lychiyu/freqtrade_origin
1
0
Fork 0
mirror of https://github.com/freqtrade/freqtrade.git synced 2024-11-15 04:33:57 +00:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity
e8a6cae03a
freqtrade_origin/en/2023.10/producer-consumer/index.html

1810 lines
53 KiB
HTML
Raw Normal View History

Deployed f142abfb7 to 2023.10 in en with MkDocs 1.5.3 and mike 2.1.3
2024-08-20 18:08:01 +00:00
<!doctype html>
<html lang="en" class="no-js">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="canonical" href="https://www.freqtrade.io/2023.10/producer-consumer/">
<link rel="prev" href="../advanced-hyperopt/">
<link rel="next" href="../edge/">
<link rel="icon" href="../images/logo.png">
<meta name="generator" content="mkdocs-1.5.3, mkdocs-material-9.4.6">
<title>Producer/Consumer mode - Freqtrade</title>
<link rel="stylesheet" href="../assets/stylesheets/main.35e1ed30.min.css">
<link rel="stylesheet" href="../assets/stylesheets/palette.356b1318.min.css">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CRoboto+Mono:400,400i,700,700i&display=fallback">
<style>:root{--md-text-font:"Roboto";--md-code-font:"Roboto Mono"}</style>
<link rel="stylesheet" href="../stylesheets/ft.extra.css">
<script>__md_scope=new URL("..",location),__md_hash=e=>[...e].reduce((e,_)=>(e<<5)-e+_.charCodeAt(0),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
</head>
<body dir="ltr" data-md-color-scheme="default" data-md-color-primary="blue-grey" data-md-color-accent="tear">
<script>var palette=__md_get("__palette");if(palette&&"object"==typeof palette.color)for(var key of Object.keys(palette.color))document.body.setAttribute("data-md-color-"+key,palette.color[key])</script>
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
<label class="md-overlay" for="__drawer"></label>
<div data-md-component="skip">
<a href="#producer-consumer-mode" class="md-skip">
Skip to content
</a>
</div>
<div data-md-component="announce">
</div>
<div data-md-color-scheme="default" data-md-component="outdated" hidden>
</div>
<header class="md-header md-header--shadow" data-md-component="header">
<nav class="md-header__inner md-grid" aria-label="Header">
<a href=".." title="Freqtrade" class="md-header__button md-logo" aria-label="Freqtrade" data-md-component="logo">
<img src="../images/logo.png" alt="logo">
</a>
<label class="md-header__button md-icon" for="__drawer">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2Z"/></svg>
</label>
<div class="md-header__title" data-md-component="header-title">
<div class="md-header__ellipsis">
<div class="md-header__topic">
<span class="md-ellipsis">
Freqtrade
</span>
</div>
<div class="md-header__topic" data-md-component="header-topic">
<span class="md-ellipsis">
Producer/Consumer mode
</span>
</div>
</div>
</div>
<form class="md-header__option" data-md-component="palette">
<input class="md-option" data-md-color-media="" data-md-color-scheme="default" data-md-color-primary="blue-grey" data-md-color-accent="tear" aria-label="Switch to dark mode" type="radio" name="__palette" id="__palette_1">
<label class="md-header__button md-icon" title="Switch to dark mode" for="__palette_2" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 6H7c-3.31 0-6 2.69-6 6s2.69 6 6 6h10c3.31 0 6-2.69 6-6s-2.69-6-6-6zm0 10H7c-2.21 0-4-1.79-4-4s1.79-4 4-4h10c2.21 0 4 1.79 4 4s-1.79 4-4 4zM7 9c-1.66 0-3 1.34-3 3s1.34 3 3 3 3-1.34 3-3-1.34-3-3-3z"/></svg>
</label>
<input class="md-option" data-md-color-media="" data-md-color-scheme="slate" data-md-color-primary="blue-grey" data-md-color-accent="tear" aria-label="Switch to light mode" type="radio" name="__palette" id="__palette_2">
<label class="md-header__button md-icon" title="Switch to light mode" for="__palette_1" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 7H7a5 5 0 0 0-5 5 5 5 0 0 0 5 5h10a5 5 0 0 0 5-5 5 5 0 0 0-5-5m0 8a3 3 0 0 1-3-3 3 3 0 0 1 3-3 3 3 0 0 1 3 3 3 3 0 0 1-3 3Z"/></svg>
</label>
</form>
<label class="md-header__button md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
</label>
<div class="md-search" data-md-component="search" role="dialog">
<label class="md-search__overlay" for="__search"></label>
<div class="md-search__inner" role="search">
<form class="md-search__form" name="search">
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
<label class="md-search__icon md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
</label>
<nav class="md-search__options" aria-label="Search">
<a href="javascript:void(0)" class="md-search__icon md-icon" title="Share" aria-label="Share" data-clipboard data-clipboard-text="" data-md-component="search-share" tabindex="-1">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7 0-.24-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9a3 3 0 0 0-3 3 3 3 0 0 0 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.15c-.05.21-.08.43-.08.66 0 1.61 1.31 2.91 2.92 2.91 1.61 0 2.92-1.3 2.92-2.91A2.92 2.92 0 0 0 18 16.08Z"/></svg>
</a>
<button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41Z"/></svg>
</button>
</nav>
</form>
<div class="md-search__output">
<div class="md-search__scrollwrap" data-md-scrollfix>
<div class="md-search-result" data-md-component="search-result">
<div class="md-search-result__meta">
Initializing search
</div>
<ol class="md-search-result__list" role="presentation"></ol>
</div>
</div>
</div>
</div>
</div>
<div class="md-header__source">
<a href="https://github.com/freqtrade/freqtrade" title="Go to repository" class="md-source" data-md-component="source">
<div class="md-source__icon md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.4.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81z"/></svg>
</div>
<div class="md-source__repository">
GitHub
</div>
</a>
</div>
</nav>
</header>
<div class="md-container" data-md-component="container">
<main class="md-main" data-md-component="main">
<div class="md-main__inner md-grid">
<!-- Main navigation -->
<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
<label class="md-nav__title" for="__drawer">
<a href=".." title="Freqtrade" class="md-nav__button md-logo" aria-label="Freqtrade" data-md-component="logo">
<img src="../images/logo.png" alt="logo">
</a>
Freqtrade
</label>
<div class="md-nav__source">
<a href="https://github.com/freqtrade/freqtrade" title="Go to repository" class="md-source" data-md-component="source">
<div class="md-source__icon md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.4.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81z"/></svg>
</div>
<div class="md-source__repository">
GitHub
</div>
</a>
</div>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href=".." class="md-nav__link">
<span class="md-ellipsis">
Home
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../docker_quickstart/" class="md-nav__link">
<span class="md-ellipsis">
Quickstart with Docker
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" >
<label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="0">
<span class="md-ellipsis">
Installation
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3">
<span class="md-nav__icon md-icon"></span>
Installation
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../installation/" class="md-nav__link">
<span class="md-ellipsis">
Linux/MacOS/Raspberry
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../windows_installation/" class="md-nav__link">
<span class="md-ellipsis">
Windows
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../bot-basics/" class="md-nav__link">
<span class="md-ellipsis">
Freqtrade Basics
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../configuration/" class="md-nav__link">
<span class="md-ellipsis">
Configuration
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../strategy-customization/" class="md-nav__link">
<span class="md-ellipsis">
Strategy Customization
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../strategy-callbacks/" class="md-nav__link">
<span class="md-ellipsis">
Strategy Callbacks
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../stoploss/" class="md-nav__link">
<span class="md-ellipsis">
Stoploss
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../plugins/" class="md-nav__link">
<span class="md-ellipsis">
Plugins
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../bot-usage/" class="md-nav__link">
<span class="md-ellipsis">
Start the bot
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_11" >
<label class="md-nav__link" for="__nav_11" id="__nav_11_label" tabindex="0">
<span class="md-ellipsis">
Control the bot
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_11_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_11">
<span class="md-nav__icon md-icon"></span>
Control the bot
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../telegram-usage/" class="md-nav__link">
<span class="md-ellipsis">
Telegram
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../rest-api/" class="md-nav__link">
<span class="md-ellipsis">
REST API & FreqUI
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../webhook-config/" class="md-nav__link">
<span class="md-ellipsis">
Web Hook
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../data-download/" class="md-nav__link">
<span class="md-ellipsis">
Data Downloading
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../backtesting/" class="md-nav__link">
<span class="md-ellipsis">
Backtesting
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../hyperopt/" class="md-nav__link">
<span class="md-ellipsis">
Hyperopt
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_15" >
<label class="md-nav__link" for="__nav_15" id="__nav_15_label" tabindex="0">
<span class="md-ellipsis">
FreqAI
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_15_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_15">
<span class="md-nav__icon md-icon"></span>
FreqAI
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../freqai/" class="md-nav__link">
<span class="md-ellipsis">
Introduction
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../freqai-configuration/" class="md-nav__link">
<span class="md-ellipsis">
Configuration
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../freqai-parameter-table/" class="md-nav__link">
<span class="md-ellipsis">
Parameter table
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../freqai-feature-engineering/" class="md-nav__link">
<span class="md-ellipsis">
Feature engineering
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../freqai-running/" class="md-nav__link">
<span class="md-ellipsis">
Running FreqAI
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../freqai-reinforcement-learning/" class="md-nav__link">
<span class="md-ellipsis">
Reinforcement Learning
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../freqai-developers/" class="md-nav__link">
<span class="md-ellipsis">
Developer guide
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../leverage/" class="md-nav__link">
<span class="md-ellipsis">
Short / Leverage
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../utils/" class="md-nav__link">
<span class="md-ellipsis">
Utility Sub-commands
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../plotting/" class="md-nav__link">
<span class="md-ellipsis">
Plotting
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../exchanges/" class="md-nav__link">
<span class="md-ellipsis">
Exchange-specific Notes
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_20" >
<label class="md-nav__link" for="__nav_20" id="__nav_20_label" tabindex="0">
<span class="md-ellipsis">
Data Analysis
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_20_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_20">
<span class="md-nav__icon md-icon"></span>
Data Analysis
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../data-analysis/" class="md-nav__link">
<span class="md-ellipsis">
Jupyter Notebooks
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../strategy_analysis_example/" class="md-nav__link">
<span class="md-ellipsis">
Strategy analysis
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../advanced-backtesting/" class="md-nav__link">
<span class="md-ellipsis">
Backtest analysis
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_21" checked>
<label class="md-nav__link" for="__nav_21" id="__nav_21_label" tabindex="0">
<span class="md-ellipsis">
Advanced Topics
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_21_label" aria-expanded="true">
<label class="md-nav__title" for="__nav_21">
<span class="md-nav__icon md-icon"></span>
Advanced Topics
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../advanced-setup/" class="md-nav__link">
<span class="md-ellipsis">
Advanced Post-installation Tasks
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../trade-object/" class="md-nav__link">
<span class="md-ellipsis">
Trade Object
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../lookahead-analysis/" class="md-nav__link">
<span class="md-ellipsis">
Lookahead analysis
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../recursive-analysis/" class="md-nav__link">
<span class="md-ellipsis">
Recursive analysis
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../strategy-advanced/" class="md-nav__link">
<span class="md-ellipsis">
Advanced Strategy
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../advanced-hyperopt/" class="md-nav__link">
<span class="md-ellipsis">
Advanced Hyperopt
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--active">
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
<label class="md-nav__link md-nav__link--active" for="__toc">
<span class="md-ellipsis">
Producer/Consumer mode
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<a href="./" class="md-nav__link md-nav__link--active">
<span class="md-ellipsis">
Producer/Consumer mode
</span>
</a>
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#configuration" class="md-nav__link">
Configuration
</a>
</li>
<li class="md-nav__item">
<a href="#examples" class="md-nav__link">
Examples
</a>
<nav class="md-nav" aria-label="Examples">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#example-producer-strategy" class="md-nav__link">
Example - Producer Strategy
</a>
</li>
<li class="md-nav__item">
<a href="#example-consumer-strategy" class="md-nav__link">
Example - Consumer Strategy
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../edge/" class="md-nav__link">
<span class="md-ellipsis">
Edge Positioning
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../faq/" class="md-nav__link">
<span class="md-ellipsis">
FAQ
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../sql_cheatsheet/" class="md-nav__link">
<span class="md-ellipsis">
SQL Cheat-sheet
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../strategy_migration/" class="md-nav__link">
<span class="md-ellipsis">
Strategy migration
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../updating/" class="md-nav__link">
<span class="md-ellipsis">
Updating Freqtrade
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../deprecated/" class="md-nav__link">
<span class="md-ellipsis">
Deprecated Features
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../developer/" class="md-nav__link">
<span class="md-ellipsis">
Contributors Guide
</span>
</a>
</li>
</ul>
</nav>
</div>
</div>
</div>
<!-- Table of contents -->
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#configuration" class="md-nav__link">
Configuration
</a>
</li>
<li class="md-nav__item">
<a href="#examples" class="md-nav__link">
Examples
</a>
<nav class="md-nav" aria-label="Examples">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#example-producer-strategy" class="md-nav__link">
Example - Producer Strategy
</a>
</li>
<li class="md-nav__item">
<a href="#example-consumer-strategy" class="md-nav__link">
Example - Consumer Strategy
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-content" data-md-component="content">
<article class="md-content__inner md-typeset">
<h1 id="producer-consumer-mode">Producer / Consumer mode<a class="headerlink" href="#producer-consumer-mode" title="Permanent link">&para;</a></h1>
<p>freqtrade provides a mechanism whereby an instance (also called <code>consumer</code>) may listen to messages from an upstream freqtrade instance (also called <code>producer</code>) using the message websocket. Mainly, <code>analyzed_df</code> and <code>whitelist</code> messages. This allows the reuse of computed indicators (and signals) for pairs in multiple bots without needing to compute them multiple times.</p>
<p>See <a href="../rest-api/#message-websocket">Message Websocket</a> in the Rest API docs for setting up the <code>api_server</code> configuration for your message websocket (this will be your producer).</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>We strongly recommend to set <code>ws_token</code> to something random and known only to yourself to avoid unauthorized access to your bot.</p>
</div>
<h2 id="configuration">Configuration<a class="headerlink" href="#configuration" title="Permanent link">&para;</a></h2>
<p>Enable subscribing to an instance by adding the <code>external_message_consumer</code> section to the consumer's config file.</p>
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="c1">//...</span>
<span class="w"> </span><span class="nt">&quot;external_message_consumer&quot;</span><span class="p">:</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;enabled&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span>
<span class="w"> </span><span class="nt">&quot;producers&quot;</span><span class="p">:</span><span class="w"> </span><span class="p">[</span>
<span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;name&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;default&quot;</span><span class="p">,</span><span class="w"> </span><span class="c1">// This can be any name you&#39;d like, default is &quot;default&quot;</span>
<span class="w"> </span><span class="nt">&quot;host&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;127.0.0.1&quot;</span><span class="p">,</span><span class="w"> </span><span class="c1">// The host from your producer&#39;s api_server config</span>
<span class="w"> </span><span class="nt">&quot;port&quot;</span><span class="p">:</span><span class="w"> </span><span class="mi">8080</span><span class="p">,</span><span class="w"> </span><span class="c1">// The port from your producer&#39;s api_server config</span>
<span class="w"> </span><span class="nt">&quot;secure&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w"> </span><span class="c1">// Use a secure websockets connection, default false</span>
<span class="w"> </span><span class="nt">&quot;ws_token&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;sercet_Ws_t0ken&quot;</span><span class="w"> </span><span class="c1">// The ws_token from your producer&#39;s api_server config</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="p">],</span>
<span class="w"> </span><span class="c1">// The following configurations are optional, and usually not required</span>
<span class="w"> </span><span class="c1">// &quot;wait_timeout&quot;: 300,</span>
<span class="w"> </span><span class="c1">// &quot;ping_timeout&quot;: 10,</span>
<span class="w"> </span><span class="c1">// &quot;sleep_time&quot;: 10,</span>
<span class="w"> </span><span class="c1">// &quot;remove_entry_exit_signals&quot;: false,</span>
<span class="w"> </span><span class="c1">// &quot;message_size_limit&quot;: 8</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="c1">//...</span>
<span class="p">}</span>
</code></pre></div>
<table>
<thead>
<tr>
<th>Parameter</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>enabled</code></td>
<td><strong>Required.</strong> Enable consumer mode. If set to false, all other settings in this section are ignored.<br><em>Defaults to <code>false</code>.</em><br> <strong>Datatype:</strong> boolean .</td>
</tr>
<tr>
<td><code>producers</code></td>
<td><strong>Required.</strong> List of producers <br> <strong>Datatype:</strong> Array.</td>
</tr>
<tr>
<td><code>producers.name</code></td>
<td><strong>Required.</strong> Name of this producer. This name must be used in calls to <code>get_producer_pairs()</code> and <code>get_producer_df()</code> if more than one producer is used.<br> <strong>Datatype:</strong> string</td>
</tr>
<tr>
<td><code>producers.host</code></td>
<td><strong>Required.</strong> The hostname or IP address from your producer.<br> <strong>Datatype:</strong> string</td>
</tr>
<tr>
<td><code>producers.port</code></td>
<td><strong>Required.</strong> The port matching the above host.<br><em>Defaults to <code>8080</code>.</em><br> <strong>Datatype:</strong> Integer</td>
</tr>
<tr>
<td><code>producers.secure</code></td>
<td><strong>Optional.</strong> Use ssl in websockets connection. Default False.<br> <strong>Datatype:</strong> string</td>
</tr>
<tr>
<td><code>producers.ws_token</code></td>
<td><strong>Required.</strong> <code>ws_token</code> as configured on the producer.<br> <strong>Datatype:</strong> string</td>
</tr>
<tr>
<td></td>
<td><strong>Optional settings</strong></td>
</tr>
<tr>
<td><code>wait_timeout</code></td>
<td>Timeout until we ping again if no message is received. <br><em>Defaults to <code>300</code>.</em><br> <strong>Datatype:</strong> Integer - in seconds.</td>
</tr>
<tr>
<td><code>ping_timeout</code></td>
<td>Ping timeout <br><em>Defaults to <code>10</code>.</em><br> <strong>Datatype:</strong> Integer - in seconds.</td>
</tr>
<tr>
<td><code>sleep_time</code></td>
<td>Sleep time before retrying to connect.<br><em>Defaults to <code>10</code>.</em><br> <strong>Datatype:</strong> Integer - in seconds.</td>
</tr>
<tr>
<td><code>remove_entry_exit_signals</code></td>
<td>Remove signal columns from the dataframe (set them to 0) on dataframe receipt.<br><em>Defaults to <code>false</code>.</em><br> <strong>Datatype:</strong> Boolean.</td>
</tr>
<tr>
<td><code>message_size_limit</code></td>
<td>Size limit per message<br><em>Defaults to <code>8</code>.</em><br> <strong>Datatype:</strong> Integer - Megabytes.</td>
</tr>
</tbody>
</table>
<p>Instead of (or as well as) calculating indicators in <code>populate_indicators()</code> the follower instance listens on the connection to a producer instance's messages (or multiple producer instances in advanced configurations) and requests the producer's most recently analyzed dataframes for each pair in the active whitelist.</p>
<p>A consumer instance will then have a full copy of the analyzed dataframes without the need to calculate them itself.</p>
<h2 id="examples">Examples<a class="headerlink" href="#examples" title="Permanent link">&para;</a></h2>
<h3 id="example-producer-strategy">Example - Producer Strategy<a class="headerlink" href="#example-producer-strategy" title="Permanent link">&para;</a></h3>
<p>A simple strategy with multiple indicators. No special considerations are required in the strategy itself.</p>
<div class="highlight"><pre><span></span><code><span class="k">class</span> <span class="nc">ProducerStrategy</span><span class="p">(</span><span class="n">IStrategy</span><span class="p">):</span>
<span class="c1">#...</span>
<span class="k">def</span> <span class="nf">populate_indicators</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dataframe</span><span class="p">:</span> <span class="n">DataFrame</span><span class="p">,</span> <span class="n">metadata</span><span class="p">:</span> <span class="nb">dict</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">DataFrame</span><span class="p">:</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Calculate indicators in the standard freqtrade way which can then be broadcast to other instances</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;rsi&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">ta</span><span class="o">.</span><span class="n">RSI</span><span class="p">(</span><span class="n">dataframe</span><span class="p">)</span>
<span class="n">bollinger</span> <span class="o">=</span> <span class="n">qtpylib</span><span class="o">.</span><span class="n">bollinger_bands</span><span class="p">(</span><span class="n">qtpylib</span><span class="o">.</span><span class="n">typical_price</span><span class="p">(</span><span class="n">dataframe</span><span class="p">),</span> <span class="n">window</span><span class="o">=</span><span class="mi">20</span><span class="p">,</span> <span class="n">stds</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;bb_lowerband&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">bollinger</span><span class="p">[</span><span class="s1">&#39;lower&#39;</span><span class="p">]</span>
<span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;bb_middleband&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">bollinger</span><span class="p">[</span><span class="s1">&#39;mid&#39;</span><span class="p">]</span>
<span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;bb_upperband&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">bollinger</span><span class="p">[</span><span class="s1">&#39;upper&#39;</span><span class="p">]</span>
<span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;tema&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">ta</span><span class="o">.</span><span class="n">TEMA</span><span class="p">(</span><span class="n">dataframe</span><span class="p">,</span> <span class="n">timeperiod</span><span class="o">=</span><span class="mi">9</span><span class="p">)</span>
<span class="k">return</span> <span class="n">dataframe</span>
<span class="k">def</span> <span class="nf">populate_entry_trend</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dataframe</span><span class="p">:</span> <span class="n">DataFrame</span><span class="p">,</span> <span class="n">metadata</span><span class="p">:</span> <span class="nb">dict</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">DataFrame</span><span class="p">:</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Populates the entry signal for the given dataframe</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">dataframe</span><span class="o">.</span><span class="n">loc</span><span class="p">[</span>
<span class="p">(</span>
<span class="p">(</span><span class="n">qtpylib</span><span class="o">.</span><span class="n">crossed_above</span><span class="p">(</span><span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;rsi&#39;</span><span class="p">],</span> <span class="bp">self</span><span class="o">.</span><span class="n">buy_rsi</span><span class="o">.</span><span class="n">value</span><span class="p">))</span> <span class="o">&amp;</span>
<span class="p">(</span><span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;tema&#39;</span><span class="p">]</span> <span class="o">&lt;=</span> <span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;bb_middleband&#39;</span><span class="p">])</span> <span class="o">&amp;</span>
<span class="p">(</span><span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;tema&#39;</span><span class="p">]</span> <span class="o">&gt;</span> <span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;tema&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">shift</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span> <span class="o">&amp;</span>
<span class="p">(</span><span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;volume&#39;</span><span class="p">]</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">)</span>
<span class="p">),</span>
<span class="s1">&#39;enter_long&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">return</span> <span class="n">dataframe</span>
</code></pre></div>
<div class="admonition tip">
<p class="admonition-title">FreqAI</p>
<p>You can use this to setup <a href="../freqai/">FreqAI</a> on a powerful machine, while you run consumers on simple machines like raspberries, which can interpret the signals generated from the producer in different ways.</p>
</div>
<h3 id="example-consumer-strategy">Example - Consumer Strategy<a class="headerlink" href="#example-consumer-strategy" title="Permanent link">&para;</a></h3>
<p>A logically equivalent strategy which calculates no indicators itself, but will have the same analyzed dataframes available to make trading decisions based on the indicators calculated in the producer. In this example the consumer has the same entry criteria, however this is not necessary. The consumer may use different logic to enter/exit trades, and only use the indicators as specified.</p>
<div class="highlight"><pre><span></span><code><span class="k">class</span> <span class="nc">ConsumerStrategy</span><span class="p">(</span><span class="n">IStrategy</span><span class="p">):</span>
<span class="c1">#...</span>
<span class="n">process_only_new_candles</span> <span class="o">=</span> <span class="kc">False</span> <span class="c1"># required for consumers</span>
<span class="n">_columns_to_expect</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;rsi_default&#39;</span><span class="p">,</span> <span class="s1">&#39;tema_default&#39;</span><span class="p">,</span> <span class="s1">&#39;bb_middleband_default&#39;</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">populate_indicators</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dataframe</span><span class="p">:</span> <span class="n">DataFrame</span><span class="p">,</span> <span class="n">metadata</span><span class="p">:</span> <span class="nb">dict</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">DataFrame</span><span class="p">:</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Use the websocket api to get pre-populated indicators from another freqtrade instance.</span>
<span class="sd"> Use `self.dp.get_producer_df(pair)` to get the dataframe</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">pair</span> <span class="o">=</span> <span class="n">metadata</span><span class="p">[</span><span class="s1">&#39;pair&#39;</span><span class="p">]</span>
<span class="n">timeframe</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">timeframe</span>
<span class="n">producer_pairs</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dp</span><span class="o">.</span><span class="n">get_producer_pairs</span><span class="p">()</span>
<span class="c1"># You can specify which producer to get pairs from via:</span>
<span class="c1"># self.dp.get_producer_pairs(&quot;my_other_producer&quot;)</span>
<span class="c1"># This func returns the analyzed dataframe, and when it was analyzed</span>
<span class="n">producer_dataframe</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dp</span><span class="o">.</span><span class="n">get_producer_df</span><span class="p">(</span><span class="n">pair</span><span class="p">)</span>
<span class="c1"># You can get other data if the producer makes it available:</span>
<span class="c1"># self.dp.get_producer_df(</span>
<span class="c1"># pair,</span>
<span class="c1"># timeframe=&quot;1h&quot;,</span>
<span class="c1"># candle_type=CandleType.SPOT,</span>
<span class="c1"># producer_name=&quot;my_other_producer&quot;</span>
<span class="c1"># )</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">producer_dataframe</span><span class="o">.</span><span class="n">empty</span><span class="p">:</span>
<span class="c1"># If you plan on passing the producer&#39;s entry/exit signal directly,</span>
<span class="c1"># specify ffill=False or it will have unintended results</span>
<span class="n">merged_dataframe</span> <span class="o">=</span> <span class="n">merge_informative_pair</span><span class="p">(</span><span class="n">dataframe</span><span class="p">,</span> <span class="n">producer_dataframe</span><span class="p">,</span>
<span class="n">timeframe</span><span class="p">,</span> <span class="n">timeframe</span><span class="p">,</span>
<span class="n">append_timeframe</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
<span class="n">suffix</span><span class="o">=</span><span class="s2">&quot;default&quot;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">merged_dataframe</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">dataframe</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_columns_to_expect</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">return</span> <span class="n">dataframe</span>
<span class="k">def</span> <span class="nf">populate_entry_trend</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dataframe</span><span class="p">:</span> <span class="n">DataFrame</span><span class="p">,</span> <span class="n">metadata</span><span class="p">:</span> <span class="nb">dict</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">DataFrame</span><span class="p">:</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Populates the entry signal for the given dataframe</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="c1"># Use the dataframe columns as if we calculated them ourselves</span>
<span class="n">dataframe</span><span class="o">.</span><span class="n">loc</span><span class="p">[</span>
<span class="p">(</span>
<span class="p">(</span><span class="n">qtpylib</span><span class="o">.</span><span class="n">crossed_above</span><span class="p">(</span><span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;rsi_default&#39;</span><span class="p">],</span> <span class="bp">self</span><span class="o">.</span><span class="n">buy_rsi</span><span class="o">.</span><span class="n">value</span><span class="p">))</span> <span class="o">&amp;</span>
<span class="p">(</span><span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;tema_default&#39;</span><span class="p">]</span> <span class="o">&lt;=</span> <span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;bb_middleband_default&#39;</span><span class="p">])</span> <span class="o">&amp;</span>
<span class="p">(</span><span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;tema_default&#39;</span><span class="p">]</span> <span class="o">&gt;</span> <span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;tema_default&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">shift</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span> <span class="o">&amp;</span>
<span class="p">(</span><span class="n">dataframe</span><span class="p">[</span><span class="s1">&#39;volume&#39;</span><span class="p">]</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">)</span>
<span class="p">),</span>
<span class="s1">&#39;enter_long&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">return</span> <span class="n">dataframe</span>
</code></pre></div>
<div class="admonition tip">
<p class="admonition-title">Using upstream signals</p>
<p>By setting <code>remove_entry_exit_signals=false</code>, you can also use the producer's signals directly. They should be available as <code>enter_long_default</code> (assuming <code>suffix="default"</code> was used) - and can be used as either signal directly, or as additional indicator.</p>
</div>
</article>
</div>
</div>
<button type="button" class="md-top md-icon" data-md-component="top" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8v12Z"/></svg>
Back to top
</button>
</main>
<footer class="md-footer">
<nav class="md-footer__inner md-grid" aria-label="Footer" >
<a href="../advanced-hyperopt/" class="md-footer__link md-footer__link--prev" aria-label="Previous: Advanced Hyperopt">
<div class="md-footer__button md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
</div>
<div class="md-footer__title">
<span class="md-footer__direction">
Previous
</span>
<div class="md-ellipsis">
Advanced Hyperopt
</div>
</div>
</a>
<a href="../edge/" class="md-footer__link md-footer__link--next" aria-label="Next: Edge Positioning">
<div class="md-footer__title">
<span class="md-footer__direction">
Next
</span>
<div class="md-ellipsis">
Edge Positioning
</div>
</div>
<div class="md-footer__button md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4Z"/></svg>
</div>
</a>
</nav>
<div class="md-footer-meta md-typeset">
<div class="md-footer-meta__inner md-grid">
<div class="md-copyright">
Made with
<a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
Material for MkDocs
</a>
</div>
</div>
</div>
</footer>
<!-- Place this tag in your head or just before your close body tag. -->
<script async defer src="https://buttons.github.io/buttons.js"></script>
<script src="https://code.jquery.com/jquery-3.4.1.min.js"
integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
</div>
<div class="md-dialog" data-md-component="dialog">
<div class="md-dialog__inner md-typeset"></div>
</div>
<script id="__config" type="application/json">{"base": "..", "features": ["content.code.annotate", "search.share", "content.code.copy", "navigation.top", "navigation.footer"], "search": "../assets/javascripts/workers/search.f886a092.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}, "version": {"provider": "mike"}}</script>
<script src="../assets/javascripts/bundle.aecac24b.min.js"></script>
<script src="../javascripts/config.js"></script>
<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
</body>
</html>
Reference in New Issue Copy Permalink