CODEWITHSUNDEEP
pythonflaskjinja2
user3916
user3916

Reputation: 191

Flask reading Dict

I think I'm missing something with Flask. I want to read my dictionary which is a static file to a basic template and make it appear with Flask. Any idea why I'm getting an error? Thanks!

from flask import Flask, render_template
app = Flask(__name__)


@app.route('/')
def main():
    return render_template('main.html, switch=switchList')

if __name__ == '__main__':
    app.run(debug=True)

Here's my main.html

<body>
    {% block content %}
    
    {% for switch in switches %}
    Switch Name: {{ switch.name }} <br>
      - Serial: {{ switch.serial }} <br>
      - Reachable at: {{ switch.ip }} <br>
      <br>
    {% endfor %}
    
    {% endblock %}
</body>

here's the the dict database

switchList = [
        {
        "name": "C9200",
        "serial": "L3143S",
        "ip": "192.168.1.1",
        "check": True,
        "total": 28,
        "up": 10,
        "down": 5,
        "disabled": 13,
        "capacity": 35       
    },
    {
        "name": "C9300",
        "serial": "ASDSADA5",
        "ip": "172.168.44.2",
        "check": False,
        "total": 48,
        "up": 32,
        "down": 6,
        "disabled": 10,  
        "capacity": 67       
    },
]

Upvotes: 0

Views: 421

Answers (2)

Dave W. Smith
Dave W. Smith

Reputation: 24956

Assuming switchList holds the data you want to show, change

return render_template('main.html, switch=switchList')

to

return render_template('main.html', switch=switchList)

Upvotes: 1

Yaakov Bressler
Yaakov Bressler

Reputation: 12018

Jinja will render a python object into html. Your issue is that your dictionary isn't being loaded as a python object, thus it cannot be served to your page. Solution, load your dictionary and pass through your html template:

...

# Load your dict – be sure to enter the correct path
with open('static/switchList.json', 'r') as f:
    switchList = json.loads(f)

@app.route('/')
def main():
    return render_template('main.html', switch=switchList)

...

Upvotes: 1

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