Flask和MongoDB（mLab）TypeError：ObjectId（'5bf0b6ce397b3635dc0b10ab'）不可序列化JSON

Question

我正在構建一個基於Flask的Web應用程序，並且在我的數據庫幫助器類中，我有一個create_user（）函數，如果該行顯示如下，則該函數可以正常工作：

users.insert({'user': email, 'password': hashpass})

但是，當我將其更改為：

users.insert({'email': email, 'password': hashpass})

我收到以下錯誤：

TypeError: ObjectId('5bf0b6ce397b3635dc0b10ab') is not JSON serializable

數據庫助手類

import bcrypt

class DBHelper:

def __init__(self, mongo):
    self.mongo = mongo

def create_user(self, email, password):
    users = self.mongo.db.users
    hashpass = bcrypt.hashpw(password.encode('utf-8'), bcrypt.gensalt())
    users.insert({'email': email, 'password': hashpass})

燒瓶代碼

@app.route("/account")
@login_required
def account():
    return render_template("home.html", options=options, questions=questions)
    return "You are logged in"


@app.route('/register', methods=['POST', 'GET'])
def register():
    if request.method == 'POST':
        stored_user = DB.get_user(request.form['email'])

        if stored_user is None:
            DB.create_user(request.form['email'], request.form['pass'])
            #session['username'] = request.form['username']
            user = User(DB.get_user(request.form['email']))
            login_user(user)
            return redirect(url_for('account'))

        return 'That username already exists!'

return render_template('register.html')

Answer 1

問題出在以下代碼上：

user = User(DB.get_user(request.form['email']))
login_user(user)

我正在將字典傳遞給User類，而不是電子郵件地址。