Example Flask and Mongo

index.py

from flask import Flask
from pymongo import MongoClient
from bson.json_util import dumps
app = Flask(__name__)

db = MongoClient('mongodb://<dbuser>:<dbpass>@localhost:27017/mydb')['mydb']

@app.route('/')
def index():
    return 'Hello, World!'

@app.route('/contacts')
def contacts():
    return dumps(db.collection.find({}))

@app.route('/random')
def random():
    return dumps(db.collection.aggregate({ '$sample': { 'size': 1 } }))