3分钟搞定！用 VPS 伪造 API 难道还不会? ｜ 3‑Minute Hack: Faking APIs Like a Pro😂

搭建一个免费、本地、可控的“网络 + Mock API + Python 小实验室”，用 v2rayN/sing-box 管理网络环境，用本地 Fake/Mock API 做开发测试。 以前折腾网络和接口，像同时修路、修水管、还要猜服务器心情。现在 v2rayN + 本地 Mock API + Python 像自带迷你实验室：网络自己管，接口自己造，数据自己演。免费、可控、离线友好。小缺点？本地服务偶尔也会“罢工”，但至少这次老板就是你 😂
Networking and APIs used to feel like fixing roads, plumbing, and server moods at once. Now v2rayN + local Mock API + Python feels like owning a mini lab: control the network, fake the backend, test freely, and stay local. Mostly smooth—though local servers sometimes take coffee breaks too 😂

本地天气 API 实验室（Fake Weather API Lab）

Local Fake Weather API Lab - 免费本地 Mock API 开发小实验这是一个免费、本地、可控的网络 + Mock API + Python 小实验室。通过 v2rayN/sing-box 管理网络环境，用本地 Fake API 进行开发测试。


Step 1. 安装基础工具 / Install Basic Tools做什么？ / What to do?

安装实验所需的核心工具。 / Install local tools.Mac 操作： / Mac Commands:

python3 --version

git --versionWindows 用户请前往官网下载安装 Python 和 Git。 / Windows users please download Python and Git from official websites.


Step 2. 安装 v2rayN / sing-box / Install v2rayN or sing-box做什么？ / What to do?

安装网络客户端，用于模拟真实网络开发环境。 / Install network client.作用： / Purpose:

不是为了翻墙，而是模拟真实网络环境（DNS、路由、代理切换），让本地实验更接近真实开发场景。 / Not for bypassing firewall, but to simulate real network environment (DNS, routing, proxy switching).支持平台： / Supported Platforms:

Mac / Linux / Windows 全部支持。 / Fully supported on Mac / Linux / Windows.下载地址： / Download Links:

v2rayN（Windows 推荐）：https://github.com/2dust/v2rayN

sing-box（跨平台推荐）：https://github.com/sing-box/sing-box


Step 3. 创建项目文件夹 / Create Project Folder做什么？ / What to do?

建立实验工作目录。 / Create workspace.命令： / Commands:

mkdir ~/fake_api_lab

cd ~/fake_api_lab项目结构： / Project Structure:

fake_api_lab/

├── weather.json

├── server.py


Step 4. 准备 Fake API 数据 / Prepare Mock API Data做什么？ / What to do?

创建模拟天气数据。 / Mock API data.新建文件 weather.json，内容如下： / Create weather.json with the following content:{

  "city": "Sydney",

  "temp": 22,

  "condition": "Sunny",

  "humidity": 65,

  "wind": "12 km/h"

}


Step 5. 编写并启动本地 Fake Backend / Run Local Fake Backend这是本实验核心。 / This is the core of the lab.做什么？ / What to do?

用 Python 启动一个本地天气 API 服务器。 / Run local backend server.新建文件 server.py，内容如下： / Create server.py with the following code:from http.server import BaseHTTPRequestHandler, HTTPServer

import json  class Handler(BaseHTTPRequestHandler):

    def do_GET(self):

        if self.path == "/weather":

            with open("weather.json", encoding="utf-8") as f:

                data = json.load(f)

            self.send_response(200)

            self.send_header("Content-Type", "application/json")

            self.end_headers()

            self.wfile.write(json.dumps(data).encode())

        else:

            self.send_response(404)

            self.end_headers()  server = HTTPServer(("localhost", 8000), Handler)

print("Fake Weather API 正在运行... http://localhost:8000/weather")

server.serve_forever()启动命令： / Run Command:

python3 server.py


Step 6. 测试本地 Fake API / Test Fake Backend测试命令： / Test Command:

curl http://localhost:8000/weather预期返回结果： / Expected Result:{"city":"Sydney", "temp":22, "condition":"Sunny", "humidity":65, "wind":"12 km/h"}v2rayN / sing-box 在本实验中的作用 / Role of v2rayN or sing-box作用： / Purpose:

不是必须，但非常有用。 / Not mandatory but very useful.它可以： / It can:  模拟真实网络环境（不同地区、不同出口 IP） / Simulate real network environment (different regions and exit IPs)


Step 7. 测试 DNS 解析、路由规则对 API 请求的影响 / Test DNS and routing effects on API calls

练习在不同网络环境下调用本地或远程 API / Practice calling APIs under different network conditions

为后续更复杂的本地实验打好基础 / Build foundation for advanced local experiments


Step 8. 实验完成提示： / Lab Tips:  保持 python3 server.py 窗口一直运行 / Keep the python3 server.py window running

可随时修改 weather.json 文件来模拟不同天气数据 / Modify weather.json anytime to simulate different weather

用 v2rayN 切换不同节点后重新执行 curl 命令，观察返回结果是否变化 / Switch nodes in v2rayN and re-test with curl to see differences

referal link:
https://ikuuu.win/auth/register?code=AMkk

相关链接(Related links):

https://github.com/2dust/v2rayN

https://github.com/2dust/v2rayN/releases

https://github.com/XTLS/Xray-core

https://github.com/SagerNet/sing-box

https://python.org

https://git-scm.com

https://github.com/typicode/json-server

https://mockoon.com

https://github.com/manjeyy/mocktopus

https://v2rayn.xyz/en/

https://subconverters.com/clash-to-v2ray https://sub.v1.mk/ https://acl4ssr-sub.github.io/ https://www.ip2free.com/cn https://ikuuu.org/auth/login https://tempail.com/en/ https://scamalytics.com/


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