market-maker-keeper | Maker Keeper Framework: Market maker keepers for OasisDEX, EtherDelta, 0x (RadarRelay, ERCdEX), Para | Cryptocurrency library
kandi X-RAY | market-maker-keeper Summary
kandi X-RAY | market-maker-keeper Summary
A big part of the DAI Stablecoin System (DSS) is the incentivization of external agents, called Keepers (which can be human but are typically automated bots). In DSS, there are two primary forms: Market Maker Keepers and Auction Keepers. Market Maker Keepers facilitate market making on supported exchanges, and thereby ensure DAI markets are liquid with minimal slippage. Auction Keepers enable bidding on auctions that secure the DSS. This repository is focused on Market Maker Keepers. Auction Keepers are available here. Market Maker Keepers work by creating a series of orders in so-called bands (defined later), which are configured with a JSON file containing parameters like spreads, maximum engagement, etc. These bands work in coordination with methods to check your available balance, as well as retrieving price from external price feeds, to ensure that liquiditiy is being placed at the correct amounts, and correct prices. Ultimately, the keepers trade an exchange pair motivated by the expected long-term convergence towards the indicated Target Price. This guide is dedicated to showing you how to create your very own Market Maker Keeper Bot as well as educate the community and help both users and developers understand the value of this incredible software. We are proud to say that all of the code needed to get a Market Maker Keeper bot up and running is open-sourced.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- Synchronize our keeper balance
- Yields excessive orders
- Removes excess orders from a list
- Return a list of bids to cancel
- Place the deposit balance
- Calculates the balance arguments for the given token
- Add funds to the wallet
- Synchronize the order book
- Get the current order book
- Synchronize keeper orders
- Update the order book
- Synchronize orders
- Parse configs
- Synchronizes new orders
- Place a new order
- Replace existing orders
- Process the request body
- Replace new orders
- Calculates new sell orders
- Returns a dict of new side orders
- Refresh the orderbook
- Synchronize new orders
- Read the config from a given spread feed
- Cancels the given orders
- Refresh the order book
- Calculates new orders based on our buy orders
market-maker-keeper Key Features
market-maker-keeper Examples and Code Snippets
Community Discussions
Trending Discussions on Cryptocurrency
QUESTION
COIN LIST is an array of crypto coins(["BTCUSDT",...]). I try to get the price using getPriceAction and RSI from getRSI and these two functions are working when I try to console DATA. But when I try to print the response after the completion of the loop. It prints the empty array and the length is 0 of this array. I want to store the DATA object (consisting of SYMBOL, closing price and RSI) as an element in the response array
...ANSWER
Answered 2022-Apr-16 at 02:43After the completion of the loop, the promises didn't get resolved yet, that's why it print an empty array.
One way to achieve what you need is using await for(...), or wait for all promises to be resolved, and then print the results.
QUESTION
I am trying to connect my Metamask wallet to my Java Spring-Boot backend. I was trying to follow the example here. I am able to autogenerate the nonce and receive the wallet ID without a problem. I am trying to verify the signed nonce from the Wallet on the server to make sure that the sender is indeed who they say they are. However, I am unable to find any documentation on Web3J to do this.
Is web3j not the right package to use for this? The example shows how to do the verification on NodeJS based on javascript but I don't find any example on how to do this on Java.
My understanding is that the public key is the wallet ID itself and that the message is the nonce signed by the private key of the wallet which is not shared for obvious reasons. According to this, I would need to "decrypt" the message using the public key and see if the decrypted message is same as the nonce that the backend sent to Metamask to sign. Is this correct?
Here is my code to create and send the nonce to UI:
...ANSWER
Answered 2022-Apr-03 at 03:03I was able to figure this out finally. My initial understanding was incorrect. I was not supposed to attempt to decrypt the message to retrieve the nonce. Rather I needed to use the nonce to see if I can retrieve the public key of the private key used to sign the message and see if that public key retrieved matches the wallet ID.
The algorithm:- Receive the signed message and the wallet ID from the client
- Retrieve the nonce sent to the client with the same wallet ID
- Generate the hash of the nonce
- Generate the signature data from the message. This basically retrieves the V, R and S and. R and S are the outputs of the ECDSA Signature and V is the Recovery ID.
- Using the ECDSA Signature and Hash of the Nonce, generate the possible public Key that was used to sign the message. At max, one will be able to generate 4 possible public keys for this message.
- Check if any of the generated keys match public wallet ID that the client sent. If it matches, then we have a positive match. Generate the JWT and respond to the client. If not, we know that the nonce was not signed by the Metamask wallet we expected.
Here is a sample code for UI (JavaScript and HTML):
QUESTION
status: 400, error code: -1013, error message: Filter failure: PRICE_FILTER
I am trying to create a new order to sell all SCRT that are on my account and I cannot figure out what is the problem.
The filters for SCRTBUSD are:
ANSWER
Answered 2022-Mar-16 at 20:14tickSize for SCRTBUSD is: 0.001.
Therefore, you have to round the quantity to the next 0.001. For example:
QUESTION
How does one parse the data in an SPL token account? It contains a binary blob and I'd like to get the token type and number of tokens.
An acceptable language is solana-cli, web3.js, or solana.py. I'm looking for any solution.
...ANSWER
Answered 2022-Mar-15 at 03:45The RPC give a great way to parse the data by default. You can use getParsedAccountInfo in web3.js.
Let's take the token account at 9xqnnfeonbsEGSPgF5Wd7bf9RqXy4KP22bdaGmZbHGwp
QUESTION
I'm having issues with plotting the Coral Trend indicator colour code, into my 15min 21EMA security function. Since the Coral Trend indicator colour code has a mutable variable, I cannot resolve it. This is next level coding for me, haha.
I will post
- the code
- a screenshot
- the problem
- the solution I tried
The code:
...ANSWER
Answered 2022-Feb-28 at 20:23You have to use the request.security() function in global scope, and only then use it.
You can do something like this:
QUESTION
I am working with the Binance API. I am connecting to their API and trying to assess if Binance has a list of assets on their platform or not. The list of assets is seen below:
...ANSWER
Answered 2021-Sep-21 at 14:37Try this:-
QUESTION
I am looking to work with ETH tokens on the Polygon network. My aim is to build a simple payment splitting application. Primarily to split royalties from Opensea. The issue I have come across is that Opensea doesn't seem to pay royalties in Matic token, instead, royalties are paid in ETH (plus other tokens).
I understand how to handle the network native, Matic, as well as ERC20 tokens. My main question is, what token type is ETH on the Polygon network? Is it an ERC20 (or similar) used to represent ETH on Polygon or does it have a special token type and privileges by virtue of Polygon being a layer two solution for Ethereum?
I'm sorry if this is a basic question, I tried to find answers online but because of the keywords all of the results were about bridging ETH to Polygon.
...ANSWER
Answered 2022-Feb-11 at 10:55Opensea uses WETH token on Polygon, which is an ERC-20 token representing the Ethereum mainnet ETH.
Please note, the "purple" Polygon ETH you see on OpenSea, is actually WETH (Wrapped Ether) on the blockchain level of Polygon.
Source: https://support.opensea.io/hc/en-us/articles/4403264773523-How-do-I-find-my-funds-on-Polygon-
QUESTION
I am having an issue related to validating cryptocurrency wallet addresses, specifically USDT.
USDT can be validated either as a BTC or ETH address, depending on the network type.
Basically it goes like that:
- If cryptocurrency is USDT and chain type is ERC20, validate the address against ETH address format.
- If cryptocurrency is USDT and wallet type is OMNI, validate the address against BTC address format.
I haven't managed to find a specific validation for USDT:TRC20 addresses and I am not sure how to validate them.
...ANSWER
Answered 2021-Oct-15 at 06:32trc20 address features:
An encoded Mainnet address begins with T and is 34 bytes in length.
QUESTION
General NFT question, but don't flame me, I really tried to find the answer.
Could NFT be created from the same image or copy of this image?
For example, take this NFT Lion Cat that I created: https://rarible.com/token/0x60f80121c31a0d46b5279700f9df786054aa5ee5:1200950?
Can someone download the image and create an NFT from it?
I mean, isn't it part of the idea that this is original content by me and I have the copyrights for it?
In the Image area, you got the RAW image that proves you took this picture, nobody but the photographer has this RAW image. But to create this image NFT I didn't have to provide it.
...ANSWER
Answered 2022-Feb-06 at 09:02Could NFT be created from the same image or copy of this image?
Can someone download the image and create an NFT from it?
Yes to both questions. It is technically possible to create multiple NFTs that all represent the same image. They can be placed in the same collection, as well as across multiple collections.
As NFTs basically contain links to this image, it's not possible to prevent someone from creating a link to a public resource, i.e. from creating another NFT representing the same image.
I mean, isn't it part of the idea that this is original content by me and I have the copyrights for it?
The ERC-721 standard mostly defines just the technical specifications. But it doesn't really cover the licensing, ownership/authorship of the underlying resource, and other non-technical topics.
An NFT only proves ownership of the token - not copyrights of the image. Also, it proves ownership by an address - not by a person. Because there can be zero to multiple people holding a private key to the same address (holding the NFT representing the image).
QUESTION
import mplfinance as mpf
import talib as ta
import matplotlib.pyplot as plt
import numpy as np
%matplotlib notebook
test=df
WMA20 = ta.WMA(test['close'], timeperiod=20)
WMA60 = ta.WMA(test['close'], timeperiod=60)
WMA100 = ta.WMA(test['close'], timeperiod=100)
WMA200 = ta.WMA(test['close'], timeperiod=200)
# Set buy signals if current price is higher than 50-day MA
test['Buy'] = (test['close'] > WMA20) & (test['close'].shift(1) <= WMA20)
#plot
tcdf =test[['close']]
tcdf=tcdf.reset_index()
tcdf['date'] = tcdf['date'].apply(lambda x: x.value)
for i in range(len(test['Buy'])):
if test['Buy'][i]==True:
apd = mpf.make_addplot(tcdf.iloc[i],type='scatter',markersize=20,marker='o')
mpf.plot(test,addplot=apd, type='candle',volume=True)
ANSWER
Answered 2022-Jan-28 at 12:35The problem is you are calling make_addplot() with only one data point at a time. There is also no need for the date index in the make_addplot() call; only the data.
Also, the length of data (number of rows) passed into make_addplot() must be the same as the length (number of rows) pass into plot().
make_addplot() should not be within the loop.
Try replacing this part of the code:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install market-maker-keeper
Clone the market-maker-keeper repository and switch into its directory:
Initializing the git submodules that will bring in both the pymaker and the pyexchange library.
Check to make sure you have the correct version (Python 3.6.6) of Python by running:
To set up the virtual environment and install requirements, run the following script:
Source the new locally created virtual environment
To start, take the sample configuration file below and copy-paste it to a .json file within the root directory of your market-maker-keeper folder. For ease of use, we sugges to name it bands.json. This bands file will get configured as a command-line argument when we start up the Market Maker Keeper.
Install Docker Community Edition for your OS:.
Install Docker Community Edition for your OS:
Install Docker Compose for your OS:
Clone the market-maker-keeper repository and switch into its directory:
Initializing the git submodules that will bring in both the pymaker and the pyexchange library.
Build keeper Docker image.
Create configuration directory. This directory will hold all configuration files (bands) for keepers
Create environment variables. Create a file named .env and add all environment variables required to run keeper. docker-compose.yml file contains a configuration example for Coinbase ETH-DAI keeper that can be started with an .env file similar with the one below
Run keeper.
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page
