koa-external-logger

Fork of koa-logger that exposes the logging information for storage and/or processing.

Notice: koa-external-logger@2 supports koa@2; if you want to use this module with koa@1, please use koa-external-logger@1.

<-- GET /
--> GET / 200 835ms 746b
<-- GET /
--> GET / 200 960ms 1.9kb
<-- GET /users
--> GET /users 200 357ms 922b
<-- GET /users?page=2
--> GET /users?page=2 200 466ms 4.66kb

Installation

$ npm install koa-external-logger

Example

const logger = require('koa-external-logger')
const Koa = require('koa')
 
const app = new Koa()
app.use(logger({
  externalLogger: async function(logObj) {
    //perform some action or await to another promise
  },
  consoleEnabled: process.env.NODE_ENV !== 'production'
}))

Options

• externalLogger - optional - Async function/promise that takes a logging object as a parameter.
• consoleEnabled - optional, default: true - If set to false, nothing will be sent to console.log.
• truncateUrlQuery - optional, default: false - If set, the query portion of the URL sent to console.log will be truncated to the first 20 characters (to not pollute the console).

Log Object

• time - Unix time in ms of the start of the request.
• originalUrl - Requested URL.
• status - HTTP status code.
• duration - Duration of request in ms.
• length - Length of response in bytes. This will be 0 if it's an error.
• context - koa context object reference.
• error - Error object.

Notes

Recommended that you .use() this middleware near the top to "wrap" all subsequent middleware.

License

MIT