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An input element that sends its value to a server endpoint and renders the response body.
JavaScript
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Latest commit b8eaa0c Aug 14, 2019

README.md

<remote-input> element

An input element that sends its value to a server endpoint and renders the response body.

Installation

$ npm install @github/remote-input-element

Usage

import '@github/remote-input-element'
<!-- Filter a list of items from the server -->
<remote-input src="/query" aria-owns="results">
  <input>
</remote-input>
<ul id="results"></ul>

A GET request will be sent to /query?q=${input.value}.

The parameter name (q) is customizable with the [param] attribute:

<!-- Live preview of Markdown -->
<remote-input src="/preview" aria-owns="md-preview" param="body">
  <textarea></textarea>
</remote-input>
<div id="md-preview"></div>

Styling loading state

A boolean [loading] attribute is added to <remote-input> when a network request begins and removed when it ends.

.loading-icon { display: none; }
remote-input[loading] .loading-icon { display: inline; }

Events

const remoteInput = document.querySelector('remote-input')

// Network request lifecycle events.
remoteInput.addEventListener('loadstart', function(event) {
  console.log('Network request started', event)
})
remoteInput.addEventListener('loadend', function(event) {
  console.log('Network request complete', event)
})
remoteInput.addEventListener('load', function(event) {
  console.log('Network request succeeded', event)
})
remoteInput.addEventListener('error', function(event) {
  console.log('Network request failed', event)
})

Browser support

Browsers without native custom element support require a polyfill.

  • Chrome
  • Firefox
  • Safari
  • Microsoft Edge

Development

npm install
npm test

License

Distributed under the MIT license. See LICENSE for details.

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