如何为节点模块提供 polyfill

Question

我正在尝试在 NodeJS/express 服务器中使用 unsplash-js 模块。正如文档所说："This library depends on fetch to make requests to the Unsplash API. For environments that don't support fetch, you'll need to provide a polyfill"。我试过类似的东西，我很羞于展示，但为了学习我会

const Unsplash = require('unsplash-js').default;
const fetch = require('node-fetch');

Unsplash.prototype.fetch = fetch;

const unsplash = new Unsplash({
  applicationId: process.env.UNSPLASH_API_KEY,
});

还有这个

Node.prototype.fetch = fetch;

当然，没有任何效果。我该怎么做？

Answer 1

您需要将 fetch 设置为全局变量，如下所示：

global.fetch = require('node-fetch')

如何为节点模块提供 polyfill

How to provide a polyfill to a node module

javascript

node.js

express

polyfills