--- title: "Components" draft: false weight: 3 --- Some of the UI elements in Hue are available as generic [Web Components](https://developer.mozilla.org/en-US/docs/Web/Web_Components). They are library/framework agnostic, and can be used in any web project irrespective of what its built upon - React, Angular, Ember or something else. They can be imported as classic JavaScript modules for your own development needs. ## Component list * [SQL Parsers](/developer/components/parsers) * [ER-diagram](/developer/components/er-diagram) * [SQL Scratchpad](/developer/components/scratchpad) ## Importing There are two ways to get them: ### NPM registry Published as a NPM package in https://www.npmjs.com/package/gethue. You do not need a dependency on a complete local Hue project. To run the [demo app](https://github.com/cloudera/hue/tree/master/tools/examples/api/hue_dep) make the following changes: 1. Install gethue NPM package npm install --save gethue 2. In [package.json](https://github.com/cloudera/hue/blob/master/tools/examples/api/hue_dep/package.json), remove `"hue": "file:../../../.."` without touching the newly added gethue dependency 3. In [src/app.js](https://github.com/cloudera/hue/blob/master/tools/examples/api/hue_dep/src/app.js), change the import line to: import sqlAutocompleteParser from 'gethue/lib/parsers/hiveAutocompleteParser'; 4. In [webpack.config.js](https://github.com/cloudera/hue/blob/master/tools/examples/api/hue_dep/webpack.config.js): - Change `'js'` to `'node_modules/gethue'` under `resolve.modules` - Remove `exclude: /node_modules/,` from `babel-loader` ### Local repository Checkout Hue and cd to the [demo app](https://github.com/cloudera/hue/tree/master/tools/examples/api/hue_dep). Steps are similar if you would like to use your own app instead of the demo app. cd tools/examples/api/hue_dep npm install npm run webpack npm run app In hue_dep `package.json` there is a dependency on Hue: "dependencies": { "hue": "file:../../.." }, Now let's import the Hive parser: import sqlAutocompleteParser from 'hue/desktop/core/src/desktop/js/parse/sql/hive/hiveAutocompleteParser'; ## Using Here is an example on how to use the er-diagram component once installed: ### Import er-diagram can be imported into an html file using a simple script tag as follows. If you are using a bundler like webpack. They can be imported using a normal import statement. import 'gethue/lib/components/ErDiagram'; ### Instantiate Once imported they can be used like a native HTML tag. Please refer these [demo apps](https://github.com/cloudera/hue/tree/master/tools/examples/components) for examples on how the components can be used. You must be able to directly pass attributes, and listen to custom and native events. ### Use as a Vue Component Internally these components are created using Vue.js & TypeScript. So you can even use them as plain Vue component, and take advantage of Vue features. Vue version of the components are under `gethue/components`. import ERDiagram from 'gethue/components/er-diagram/index.vue';