Fix regression that made the SDK unusable in React Native apps (#52)

* Fix regression that made the SDK unusable in React Native apps

* Add React Native sample app

* npm audit fix

* Bump version

.vscode/launch.json

@@ -0,0 +1,18 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+      {
+        "name": "Debug Tests",
+        "type": "node",
+        "request": "launch",
+        "runtimeExecutable": "${workspaceRoot}/node_modules/.bin/react-scripts",
+        "args": ["test", "--runInBand", "--no-cache", "--watchAll=false"],
+        "cwd": "${workspaceRoot}",
+        "protocol": "inspector",
+        "console": "integratedTerminal",
+        "internalConsoleOptions": "neverOpen",
+        "env": { "CI": "true" },
+        "disableOptimisticBPs": true
+      }
+    ]
+  }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "configcat-react",
-  "version": "4.5.0",
+  "version": "4.6.0",
   "scripts": {
     "build": "npm run build:esm && npm run build:cjs",
     "build:esm": "tsc -p tsconfig.build.esm.json && gulp esm",

samples/next-js-sample/package.json

@@ -9,7 +9,7 @@
     "lint": "next lint"
   },
   "dependencies": {
-    "configcat-react": "4.5.0",
+    "configcat-react": "^4.5.0",
     "next": "14.1.4",
     "react": "^18",
     "react-dom": "^18"

samples/react-native-sample/.gitignore

@@ -0,0 +1,35 @@
+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
+
+# dependencies
+node_modules/
+
+# Expo
+.expo/
+dist/
+web-build/
+
+# Native
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
+
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# macOS
+.DS_Store
+*.pem
+
+# local env files
+.env*.local
+
+# typescript
+*.tsbuildinfo

samples/react-native-sample/App.tsx

@@ -0,0 +1,28 @@
+import { ConfigCatProvider, LogLevel, createConsoleLogger, withConfigCatClient } from 'configcat-react';
+import { StatusBar } from 'expo-status-bar';
+import { StyleSheet, Text, View } from 'react-native';
+import ButtonClassComponent from './ConfigCatHOC';
+import ButtonFunctionComponent from './ConfigCatHook';
+
+const ConfigCatButtonClassComponent = withConfigCatClient(ButtonClassComponent);
+
+export default function App() {
+  return (
+    <ConfigCatProvider sdkKey="zVPVCO5_LS9VnDcpIDE84g/zVPVCBScEzDn-VNq0dnYog" options={{logger: createConsoleLogger(LogLevel.Info)}}>
+      <View style={styles.container}>
+        <ConfigCatButtonClassComponent text={"Feature Enabled (with HOC)"} />
+        <ButtonFunctionComponent text={"Feature Enabled (with HOOKS)"} />
+        <StatusBar style="auto" />
+      </View>
+    </ConfigCatProvider>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: '#fff',
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+});

samples/react-native-sample/ConfigCatHOC.tsx

@@ -0,0 +1,43 @@
+import React from "react";
+import { WithConfigCatClientProps } from "configcat-react";
+import { Button, Text, View } from "react-native";
+
+class ButtonClassComponent extends React.Component<
+  { text: string } & WithConfigCatClientProps,
+  { isEnabled: boolean, loading: boolean }
+> {
+  constructor(props: { text: string } & WithConfigCatClientProps) {
+    super(props);
+
+    this.state = { isEnabled: false, loading: true };
+  }
+
+  componentDidUpdate(prevProps: any) {
+    // To achieve hot reload on config.json updates.
+    if (prevProps?.lastUpdated !== this.props.lastUpdated) {
+      this.evaluateFeatureFlag();
+    }
+  }
+
+  componentDidMount() {
+    this.evaluateFeatureFlag();
+  }
+
+  evaluateFeatureFlag() {
+    this.props
+      .getValue("isAwesomeFeatureEnabled", false)
+      .then((v: boolean) => this.setState({ isEnabled: v, loading: false }));
+  }
+
+  render() {
+    return this.state.loading
+      ? (<View style={{marginTop: 10, marginBottom: 10}}><Text>Loading...</Text></View>)
+      : (
+        <View style={{marginTop: 10, marginBottom: 10}}>
+          <Button disabled={!this.state.isEnabled} onPress={() => alert("ConfigCat <3 React")} title={this.props.text} />
+        </View>
+      );
+  }
+}
+
+export default ButtonClassComponent;

samples/react-native-sample/ConfigCatHook.tsx

@@ -0,0 +1,18 @@
+import React from "react";
+import { useFeatureFlag } from "configcat-react";
+import { Button, Text, View } from "react-native";
+
+const ButtonFunctionComponent: React.FunctionComponent<{ text: string }> = ({
+  text,
+}) => {
+  const { value: isEnabled, loading } = useFeatureFlag("isAwesomeFeatureEnabled", false);
+  return loading
+  ? (<View style={{marginTop: 10, marginBottom: 10}}><Text>Loading...</Text></View>)
+  : (
+    <View style={{marginTop: 10, marginBottom: 10}}>
+      <Button disabled={!isEnabled} onPress={() => alert("ConfigCat <3 React")} title={text} />
+    </View>
+  );
+};
+
+export default ButtonFunctionComponent;

samples/react-native-sample/app.json

@@ -0,0 +1,30 @@
+{
+  "expo": {
+    "name": "react-native-sample",
+    "slug": "react-native-sample",
+    "version": "1.0.0",
+    "orientation": "portrait",
+    "icon": "./assets/icon.png",
+    "userInterfaceStyle": "light",
+    "splash": {
+      "image": "./assets/splash.png",
+      "resizeMode": "contain",
+      "backgroundColor": "#ffffff"
+    },
+    "assetBundlePatterns": [
+      "**/*"
+    ],
+    "ios": {
+      "supportsTablet": true
+    },
+    "android": {
+      "adaptiveIcon": {
+        "foregroundImage": "./assets/adaptive-icon.png",
+        "backgroundColor": "#ffffff"
+      }
+    },
+    "web": {
+      "favicon": "./assets/favicon.png"
+    }
+  }
+}

samples/react-native-sample/babel.config.js

@@ -0,0 +1,6 @@
+module.exports = function(api) {
+  api.cache(true);
+  return {
+    presets: ['babel-preset-expo'],
+  };
+};