如何在Vite dev服务器中填充"process“节点模块？

Question

在我的Vite项目中，我依赖于一个模块，该模块在其功能中使用process节点全局。我没有从代码中调用这个函数，但是在导入模块时，Vite dev服务器仍然给出了这个错误：

Uncaught ReferenceError: process is not defined

有趣的是，当我创建一个生产构建时，我没有看到这个错误。

如何使用无操作填充process，使Vite开发服务器停止失败？

Answer 1

我今天在一个使用rollup + vite的React项目中遇到了同样的问题，下面是我如何使用这是法比亚诺·泰奥利的中篇作品解决这个问题的方法。

Vite需要Node.js填充

您需要添加一些多填充插件以允许节点全局化，例如process。幸运的是，您可以简单地编辑(或创建) vite.config.js。

示例vite.config.js

下面是一个示例，其中包括使用NodeGlobalsPolyfillPlugin填充process。它还包括许多其他节点全局，因此在您空闲时删除。

import { defineConfig } from 'vite';
import { NodeGlobalsPolyfillPlugin } from '@esbuild-plugins/node-globals-polyfill';
import { NodeModulesPolyfillPlugin } from '@esbuild-plugins/node-modules-polyfill';
import ReactPlugin from 'vite-preset-react';
import rollupNodePolyFill from 'rollup-plugin-node-polyfills'
// https://vitejs.dev/config/
export default defineConfig({
  resolve: {
    alias: {
      // This Rollup aliases are extracted from @esbuild-plugins/node-modules-polyfill,
      // see https://github.com/remorses/esbuild-plugins/blob/master/node-modules-polyfill/src/polyfills.ts
      // process and buffer are excluded because already managed
      // by node-globals-polyfill
      util: 'rollup-plugin-node-polyfills/polyfills/util',
      sys: 'util',
      events: 'rollup-plugin-node-polyfills/polyfills/events',
      stream: 'rollup-plugin-node-polyfills/polyfills/stream',
      path: 'rollup-plugin-node-polyfills/polyfills/path',
      querystring: 'rollup-plugin-node-polyfills/polyfills/qs',
      punycode: 'rollup-plugin-node-polyfills/polyfills/punycode',
      url: 'rollup-plugin-node-polyfills/polyfills/url',
      string_decoder: 'rollup-plugin-node-polyfills/polyfills/string-decoder',
      http: 'rollup-plugin-node-polyfills/polyfills/http',
      https: 'rollup-plugin-node-polyfills/polyfills/http',
      os: 'rollup-plugin-node-polyfills/polyfills/os',
      assert: 'rollup-plugin-node-polyfills/polyfills/assert',
      constants: 'rollup-plugin-node-polyfills/polyfills/constants',
      _stream_duplex:
        'rollup-plugin-node-polyfills/polyfills/readable-stream/duplex',
      _stream_passthrough:
        'rollup-plugin-node-polyfills/polyfills/readable-stream/passthrough',
      _stream_readable:
        'rollup-plugin-node-polyfills/polyfills/readable-stream/readable',
      _stream_writable:
        'rollup-plugin-node-polyfills/polyfills/readable-stream/writable',
      _stream_transform:
        'rollup-plugin-node-polyfills/polyfills/readable-stream/transform',
      timers: 'rollup-plugin-node-polyfills/polyfills/timers',
      console: 'rollup-plugin-node-polyfills/polyfills/console',
      vm: 'rollup-plugin-node-polyfills/polyfills/vm',
      zlib: 'rollup-plugin-node-polyfills/polyfills/zlib',
      tty: 'rollup-plugin-node-polyfills/polyfills/tty',
      domain: 'rollup-plugin-node-polyfills/polyfills/domain',
    },
  },
  optimizeDeps: {
    esbuildOptions: {
      // Node.js global to browser globalThis
      define: {
        global: 'globalThis',
      },
      // Enable esbuild polyfill plugins
      plugins: [
        NodeGlobalsPolyfillPlugin({
          process: true,
          buffer: true,
        }),
        NodeModulesPolyfillPlugin(),
      ],
    },
  },
  plugins: [
    ReactPlugin({
      injectReact: false,
    }),
    rollupNodePolyFill(),
  ],
});

所需开发依赖关系

要使上面的示例正常工作，您需要添加一些依赖项。特别是：

yarn add --dev vite-preset-react
yarn add --dev @esbuild-plugins/node-modules-polyfill
yarn add --dev @esbuild-plugins/node-globals-polyfill