> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/ailtonvivaz/react-native-beagle/llms.txt
> Use this file to discover all available pages before exploring further.

# BeagleLog

> Abstract base class for all log entries in React Native Beagle

`BeagleLog` is the abstract base class that all log types extend. It provides core functionality for log entries including identification, timestamps, messages, and filtering.

## Properties

<ResponseField name="id" type="string" required>
  Unique identifier for the log entry. Auto-generated using nanoid(6) if not provided.
</ResponseField>

<ResponseField name="time" type="Date" required>
  Timestamp when the log was created. Automatically set to `new Date()` during construction.
</ResponseField>

<ResponseField name="message" type="string" required>
  The log message content.
</ResponseField>

<ResponseField name="level" type="LogLevel" default="info">
  The severity level of the log. Can be one of: `'loading'`, `'info'`, `'warning'`, `'error'`, or `'success'`.
</ResponseField>

## Constructor

<ParamField path="message" type="string" required>
  The log message content.
</ParamField>

<ParamField path="level" type="LogLevel" default="info">
  Optional severity level. One of: `'loading'` | `'info'` | `'warning'` | `'error'` | `'success'`.
</ParamField>

<ParamField path="id" type="string">
  Optional custom ID. If not provided, a unique 6-character ID is generated automatically.
</ParamField>

## Methods

### filter()

Filters the log based on a search query.

<ParamField path="query" type="string" required>
  The search query to filter by.
</ParamField>

**Returns:** `boolean` - `true` if the log's message contains the query (case-insensitive), `false` otherwise.

```typescript theme={null}
const log = new MessageLog('User logged in successfully');
log.filter('logged'); // true
log.filter('error'); // false
```

## Type Definitions

```typescript theme={null}
type LogLevel = 'loading' | 'info' | 'warning' | 'error' | 'success';

abstract class BeagleLog {
  id: string;
  time: Date;
  message: string;
  level: LogLevel;

  constructor(message: string, level?: LogLevel, id?: string);
  filter(query: string): boolean;
}
```