499 Client Closed Request

An unofficial Nginx code. The client closed the connection before the server could send a response.

When and Why to Use It

Nginx uses this internally in log files to indicate that the client hung up before Nginx could build the response.

Usage Examples

Shokupan (Functional)

import { HttpException, get } from 'shokupan';

export const getResource = get('/resource', () => {
    throw new HttpException('Client Closed Request', 499);
});

Shokupan (Controller)

import { Controller, Get, HttpException } from 'shokupan';

@Controller('/api')
export class ExampleController {
    @Get('/resource')
    getResource() {
        throw new HttpException('Client Closed Request', 499);
    }
}

Express

import express from 'express';
const app = express();

app.get('/resource', (req, res) => {
    res.status(499).json({ error: 'Client Closed Request' });
});

Nest

import { Controller, Get, HttpException } from '@nestjs/common';

@Controller('api')
export class ExampleController {
  @Get('resource')
  getResource() {
    throw new HttpException('Client Closed Request', 499);
  }
}

Koa

import Koa from 'koa';
const app = new Koa();

app.use(async ctx => {
  if (ctx.path === '/resource' && ctx.method === 'GET') {
    ctx.status = 499;
    ctx.body = { error: 'Client Closed Request' };
  }
});