快速上手简单接口

npm install  express morgan uuid lowdb@1 cookie-parser -D

// app.js
// require package
const express = require("express");
const logger = require("morgan");
const cookieParser = require("cookie-parser");
const database = require("./database/index");
const app = express();

app.use(logger("dev"));
app.set("trust proxy", 1); // trust first proxy
app.use(express.json({ limit: "50mb" }));
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());

// 配置跨域
app.use("", (req, res, next) => {
  res.set({
    "Access-Control-Allow-Credentials": true,
    "Access-Control-Allow-Origin": req.headers.origin || "*",
    "Access-Control-Allow-Headers": "Content-Type,Access-Token",
    "Access-Control-Allow-Methods": "PUT,POST,GET,DELETE,OPTIONS",
    "Content-Type": "application/json; charset=utf-8"
  });
  next();
});

//添加拦截器
const whiteList = ["/user/login", "/user/logout", "/api/config/"];
app.use(function (req, res, next) {
  let token = req.cookies.token;
  let user_from_token = database.get("userList").find({ token }).value();
  if (user_from_token) {
    next();
  } else {
    const path = req.path;
    console.log("用户没有登陆：" + req.path);
    if (path.includes(whiteList[0]) || path.includes(whiteList[1]) || path.includes(whiteList[2])) {
      next();
    } else {
      res.send({ result: "error", code: 1001, msg: "Token 已经过期" });
    }
  }
});

// 这里编写路由
app.use("/api/config", require("./routes/config.js"));

// 命令行传参
const port = process.env.PORT || 3000;
const host = process.env.HOST || "";

app.server = app.listen(port, host, () => {
  console.log(`server running @ http://${host ? host : "localhost"}:${port}`);
});

{
  "mock": "cd mock && node app.js "
}