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+# vue-hot-reload-api
+
+> Note: `vue-hot-reload-api@2.x` only works with `vue@2.x`
+
+Hot reload API for Vue components. This is what [vue-loader](https://github.com/vuejs/vue-loader) and [vueify](https://github.com/vuejs/vueify) use under the hood.
+
+## Usage
+
+You will only be using this if you are writing some build toolchain based on Vue components. For normal application usage, just use `vue-loader` or `vueify`.
+
+``` js
+// define a component as an options object
+const myComponentOptions = {
+  data () { ... },
+  created () { ... },
+  render () { ... }
+}
+
+// assuming Webpack's HMR API.
+// https://webpack.js.org/guides/hot-module-replacement/
+if (module.hot) {
+  const api = require('vue-hot-reload-api')
+  const Vue = require('vue')
+
+  // make the API aware of the Vue that you are using.
+  // also checks compatibility.
+  api.install(Vue)
+
+  // compatibility can be checked via api.compatible after installation
+  if (!api.compatible) {
+    throw new Error('vue-hot-reload-api is not compatible with the version of Vue you are using.')
+  }
+
+  // indicate this module can be hot-reloaded
+  module.hot.accept()
+
+  if (!module.hot.data) {
+    // for each component option object to be hot-reloaded,
+    // you need to create a record for it with a unique id.
+    // do this once on startup.
+    api.createRecord('very-unique-id', myComponentOptions)
+  } else {
+    // if a component has only its template or render function changed,
+    // you can force a re-render for all its active instances without
+    // destroying/re-creating them. This keeps all current app state intact.
+    api.rerender('very-unique-id', myComponentOptions)
+
+    // --- OR ---
+
+    // if a component has non-template/render options changed,
+    // it needs to be fully reloaded. This will destroy and re-create all its
+    // active instances (and their children).
+    api.reload('very-unique-id', myComponentOptions)
+  }
+}
+```
+
+## License
+
+[MIT](http://opensource.org/licenses/MIT)