powerbi-visuals-webpack-plugin

This plugin allows developing custom visuals by using webpack to build a visual package.

Provides following functionality:

Creates assets for developer server
Creates *.pbiviz package.

How to use the plugin

Plugin options

Plugin config description

  const defaultOptions = {
      visual: {
        name: "Visual name",
        displayName: "Visual name for displaying in visuals panel",
        guid: `Unique GUID for the visual (generated by plugin)`,
        visualClassName: "Visual class name, it is used by visual plugin to create instance of the visual",
        version: "Visual version",
        description: "Visual description",
        supportUrl: "URL for support"
    },
    author: "Author of the visual",
    apiVersion: "API version"
    capabilities: {
        // Visual capabilities
    },
    iconImage: "Icon file as base64 string",
    devMode: "development mode",
    packageOutPath: "location to create *.pbiviz file",
    generateResources: "it is used --resources flag in pbiviz tools",
    generatePbiviz: "it is used by --no-pbiviz flag in pbiviz tools"
  };

How to build a visual with webpack

Install all required libraries to build a visual

npm i webpack webpack-cli powerbi-visuals-webpack-plugin mini-css-extract-plugin webpack-bundle-analyzer extra-watch-webpack-plugin ts-loader json-loader less-loader less css-loader webpack-dev-server --save-dev

Install optional libraries to build JSX files

If you aren't going to build JSX files, then you can skip this step and delete all babel in section 5.
```
npm i @babel/preset-react @babel/runtime @babel/runtime-corejs3 @babel/core @babel/preset-env babel-loader --save-dev
```
Install the latest version of API package
```
npm i powerbi-visuals-api --save
```
Create SSL certificates (optional)

You need generate SSL certificates manually or copy files from powerbi-visuals-tools instance.

Read more about certificates in documentation.

Also, you can use certificates from powerbi-visuals-tools or use autogenerated certificates by webpack-dev-server. Just skip section 4 to use webpack-dev-server certificates.

4.1 Run the following command:
```
    npm i powerbi-visuals-tools@latest --save-dev
```
to install the latest version of tools

4.2 create script command to generate certificate.

Add into scripts section of package.json command "cert": "pbiviz --install-cert":
```
...
    "scripts": {
        "cert": "pbiviz --install-cert"
    },
...
```
Execute command npm run cert. You should get message:
```
    error  Certificate not found. The new certificate will be generated
    info   Certificate generated. Location is <visual root>\node_modules\powerbi-visuals-tools\certs\PowerBICustomVisualTest_public.pfx. Passphrase is '<YOUR_PASSPHRASE>'
```
Apply path node_modules\powerbi-visuals-tools\certs\PowerBICustomVisualTest_public.pfx in webpack.config.js at https section of devServer parameters:
```
...
    https: {
        pfx: fs.readFileSync(path.join(__dirname, `node_modules/powerbi-visuals-tools/certs/PowerBICustomVisualTest_public.pfx`)), // for windows
        passphrase: "<YOUR_PASSPHRASE>",
        requestCert: true
    },
...
```

Use sample of config webpack 5. (copy into webpack.config.js)

const path = require("path");

// webpack
const webpack = require("webpack");
const { PowerBICustomVisualsWebpackPlugin, LocalizationLoader } = require('powerbi-visuals-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer');
const ExtraWatchWebpackPlugin = require("extra-watch-webpack-plugin");

// api configuration
const powerbiApi = require("powerbi-visuals-api");

// visual configuration json path
const pbivizPath = "./pbiviz.json";
const pbivizFile = require(path.join(__dirname, pbivizPath));

// the visual capabilities content
const capabilitiesPath = "./capabilities.json";
const capabilities = require(path.join(__dirname, capabilitiesPath));

const pluginLocation = "./.tmp/precompile/visualPlugin.ts"; // Path to visual plugin file, the file generated by the webpack-plugin
const visualSourceLocation = "../../src/visual" // This path is used inside of the generated plugin, so it depends on pluginLocation
const statsLocation = "../../webpack.statistics.html";

const babelOptions = {
    presets: [
        [
            require.resolve('@babel/preset-env'),
            {
                "targets": {
                    "ie": "11"
                },
                useBuiltIns: "entry",
                corejs: 3,
                modules: false
            }
        ],
        "@babel/preset-react" // required for jsx files
    ],
    sourceType: "unambiguous", // tell to babel that the project can contains different module types, not only es2015 modules
    cacheDirectory: path.join(".tmp", "babelCache") // path for cache files
};

const isProduction = true
module.exports = {
    entry: {
        "visual.js": pluginLocation,
    },
    target: "web",
    devtool: "source-map",
    mode: isProduction ? "production" : "development",
    optimization: {
        minimize: isProduction, // enable minimization for create *.pbiviz file less than 2 Mb, can be disabled for dev mode
    },
    performance: {
        maxEntrypointSize: 1024000,
        maxAssetSize: 1024000
    },
    module: {
        rules: [
            {
                test: /\.tsx?$/,
                exclude: /node_modules/,
                include: /powerbi-visuals-|src|precompile(\\|\/)visualPlugin.ts/,
                use: [
                    {
                        loader: require.resolve('babel-loader'),
                        options: babelOptions
                    },
                    {
                        loader: "ts-loader",
                        options: {
                            transpileOnly: false,
                            experimentalWatchApi: false
                        }
                    }
                ],
            },
            {
                test: /(\.js)x|\.js$/,
                use: [
                    {
                        loader: require.resolve('babel-loader'),
                        options: babelOptions
                    }
                ]
            },
            {
                test: /\.json$/,
                loader: 'json-loader',
                type: "javascript/auto"
            },
            {
                test: /(\.less)|(\.css)$/,
                use: [
                    {
                        loader: MiniCssExtractPlugin.loader
                    },
                    {
                        loader: 'css-loader'
                    },
                    {
                        loader: 'less-loader',
                        options: {
                            lessOptions: {
                                paths: [path.resolve(__dirname, 'node_modules')]
                            }
                        }
                    }
                ]
            },
            {
                test: /\.(woff|ttf|ico|woff2|jpg|jpeg|png|webp|gif|svg|eot)$/i,
                type: 'asset/inline'
            },
            { 
                test: /powerbiGlobalizeLocales\.js$/,
                loader: LocalizationLoader
            }
        ],
    },
    externals: { "powerbi-visuals-api": "null" },
    resolve: {
        extensions: [".tsx", ".ts", ".jsx", ".js", ".css"],
    },
    output: {
        clean: true,
        path: path.join(__dirname, ".tmp", "drop"),
        publicPath: 'assets',
        filename: "[name]",
        library: pbivizFile.visual.guid,
        libraryTarget: "var",
    },
    devServer: {
        static: {
            directory: path.join(__dirname, ".tmp", "drop"), // path with assets generated by webpack plugin
            publicPath: '/assets/'
        },
        compress: true, // enable gzip compression
        port: 8080, // dev server port
        hot: false,
        server: { // cert files for dev server
            type: "https",
            options: {
                // keep it commented to use webpack generated certificate
                // key: path.join(__dirname, "certs","PowerBICustomVisualTest_public.key"), // for darwin, linux
                // cert: path.join(__dirname, "certs", "PowerBICustomVisualTest_public.cer"), // for darwin, linux
                // pfx: fs.readFileSync(path.join(__dirname, "certs", "PowerBICustomVisualTest_public.pfx")), // for windows

                // passphrase: "5031595470751755"
                // requestCert: true,
            }
        },
        headers: {
            "access-control-allow-origin": "*",
            "cache-control": "public, max-age=0",
        }
    },
    plugins: [
        new MiniCssExtractPlugin({
            filename: "visual.css",
            chunkFilename: "[id].css"
        }),
        new BundleAnalyzerPlugin({ // adds the ability to analyze the size of the bundle
            reportFilename: statsLocation,
            openAnalyzer: false,
            analyzerMode: `static`
        }),
        new PowerBICustomVisualsWebpackPlugin({ // custom visuals plugin instance with options
            ...pbivizFile,
            capabilities,
            visualSourceLocation,
            pluginLocation,
            apiVersion: powerbiApi.version,
            capabilitiesSchema: powerbiApi.schemas.capabilities,
            dependenciesSchema: powerbiApi.schemas.dependencies,
            devMode: false,
            generatePbiviz: true,
            generateResources: isProduction,
            modules: true,
            packageOutPath: path.join(__dirname, "dist"),
        }),
        new ExtraWatchWebpackPlugin({
            files: [pbivizPath, capabilitiesPath],
        }),
        new webpack.WatchIgnorePlugin({ // visual plugin regenerates with the visual source, but it does not require relaunching dev server
            paths: [
                path.join(__dirname, pluginLocation),
                "./.tmp/**/*.*",
                "./.tmp/**/**/*.*"
            ]
        }),
        new webpack.ProvidePlugin({
            define: "fakeDefine",
        }),
    ],
};

Add new script to build a visual package

Add new command "package": "webpack" into scripts section of package.json:
```
"scripts": {
    "cert": "pbiviz --install-cert",
    "package": "webpack"
}
```
Run npm run package command to create visual package.

Add webpack-dev-server package to debug custom visual

Install webpack-dev-server:

npm i webpack-dev-server --save-dev

Add command "start": "webpack serve" into scripts section of package.json :

"scripts": {
    "cert": "pbiviz --install-cert",
    "package": "webpack",
    "start": "webpack serve"
}

Run command npm run start to start dev server.

Contributing

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.microsoft.com.

When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.