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@greylocklabs/http

1.2.0 • Public • Published

@greylocklabs/http

Utilities for working with HTTP status codes, errors, and more

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This package provides a series of useful Node.js modules meant for use in web servers. The following utilities are included:

  1. status - HTTP status code utilities
  2. errors - Custom HTTP errors for use in Koa, Express, etc.
  3. createError function - Create an HTTP error from a status code

Additionally, a createError(statusCode, message) function is provided so you can easily create the correct ClientError or ServerError from an HTTP status code. Useful in cases where you're interacting with a third-party API and might not know what status codes to expect. See below for examples.

Installation

Install using npm:

$ npm install @greylocklabs/http

Usage

Here's a basic web server using the Koa framework as an example:

import Koa from 'koa';
import Router from 'koa-router';

import { createError, errors, status } from '../src';

const app = new Koa();
const router = new Router();

router.get('/api', async (ctx, next) => {
    await next();

    ctx.status = status.OK; // 200
    ctx.message = status[200]; // 'OK'
    ctx.body = {
        api: 'running',
    };
});

router.get('/errors/404', () => {
    throw new errors.NotFoundError('Nothing to see here!'); // error exposed to client by default
});

router.get('/errors/500', () => {
    throw new errors.InternalServerError('Something broke!'); // only shows "Internal Server Error" publicly
});

router.get('/custom/:code', (ctx) => {
    throw createError(ctx.params.code); // throws the error that corresponds to the status code provided
});

app.use(router.routes());

app.listen(3000, () => {
    console.log('App is listening on port 3000...');
});

More examples can be found here!

Documentation

The documentation can be viewed here.

Contributing

See CONTRIBUTING.md for details.

License

MIT License. See LICENSE file for details.

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npm i @greylocklabs/http

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1.2.0

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  • tylucaskelley