Required Installations

• NestJS
• Mongoose

Initial Configuration

1. Comment out the line that enables CORS in the production server to allow local consumption in the file src/main.ts:

   // Comment this line:
   origin: ['https://chesscolate.com', 'https://www.chesscolate.com'],

Generating Puzzle Files from Lichess .csv

Step 1: Load Puzzles into MongoDB

1. Place the .csv file in the assets folder with the name puzzles_upload.csv.
2. Uncomment the uploadPuzzles method in the service puzzles.service.ts and the necessary imports.
3. Uncomment the necessary imports and configurations to initialize the Mongoose module in src/puzzles/puzzles.module.ts.
4. Uncomment the Mongoose imports in app.module.ts.
5. Create a .env file at the root of the project with the MongoDB connection string:

   MONGO_URI=mongodb://localhost:27017/puzzles-db

6. Start the project with the command:

   npm run start:dev

7. Use Postman to send a POST request to the endpoint:

   http://[::1]:3000/puzzles/upload
   

   This will start uploading the puzzles to the MongoDB database. The console will notify when the process is complete.

Step 2: Generate Puzzle Files by Themes and Openings

1. In the controller src/puzzles/puzzles.controller.ts, uncomment the writeThemes and writeOpenings methods.
2. In the service src/puzzles/puzzles.service.ts, enable the correct return for the getPuzzlesByThemeFromDB and getPuzzlesByOpeningFromDB methods.
3. Start the file generation process by sending POST requests to the following endpoints:
   • To generate files by themes:

     http://[::1]:3000/puzzles/write-themes
     

   • To generate files by openings:

     http://[::1]:3000/puzzles/write-openings
     

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