blunderboard/rest_api.py

66 lines
2.0 KiB
Python

from flask import Flask, request, jsonify
from stockfish import Stockfish
app = Flask(__name__)
# Replace YOUR_API_TOKEN with the API token you want to use for authentication
API_TOKEN = "blunderboard-security-token"
default_engine_settings = {
"Debug Log File": "stocklog.txt",
"Contempt": 0,
"Min Split Depth": 0,
"Threads": 2,
# More threads will make the engine stronger, but should be kept at less than
# the number of logical processors on your computer.
"Ponder": "false",
"Hash": 516,
# Default size is 16 MB. It's recommended that you increase this value, but keep
# it as some power of 2. E.g., if you're fine using 2 GB of RAM, set Hash to
# 2048 (11th power of 2).
"MultiPV": 1,
"Skill Level": 20,
"Move Overhead": 10,
"Minimum Thinking Time": 5,
"Slow Mover": 100,
"UCI_Chess960": "false",
"UCI_LimitStrength": "false",
"UCI_Elo": 1350,
# "NNUE": "true", # TODO Find out if NNUE can be used with the python wrapper
}
# Create a Stockfish chess engine instance
engine = Stockfish(path="/usr/bin/stockfish")
# Set the engine settings
engine.update_engine_parameters(default_engine_settings)
@app.route("/api/get_evaluation", methods=["POST"])
def get_evaluation():
# Get the API token from the request header
token = request.headers.get("Authorization")
# If the API token is not provided or is invalid, return an error
if token != API_TOKEN:
return jsonify({"error": "Invalid API token"}), 401
# Get the current chess position and the desired depth from the request body
data = request.get_json()
position = data.get("position")
depth = data.get("depth")
# Set the position and search depth in the chess engine
engine.set_fen_position(position)
engine.set_depth(depth)
# Get the evaluation in centipawns
evaluation = engine.get_evaluation()
# Return the evaluation to the client
return evaluation
if __name__ == "__main__":
app.run(host="")