typescript

What this skill does

# Appwrite TypeScript SDK

## Installation

```bash
# Web
npm install appwrite

# React Native
npm install react-native-appwrite

# Node.js / Deno
npm install node-appwrite
```

## Setting Up the Client

### Client-side (Web / React Native)

```typescript
// Web
import { Client, Account, TablesDB, Storage, ID, Query } from 'appwrite';

// React Native
import { Client, Account, TablesDB, Storage, ID, Query } from 'react-native-appwrite';

const client = new Client()
    .setEndpoint('https://<REGION>.cloud.appwrite.io/v1')
    .setProject('[PROJECT_ID]');
```

### Server-side (Node.js / Deno)

```typescript
import { Client, Users, TablesDB, Storage, Functions, ID, Query } from 'node-appwrite';

const client = new Client()
    .setEndpoint('https://<REGION>.cloud.appwrite.io/v1')
    .setProject(process.env.APPWRITE_PROJECT_ID)
    .setKey(process.env.APPWRITE_API_KEY);
```

## Code Examples

### Authentication (client-side)

```typescript
const account = new Account(client);

// Email signup
await account.create({
    userId: ID.unique(),
    email: '[email protected]',
    password: 'password123',
    name: 'User Name'
});

// Email login
const session = await account.createEmailPasswordSession({
    email: '[email protected]',
    password: 'password123'
});

// OAuth login (Web)
account.createOAuth2Session({
    provider: OAuthProvider.Github,
    success: 'https://example.com/success',
    failure: 'https://example.com/fail',
    scopes: ['repo', 'user'] // optional — provider-specific scopes
});

// Get current user
const user = await account.get();

// Logout
await account.deleteSession({ sessionId: 'current' });
```

### OAuth 2 Login (React Native)

> **Important:** `createOAuth2Session()` does **not** work on React Native. You must use `createOAuth2Token()` with deep linking instead.

#### Setup

Install the required dependencies:

```bash
npx expo install react-native-appwrite react-native-url-polyfill
npm install expo-auth-session expo-web-browser expo-linking
```

Set the URL scheme in your `app.json`:

```json
{
  "expo": {
    "scheme": "appwrite-callback-[PROJECT_ID]"
  }
}
```

#### OAuth Flow

```typescript
import { Client, Account, OAuthProvider } from 'react-native-appwrite';
import { makeRedirectUri } from 'expo-auth-session';
import * as WebBrowser from 'expo-web-browser';

const client = new Client()
    .setEndpoint('https://<REGION>.cloud.appwrite.io/v1')
    .setProject('[PROJECT_ID]');

const account = new Account(client);

async function oauthLogin(provider: OAuthProvider) {
    // Create deep link that works across Expo environments
    const deepLink = new URL(makeRedirectUri({ preferLocalhost: true }));
    const scheme = `${deepLink.protocol}//`; // e.g. 'exp://' or 'appwrite-callback-[PROJECT_ID]://'

    // Get the OAuth login URL
    const loginUrl = await account.createOAuth2Token({
        provider,
        success: `${deepLink}`,
        failure: `${deepLink}`,
    });

    // Open browser and listen for the scheme redirect
    const result = await WebBrowser.openAuthSessionAsync(`${loginUrl}`, scheme);

    if (result.type !== 'success') return;

    // Extract credentials from the redirect URL
    const url = new URL(result.url);
    const secret = url.searchParams.get('secret');
    const userId = url.searchParams.get('userId');

    // Create session with the OAuth credentials
    await account.createSession({ userId, secret });
}

// Usage
await oauthLogin(OAuthProvider.Github);
await oauthLogin(OAuthProvider.Google);
```

### User Management (server-side)

```typescript
const users = new Users(client);

// Create user
const user = await users.create({
    userId: ID.unique(),
    email: '[email protected]',
    password: 'password123',
    name: 'User Name'
});

// List users
const list = await users.list({ queries: [Query.limit(25)] });

// Get user
const fetched = await users.get({ userId: '[USER_ID]' });

// Delete user
await users.delete({ userId: '[USER_ID]' });
```

### Database Operations

> **Note:** Use `TablesDB` (not the deprecated `Databases` class) for all new code. Only use `Databases` if the existing codebase already relies on it or the user explicitly requests it.
>
> **Tip:** Prefer the object-params calling style (e.g., `{ databaseId: '...' }`) for all SDK method calls. Only use positional arguments if the existing codebase already uses them or the user explicitly requests it.

```typescript
const tablesDB = new TablesDB(client);

// Create database (server-side only)
const db = await tablesDB.create({ databaseId: ID.unique(), name: 'My Database' });

// Create table (server-side only)
const col = await tablesDB.createTable({
    databaseId: '[DATABASE_ID]',
    tableId: ID.unique(),
    name: 'My Table'
});

// Create row
const doc = await tablesDB.createRow({
    databaseId: '[DATABASE_ID]',
    tableId: '[TABLE_ID]',
    rowId: ID.unique(),
    data: { title: 'Hello World', content: 'Example content' }
});

// List rows with query
const results = await tablesDB.listRows({
    databaseId: '[DATABASE_ID]',
    tableId: '[TABLE_ID]',
    queries: [Query.equal('status', 'active'), Query.limit(10)]
});

// Get row
const row = await tablesDB.getRow({
    databaseId: '[DATABASE_ID]',
    tableId: '[TABLE_ID]',
    rowId: '[ROW_ID]'
});

// Update row
await tablesDB.updateRow({
    databaseId: '[DATABASE_ID]',
    tableId: '[TABLE_ID]',
    rowId: '[ROW_ID]',
    data: { title: 'Updated Title' }
});

// Delete row
await tablesDB.deleteRow({
    databaseId: '[DATABASE_ID]',
    tableId: '[TABLE_ID]',
    rowId: '[ROW_ID]'
});
```

#### String Column Types

> **Note:** The legacy `string` type is deprecated. Use explicit column types for all new columns.

| Type | Max characters | Indexing | Storage |
|------|---------------|----------|---------|
| `varchar` | 16,383 | Full index (if size ≤ 768) | Inline in row |
| `text` | 16,383 | Prefix only | Off-page |
| `mediumtext` | 4,194,303 | Prefix only | Off-page |
| `longtext` | 1,073,741,823 | Prefix only | Off-page |

- `varchar` is stored inline and counts towards the 64 KB row size limit. Prefer for short, indexed fields like names, slugs, or identifiers.
- `text`, `mediumtext`, and `longtext` are stored off-page (only a 20-byte pointer lives in the row), so they don't consume the row size budget. `size` is not required for these types.

```typescript
// Create table with explicit string column types
await tablesDB.createTable({
    databaseId: '[DATABASE_ID]',
    tableId: ID.unique(),
    name: 'articles',
    columns: [
        { key: 'title',    type: 'varchar',    size: 255, required: true  },  // inline, fully indexable
        { key: 'summary',  type: 'text',                  required: false },  // off-page, prefix index only
        { key: 'body',     type: 'mediumtext',            required: false },  // up to ~4 M chars
        { key: 'raw_data', type: 'longtext',              required: false },  // up to ~1 B chars
    ]
});
```

#### TypeScript Generics

```typescript
import { Models } from 'appwrite';
// Server-side: import from 'node-appwrite'

// Define a typed interface for your row data
interface Todo {
    title: string;
    done: boolean;
    priority: number;
}

// listRows returns Models.DocumentList<Models.Document> by default
// Cast or use generics for typed results
const results = await tablesDB.listRows({
    databaseId: '[DATABASE_ID]',
    tableId: '[TABLE_ID]',
    queries: [Query.equal('done', false)]
});

// Each document includes built-in fields alongside your data
const doc = results.documents[0];
doc.$id;            // string — unique row ID
doc.$createdAt;     // string — ISO 8601 creation timestamp
doc.$updatedAt;     // string — ISO 8601 update timestamp
doc.$permissions;   // string[] — permission strings
doc.$databaseId;    // string
doc.$collectionId;  // string

// Common model types
// Models.User<Preferences>  — user account
// Models.Session             — auth session
// Models.File                — stora