如何在Vite开发服务器中填充“process”节点模块？

Question

在我的 Vite 项目中，我依赖于一个在其功能之一中使用

process

Node 全局的模块。我没有从我的代码中调用这个函数，但是当我导入模块时Vite dev服务器仍然给我这个错误：

Uncaught ReferenceError: process is not defined

有趣的是，当我创建生产版本时，我没有看到此错误。

如何使用空操作来填充

process

，以便 Vite 开发服务器停止失败？

Answer 1

另一种方法是添加到您的index.html

<script type="module">
  import process from 'process';
  window.process = process;
</script>

Answer 2

我正在使用 node-stdlib-browser，它对我来说非常有效。

以下是我的最终作品

vite.config.ts

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import path from 'path'
import nodeStdlibBrowser from 'node-stdlib-browser'
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import inject from '@rollup/plugin-inject'

// https://vitejs.dev/config/
export default defineConfig({
    plugins: [
        vue(),
        // https://github.com/antfu/unplugin-auto-import#configuration
        AutoImport({
            dts: 'src/auto-import.d.ts',
            imports: ['vue', 'vue-router'],
            eslintrc: {
                enabled: true,
            },
        }),
        // https://github.com/antfu/unplugin-vue-components#configuration
        Components({
            dts: 'src/components.d.ts',
        }),
        // https://github.com/niksy/node-stdlib-browser#vite
        {
            ...inject({
                global: [require.resolve('node-stdlib-browser/helpers/esbuild/shim'), 'global'],
                process: [require.resolve('node-stdlib-browser/helpers/esbuild/shim'), 'process'],
                Buffer: [require.resolve('node-stdlib-browser/helpers/esbuild/shim'), 'Buffer'],
            }),
            enforce: 'post',
        },
    ],
    resolve: {
        alias: { '@': path.resolve(__dirname, 'src'), ...nodeStdlibBrowser },
    },
    optimizeDeps: {
        esbuildOptions: {
            target: 'esnext', // Enable Big integer literals
        },
    },
    build: {
        target: 'esnext', // Enable Big integer literals
        commonjsOptions: {
            transformMixedEsModules: true, // Enable @walletconnect/web3-provider which has some code in CommonJS
        },
    },
})

Answer 3

我今天在使用 rollup + vite 的 React 项目中遇到了同样的问题，以下是我如何解决它的方法，使用 Fabiano Taioli 的这篇 Medium 文章。

Vite 需要 Node.js polyfills

您需要添加一些polyfill插件来允许Node全局变量，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

来填充

process

。它还包括许多其他节点全局变量，因此您可以随意删除。

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(),
  ],
});

需要开发依赖

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

Answer 4

请使用“esbuild-plugin-polyfill-node”插件。 https://npm.io/package/esbuild-plugin-polyfill-node 这为我解决了问题，并且无需在脚本标记中手动添加和分配

global = window

。