es-http-error

es-http-error

HttpError class for browsers (without Node.js dependencies)

Installation

$ npm install es-http-error

Usage

throw new HttpError(404) // 'Not Found' as a default message
throw new HttpError(401, 'Unauthorized') // Custom Error Message

Supported http status codes are here.

Example

import HttpError from 'es-http-error'

main()
async function main (id) {
  try {
    // retrieve some data from API server
    const res = await fetch('/api/something/great')
    // check the response and throw an error if it's not ok
    if (!res.ok) throw new HttpError(res.status)
    
    // for example, render the view by lit-html
    const render(view(await res.json()), document.body)
  } catch (e) {
    if (e instanceof HttpError) {
      if (e.code === 401) logout()
      if (e.code === 404) notFound()
    } else throw e
  }
}

Motivation

There're some prior arts like below, but I couldn't find the one for browsers. So I made it.

• boom
• http-errors
• http-error - So close! But it has dependency for util.

...etc.

License

MIT