ng serve with traditional backend
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- 功能
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- 基本清楚
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- 停滞
- 技术栈
- angular, typescript
- 领域
- cli
调研方向
首先跟踪 ng serve 对 /ng-cli-ws、延迟加载的资源、hot-update 文件以及 options.ssl 行为的处理，然后审查现有的 public-host 流程。完成的标准是：提供一种受支持的方式，通过传统后端提供 Angular 的开发资源和 websocket，同时不破坏后端路由或协议选择。
由索引模型根据 Issue 内容生成。
描述
Which @angular/* package(s) are relevant/related to the feature request?
compiler-cli
Description
I would like to serve the index.html using a traditional backend, and use ng serve to get HMR for the angular app.
The issue with a proxy for the backend API calls is that development and production behave differently. Also, you cant have additional logic on the backend before serving the index.html (for example cookie auth)
Proposed solution
Have a flag on ng serve that the websocket should go directly to the angular server. and would be nice if we can have a single script instead of having to add it all manually.
In vite all you need to do is add the following to your server's HTML template.
<script type="module" src="http://localhost:5173/@vite/client"></script>
<script type="module" src="http://localhost:5173/main.js"></script>
https://vitejs.dev/guide/backend-integration.html
Alternatives considered
I tried adding the full path to the angular scripts, but the /ng-cli-ws calls goes to the backend server.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Angular</title>
<base href="/">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/x-icon" href="https://localhost:4200/favicon.ico">
<link rel="stylesheet" href="https://localhost:4200/styles.css"></head>
<body>
<app-root></app-root>
<script src="http://localhost:4200/runtime.js" type="module"></script><script src="https://localhost:4200/polyfills.js" type="module"></script><script src="https://localhost:4200/styles.js" defer></script><script src="https://localhost:4200/vendor.js" type="module"></script><script src="https://localhost:4200/main.js" type="module"></script></body>
</html>
--public-host=localhost:4200 fixes the /ng-cli-ws call, but lazy loading and the .hot-update.json still goes the backend server.
changing the base href to https://localhost:4200/ fixes above, but breaks the routing links
also, you need to enable ssl if your backend is ssl, as it will go to wss instead of ws, i think this should rather be based on options.ssl see https://github.com/angular/angular-cli/issues/24373#issue-1475322626.
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