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Bun 原生支持 .yaml.yml 文件導入。

yaml
database:
  host: localhost
  port: 5432
  name: myapp

server:
  port: 3000
  timeout: 30

features:
  auth: true
  rateLimit: true

像其他源文件一樣導入文件。

ts
import config from "./config.yaml";

config.database.host; // => "localhost"
config.server.port; // => 3000
config.features.auth; // => true

你也可以使用命名導入來解構頂層屬性:

ts
import { database, server, features } from "./config.yaml";

console.log(database.name); // => "myapp"
console.log(server.timeout); // => 30
console.log(features.rateLimit); // => true

Bun 還支持 Import Attributes 語法:

ts
import config from "./config.yaml" with { type: "yaml" };

config.database.port; // => 5432

對於運行時解析 YAML 字符串,使用 Bun.YAML.parse()

ts
const yamlString = `
name: John Doe
age: 30
hobbies:
  - reading
  - coding
`;

const data = Bun.YAML.parse(yamlString);
console.log(data.name); // => "John Doe"
console.log(data.hobbies); // => ["reading", "coding"]

TypeScript 支持

要為 YAML 導入添加 TypeScript 支持,創建一個聲明文件,在 YAML 文件名後附加 .d.ts(例如 config.yamlconfig.yaml.d.ts):

ts
const contents: {
  database: {
    host: string;
    port: number;
    name: string;
  };
  server: {
    port: number;
    timeout: number;
  };
  features: {
    auth: boolean;
    rateLimit: boolean;
  };
};

export = contents;

查看 文檔 > API > YAML 了解 Bun 中 YAML 支持的完整文檔。

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