## A JavaScript URI template implementation

This is a simple URI template implementation following the [RFC 6570 URI Template specification](http://tools.ietf.org/html/rfc6570). The implementation supports all levels defined in the specification and is extensively tested.

## Installation

For use with Node.js or build tools you can install it through npm:

```sh
$ npm install url-template
```

If you want to use it directly in a browser use a CDN like [Skypack](https://www.skypack.dev/view/url-template).

## Example

```js
import { parseTemplate } from 'url-template';

const emailUrlTemplate = parseTemplate('/{email}/{folder}/{id}');
const emailUrl = emailUrlTemplate.expand({
  email: 'user@domain',
  folder: 'test',
  id: 42
});

console.log(emailUrl);
// Returns '/user@domain/test/42'
```

## A note on error handling and reporting

The RFC states that errors in the templates could optionally be handled and reported to the user. This implementation takes a slightly different approach in that it tries to do a best effort template expansion and leaves erroneous expressions in the returned URI instead of throwing errors. So for example, the incorrect expression `{unclosed` will return `{unclosed` as output. The leaves incorrect URLs to be handled by your URL library of choice.