angular2-template-loader
Chain-to loader for webpack that inlines all html and style's in angular components.
Quick Links
Installation
Install the webpack loader from npm.
npm install angular2-template-loader --save-dev
Chain the angular2-template-loader
to your currently used typescript loader.
loaders: ['awesome-typescript-loader', 'angular2-template-loader'],
Requirements
To be able to use the template loader you must have a loader registered, which can handle .html
and .css
files.
The most recommended loader is
raw-loader
This loader allows you to decouple templates from the component file and maintain AoT compilation. This is particularly useful when building complex components that have large templates.
Example Usage
Webpack
Here is an example markup of the webpack.config.js
, which chains the angular2-template-loader
to the tsloader
module: {
loaders: [
{
test: /\.ts$/,
loaders: ['awesome-typescript-loader', 'angular2-template-loader?keepUrl=true'],
exclude: [/\.(spec|e2e)\.ts$/]
},
/* Embed files. */
{
test: /\.(html|css)$/,
loader: 'raw-loader',
exclude: /\.async\.(html|css)$/
},
/* Async loading. */
{
test: /\.async\.(html|css)$/,
loaders: ['file?name=[name].[hash].[ext]', 'extract']
}
]
}
Before
@Component({
selector: 'awesome-button',
template: 'button.template.html',
styles: ['button.style.css']
})
export class AwesomeButtonComponent { }
After (before it is bundled into your webpack'd application)
@Component({
selector: 'awesome-button',
template: require('./button.template.html'),
styles: [require('./button.style.css')]
})
export class AwesomeButtonComponent { }
How does it work
The angular2-template-loader
searches for templateUrl
and styleUrls
declarations inside of the Angular 2 Component metadata and replaces the paths with the corresponding require
statement.
If keepUrl=true
is added to the loader's query string, templateUrl
and styleUrls
will not be replaced by template
and style
respectively so you can use a loader like file-loader
.
The generated require
statements will be handled by the given loader for .html
and .js
files.
Common Issues
In some cases the webpack compilation will fail due to unknown require
statements in the source.
This is caused by the way the template loader works.
The Typescript transpiler doesn't have any typings for the
require
method, which was generated by the loader.
We recommend the installation of type defintions, which contain a declaration of the require
method.