1 files changed, 93 insertions, 15 deletions

diff --git a/packages/instant/webpack.config.js b/packages/instant/webpack.config.js
index 803240e76..a1db01db9 100644
--- a/packages/instant/webpack.config.js
+++ b/packages/instant/webpack.config.js
@@ -1,10 +1,16 @@
 const childProcess = require('child_process');
 const ip = require('ip');
 const path = require('path');
+const RollbarSourceMapPlugin = require('rollbar-sourcemap-webpack-plugin');
 const webpack = require('webpack');
 
+const GIT_SHA = childProcess
+    .execSync('git rev-parse HEAD')
+    .toString()
+    .trim();
+
 const DISCHARGE_TARGETS_THAT_REQUIRED_HEAP = ['production', 'staging', 'dogfood'];
-const getConfigForDischargeTarget = dischargeTarget => {
+const getHeapConfigForDischargeTarget = dischargeTarget => {
     return {
         heapAnalyticsIdEnvName:
             dischargeTarget === 'production'
@@ -14,14 +20,51 @@ const getConfigForDischargeTarget = dischargeTarget => {
     };
 };
 
-const GIT_SHA = childProcess
-    .execSync('git rev-parse HEAD')
-    .toString()
-    .trim();
-const generateConfig = (dischargeTarget, configOptions) => {
+const DISCHARGE_TARGETS_THAT_REQUIRE_ROLLBAR = ['production', 'staging', 'dogfood'];
+const getRollbarConfigForDischargeTarget = dischargeTarget => {
+    if (DISCHARGE_TARGETS_THAT_REQUIRE_ROLLBAR.includes(dischargeTarget)) {
+        const rollbarSourceMapPublicPath =
+            dischargeTarget === 'production'
+                ? 'https://instant.0xproject.com'
+                : `http://0x-instant-${dischargeTarget}.s3-website-us-east-1.amazonaws.com`;
+
+        return {
+            rollbarSourceMapPublicPath,
+            rollbarRequired: true,
+        };
+    }
+
+    return {
+        rollbarRequired: false,
+    };
+};
+
+const ROLLBAR_CLIENT_TOKEN_ENV_VAR_NAME = 'INSTANT_ROLLBAR_CLIENT_TOKEN';
+const ROLLBAR_PUBLISH_TOKEN_ENV_VAR_NAME = 'INSTANT_ROLLBAR_PUBLISH_TOKEN';
+const getRollbarTokens = (dischargeTarget, rollbarRequired) => {
+    const clientToken = process.env[ROLLBAR_CLIENT_TOKEN_ENV_VAR_NAME];
+    const publishToken = process.env[ROLLBAR_PUBLISH_TOKEN_ENV_VAR_NAME];
+
+    if (rollbarRequired) {
+        if (!clientToken) {
+            throw new Error(
+                `Rollbar client token required for ${dischargeTarget}, please set env var ${ROLLBAR_CLIENT_TOKEN_ENV_VAR_NAME}`,
+            );
+        }
+        if (!publishToken) {
+            throw new Error(
+                `Rollbar publish token required for ${dischargeTarget}, please set env var ${ROLLBAR_PUBLISH_TOKEN_ENV_VAR_NAME}`,
+            );
+        }
+    }
+
+    return { clientToken, publishToken };
+};
+
+const generateConfig = (dischargeTarget, heapConfigOptions, rollbarConfigOptions, nodeEnv) => {
     const outputPath = process.env.WEBPACK_OUTPUT_PATH || 'umd';
 
-    const { heapAnalyticsIdEnvName, heapAnalyticsIdRequired } = configOptions;
+    const { heapAnalyticsIdEnvName, heapAnalyticsIdRequired } = heapConfigOptions;
     const heapAnalyticsId = process.env[heapAnalyticsIdEnvName];
     if (heapAnalyticsIdRequired && !heapAnalyticsId) {
         throw new Error(
@@ -29,9 +72,26 @@ const generateConfig = (dischargeTarget, configOptions) => {
         );
     }
 
+    const rollbarTokens = getRollbarTokens(dischargeTarget, rollbarConfigOptions.rollbarRequired);
+    const rollbarEnabled =
+        rollbarTokens.clientToken && (nodeEnv !== 'development' || process.env.INSTANT_ROLLBAR_FORCE_DEVELOPMENT);
+
+    let rollbarPlugin;
+    if (rollbarConfigOptions.rollbarRequired) {
+        if (!rollbarEnabled || !rollbarTokens.publishToken || !rollbarConfigOptions.rollbarSourceMapPublicPath) {
+            throw new Error(`Rollbar required for ${dischargeTarget} but not configured`);
+        }
+        rollbarPlugin = new RollbarSourceMapPlugin({
+            accessToken: rollbarTokens.publishToken,
+            version: GIT_SHA,
+            publicPath: rollbarConfigOptions.rollbarSourceMapPublicPath,
+        });
+    }
+
     const envVars = {
         GIT_SHA: JSON.stringify(GIT_SHA),
         NPM_PACKAGE_VERSION: JSON.stringify(process.env.npm_package_version),
+        ROLLBAR_ENABLED: rollbarEnabled,
     };
     if (dischargeTarget) {
         envVars.INSTANT_DISCHARGE_TARGET = JSON.stringify(dischargeTarget);
@@ -39,6 +99,18 @@ const generateConfig = (dischargeTarget, configOptions) => {
     if (heapAnalyticsId) {
         envVars.HEAP_ANALYTICS_ID = JSON.stringify(heapAnalyticsId);
     }
+    if (rollbarTokens.clientToken) {
+        envVars.ROLLBAR_CLIENT_TOKEN = JSON.stringify(rollbarTokens.clientToken);
+    }
+
+    const plugins = [
+        new webpack.DefinePlugin({
+            'process.env': envVars,
+        }),
+    ];
+    if (rollbarPlugin) {
+        plugins.push(rollbarPlugin);
+    }
 
     const config = {
         entry: {
@@ -50,11 +122,7 @@ const generateConfig = (dischargeTarget, configOptions) => {
             library: 'zeroExInstant',
             libraryTarget: 'umd',
         },
-        plugins: [
-            new webpack.DefinePlugin({
-                'process.env': envVars,
-            }),
-        ],
+        plugins,
         devtool: 'source-map',
         resolve: {
             extensions: ['.js', '.json', '.ts', '.tsx'],
@@ -69,6 +137,15 @@ const generateConfig = (dischargeTarget, configOptions) => {
                     test: /\.svg$/,
                     loader: 'svg-react-loader',
                 },
+                {
+                    test: /\.js$/,
+                    loader: 'source-map-loader',
+                    exclude: [
+                        // instead of /\/node_modules\//
+                        path.join(process.cwd(), 'node_modules'),
+                        path.join(process.cwd(), '../..', 'node_modules'),
+                    ],
+                },
             ],
         },
         devServer: {
@@ -89,8 +166,9 @@ const generateConfig = (dischargeTarget, configOptions) => {
     return config;
 };
 
-module.exports = (env, _argv) => {
+module.exports = (env, argv) => {
     const dischargeTarget = env ? env.discharge_target : undefined;
-    const configOptions = getConfigForDischargeTarget(dischargeTarget);
-    return generateConfig(dischargeTarget, configOptions);
+    const heapConfigOptions = getHeapConfigForDischargeTarget(dischargeTarget);
+    const rollbarConfigOptions = getRollbarConfigForDischargeTarget(dischargeTarget);
+    return generateConfig(dischargeTarget, heapConfigOptions, rollbarConfigOptions, argv.mode);
 };