我正在尝试使用flask-pymongo初始化我的数据库。
但是我收到以下错误消息,
文件“ run.py”,第22行,在
app = create_app(“ config”)
create_app中第11行的文件“ run.py”
mongo.init_app(app)
TypeError:init_app()缺少1个必需的位置参数:“ app”
run.py
from flask import Flask
from app import api_bp
from db import mongo
def create_app(config_filename):
app = Flask(__name__)
app.config.from_object(config_filename)
app.register_blueprint(api_bp, url_prefix='/api')
mongo.init_app(app)
return app
# def logger():
# def database():
if __name__ == "__main__":
app = create_app("config")
app.run(host='0.0.0.0', port=8080, debug=True)
db.py
from flask_pymongo import PyMongo
mongo = PyMongo
config.py
DEBUG = True
SECRET_KEY = "secret"
MONGO_URI = "mongodb://localhost:27017/api"
app / __ init __。py
import os
import json
import datetime
from flask import Blueprint
from flask import jsonify
from flask_restful import Api
from .users.resource import UsersResource
api_bp = Blueprint('api', __name__)
api = Api(api_bp)
api.add_resource(UsersResource, '/users')
app / users / resource.py
我希望他们将mongo导入此资源,以便我可以访问用户集合。
from flask_restful import Resource
from flask import jsonify
from .repository import UsersRepository
class UsersResource(Resource):
def __init__(self):
self.repository = UsersRepository()
def get(self):
data = {"Users": "Resource"}
res = data, 200
return res
我正在尝试使用Flask-restful和flask-pymongo用资源设置一个Restful api。欢迎提出其他改进我的方法的建议。
答案 0 :(得分:1)
您没有在db.py中实例化PyMongo类。
mongo = PyMongo()
答案 1 :(得分:0)
您应使用this之类的flask-pymongo:
from flask import Flask
from flask_pymongo import PyMongo
app = Flask(__name__)
app.config["MONGO_URI"] = "mongodb://localhost:27017/myDatabase"
mongo = PyMongo(app)
因此,在run.py中,您应该使用以下代码:
from flask import Flask
from app import api_bp
from db import mongo
def create_app(config_filename):
app = Flask(__name__)
app.config.from_object(config_filename)
app.register_blueprint(api_bp, url_prefix='/api')
# mongo.init_app(app) # remove this line
return app
# def logger():
# def database():
if __name__ == "__main__":
app = create_app("config")
py_mongo = mongo(app)
app.run(host='0.0.0.0', port=8080, debug=True)