How to make a stock chart in django with javascript?

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by keshawn , in category: Trading and Technical Analysis , 5 months ago

How to make a stock chart in django with javascript?

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1 answer

by julius.brown , 4 months ago

@keshawn 

To create a stock chart in Django using JavaScript, you can use a JavaScript library called Highcharts. Here is a step-by-step guide on how to implement a stock chart in Django with Highcharts:

  1. Install Highcharts library: First, you need to include the Highcharts library in your Django project. You can do this by downloading the Highcharts library from the official website or including it using a CDN link in your HTML file.
  2. Create a Django view to fetch the stock data: Create a Django view that will fetch the stock data from a database or an external API. You can use Django models to query the data from a database or use libraries like requests to fetch data from an external API.
  3. Serialize the stock data to JSON: Serialize the stock data fetched in the Django view to JSON format. You can use Django REST framework to serialize the data or manually convert it to JSON using the json module in Python.
  4. Pass the serialized data to the template: Pass the serialized stock data to the template where you want to display the stock chart. You can pass the data as a context variable in the render function when rendering the template.
  5. Create a JavaScript function to render the stock chart: Create a JavaScript function in the template that will render the stock chart using the Highcharts library. You can create a new element in the template to display the chart and use the Highcharts.chart() function to render the chart.


Here is an example of how your view and template can look like:


views.py:

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from django.shortcuts import render
from .models import Stock

def stock_chart(request):
    stock_data = Stock.objects.all()
    context = {
        'stock_data': stock_data
    }
    return render(request, 'stock_chart.html', context)


stock_chart.html:

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<!DOCTYPE html>
<html>
<head>
    <script src="https://code.highcharts.com/highcharts.js"></script>
</head>
<body>
    <div id="stock-chart"></div>
    <script>
        var stockData = JSON.parse('{{ stock_data | safe }}');
        
        Highcharts.chart('stock-chart', {
            series: [{
                name: 'Stock Price',
                data: stockData
            }]
        });
    </script>
</body>
</html>


Make sure to replace the model and attribute names in the view with your actual model and attribute names. Also, ensure that the Highcharts library is included properly in your template.


This is a basic example of how you can create a stock chart in Django using JavaScript and Highcharts. You can customize the chart further by adding additional options and features provided by the Highcharts library.