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* chore: adding access log * chore: adding logging of request bodies if present
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import { Injectable, Logger, NestMiddleware } from '@nestjs/common'; | ||
import { NextFunction, Request, Response } from 'express'; | ||
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@Injectable() | ||
export class HttpLoggerMiddleware implements NestMiddleware { | ||
private readonly logger = new Logger(HttpLoggerMiddleware.name, { timestamp: true }); | ||
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use(req: Request, res: Response, next: NextFunction) { | ||
const requestStarted = Date.now(); | ||
const { method } = req; | ||
const url = req.originalUrl; | ||
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let finished = false; | ||
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res.on('finish', () => { | ||
const message = `${res.statusCode} ${res.statusMessage} | [${method}] ${url} - ${ | ||
Date.now() - requestStarted | ||
}ms`; | ||
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finished = true; | ||
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if (this.is4xxErrorCode(res.statusCode)) { | ||
this.logger.warn(message); | ||
} else if (this.is5xxErrorCode(res.statusCode)) { | ||
this.logger.error(message); | ||
} else { | ||
this.logger.log(message); | ||
} | ||
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if (req.body) { | ||
this.logger.debug(`request body: ${JSON.stringify(req.body)}`); | ||
} | ||
}); | ||
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res.on('close', () => { | ||
if (!finished) { | ||
this.logger.warn(`connection closed | [${method}] ${url} - ${Date.now() - requestStarted}ms`); | ||
} | ||
}); | ||
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next(); | ||
} | ||
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is4xxErrorCode(statusCode: number): boolean { | ||
return statusCode >= 400 && statusCode < 500; | ||
} | ||
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is5xxErrorCode(statusCode: number): boolean { | ||
return statusCode >= 500 && statusCode < 600; | ||
} | ||
} |
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export * from './http-logger.middleware'; |