<p align="center">A progressive <a href="http://nodejs.org" target="_blank">Node.js</a> framework for building efficient and scalable server-side applications.</p>
<a href="https://opencollective.com/nest#backer" target="_blank"><img src="https://opencollective.com/nest/backers/badge.svg" alt="Backers on Open Collective" /></a>
<a href="https://opencollective.com/nest#sponsor" target="_blank"><img src="https://opencollective.com/nest/sponsors/badge.svg" alt="Sponsors on Open Collective" /></a>
<a href="https://twitter.com/nestframework" target="_blank"><img src="https://img.shields.io/twitter/follow/nestframework.svg?style=social&label=Follow" alt="Follow us on Twitter"></a>
</p>
<!--[](https://opencollective.com/nest#backer)
[](https://opencollective.com/nest#sponsor)-->
When you're ready to deploy your NestJS application to production, there are some key steps you can take to ensure it runs as efficiently as possible. Check out the [deployment documentation](https://docs.nestjs.com/deployment) for more information.
If you are looking for a cloud-based platform to deploy your NestJS application, check out [Mau](https://mau.nestjs.com), our official platform for deploying NestJS applications on AWS. Mau makes deployment straightforward and fast, requiring just a few simple steps:
```bash
$ npm install -g @nestjs/mau
$ mau deploy
```
With Mau, you can deploy your application in just a few clicks, allowing you to focus on building features rather than managing infrastructure.
## Resources
Check out a few resources that may come in handy when working with NestJS:
- Visit the [NestJS Documentation](https://docs.nestjs.com) to learn more about the framework.
- For questions and support, please visit our [Discord channel](https://discord.gg/G7Qnnhy).
- To dive deeper and get more hands-on experience, check out our official video [courses](https://courses.nestjs.com/).
- Deploy your application to AWS with the help of [NestJS Mau](https://mau.nestjs.com) in just a few clicks.
- Visualize your application graph and interact with the NestJS application in real-time using [NestJS Devtools](https://devtools.nestjs.com).
- Need help with your project (part-time to full-time)? Check out our official [enterprise support](https://enterprise.nestjs.com).
- To stay in the loop and get updates, follow us on [X](https://x.com/nestframework) and [LinkedIn](https://linkedin.com/company/nestjs).
- Looking for a job, or have a job to offer? Check out our official [Jobs board](https://jobs.nestjs.com).
## Support
Nest is an MIT-licensed open source project. It can grow thanks to the sponsors and support by the amazing backers. If you'd like to join them, please [read more here](https://docs.nestjs.com/support).
- **Dashboard**: View high priority bids and today's bids
- **Date Filtering**:
- Click "3天" or "7天" buttons to filter bids from the last 3 or 7 days
- The filter only limits the start date, showing all data from the selected start date onwards (including data newer than the end date)
- **Keyword Filtering**: Filter bids by keywords (saved in localStorage)
- **All Bids**: View all bids with pagination and source filtering
- **Keyword Management**: Add and delete keywords with weight-based priority
### Backend Features
- **Multi-Source Crawling**: Crawls bidding information from multiple sources:
- ChdtpCrawler
- ChngCrawler
- SzecpCrawler
- CdtCrawler
- EpsCrawler
- CnncecpCrawler
- CgnpcCrawler
- CeicCrawler
- EspicCrawler
- PowerbeijingCrawler
- **Automatic Retry**: If a crawler returns 0 items, it will be retried after all crawlers complete
- **Proxy Support**: Configurable proxy settings via environment variables
- **Scheduled Tasks**: Automatic crawling at scheduled intervals
### Environment Variables
```env
# Database
DATABASE_TYPE=postgres
DATABASE_HOST=localhost
DATABASE_PORT=5432
DATABASE_USERNAME=your_username
DATABASE_PASSWORD=your_password
DATABASE_NAME=bidding
DATABASE_SYNCHRONIZE=true
# Proxy (optional)
PROXY_HOST=your_proxy_host
PROXY_PORT=your_proxy_port
PROXY_USERNAME=your_proxy_username
PROXY_PASSWORD=your_proxy_password
```
## Initial Setup
The system will automatically initialize with the preset keywords: "山东", "海", "建设", "工程", "采购". You can manage these and view crawled bidding information at http://localhost:3000.
