451 Unavailable For Legal Reasons

The server legally cannot show you this content (e.g. court order or government censorship). The number references the book Fahrenheit 451.

When and Why to Use It

Use this if you receive a DMCA takedown or a government mandate blocking specific content, and you want to be totally transparent about why it’s blocked.

Usage Examples

Shokupan (Functional)

import { HttpException, get } from 'shokupan';

export const getResource = get('/resource', () => {
    throw new HttpException('Unavailable For Legal Reasons', 451);
});

Shokupan (Controller)

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

@Controller('/api')
export class ExampleController {
    @Get('/resource')
    getResource() {
        throw new HttpException('Unavailable For Legal Reasons', 451);
    }
}

Express

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

app.get('/resource', (req, res) => {
    res.status(451).json({ error: 'Unavailable For Legal Reasons' });
});

Nest

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

@Controller('api')
export class ExampleController {
  @Get('resource')
  getResource() {
    throw new HttpException('Unavailable For Legal Reasons', 451);
  }
}

Koa

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

app.use(async ctx => {
  if (ctx.path === '/resource' && ctx.method === 'GET') {
    ctx.status = 451;
    ctx.body = { error: 'Unavailable For Legal Reasons' };
  }
});