Skills
skills/cometchat/cometchat-skills/cometchat-native-bare-patterns

cometchat-native-bare-patterns

Installation
SKILL.md

Purpose

Teaches Claude how to integrate CometChat into a bare React Native CLI project. Covers:

  • Installing the full peer-dependency set + native-module autolinking
  • pod install cadence for iOS
  • Editing ios/<AppName>/Info.plist for iOS permissions
  • Editing android/app/src/main/AndroidManifest.xml for Android permissions
  • Android-specific async-storage Maven repo gotcha
  • Apple privacy manifest (ios/<AppName>/PrivacyInfo.xcprivacy) — required for App Store compliance
  • Wiring index.js + App.tsx with the provider chain

Read cometchat-native-core first (init/login/wrapper chain + anti-patterns), then cometchat-native-components, then cometchat-native-placement.

Ground truth: docs/ui-kit/react-native/react-native-cli-integration.mdx, apple-privacy-manifest-guide.mdx, react-native-conversation.mdx + react-native-one-to-one-chat.mdx + react-native-tab-based-chat.mdx, and examples/SampleApp/.

Use this skill when

  • Project has ios/ and android/ folders at the root
  • package.json main is index.js (classic RN entry)
  • No expo in package.json dependencies
  • User says "React Native CLI", "bare RN", "ejected Expo", or "custom native modules"

Do NOT use this skill when:

  • Project has expo in dependencies + app.json/app.config.js → use cometchat-native-expo-patterns
  • Project is Expo that's prebuilt into ios/ + android/ folders → this can go either way. If the user's workflow is "I edit app.json and run expo prebuild", stay on expo-patterns. If they've fully committed to bare (deleted app.json, edit Info.plist directly), this skill applies.

Prerequisites

  • Xcode 15+ for iOS (required for Apple privacy manifest)
  • Android Studio with SDK 34+
  • CocoaPods installed (brew install cocoapods on macOS)
  • react-native-cli or @react-native-community/cli usable via npx
  • React Native >=0.77 — older versions may work but are not officially supported by the UI Kit

Step 1 — Install dependencies

# Core SDK + UI Kit
npm install @cometchat/chat-sdk-react-native
npm install @cometchat/chat-uikit-react-native

# Required peer deps (natively linked)
npm install \
  @react-native-async-storage/async-storage \
  @react-native-clipboard/clipboard \
  @react-native-community/datetimepicker \
  react-native-gesture-handler \
  react-native-localize \
  react-native-safe-area-context \
  react-native-svg \
  react-native-video

# dayjs + punycode — no native code but required
npm install dayjs punycode

Bare RN uses autolinking, so no react-native link step is needed. Just confirm everything installed cleanly — if npm install errored mid-way, native modules won't be wired up correctly.

Optional — calling SDK

Only if the user's flow includes voice / video calls:

npm install \
  @cometchat/calls-sdk-react-native \
  @react-native-community/netinfo \
  react-native-background-timer \
  react-native-callstats \
  react-native-webrtc

WebRTC bloats the binary. Skip until the user actually wants calls.

Step 2 — iOS: pod install + Info.plist + PrivacyInfo

2a. Pod install

After every npm install of a native module (including the initial install above), run:

cd ios && pod install && cd ..

Without this, Xcode will fail to build with "module not found" errors for native classes. The warning signs:

  • No such module 'RNGestureHandler' during build
  • Undefined symbol: _OBJC_CLASS_$_RNCAsyncStorage during linking
  • Build succeeds but runtime crash: "TurboModuleRegistry.getEnforcing(...): 'RNAsyncStorage' could not be found"

If pod install fails, see cometchat-native-troubleshooting § iOS pod install failures.

2b. Info.plist permissions

Open ios/<AppName>/Info.plist and add:

<key>NSCameraUsageDescription</key>
<string>Allow camera access to send photos and make video calls</string>

<key>NSMicrophoneUsageDescription</key>
<string>Allow microphone access to send voice messages and make calls</string>

<key>NSPhotoLibraryUsageDescription</key>
<string>Allow photo library access to send photos</string>

<key>NSPhotoLibraryAddUsageDescription</key>
<string>Allow saving photos from chat to your library</string>

Permission-string best practice: the Usage strings show in the system prompt when iOS asks the user for permission — write them as user-facing copy, not developer notes. "Camera access for video calls" is fine; "for media upload" isn't a real reason a user would accept.

Merge, don't replace. The user may have existing permission strings for other libraries — add only what's missing, don't wipe the file.

2c. Apple Privacy Manifest — PrivacyInfo.xcprivacy

Required for App Store submission since iOS SDK 17 / Xcode 15. If it's missing or incomplete, App Store Connect rejects the upload.

Create ios/<AppName>/PrivacyInfo.xcprivacy with this exact content:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>NSPrivacyAccessedAPITypes</key>
    <array>
        <dict>
            <key>NSPrivacyAccessedAPIType</key>
            <string>NSPrivacyAccessedAPICategoryFileTimestamp</string>
            <key>NSPrivacyAccessedAPITypeReasons</key>
            <array>
                <string>C617.1</string>
            </array>
        </dict>
        <dict>
            <key>NSPrivacyAccessedAPIType</key>
            <string>NSPrivacyAccessedAPICategoryUserDefaults</string>
            <key>NSPrivacyAccessedAPITypeReasons</key>
            <array>
                <string>CA92.1</string>
            </array>
        </dict>
        <dict>
            <key>NSPrivacyAccessedAPIType</key>
            <string>NSPrivacyAccessedAPICategorySystemBootTime</string>
            <key>NSPrivacyAccessedAPITypeReasons</key>
            <array>
                <string>35F9.1</string>
            </array>
        </dict>
        <dict>
            <key>NSPrivacyAccessedAPIType</key>
            <string>NSPrivacyAccessedAPICategoryDiskSpace</string>
            <key>NSPrivacyAccessedAPITypeReasons</key>
            <array>
                <string>E174.1</string>
            </array>
        </dict>
    </array>
    <key>NSPrivacyCollectedDataTypes</key>
    <array/>
    <key>NSPrivacyTracking</key>
    <false/>
</dict>
</plist>

These 4 reason codes cover the native APIs React Native itself + the UI Kit's react-native-video dependency use:

API category Reason code What it's for
NSPrivacyAccessedAPICategoryFileTimestamp C617.1 File-modified timestamps (RN bundler)
NSPrivacyAccessedAPICategoryUserDefaults CA92.1 AsyncStorage (UserDefaults backend on iOS)
NSPrivacyAccessedAPICategorySystemBootTime 35F9.1 Uptime for scheduling (RN + video cache)
NSPrivacyAccessedAPICategoryDiskSpace E174.1 Free-space check (media upload guard)

After adding:

  1. Open ios/<AppName>.xcworkspace in Xcode
  2. Right-click the app folder in the navigator → "Add Files to "<AppName>""
  3. Select PrivacyInfo.xcprivacy — make sure "Add to targets: <AppName>" is checked
  4. Rebuild

If the user already has a PrivacyInfo.xcprivacy, merge the 4 API types into their existing NSPrivacyAccessedAPITypes array — don't replace the whole file.

2d. Install pods after Info.plist / PrivacyInfo changes

cd ios && pod install && cd ..

Step 3 — Android: AndroidManifest + Maven repo

3a. AndroidManifest permissions

Open android/app/src/main/AndroidManifest.xml and add inside <manifest> (before <application>):

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.VIBRATE" />

<!-- Android 12 and below -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="32" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="32" />

<!-- Android 13+ (API 33+) -->
<uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />
<uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
<uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />

Merge, don't replace. Keep the user's existing permissions for other libraries.

3b. Android: async-storage Maven repo (REQUIRED)

@react-native-async-storage/async-storage v3+ ships a local Maven artifact that autolinking can't find by default. Without this fix, ./gradlew assembleDebug fails with:

Could not find :react-native-async-storage_async-storage: on any of the paths.

Add the local Maven repo to android/build.gradle:

allprojects {
    repositories {
        google()
        mavenCentral()
        // Required for @react-native-async-storage/async-storage v3+
        maven {
            url = uri(project(":react-native-async-storage_async-storage").file("local_repo"))
        }
    }
}

Without this fix, the whole Android build fails early. This is a UI Kit-specific gotcha because the kit pins async-storage v3+.

3c. Android: Metro config for custom fonts or assets (if applicable)

If the project uses custom icon fonts or bundled assets, confirm react-native.config.js includes:

module.exports = {
  assets: ["./src/assets/fonts/"],   // only if the user has custom fonts
};

Run npx react-native-asset to link. Not required for the UI Kit itself — only relevant if the user extends with custom icons.

Step 4 — Wire index.js + App.tsx with the provider chain

4a. index.js — gesture handler FIRST

// index.js
import "react-native-gesture-handler";   // MUST be the first import
import { AppRegistry } from "react-native";
import App from "./App";
import { name as appName } from "./app.json";

AppRegistry.registerComponent(appName, () => App);

The react-native-gesture-handler import must be line 1. Not line 2. Not after React. Without it, swipe gestures on the composer and bottom sheets silently break — often only in release builds, which makes it hard to catch during development.

4b. App.tsx — provider wrapper chain

// App.tsx
import React from "react";
import { GestureHandlerRootView } from "react-native-gesture-handler";
import { SafeAreaProvider } from "react-native-safe-area-context";
import { CometChatThemeProvider } from "@cometchat/chat-uikit-react-native";
import { CometChatProvider } from "./src/providers/CometChatProvider";
import { AppNavigator } from "./src/navigation/AppNavigator";
import Config from "react-native-config";  // or read from an env source

export default function App() {
  return (
    <GestureHandlerRootView style={{ flex: 1 }}>
      <SafeAreaProvider>
        <CometChatThemeProvider>
          <CometChatProvider
            appId={Config.COMETCHAT_APP_ID!}
            region={Config.COMETCHAT_REGION!}
            authKey={Config.COMETCHAT_AUTH_KEY!}
            uid="cometchat-uid-1"   // dev mode only
          >
            <AppNavigator />
          </CometChatProvider>
        </CometChatThemeProvider>
      </SafeAreaProvider>
    </GestureHandlerRootView>
  );
}

The CometChatProvider itself lives in src/providers/CometChatProvider.tsx per cometchat-native-core § 6 — reuse that implementation.

Step 5 — Env vars

Bare RN has no built-in env var system. Pick one:

Option A — react-native-config (most common)

npm install react-native-config
cd ios && pod install && cd ..

Create .env at project root:

COMETCHAT_APP_ID=your_app_id
COMETCHAT_REGION=us
COMETCHAT_AUTH_KEY=your_auth_key

Read via:

import Config from "react-native-config";
const appId = Config.COMETCHAT_APP_ID;

iOS post-setup: Xcode needs to know about the .env file. Either use react-native-config's Xcode build-phase script (documented in its README) or create a .xcconfig file. Without this, Config.* returns undefined on iOS.

Option B — babel-plugin-dotenv-import

Simpler but less mature. Only if the user's already picked this.

Option C — hardcoded constants (NEVER for production)

For a quick dev-mode proof-of-concept only, just declare the values as constants in a dedicated config file:

// src/config/cometchat.ts
export const CONFIG = {
  APP_ID: "YOUR_APP_ID",
  REGION: "us",
  AUTH_KEY: "YOUR_AUTH_KEY",
};

Add src/config/cometchat.ts to .gitignore. Obviously do not commit real credentials.

Never put REST_API_KEY in the client

The REST API key is server-only. Production user management + auth token minting happens on a backend you control — see cometchat-native-production.

Step 6 — Run + verify

First run

# iOS
npx react-native run-ios

# Android
npx react-native run-android

First build takes several minutes. Subsequent runs with the Metro bundler already running are fast.

Verify

  1. npx tsc --noEmit — TypeScript check
  2. Open the chat screen in the simulator
  3. Tap the composer — keyboard should open smoothly
  4. Tap the "+" attachment button — action sheet should slide up (gesture handler)
  5. Send a message — it should appear immediately

If any of these fail, see cometchat-native-troubleshooting.

Re-run cadence

Change Command
JSX / TS changes Fast Refresh handles it; r in Metro to reload
Added / removed a dep without native code Restart Metro
Added / removed a native module cd ios && pod install && cd .. then run-ios
Changed Info.plist run-ios (Xcode picks up changes)
Changed AndroidManifest.xml run-android
Changed android/build.gradle ./gradlew clean then run-android

Hard rules

  1. pod install is mandatory after every native dep change. Missing this → build fails with "module not found" or crashes at runtime with "TurboModuleRegistry could not find X".

  2. import "react-native-gesture-handler" is the FIRST line of index.js. Before React. Before any other import. Missing → swipe gestures silently break (often only in release builds).

  3. Android requires the local Maven repo entry for @react-native-async-storage/async-storage v3+ (see § 3b). Without it, the Android build fails at the assembly step.

  4. The Apple Privacy Manifest is required for App Store submission. Skip it and your app gets rejected. Either create PrivacyInfo.xcprivacy (§ 2c) or merge the 4 API types into an existing one.

  5. Merge permissions into Info.plist and AndroidManifest.xml, don't replace. Wiping out the user's existing permissions breaks their other features.

  6. The four-wrapper chain is at the app root (App.tsx), not per-screen. Re-wrapping per screen causes duplicate init + login, dropped WebSockets, and a 2-3 second flicker on first mount.

  7. REST_API_KEY is never in the client. Use an external backend for token minting — see cometchat-native-production.

  8. Every <CometChatMessageList> must include hideReplyInThreadOption unless you're wiring a full thread panel (see cometchat-native-placement § Hard rule 5).

Common questions

Q: "TurboModuleRegistry.getEnforcing(...): 'RNAsyncStorage' could not be found" Forgot pod install. Run cd ios && pod install && cd .. then rebuild.

Q: Android build fails with "Could not find :react-native-async-storage_async-storage:" See § 3b — add the local Maven repo entry to android/build.gradle.

Q: App Store rejected the build with "ITMS-91053: Missing API declaration" Apple Privacy Manifest is incomplete. Use the full 4-API-type declaration in § 2c.

Q: Composer swipe gestures don't work in production import "react-native-gesture-handler" isn't the first line of index.js. Move it above all other imports.

Q: CometChatUIKit.login({uid: "..."}) resolves but components don't render You're probably rendering before init() completes. Gate rendering on CometChatProvider's isReady state — see cometchat-native-core § 6.

Q: I want to support Expo AND bare in the same codebase Use Expo + npx expo prebuild to generate native projects on demand. Stay on cometchat-native-expo-patterns.

Skill routing reference

Skill When to route
cometchat-native-core Init / login / wrapper chain / anti-patterns
cometchat-native-components Component prop reference
cometchat-native-placement Where chat goes (stack / tabs / modal / bottom sheet / embedded)
cometchat-native-expo-patterns Expo managed workflow
cometchat-native-bare-patterns This skill — bare RN CLI
cometchat-native-features Calls, extensions, AI
cometchat-native-theming Theme customization
cometchat-native-customization Text formatters, events, custom views
cometchat-native-production Server-side auth tokens + user management
cometchat-native-troubleshooting pod install fails, build errors, missing modules, privacy manifest rejection
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