Add your app **name** and **Bundle ID**. You can find your **Bundle Identifier** in the **General** tab for your app's primary target in XCode. For Expo projects you can set or find it on **app.json** file at your project's root directory.
Add your app's **name** and **package name**, Your package name is generally the **applicationId** in your app-level **build.gradle** file. For Expo projects you can set or find it on **app.json** file at your project's root directory.
Once your SDK object is set, access any of the Appwrite services and choose any request to send. Full documentation for any service method you would like to use can be found in your SDK documentation or in the [API References](https://appwrite.io/docs) section.
The Appwrite React Native SDK provides type safety when working with database documents through generic methods. Methods like `listDocuments`, `getDocument`, and others accept a generic type parameter that allows you to specify your custom model type for full type safety.
console.log(`Book: ${book.name} by ${book.author}`); // Now you have full type safety
});
} catch (error) {
console.error('Appwrite error:', error);
}
```
**JavaScript (with JSDoc for type hints):**
```javascript
/**
*@typedef {Object} Book
*@property {string} name
*@property {string} author
*@property {string} [releaseYear]
*@property {string} [category]
*@property {string[]} [genre]
*@property {boolean} isCheckedOut
*/
const databases = new Databases(client);
try {
/** @type {Models.DocumentList<Book>} */
const documents = await databases.listDocuments(
'your-database-id',
'your-collection-id'
);
documents.documents.forEach(book => {
console.log(`Book: ${book.name} by ${book.author}`); // Type hints available in IDE
});
} catch (error) {
console.error('Appwrite error:', error);
}
```
**Tip**: You can use the `appwrite types` command to automatically generate TypeScript interfaces based on your Appwrite database schema. Learn more about [type generation](https://appwrite.io/docs/products/databases/type-generation).
### Error Handling
The Appwrite React Native SDK raises an `AppwriteException` object with `message`, `code` and `response` properties. You can handle any errors by catching the exception and present the `message` to the user or handle it yourself based on the provided error information. Below is an example.
```javascript
try {
const user = await account.create(ID.unique(), "email@example.com", "password", "Walter O'Brien");