Goerli Gas Estimation Issue

[0xSpuddy]

In recent days, when Telliot calls submitValue on goerli, the transactions are frequently failing with Send transaction failed: ValueError({'code': -32000, 'message': 'replacement transaction underpriced'}). I believe this might be because we're using a mainnet gas station api to estimate the goerli gas, and the gas price on goerli can actually be higher than it is on mainnet sometimes.

start command: telliot report -a goerli6 -p YOLO -wp 10000 -qt eth-usd-spot

INFO    | telliot_feeds.reporters.tellor_flex | Estimated profit: $421.38
INFO    | telliot_feeds.reporters.tellor_flex | tip price: 452.25, gas costs: 30.874156250000002
INFO    | telliot_feeds.reporters.tellor_flex | Estimated percent profit: 1364.82%
INFO    | telliot_feeds.sources.price_aggregator | Running median on [1664.03, 1664.72, 1663.75, 1664.82]
INFO    | telliot_feeds.sources.price_aggregator | Feed Price: 1664.375 reported at time 2023-02-23 10:00:21.381446+00:00
INFO    | telliot_feeds.sources.price_aggregator | Number of sources used in aggregate: 4
DEBUG   | telliot_feeds.reporters.interval | IntervalReporter Encoded value: 00000000000000000000000000000000000000000000005a39d7d44368c58000
DEBUG   | telliot_feeds.reporters.interval | Sending submitValue transaction
ERROR   | telliot_feeds.reporters.interval | Send transaction failed: ValueError({'code': -32000, 'message': 'replacement transaction underpriced'})
INFO    | telliot_feeds.reporters.interval | Sleeping for 10000 seconds
INFO    | telliot_feeds.reporters.tellor_360 | Current Oracle stakeAmount: 100.0
INFO    | telliot_feeds.reporters.tellor_360 |
            STAKER INFO
            start date: 1674496020
            stake_balance: 10000.0
            locked_balance: 0
            last report: 1677131664
            reports count: 314

INFO    | telliot_feeds.reporters.interval | Current query: {"type":"SpotPrice","asset":"eth","currency":"usd"}
INFO    | telliot_feeds.sources.price_aggregator | Running median on [1641.86, 1641.8, 1639.66, 1643.09]
INFO    | telliot_feeds.sources.price_aggregator | Feed Price: 1641.83 reported at time 2023-02-23 12:47:05.104314+00:00
INFO    | telliot_feeds.sources.price_aggregator | Number of sources used in aggregate: 4
INFO    | telliot_feeds.sources.price_aggregator | Running median on [18.72, 18.68]
INFO    | telliot_feeds.sources.price_aggregator | Feed Price: 18.7 reported at time 2023-02-23 12:47:05.104602+00:00
INFO    | telliot_feeds.sources.price_aggregator | Number of sources used in aggregate: 2
INFO    | telliot_feeds.reporters.tellor_flex |
                tips: 40.32666666666666 TRB
                gas limit: 350000
                legacy gas price: 53

INFO    | telliot_feeds.reporters.tellor_flex | Estimated profit: $723.65
INFO    | telliot_feeds.reporters.tellor_flex | tip price: 754.11, gas costs: 30.4559465
INFO    | telliot_feeds.reporters.tellor_flex | Estimated percent profit: 2376.06%
INFO    | telliot_feeds.sources.price_aggregator | Running median on [1641.86, 1641.83, 1639.66, 1643.09]
INFO    | telliot_feeds.sources.price_aggregator | Feed Price: 1641.8449999999998 reported at time 2023-02-23 12:47:05.525731+00:00
INFO    | telliot_feeds.sources.price_aggregator | Number of sources used in aggregate: 4
DEBUG   | telliot_feeds.reporters.interval | IntervalReporter Encoded value: 000000000000000000000000000000000000000000000059012d30a1e3357267
DEBUG   | telliot_feeds.reporters.interval | Sending submitValue transaction
ERROR   | telliot_feeds.reporters.interval | Send transaction failed: ValueError({'code': -32000, 'message': 'replacement transaction underpriced'})
INFO    | telliot_feeds.reporters.interval | Sleeping for 10000 seconds
^CERROR   | telliot_core | Exception occurred in telliot-core app
ERROR   | telliot_core | <class 'asyncio.exceptions.CancelledError'>
ERROR   | telliot_core | 

[oraclown]

We should use the goerli gas price API: https://docs.etherscan.io/v/goerli-etherscan/api-endpoints/geth-parity-proxy#eth_gasprice

[oraclown]

It returns this JSON, where apparently "result" is the gas price in wei:

{
   "jsonrpc":"2.0",
   "result":"0x7029fe63",
   "id":73
}

Would need to figure out how to convert to int. Maybe something like

int(bytes.fromhex(rps["result"]))

[oraclown]

Or maybe there's one w/o api key from here: https://explorer.bitquery.io/goerli/gas

[0xSpuddy]

Forgive me if I'm missing something here, but could we use a node / RPC call for gas prices estimation on some of these chains?

[akremstudy]

there is also this, https://api.owlracle.info/v3/goerli/gas, not sure how much we can rely on that api though, since we just started using but for gas price it doesn't seem to require an api key.

[akremstudy]

Forgive me if I'm missing something here, but could we use a node / RPC call for gas prices estimation on some of these chains?

Good question. I'm not sure why we don't use web3.eth.gas_price to get the price of gas. Was there a reason to go with other API's, @oraclown?

[oraclown]

Forgive me if I'm missing something here, but could we use a node / RPC call for gas prices estimation on some of these chains?

Good question. I'm not sure why we don't use web3.eth.gas_price to get the price of gas. Was there a reason to go with other API's, @oraclown?

Discussed on discord, but I think bc it was unreliable when I tested it. Happy to try again, or maybe I just never tried it..

[oraclown]

I think this can be closed bc of #364