app.py

from flask import Flask, render_template, request, jsonify
from flask_cors import CORS
import json
import yaml
import toml
import csv
import io

app = Flask(__name__)
CORS(app)

@app.route('/')
def index():
    return render_template('index.html')

@app.route('/api/convert', methods=['POST'])
def convert():
    try:
        data = request.json
        input_format = data.get('input_format', 'json')
        output_format = data.get('output_format', 'yaml')
        content = data.get('content', '')
        
        # Parse input
        if input_format == 'json':
            parsed = json.loads(content)
        elif input_format == 'yaml':
            parsed = yaml.safe_load(content)
        else:
            parsed = json.loads(content)  # fallback
        
        # Convert to output
        if output_format == 'json':
            output = json.dumps(parsed, indent=2)
        elif output_format == 'yaml':
            output = yaml.dump(parsed, default_flow_style=False)
        elif output_format == 'toml':
            output = toml.dumps(parsed)
        else:
            output = json.dumps(parsed, indent=2)  # fallback
        
        return jsonify({
            'success': True,
            'output': output
        })
        
    except Exception as e:
        return jsonify({
            'success': False,
            'error': str(e)
        }), 400

if __name__ == '__main__':
    app.run(debug=True, port=5000)