MongoDB : (InsertOne) If key not available in json

Def

CODE
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from flask import Flask
from flask import jsonify
from flask import request
from flask_pymongo import PyMongo
from bson.json_util import dumps

app = Flask(__name__)

app.config['MONGO_DBNAME'] = 'esawal'
app.config['MONGO_URI'] = 'mongodb://localhost:27017/esawal'

mongo = PyMongo(app)


@app.route('/', methods=['POST'])
def add_star():
    try:
        myDB = mongo.db["customers"]

        try:
            if not request.json['name']:
                return jsonify({'responseCoe': 400, 'message': 'Name is Empty'})
        except KeyError:
            return jsonify({'responseCoe': 400, 'message': 'Name not found'})

        try:
            if not request.json['address']:
                return jsonify({'responseCode': 400, 'message': 'Address is Empty'})
        except KeyError:
            return jsonify({'responseCoe': 400, 'message': 'Address not found'})

        name = request.json['name']
        address = request.json['address']
        star_id = myDB.insert_one({'name': name, 'address': address})

        output = []
        for s in myDB.find():
            output.append({'name': name, 'address': address})
        return jsonify({'result': output})
    except Exception:
        return dumps({'error': "400"})


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

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REQUEST & RESPONSE
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