这是什么
一篇关于 Koa2(Node.js 框架)登录系统的实践文章本周发布。作者没有让 AI 一次性生成所有代码,而是将开发拆为 5 个递进阶段:从能跑通环境的/health 接口,到注册用户并用 bcrypt(密码哈希库)加密,最后到登录与会话 Cookie(服务端识别用户身份的机制)的全链路贯通。每一步都只增加一个能力,并用 curl 命令行验收,确保上一个 Checkpoint(检查点)无误再往下走。这种「先契约再写代码」的方式,把黑盒开发变成了可归因的透明过程。
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/health 接口,到注册用户并用 bcrypt(密码哈希库)加密,最后到登录与会话 Cookie(服务端识别用户身份的机制)的全链路贯通。每一步都只增加一个能力,并用 curl 命令行验收,确保上一个 Checkpoint(检查点)无误再往下走。这种「先契约再写代码」的方式,把黑盒开发变成了可归因的透明过程。
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