小程序调用豆瓣接口403 node的解决方案

豆瓣好像禁了小程序的接口调用，返回403错误。网上查了一圈豆瓣应该是通过headers里的referer判断的。

可是wx.request(OBJECT)又不能更改referer。

image

网上都是用nginx来搞的，无奈我这菜B还不会用。。。

所以就自己试着用node做服务器代理。

上代码：

    var express = require("express");
    var app = express();
    var proxy = require("http-proxy-middleware");
    var cors = require("cors");
    var apiproxy = [proxy("/v2/movie/top250", {
        target: "https://api.douban.com",
        changeOrigin: true
    }), proxy("/*", {
        target: "http://localhost:3000",
        changeOrigin: true
    })];

    app.use(cors());
    app.use((req, res, next) => {
        req.headers = {
            "accept": "*/*",
            "accept-encoding": "gzip, deflate, sdch, br",
            "accept-language": "zh-CN,zh;q=0.8",
            "cache-control": "no-cache",
            "connection": "keep-alive",
            "host": "localhost:5000",
            "origin": "http://localhost:8080",
            "pragma": "no-cache",
            "referer": "http://localhost:8080/",
            "user-agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"
        }
        next();
    });
    app.use((req, res, next) => {
        console.log(req.headers.referer);
        next();
    })
    app.use(apiproxy);


    app.listen(5000, () => {
        console.log("port on 5000")
    });

写了个中间件，headers的设置直接用了普通浏览器里请求api的设置。

    wx.request({
      url: "http://localhost:5000/v2/movie/top250",
      success(res) {
        console.log(res.data);
      }
    })

搞定！

image