NxModuleFederationwithAngular-NoproviderforHttpClient

当使用Nx Module Federation将多个Angular应用程序集成时，遇到“No provider for HttpClient”错误非常常见。这是因为HttpClient需要在@angular/common/http模块中进行导入，但此模块可能未正确地传递给子应用程序。

下面是解决此问题的示例代码：

在主应用程序的Webpack配置文件（webpack.config.js）中，为其配置ProvidePlugin：

const ModuleFederationPlugin = require('webpack/lib/container/ModuleFederationPlugin'); const {ProvidePlugin} = require('webpack');

module.exports = { // ... plugins: [ new ModuleFederationPlugin({ // ... }), new ProvidePlugin({ // 提供了与Angular应用程序相关的全局变量 // 并将HttpClient添加到全局变量 'ng.core': ['@angular/core'], 'ng.common': ['@angular/common'], 'ng.router': ['@angular/router'], 'ng.http': ['@angular/common/http'], HttpClient: ['@angular/common/http', 'HttpClient'], HttpHeaders: ['@angular/common/http', 'HttpHeaders'], HttpErrorResponse: ['@angular/common/http', 'HttpErrorResponse'] }) ], // ... };

在子应用程序（Remotes）的Webpack配置文件（webpack.config.js）中，添加对@angular/common/http模块的导入：

const ModuleFederationPlugin = require('webpack/lib/container/ModuleFederationPlugin'); const {ProvidePlugin} = require('webpack'); const {dependencies} = require('./package.json');

module.exports = { // ... plugins: [ new ModuleFederationPlugin({ // ... remotes: { // ... }, shared: { // ... } }), new ProvidePlugin({ // 在此处添加以下导入 HttpClient: ['@angular/common/http', 'HttpClient'], HttpHeaders: ['@angular/common/http', 'HttpHeaders'], HttpErrorResponse: ['@angular/common/http', 'HttpErrorResponse'] }) ], // ... // 确保共享以下依赖项： // ... // 对于Angular应用程序，应该至少有以下共享依赖项： // ... dependencies: { // ... '@angular/common/http': dependencies['@angular/common/http'], '@angular/common': dependencies['@angular/common'], '@angular/core': dependencies['@angular/core'], '@angular/router': dependencies['@angular/router'] } };

通过这种方法，可以成功解决“Nx Module Federation with Angular - No provider for HttpClient”错误。同时，还需要确保