100 BitUSD to First Person to Publish a working Price Feed Script for Graphene

[tonyk]

FYI this bounty has been paid.

That's worth mentioning for sure ... not paid in timely manner but for sure better than

half ass excuses citing unseen yet but upcoming best practices.

[bytemaster]

FYI this bounty has been paid.

[abit]

Just a note: alt made another price feed script, see https://bitsharestalk.org/index.php/topic,20529.msg265069.html

[abit]

Bounty is all yours, where do you want the BitUSD sent?

you can send it all to "xeroc" .. I'll share a cut with @abit

Thanks  ;) my account is "abit"

[xeroc]

Bounty is all yours, where do you want the BitUSD sent?

you can send it all to "xeroc" .. I'll share a cut with @abit

[Thom]

That payout took awhile. Luck for you BM many of us here are a patient lot. Some of us grumble more than others but we're still here.

Xeroc certainly deserves the bounty, and perhaps some BROWNIES for the patience.

[bytemaster]

Bounty is all yours, where do you want the BitUSD sent?

[xeroc]

We are looking for testers who will publish a BitUSD price feed in graphene.  You will need to be an elected witness to publish the feed.

You can either provide the script to an existing witness tester or become a tester yourself. 

Unfortunately there is little documentation on HOW to do this right now, hence the bounty.   Xeroc may be able to help.

Can I request the bounty now?

[BunkerChainLabs-DataSecurityNode]

I have updated the code:

+ reneabled bter
+ added another parameter "core_exchange_factor"
+ readded publishing rules which now allows to run it in a cron job on only publish every X seconds or on larger price changes (config parameter)
+ reenabled all other currencies that have been available in BTS1 already (INDICES still not complete)

TODO:
+ indices
+ bundle prices into a single transaction

+5%

[xeroc]

I have updated the code:

+ reneabled bter
+ added another parameter "core_exchange_factor"
+ readded publishing rules which now allows to run it in a cron job on only publish every X seconds or on larger price changes (config parameter)
+ reenabled all other currencies that have been available in BTS1 already (INDICES still not complete)

TODO:
+ indices
+ bundle prices into a single transaction

[xeroc]

You script should attempt to include all feed update operations in a single transaction to minimize load on the network.

Sounds like a good idea .. but for that I need to use the transaction_builder ..
I can do this but I may not be able to finish this up until after Shanghai

Beside that, could you please give you thoughts on this topic?
https://bitsharestalk.org/index.php/topic,18831.msg242310.html#msg242310

[bytemaster]

You script should attempt to include all feed update operations in a single transaction to minimize load on the network.

[xeroc]

Can we get a summary of what data sources are being used by this script?

Code Select Expand


mythreads["yahoo"]    = threading.Thread(target = fetch_from_yahoo)
mythreads["yunbi"]    = threading.Thread(target = fetch_from_yunbi)
mythreads["btc38"]    = threading.Thread(target = fetch_from_btc38)
#mythreads["bter"]     = threading.Thread(target = fetch_from_bter)
mythreads["poloniex"] = threading.Thread(target = fetch_from_poloniex)
mythreads["bittrex"]  = threading.Thread(target = fetch_from_bittrex)
mythreads["btcavg"]   = threading.Thread(target = fetch_bitcoinaverage)


Yahoo for traditional assets like GOLD, Silver.
Yunbi, btc38, bter (disabled atm), poloniex and bittrex for BTS/BTC pair
btcavg for USD/EUR to BTC pair ..


I am not sure how my script was even possible to submit prices for the wrong
paris.

Code Select Expand


  price_feed = {
                      "settlement_price": {
                        "quote": {
                          "asset_id": "1.3.0",
                          "amount": denominator
                        },
                        "base": {
                          "asset_id": assets[asset]["id"],
                          "amount": numerator
                        }
                      },
                      "core_exchange_rate": {
                        "quote": {
                          "asset_id": assets[asset]["id"],
                          "amount": numerator
                        },
                        "base": {
                          "asset_id": "1.3.0",
                          "amount": int(denominator * 1.05) # 5% extra
                        }
                      }
                    }

I load all publishing assets into ``assets`` and read the id JIT.
I'll investigate

[bytemaster]

Can we get a summary of what data sources are being used by this script?

[Riverhead]

So @bytemaster, what else needs to be done for the price feed script to qualify for the bounty?

I think you have qualified.

Grats Xeroc! :)