Package Exports

koa-error

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (koa-error) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

koa-error

Error response middleware for koa supporting:

text
json
html

Installation

$ npm install koa-error

Options

template path to template written with your template engine
engine template engine name passed to consolidate
cache cached compiled functions, default: NODE_ENV != 'development'
env force a NODE_ENV, default: development
accepts mimetypes passed to ctx.accepts, default: [ 'html', 'text', 'json' ]

Custom templates

By using the template option you can override the bland default template, with the following available local variables:

env
ctx
request
response
error
stack
status
code

Here are some examples:

Pug (formerly jade)

app.use(error({
  engine: 'pug',
  template: __dirname + '/error.pug'
}));

doctype html
html
  head
    title= 'Error - ' + status
  body
    #error
      h1 Error
      p Looks like something broke!
      if env == 'development'
        h2 Message:
        pre: code= error
        h2 Stack:
        pre: code= stack

Nunjucks

app.use(error({
  engine: 'nunjucks',
  template: __dirname + '/error.njk'
}));

<!DOCTYPE html>
<html>
  <head>
    <title>Error - {{status}}</title>
  </head>
  <body>
    <div id="error">
      <h1>Error</h1>
    <p>Looks like something broke!</p>
    {% if env == 'development' %}
      <h2>Message:</h2>
      <pre>
        <code>
{{error}}
        </code>
      </pre>
      <h2>Stack:</h2>
      <pre>
        <code>
{{stack}}
        </code>
      </pre>
    {% endif %}
    </div>
  </body>
</html>

License

MIT