Flask REST API 记录发送者的 IP 地址

Question

我使用 Flask、SQLAlchemy 和 Marshmallow 创建了一个最小的 REST API。这是app.py文件：

from flask import Flask, request, jsonify
from flask_sqlalchemy import SQLAlchemy
from flask_marshmallow import Marshmallow
import os

# Initialize App
app = Flask(__name__)
basedir = os.path.abspath(os.path.dirname(__file__))

# Database Setup
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(basedir, 'db.sqlite')
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
# Init db
db = SQLAlchemy(app)
# Init marshmallow
ma = Marshmallow(app)


# Product Class/Model
class Product(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(100), unique=True)
    description = db.Column(db.String(200))
    price = db.Column(db.Float)
    qty = db.Column(db.Integer)

    def __init__(self, name, description, price, qty):
        self.name = name
        self.description = description
        self.price = price
        self.qty = qty


# Product Schema
class ProductSchema(ma.Schema):
    class Meta:
        fields = ('id', 'name', 'description', 'price', 'qty')


# Init Schema
product_schema = ProductSchema()
products_schema = ProductSchema(many=True)


# Create Product
@app.route('/product', methods=['POST'])
def add_product():
    name = request.json['name']
    description = request.json['description']
    price = request.json['price']
    qty = request.json['qty']

    new_product = Product(name, description, price, qty)

    db.session.add(new_product)
    db.session.commit()

    return product_schema.jsonify(new_product)


# Get All Products
@app.route('/receive', methods=['GET'])
def get_products():
    all_products = Product.query.all()
    result = products_schema.dump(all_products)
    return jsonify(result)


# Run the Server
if __name__ == '__main__':
    app.run(debug=True)

我想通过GET方法提取发件人的IP地址。但是，发送者的 IP 不需要是 JSON 有效负载的一部分。

示例：POST

{
    "name": "Product 1",
    "description": "This is product 1",
    "price": 120.00,
    "qty": 100
}

获取

{
    "ip": "<whatever-the-ip>"
    "name": "Product 1",
    "description": "This is product 1",
    "price": 120.00,
    "qty": 100
}

如何在我的代码中实现此功能？我尝试使用request.remote_addr，但没有达到我的预期。

Answer 1

您可以在返回之前以任何方式修改 GET 路由中的响应，我在序列化数据库结果后将请求的 IP 添加到响应中，如下所示：

# Get All Products
@app.route('/receive', methods=['GET'])
def get_products():
    all_products = Product.query.all()
    results = products_schema.dump(all_products)
    for product in results
        product.update({"ip": str(request.remote_addr)})
    return jsonify(results)