### Install CocoaPods Dependencies

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/example/README.md

Installs the necessary dependencies for iOS development using CocoaPods. This is typically run once when setting up the project or after updating native dependencies.

```sh
# Install CocoaPods itself (if not already installed)
bundle install

# Install project-specific dependencies
bundle exec pod install
```

--------------------------------

### Start Metro Bundler

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/example/README.md

Starts the Metro JavaScript bundler, which is essential for running React Native applications. This command should be executed from the root of your React Native project.

```sh
# Using npm
npm start

# OR using Yarn
yarn start
```

--------------------------------

### Run Android App

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/example/README.md

Builds and runs the React Native application on an Android device or emulator. This command is executed after the Metro bundler has started.

```sh
# Using npm
npm run android

# OR using Yarn
yarn android
```

--------------------------------

### Install react-native-create-thumbnail

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/README.md

Instructions for installing the library using npm or yarn package managers.

```bash
npm i react-native-create-thumbnail

or

yarn add react-native-create-thumbnail
```

--------------------------------

### Run iOS App

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/example/README.md

Builds and runs the React Native application on an iOS simulator or device. This command requires that CocoaPods dependencies have been installed.

```sh
# Using npm
npm run ios

# OR using Yarn
yarn ios
```

--------------------------------

### Configure Android SDK and NDK (`local.properties`)

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/android/README.md

Specifies the paths to the Android SDK and NDK installations required for building the library. This file is crucial for Gradle to locate the necessary build tools.

```Properties
ndk.dir=/Users/{username}/Library/Android/sdk/ndk-bundle
sdk.dir=/Users/{username}/Library/Android/sdk
```

--------------------------------

### Generate Thumbnail Usage

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/README.md

Example of how to use the `createThumbnail` function to generate a thumbnail from a video file, including basic error handling.

```javascript
import { createThumbnail } from "react-native-create-thumbnail";

createThumbnail({
  url: '<path to video file>',
  timeStamp: 10000,
})
  .then(response => console.log({ response }))
  .catch(err => console.log({ err }));
```

--------------------------------

### Publish Library as Maven Dependency

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/android/README.md

Command to install the library archives into the local Maven repository. This step is part of the process to publish the library as a Maven dependency.

```Shell
./gradlew installArchives
```

--------------------------------

### Create Thumbnail API Documentation

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/README.md

Detailed documentation for the `createThumbnail` function, outlining its request parameters, their types, defaults, and descriptions, including platform-specific options.

```APIDOC
createThumbnail(options)
  - Generates a thumbnail image from a video file.

  Parameters:
    options: Object (required)
      - url: String (required)
        Path to video file (local or remote).
      - timeStamp: Number (optional, default: 0)
        Thumbnail timestamp in milliseconds.
      - format: String (optional, default: 'jpeg')
        Thumbnail format, can be 'jpeg' or 'png'.
      - maxWidth: Number (optional, default: 512)
        Maximum thumbnail width in pixels.
      - maxHeight: Number (optional, default: 512)
        Maximum thumbnail height in pixels.
      - dirSize: Number (optional, default: 100)
        Maximum size of the cache directory in megabytes. When full, older thumbnails are deleted.
      - headers: Object (optional)
        Headers to load the video with, e.g., { Authorization: 'someAuthToken' }.
      - cacheName: String (optional)
        Cache name to avoid duplicate generation. If a thumbnail with this name exists, it's returned.
      - timeToleranceMs: Number (optional, default: 2000, Only iOS)
        Time tolerance in ms for the system to pick the best matching video frame.
      - onlySyncedFrames: Boolean (optional, default: true, Only Android)
        For Android: If true, retrieves a sync frame closest to the timestamp. If false, retrieves any frame closest to the timestamp.

  Returns:
    Promise<Object>
      - path: String
        Path to the generated thumbnail.
      - size: Number
        Size (in bytes) of the thumbnail.
      - mime: String
        Mimetype of the thumbnail.
      - width: Number
        Thumbnail width.
      - height: Number
        Thumbnail height.
```

--------------------------------

### Link Native Code

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/README.md

Steps to link the native module for React Native projects, covering autolinking for newer versions and manual linking for older ones.

```bash
cd ios && pod install

# For pre 0.60 versions:
react-native link react-native-create-thumbnail
```

--------------------------------

### Android Permissions

Source: https://github.com/souvik-ghosh/react-native-create-thumbnail/blob/master/README.md

Required Android permissions for accessing storage to read and write video files for thumbnail generation.

```bash
READ_EXTERNAL_STORAGE
WRITE_EXTERNAL_STORAGE
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.