import Link from 'next/link';
import { Callout, Steps, Tabs } from 'nextra/components';
import { DeviceIdWarning } from 'src/components/device-id-warning';
import { PersonalDataWarning } from 'src/components/personal-data-warning';

import SdkConfig from 'src/components/sdk-config.mdx';

# Javascript SDK

This is the base SDK for Openpanel. All other SDKs are built on top of this one.

## Installation

<Steps>
### Install dependencies

```bash
pnpm install @openpanel/sdk
```

### Initialize

```tsx
import { Openpanel } from '@openpanel/sdk';

const op = new Openpanel({
  url: 'https://api.openpanel.dev',
  clientId: '{YOUR_CLIENT_ID}',
  // mostly for backend and apps that can't rely on CORS
  clientSecret: '{YOUR_CLIENT_SECRET}',
});
```

#### Config

- `url` - The url of the openpanel API or your self-hosted instance
- `clientId` - The client id of your application
- `clientSecret` - The client secret of your application (mostly for backend and apps that can't rely on CORS)

### Ready!

You're now ready to use the library.

```typescript
// Sends an event with payload foo: bar
op.event('my_event', { foo: 'bar' });

// Identify with profile id
op.setProfileId('123');

// or with additional data
op.setProfile({
  profileId: '123',
  firstName: 'John',
  lastName: 'Doe',
  email: 'john.doe@openpanel.dev',
});

// Increment a property
op.increment('app_opened'); // increment by 1
op.increment('app_opened', 5); // increment by 5

// Decrement a property
op.decrement('app_opened'); // decrement by 1
op.decrement('app_opened', 5); // decrement by 5
```

</Steps>

## Usage

### Track event

```typescript
op.event('my_event', { foo: 'bar' });
```

### Identify

#### Set Profile Id

Keep track of your users by identifying them with a unique id. This is a good features if you have things behind a login and want to track user behavior.

<PersonalDataWarning />

```typescript
import { setProfileId } from '@openpanel/nextjs';

const profileId = '123';
setProfileId(profileId);
```

#### Additional data

This method does the same as `setProfileId` but also allows you to update the profile with additional data.

<PersonalDataWarning />

```typescript
import { setProfile } from '@openpanel/nextjs';

const profileId = '123';
setProfile({
  profileId,
  // firstName?: string;
  // lastName?: string;
  // email?: string;
  // avatar?: string;
  // properties?: Record<string, unknown>;
});
```

#### Increment property

Increment a property on the profile.

```typescript
import { increment } from '@openpanel/nextjs';

// Increment by 1
increment('app_opened');

// Increment by 5
increment('app_opened', 5);
```

#### Decrement property

Decrement a property on the profile.

```typescript
import { decrement } from '@openpanel/nextjs';

// Increment by 1
decrement('app_opened');

// Increment by 5
decrement('app_opened', 5);
```
