request-logging

Print the express request log to console or save it to external data source by providing onReqFinished callback function.

Installation

npm install @yunnysunny/request-logging --save

Usage

const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const requestLog = require('@yunnysunny/request-logging').default;

const app = express();
app.enable('trust proxy');

// view engine setup
app.set('port', port);
app.use(requestLog());

app.use(bodyParser.json({limit: '1mb'}));
app.use(bodyParser.urlencoded({
    extended: false,
    limit: '1mb'
}));

API

See api document.

Fields

If you want to save request logging to mongodb, this is the fields description, which you will used to create a mongoose schema:

name	type	description
req_id	String	The unique id for one log record, can been changed by given genId function.
domain	String	The domain of current server.
original_url	String	The original url contains query string.
path	String	The request path doesn't contain query string.
router	String	The request router for express.
user_agent	String	The user agent.
custom_headers	Object	The specific headers you wanna save.
custom_envs	Object	The specific env variables you wanna save.
method	String	The http request method.
ip	String	The client's ip.
server_ip	String	The server's ip.
server_host	String	The server's hostname.
duration	Number	The millisecond the request costed.
pid	Number	The server's process id.
req_seq	Number	The inner request number, auto increased when new request come.
content_length_req	Number	The content-length of the request headers.
content_length	Number	The content-length of the response headers.
status_code	Number	The status code of current HTTP response.
res_code	Number	The inner response code, which will been get from the response header of res-code or res.locals._res_code.
res_data	String/any	The response data, which will been get from res.locals._res_data.
req_time	Number	The timestamp of begin time of current request occured.
req_time_string	String	The time of begin time, formatted in ISO 8601 Extended Format.
req_data	String/any	The request data, which would form query string or form data.
referer	String	The HTTP referer header.
session	Object	The session of current request.
aborted	Boolean	Whether the request has aborted.

We suggest you use such mongoose schema, which is compatible when the fields is changed:

const {Schema} = require('mongoose');

const requestLogSchema =  new Schema({
    req_time: Date
},{ 
    timestamps: {
        createdAt: 'created_at',
        updatedAt : 'updated_at'
    },
    strict: false
});
module.exports = requestLogSchema;

Breaking changes

0.17.x

1. req_id is now an unique string, the original req_id has renamed to req-seq.
2. host is renamed to server_ip.
3. hostname is renamed to domain.

0.16.x

1. Remove kafkaSchedule mongooseModel alarm option, please use onReqFinished instead.
2. The default dataFormat function will use JSON.stringify to return string, since it's safe for elasticsearch. If you want to return with you own format, please pass the dataFormat parameter yourself.

License

MIT