app.py

from flask import Flask, jsonify, send_from_directory

app = Flask(__name__, static_folder='build', static_url_path='')

@app.route('/api/data')
def get_data():
    data = {
        "nodes": [
            {"id": "1", "data": {"label": "Node 1"}, "position": {"x": 100, "y": 100}},
            {"id": "2", "data": {"label": "Node 2"}, "position": {"x": 300, "y": 200}}
        ],
        "edges": [
            {"id": "e1-2", "source": "1", "target": "2"}
        ]
    }
    return jsonify(data)

@app.route('/')
def serve_index():
    return send_from_directory(app.static_folder, 'index.html')

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=7860)