Day0 Browser Library

A powerful, stealthy browser automation library built on top of Playwright, designed to be easily integrated into NestJS applications.

Installation

npm install day0-browser-js

Usage

Import Module

Import the BrowserModule into your NestJS application's root module (or any other module):

import { Module } from '@nestjs/common';
import { BrowserModule } from 'day0-browser-js';

@Module({
  imports: [BrowserModule],
  // ...
})
export class AppModule {}

Use Service

Inject BrowserService into your services or controllers:

import { Injectable } from '@nestjs/common';
import { BrowserService } from 'day0-browser-js';

@Injectable()
export class AppService {
  constructor(private readonly browserService: BrowserService) {}

  async performTask() {
    const browser = await this.browserService.launchBrowser();

    // Optional: Pass custom fingerprint or proxy
    const context = await this.browserService.createContext(
      browser,
      myFingerprint,
      {
        server: 'http://proxy.com',
        username: 'user',
        password: 'pass',
      },
    );

    const page = await context.newPage();

    await this.browserService.applyStealth(page);

    await page.goto('https://example.com');
    // ... do something

    await this.browserService.closeBrowser();
  }
}

API Endpoint

The library also exposes a controller at POST /browser/launch which accepts:

{
  "timeout": 5000,
  "proxy": {
    "server": "http://proxy.example.com",
    "username": "user",
    "password": "pass"
  },
  "fingerprint": { ... }
}

Features

• Stealth Mode: Built-in fingerprinting and stealth techniques to evade detection.
• NestJS Integration: Ready-to-use Module and Service.
• Playwright Wrapper: Full access to underlying Playwright objects.