app_part2.py

app = Flask(__name__)

@app.route("/", methods=["GET"])
  def graphql_playgroud():    
    return PLAYGROUND_HTML, 200
  
@app.route("/", methods=["POST"])
  def graphql_server():    
    data = request.get_json()    
    
    success, result = graphql_sync(
        schema,
        data,
        context_value=request,
        debug=app.debug
    )
    
status_code = 200 if success else 400

return jsonify(result), status_code

if __name__ == "__main__":
    app.run(debug=True, host="0.0.0.0", port=8300)
 docker-compose.yml