Cedric-M/Weather-Atlas

Getting started with MongoDB Atlas

https://www.mongodb.com/cloud/atlas

python3 -m pip install pymongo

from pymongo import MongoClient

client = MongoClient("mongodb://test:test@clusteraws1-shard-00-00-pecbe.mongodb.net:27017,clusteraws1-shard-00-01-pecbe.mongodb.net:27017,clusteraws1-shard-00-02-pecbe.mongodb.net:27017/test?ssl=true&replicaSet=ClusterAWS1-shard-0&authSource=admin&retryWrites=true&w=majority")

To find the URI, go to: Your Cluster > Connect > Connect your application > Driver "Python" and version "3.4 or later".

db = client.get_database('weather_db')

records = db.weather_data

Count documents

records.count_documents({})

1

Create new document

new_weather = {
    'name': 'Toulouse',
    'temp': 32,
    'country': 'France'
}

records.insert_one(new_weather)

<pymongo.results.InsertOneResult at 0x7f45fac40af0>

new_weathers = [
    {
        'name': 'Marseille',
        'temp': 35,
        'country': 'France'
    },
    {
        'name': 'Pau',
        'temp': 12,
        'country': 'France'
    }
]

records.insert_many(new_weathers)

<pymongo.results.InsertManyResult at 0x7f45e8812690>

Find documents

list(records.find())

[{'_id': ObjectId('5df28f5e1c9d4400002690c8'),
  'name': 'Paris',
  'temp': 35,
  'country': 'France'},
 {'_id': ObjectId('5df7a20a4d0d42a9e3e84c4b'),
  'name': 'Toulouse',
  'temp': 32,
  'country': 'France'},
 {'_id': ObjectId('5df7a3094d0d42a9e3e84c4c'),
  'name': 'Marseille',
  'temp': 35,
  'country': 'France'},
 {'_id': ObjectId('5df7a3094d0d42a9e3e84c4d'),
  'name': 'Pau',
  'temp': 12,
  'country': 'France'}]

records.find_one({'temp': 12})

{'_id': ObjectId('5df7a3094d0d42a9e3e84c4d'),
 'name': 'Pau',
 'temp': 12,
 'country': 'France'}

Update documents

weather_updates = {
    'name': 'Lyon'
}

records.update_one({'temp': 32}, {'$set': weather_updates})

<pymongo.results.UpdateResult at 0x7f45ea312eb0>

Delete documents

records.delete_one({'temp': 12})

<pymongo.results.DeleteResult at 0x7f45e87e5b90>