trading | toy trading engine that only supports | Cryptocurrency library

by peterkeen Ruby Version: Current License: No License

X-Ray Key Features Code Snippets(2)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | trading Summary

trading is a Ruby library typically used in Blockchain, Cryptocurrency, Bitcoin applications. trading has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

This is a simple toy trading engine. Orders stream in on STDIN and fulfilled trades stream out on STDOUT. The engine supports arbitrary commodities. Note: Times are always in ISO-8601 UTC (eg "2013-12-01T03:15:13Z").

Support

Quality

Security

License

Reuse

Support

trading has a low active ecosystem.

It has 84 star(s) with 16 fork(s). There are 8 watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 1 have been closed. On average issues are closed in 115 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of trading is current.

Quality

trading has 0 bugs and 0 code smells.

Security

trading has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

trading code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

trading does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

trading releases are not available. You will need to build from source code and install.

trading saves you 129 person hours of effort in developing the same functionality from scratch.

It has 324 lines of code, 22 functions and 10 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

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trading Key Features

No Key Features are available at this moment for trading.

trading Examples and Code Snippets

Create a snapshot of a dataset .

python

Lines of Code : 86

License : Non-SPDX (Apache License 2.0)

Copy

def snapshot(path, compression="AUTO", reader_func=None, shard_func=None):
  """API to persist the output of the input dataset.

  The snapshot API allows users to transparently persist the output of their
  preprocessing pipeline to disk, and materi

Entry point for the trading bot application .

java

Lines of Code : 3

License : Permissive (MIT License)

Copy

public static void main(String[] args) {
        SpringApplication.run(TradingBotApplication.class, args);
    }

Community Discussions

Trending Discussions on trading

FutureBuilder - How to iterate through a list of Futures

Replace NA's in R with the current rollapply value

How do I change the name of a resampled column?

Available data in TradingView's exported chart data file

Tradingview - pine script for Take profit and Stop loss by percentage

Flutter: How do I disable scrolling for a GridView widget, but have scrolling enabled for the page as a whole?

Comparing two files based on multiple field using awk ( or may be python)

How to fix "Unidentified contract"? OpenSea is unable to “understand” ERC1155

How to reuse class from another file

How to implement the Hindenburg omen indicator?

QUESTION

FutureBuilder - How to iterate through a list of Futures

Asked 2022-Mar-15 at 11:27

I want to fetch price data of trading pairs specified inpriceList from the public Binance API and create a dynamic List of Card widgets using API response. I am failing at this step as the future argument of FutureBuilder does not accept the list of Futures : List> pliList

Thank you.

My code:

...

ANSWER

Answered 2022-Mar-15 at 11:27

Do it like this this:

Source https://stackoverflow.com/questions/71481407

QUESTION

Replace NA's in R with the current rollapply value

Asked 2022-Mar-12 at 16:10

I have a 10 year dataset from Tesla returns (2 day difference percentage)

...

ANSWER

Answered 2022-Mar-12 at 16:10

Use na.locf0 which stands for last occurrence carried forward. Below we have simplified the code. Omit facet = NULL if you want separate panels. The code below does not use dplyr so you can write just lag in place of stats::lag if you don't have dplyr loaded. (dplyr clobbers R's lag with its own incompatible version.)

Source https://stackoverflow.com/questions/71442800

QUESTION

How do I change the name of a resampled column?

Asked 2022-Mar-10 at 21:58

I have a dataframe with the price fluctuations of the Nasdaq stock index every minute. In trading it is important to take into account data on different time units (to know the short term, medium and long term trends...)

So I used the resample() method of Pandas to get a dataframe with the price in 5 minutes in addition to the original 1 minute:

...

ANSWER

Answered 2022-Mar-10 at 17:04

You can use:

Source https://stackoverflow.com/questions/71427891

QUESTION

Available data in TradingView's exported chart data file

Asked 2022-Mar-06 at 14:05

To back-test a trading strategy, I use the replay feature in trading view and mark my trades by adding a "long position" or "short position" from the left panel. Like this:

I need to save the data (chart data including the positions, or any other drawing I have in that layout) as an Excel or a CSV file on my PC.

I know TradinView has export chart data features but does it include all the positions and the drawings or is it just chart data and the indicators?

If that doesn't work, is there any way to get that data? (from tradingview api for example)

...

ANSWER

Answered 2022-Feb-20 at 10:59

I'm not sure that is what you are looking for but recently I found this GitHub:

https://github.com/Mathieu2301/TradingView-API

That repo is written in JS, but the author provides some examples and the first sentence is:

"Get real-time market prices and indicator values from Tradingview !"

I hope that you found this useful.

Source https://stackoverflow.com/questions/71193413

QUESTION

Tradingview - pine script for Take profit and Stop loss by percentage

Asked 2022-Mar-02 at 21:12

I have a serious problem merging Take profit and Stop loss in one script.

I'm using this script for TP https://kodify.net/tradingview/orders/percentage-profit/

and this one for SL https://kodify.net/tradingview/orders/percentage-stop/

I came up with the below script which doesn't look to SL. Hence, the order will remain open until TP % is reached. I need your help to fix it and activate SL same as TP.

...

ANSWER

Answered 2021-Aug-06 at 17:41

Here you go, with couple of additions

Source https://stackoverflow.com/questions/68682898

QUESTION

Flutter: How do I disable scrolling for a GridView widget, but have scrolling enabled for the page as a whole?

Asked 2022-Feb-06 at 09:48

I'm building an app where I have a page which gives information about a specific trading card. I want the page to be scrollable, but I also want to have a grid on the page, with each grid cell showing one data point. I made the grid using GridView.count().

My problem is that instead of have a page which I can scroll through, the top half of the page stays static, while the grid is scrollable. How do I make the grid static, while the rest of the page scrollable? I intend to have more data below this grid as well, and I want to user to be able to scroll to see all of it, with the grid being a static component of the page.

Here's my code:

...

ANSWER

Answered 2022-Feb-06 at 09:47

You can provide physics: NeverScrollableScrollPhysics() on GridView to disable scroll effect. If you want scrollable as secondary widget use primary: false,

To have Full Page scrollable, you can use body:SingleChildScrollView(..) or better using body:CustomScrollView(..)

Source https://stackoverflow.com/questions/71005867

QUESTION

Comparing two files based on multiple field using awk ( or may be python)

Asked 2022-Feb-04 at 13:07

I want to compare two files and display the differences and the missing records in both files. Based on suggestions on this forum, I found awk is the fastest way to do it.

Comparison is to be done based on composite key - match_key and issuer_grid_id

Code:

...

ANSWER

Answered 2022-Feb-03 at 13:48

Just tweak the setting of key at the top to use whatever set of fields you want, and the printing of the mismatch message to be from key ... key instead of from line ... FNR:

Source https://stackoverflow.com/questions/70971382

QUESTION

How to fix "Unidentified contract"? OpenSea is unable to “understand” ERC1155

Asked 2022-Jan-19 at 23:00

I have deployed a ERC-1155 based contract (based on OpenZeppelin) and minted some NFTs on this contract successfully. But when I want to use these NFTs in OpenSea, it always says "Unidentified contract".

Example: https://testnets.opensea.io/assets/0xc7d3e4a5A0c3e14ba8C68ea1b8a99a9dBf3ca76F/2

API-Example: https://testnets-api.opensea.io/api/v1/asset/0xc7d3e4a5A0c3e14ba8C68ea1b8a99a9dBf3ca76F/2/?force_update=true

Following their official Tutorial repository (which does not compile any more because of outdated dependencies and other issues) I have added some (maybe) opensea-specific functions and data that might required for OpenSea in order to work properly. However, OpenSea is able to grab all required data to display an NFT, but as long as they say "Unidentified contract", this all makes no sense so far.

My question has:

has someone already managed to deploy a ERC-1155 and used it with OpenSea properly without this issue? Is there anything we have to "register" somehow contracts that are not based on ERC-721?

🔢 Code to reproduce ...

ANSWER

Answered 2021-Aug-27 at 22:07

I finally found the root cause! OpenSea expects a public property called name in order to display the proper Name of the Collection instead of a static label Unidentified contract.

I came across this while looking at their reference code (which depends on a now 3-year-old MultiToken-Contract implementation and needs all in all some downgrades of Node and other tools in order to get it build [a downgrade to Node 10 worked best for me today] ).

Source https://stackoverflow.com/questions/68891144

QUESTION

How to reuse class from another file

Asked 2021-Dec-26 at 13:36

I import technicals.py into bot.py and want to reuse the variable sl and tp from the class instance process_candles.

If a constant number is given to sl and tp in bot.py, the script is able to work. However, the desired result is to get variable sl and tp which is calculated in the class instance process_candles. from technicals.py.

snippet technicals.py as below:

...

ANSWER

Answered 2021-Dec-26 at 13:35

You can define your tp and sl as class variables of Technicals.

Source https://stackoverflow.com/questions/70486813

QUESTION

How to implement the Hindenburg omen indicator?

Asked 2021-Dec-21 at 02:21

As defined here the Hindenburg omen indicator is:

The daily number of new 52-week highs and 52-week lows in a stock market index are greater than a threshold amount (typically 2.2%).

To me it means, we roll daily and look back 52 weeks or 252 business/trading days, then count the number of highs (or lows) and finally compute the return of that or pct_change, which is the ratio of new highs (or lows) they want to monitor e.g., being above 2.2%

...

ANSWER

Answered 2021-Dec-21 at 02:21

Interesting question! Could I suggest the following code - it runs much faster than the apply solution because it is vectorised, and also lays out the steps a bit more clearly so you can inspect the interim results.

I got a different result to your code - you can compare by also plotting your result on the timeseries at bottom.

Source https://stackoverflow.com/questions/70251565

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install trading

You can download it from GitHub.
On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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