_2	20	20	Percentile for second recommended fee calculation
GAS_FEE_PERCENTILE_DAYS_HISTORY_2	2	2	Percentile calculates from N days of the fee history
GAS_PRIORITY_FEE_PERCENTILE	55	55	Priority transaction will be N percentile from priority fees in last block (min 2 gwei - max 10 gwei)
CONTRACT_GAS_LIMIT	10 * 10**6	10000000	Default transaction gas limit
WALLET_PRIVATE_KEY	-	None	Account private key
CREATE_TRANSACTIONS	-	None	If true then tx will be send to blockchain
MIN_PRIORITY_FEE	2 GWEI	2 gwei	Min priority fee that will be used in tx
MAX_PRIORITY_FEE	10 GWEI	10 gwei	Max priority fee that will be used in tx (4 gwei recommended)
PRIORITY_FEE	1 GWEI	1 gwei	Priority fee that will be used in tx
CYCLE	86400	86400	The time interval between each delegation and reward distribution
MAX_RATE	3	3	The ratio (totalBuffered * 100 / totalStaked), if the ratio > MAX_RATIO delegate automatically
MIN_RATE	1	1	The min ratio to delegate the buffered tokens