Displaying Records from MongoDB using Flask
Flask is a popular Python web framework that is used to create web applications. MongoDB is a NoSQL database that stores data in the form of documents. In this article, we will discuss how to display records from MongoDB using Flask.
Setting up Flask and MongoDB
Before we can display records from MongoDB in a Flask application, we need to set up both Flask and MongoDB. Make sure you have Flask and pymongo installed in your Python environment. You will also need to have MongoDB installed on your local machine or use a cloud-based service like MongoDB Atlas.
Connecting to MongoDB
First, we need to establish a connection to MongoDB using pymongo. We will create a MongoClient object and specify the connection details like the host and port number of the MongoDB server.
from pymongo import MongoClient
client = MongoClient('mongodb://localhost:27017/')
db = client['mydatabase']
collection = db['mycollection']
Displaying Records in Flask
Now that we have connected to MongoDB, we can retrieve records from a collection and display them in a Flask application. We will create a route in Flask that fetches the records from the MongoDB collection and renders them in an HTML template.
from flask import Flask, render_template
app = Flask(__name__)
@app.route('/')
def display_records():
records = collection.find()
return render_template('index.html', records=records)
if __name__ == '__main__':
app.run()
Creating an HTML template
Finally, we need to create an HTML template that will display the records retrieved from MongoDB. We will use Jinja2 templating engine to render the records in the template.
Records from MongoDB
-
{% for record in records %}
- {{ record }}
{% endfor %}
Conclusion
In this article, we have learned how to display records from MongoDB in a Flask application. By connecting to MongoDB, fetching records, and rendering them in an HTML template, we can create dynamic web applications that interact with a NoSQL database. Try implementing this in your own Flask project and see the results!
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