Oracle autovoting script for Terra(v0.3.0+) oracle by B-Harvest
The script is in highly experimental state, and users should aware that all result from the terra_oracle_voter script is responsible to the user himself/herself.
Python3.8 Recommended
The server running this script should run terrad with synced status.
- error handling
- when coinone price, last swap price, or fx rate is unavailable, vote -1 for all oracle
- when coinone bid-ask spread is wider than
bid_ask_spread_max, vote -1 for all oracle - when other exchange price than coinone is unavailable, exclude those prices from averaging
- when calculated oracle price and last oracle price differ more than
stop_oracle_trigger_recent_diverge, vote -1 for the denom
- period-customized vwma(volume weighted moving average) for coinone market price
- customized weights for each exchange's market price
- use LCD endpoint to get recent oracle prices
- Thank you Peter(ChainLayer.io) for reviewing and testing the script!
telegram_token = ""
telegram_chat_id = ""
stop_oracle_trigger_recent_diverge = 0.1 # stop oracle when price change exceeds stop_oracle_trigger
stop_oracle_trigger_exchange_diverge = 0.1 # stop oracle when price change exceeds stop_oracle_trigger
bid_ask_spread_max = 0.05 # vote negative price when bid-ask price is wider than bid_ask_spread_max
feeder = "" # oracle feeder address
validator = "" # validator address
key_name = "" # oracle feeder key name
key_password = "" # oracle feeder key password
fee_denom = "ukrw" # fee denom
fee_gas = "170000" # fee gas
fee_amount = "356200" # fee amount in ukrw
home_cli = "/home/ubuntu/.terracli" # terracli home directory
node = "tcp://:26657" # node to broadcast the txs
terracli = "sudo /home/ubuntu/go/bin/terracli" # path to terracli binary
coinone_share_default = 1.0 # default coinone weight for averaging oracle price
bithumb_share_default = 0 # default bithumb weight for averaging oracle price
gopax_share_default = 0 # default gopax weight for averaging oracle price
gdac_share_default = 0 # default gdac weight for averaging oracle price
price_divergence_alert = False # alert when exchange prices diverge
vwma_period = 3*600 # period for volume weight moving average of coinone price in seconds
band_endpoint = "https://terra-lcd.bandchain.org" # an end-point to bandprotocol query node
band_luna_price_params = "13,1_000_000_000,10,16" # A set of parameters for query a specific request on BandChain which is consist of 4 values (oracle_script_id,multiplier,min_count,ask_count)
fx_api_option = "alphavantage,free_api,band" # A list of fx price data sources where results from each source in the list are taken to find the median.
BINANCE_KEY= BINANCE account api_key(read only)
BINANCE_SECRET= BINANCE account api_secret(read only)
fx_map = {"uusd": "USDUSD","ukrw": "USDKRW","usdr": "USDSDR","umnt": "USDMNT","ueur": "USDEUR","ujpy": "USDJPY","ugbp": "USDGBP","uinr": "USDINR","ucad": USDCAD","uchf": "USDCHF","uhkd": "USDHKD","uaud": "USDAUD","usgd": "USDSGD","ucny":"USDCNY",}
active_candidate = ["uusd","ukrw","usdr","umnt","ueur","ujpy","ugbp","uinr","ucad","uchf","uhkd","uaud","usgd","ucny"] # candidate for active denom set
hardfix_active_set = ["uusd","ukrw","usdr","umnt","ueur","ujpy","ugbp","uinr","ucad","uchf","uhkd","uaud","usgd","ucny"] # hardfix the active set. does not care last oracle price availability
chain_id = "columbus-4" # chain id
round_block_num = 5.0 # number of blocks for each oracle round
Copy the oracle.service file to /etc/systemd/system and change the location of the working directory and oracle file accordingly enable the service with systemctl enable oracle start the service with systemctl start oracle