Api-request-logger NPM

api-request-logger

maintainer: Rishu Shrivastav (rish15)

Introduction

The why ?

So we wanted to track every request that comes to the server with some metadata such as userAgent, reqBody, apiPath, apiLatency so I put together a simple minimilistic middleware which can be injected in one liner and start giving data to be analysed. Adding to that it also provides a wrapper over winston library for logging, helping in generting formatted logs and requestId associated with the log statemenet.

Getting started

1. Installation

npm i api-request-logger

Usage

const { apiLogger } = require("api-request-logger");`
app.use(apiLogger)` // add this line before the routes in the entry file

Logging format

{
  "requestUrl": "http://localhost:2000/serviceName/v1/users/list",
  "requestMethod": "GET",
  "userAgent": "PostmanRuntime/7.28.4",
  "xRequestId": "f584d507e38a9f3a2e88b02e7ab7e81b",
  "apiLatency": 51.71452800184488,
  "time": "2023-06-09T05:54:45.901Z",
  "reqBody": {},
  "env": "local",
  "msg": "api_stats"
}

Logging

the log is just a wrapper over the Winston library, it formats the logs in level requestId it appends the requestId to every log statement.

Import the module

const { logger } = require("api-request-logger");

Example

logger.info("This is an info");
logger.warn("This is a warning");
logger.error("This is an error");

changing log level

For detailed log level priorities refer this winston log levels

In the .env file or any configuration file that your app uses, export an env variable LOG_LEVEL=level where the level is the log levels supported by Winston. By default log level is set to info