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webpack.config.js
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webpack.config.js
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const path = require("path");
const webpack = require("webpack");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const TerserPlugin = require("terser-webpack-plugin");
const CopyPlugin = require("copy-webpack-plugin");
function initCanisterEnv() {
let localCanisters, prodCanisters;
try {
localCanisters = require(path.resolve(
".dfx",
"local",
"canister_ids.json"
));
} catch (error) {
console.log("No local canister_ids.json found. Continuing production");
}
try {
prodCanisters = require(path.resolve("canister_ids.json"));
} catch (error) {
console.log("No production canister_ids.json found. Continuing with local");
}
const network =
process.env.DFX_NETWORK ||
(process.env.NODE_ENV === "production" ? "ic" : "local");
const canisterConfig = network === "local" ? localCanisters : prodCanisters;
return Object.entries(canisterConfig).reduce((prev, current) => {
const [canisterName, canisterDetails] = current;
prev[canisterName.toUpperCase() + "_CANISTER_ID"] =
canisterDetails[network];
return prev;
}, {});
}
const canisterEnvVariables = initCanisterEnv();
const isDevelopment = process.env.NODE_ENV !== "production";
const frontendDirectory = "dbank_frontend";
const frontend_entry = path.join("src", frontendDirectory, "src", "index.html");
module.exports = {
target: "web",
mode: isDevelopment ? "development" : "production",
entry: {
// The frontend.entrypoint points to the HTML file for this build, so we need
// to replace the extension to `.js`.
index: path.join(__dirname, frontend_entry).replace(/\.html$/, ".js"),
},
devtool: isDevelopment ? "source-map" : false,
optimization: {
minimize: !isDevelopment,
minimizer: [new TerserPlugin()],
},
resolve: {
extensions: [".js", ".ts", ".jsx", ".tsx"],
fallback: {
assert: require.resolve("assert/"),
buffer: require.resolve("buffer/"),
events: require.resolve("events/"),
stream: require.resolve("stream-browserify/"),
util: require.resolve("util/"),
},
},
output: {
filename: "index.js",
path: path.join(__dirname, "dist", frontendDirectory),
},
// Depending in the language or framework you are using for
// front-end development, add module loaders to the default
// webpack configuration. For example, if you are using React
// modules and CSS as described in the "Adding a stylesheet"
// tutorial, uncomment the following lines:
// module: {
// rules: [
// { test: /\.(ts|tsx|jsx)$/, loader: "ts-loader" },
// { test: /\.css$/, use: ['style-loader','css-loader'] }
// ]
// },
plugins: [
new HtmlWebpackPlugin({
template: path.join(__dirname, frontend_entry),
cache: false,
}),
new webpack.EnvironmentPlugin({
NODE_ENV: "development",
...canisterEnvVariables,
}),
new webpack.ProvidePlugin({
Buffer: [require.resolve("buffer/"), "Buffer"],
process: require.resolve("process/browser"),
}),
new CopyPlugin({
patterns: [
{
from: `src/${frontendDirectory}/src/.ic-assets.json*`,
to: ".ic-assets.json5",
noErrorOnMissing: true
},
],
}),
],
// proxy /api to port 8000 during development.
// if you edit dfx.json to define a project-specific local network, change the port to match.
devServer: {
proxy: {
"/api": {
target: "http://127.0.0.1:8000",
changeOrigin: true,
pathRewrite: {
"^/api": "/api",
},
},
},
static: path.resolve(__dirname, "src", frontendDirectory, "assets"),
hot: true,
watchFiles: [path.resolve(__dirname, "src", frontendDirectory)],
liveReload: true,
},
};