Binance offers a WebSocket API to get live candlestick updates and I would like to build my own live Bitcoin price ticker with it in the future. With a bit of extra logic to handle live updates, the candlestick chart class is going to come in handy for this. This example shows basic implementation of candlestick chart using OHLCSeries. This type of chart is used as a trading tool to visualize price movements. A candlestick figure can represent multiple recorded values, which are packed into 4 values .


However, when I finally did, I realized they are actually quite easy and straightforward to read. DataArray is an array of OHLC objects like previous or current. A JavaScript library for candlestick pattern detection. Now before you go into the example I would like to point some of the changes we made to make it work.


The candlestick chart is used in finance and is a way to represent open, high, low and close volumes per period. Complete this tutorial and you will be able to create a compelling interactive candlestick chart in JavaScript real quick, with ease. Is a well-crafted, easy-to-use financial charting package to track and visualize the stock price of any company over a specific period using charting and range tools.

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First, you will need to import the Momentjs library in the HTML part of the code. You can see our example below that already has changes included from the Highcharts JSfiddle code to make it work. Add() can be called with a single XOHLC-object or with an array of them. Apache ECharts is an Open Source JavaScript Visualization Library.

JavaScript Candlestick Chart

I need a javascript charting library that will fit my needs as I will elaborate. I need to be able to create multi series candlestick charts stacked ontop of volume bars, and I also need to be draw pictures on top of the data points. And I need to be able to have a range slider at the bottom to look at old datapoints.

If the closing price is above the opening price, i.e. the price has increased, the candle will be green, if the price has fallen, the candle will be red. Create the HTML page where the chart will be displayed. You are welcome to contribute to this library creating new issues or pull requests. Then you will call our Timeseries API URL as shown below.

Simple Candlestick Chart

Whether you need to enhance your website with better reporting, embed dashboards into your on-premises and SaaS systems, or build an entire new product, AnyChart covers all your data visualization needs. Our products include massive out-of-the-box capabilities, combined with the flexibility and the simplicity. Specifies which data source field provides open values for points of a financial series. Specifies which data source field provides low values for points of a financial series. Declared in commonSeriesSettings, the label settings apply to all point labels in the chart. Declared in a series configuration object, the label settings apply only to the point labels that belong to this particular series.


The main candlestick draw function, full code below.Because candlestick charts over longer time periods can encompass big price ranges, it’s nice to get additional details by hovering over the chart. When you move the mouse a crosshair follows its positions and highlights the exact time and price value at the edges. It also snaps to the candles on the time axis and the hovered candle changes its color. Finally, a small popup with the exact opening, closing, high, and low price of the hovered candle appears next to it. So I started trying to use canvasJS, but I couldn’t find a way to have both a multi series candlestick data and volume bars underneath complete with there own separate y axis labels. So I created two charts and put them underneath each other.


This makes it useful for dynamically displaying data from longer intervals as well as shorter. How to graph D3.js-based candlestick charts in javascript. A JavaScript chart library that renders candlestick charts with technical indicators to describe price movements/trends of a security, derivative, or currency. AnyChart is a flexible JavaScript based solution that allows developers to embed interactive and great looking charts and dashboards into any web, standalone or mobile project.


In this case, specify the tagField property in the commonSeriesSettings object. If a series must have a unique tagField value, specify the same property, but do so in the series object within the series array. If the number of points in a series increases over time, there comes a time when it becomes so massive that displaying labels for them makes the chart too cluttered. In this instance, to keep the chart clear to the viewer, specify a limit for the number of point labels using the maxLabelCount property.

Step-4: Customizing horizontal bar chart

Luckily, there are a lot of APIs you can use to get live and historic candlestick data. I am using the Binance API for this, but there are a lot of other API options for cryptocurrencies and stocks out there. Declared in commonSeriesSettings, selectionStyle applies to all series in the chart.

In this case, assign the name of this to the argumentField property of the commonSeriesSettings object. If a series must have a unique argument field, specify the same property, but do so in the series object within the series array. Specifies settings for all series of the candlestick type. A fun project to detect patterns in financial charts and add custom conditional logic for the patterns for trading.

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The javascript candlestick chart-specific label settings override the common ones. Specifies which data source field provides high values for points of a financial series. Specifies which data source field provides close values for points of a financial series. I love all kinds of data, diagrams, and charts, so having my own candlestick chart solution is going to be beneficial for future projects. JQuery plugin for creating line, bar and candlestick charts. This is an example of Javascript Chart Candlestick series.

The series-specific hoverStyle overrides the common one. When there are multiple value axes in a chart, series need to know exactly which axis they are bound to. By default, all of them are bound to the first axis in the valueAxis array. To bind a series to another axis, assign the name of the axis to the axis series property. Commonly, when a chart contains several series, many of them have the same argument field.

Once this limit is exceeded, all point labels of the series will be hidden. Specifies a filling color for the body of a series point that visualizes a non-reduced value. Each point in a financial series has one argument and four values. Arguments are provided by the argumentField; values are provided by the openValueField, closeValueField, highValueField and lowValueField.

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