angular - 将AWS放大到Angular应用程序时出现错误: global is not defined

Question

我正在测试从Angular到Cognito用户池的AWS Amplify，方法如下:

https://docs.amplify.aws/lib/restapi/getting-started/q/platform/js

Angular应用已成功编译，但是在Chrome控制台中抛出了异常:

index.js:43 Uncaught ReferenceError: global is not defined
at Object../node_modules/buffer/index.js (index.js:43)
at __webpack_require__ (bootstrap:84)
at Module../node_modules/amazon-cognito-identity-js/es/AuthenticationHelper.js (AuthenticationHelper.js:1)
at __webpack_require__ (bootstrap:84)
at Module../node_modules/amazon-cognito-identity-js/es/index.js (index.js:1)
at __webpack_require__ (bootstrap:84)
at Module../node_modules/@aws-amplify/auth/lib-esm/Auth.js (Auth.js:1)
at __webpack_require__ (bootstrap:84)
at Module../node_modules/@aws-amplify/auth/lib-esm/index.js (index.js:1)
at __webpack_require__ (bootstrap:84)

请问一个主意吗？

Answer 1

this suggestion works in this case as well.

<script>
    var global = global || window;
    var Buffer = Buffer || [];
    var process = process || {
      env: { DEBUG: undefined },
      version: []
    };
  </script>

或添加到 polyfills.ts的末尾

(window as any).global = window;
(window as any).process = {
  env: { DEBUG: undefined },
};