68 lines
1.5 KiB
Markdown
68 lines
1.5 KiB
Markdown
# v0.8.1：NocoBase 的 Logging 系统
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## `@nocobase/logger`
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基于 Winston 实现，提供了便捷的创建 logger 实例的方法。
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```ts
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const logger = createLogger();
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logger.info('Hello distributed log files!');
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const { instance, middleware } = createAppLogger(); // 用于 @nocobase/server
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app.logger = instance;
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app.use(middleware);
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```
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## 新增的环境变量
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logger 相关环境变量有：
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- [LOGGER_TRANSPORT](/api/env#logger_transport)
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- [DAILY_ROTATE_FILE_DIRNAME](/api/env#daily_rotate_file_dirname)
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## Application 的 logger 配置
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```ts
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const app = new Application({
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logger: {
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async skip(ctx) {
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return false;
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},
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requestWhitelist: [],
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responseWhitelist: [],
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transports: ['console', 'dailyRotateFile'],
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},
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})
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```
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更多配置项参考 [Winston 文档](https://github.com/winstonjs/winston#table-of-contents)
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## app.logger & ctx.logger
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ctx.logger 带有 reqId，整个 ctx 周期里都是一个 reqId
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```ts
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ctx.logger = app.logger.child({ reqId: ctx.reqId });
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```
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`app.logger` 和 `ctx.logger` 都是 Winston 实例，详细用法参考 [Winston 文档](https://github.com/winstonjs/winston#table-of-contents)
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## 自定义 Transports
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除了 Winston 的方式以外，NocoBase 还提供了一种更便捷的方式
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```ts
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import { Transports } from '@nocobase/logger';
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Transports['custom'] = () => {
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return new winston.transports.Console();
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};
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const app = new Application({
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logger: {
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transports: ['custom'],
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},
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})
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```
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