Imagin Games - API Gateway authorizer lambda source code

authorizer.py

import os

import jwt


def decode_authorization_header(identity_source: list) -> dict:
    try:
        token = identity_source[0].split(" ")[1]
        key = os.environ.get("JWT_TOKEN")
        result = jwt.decode(token, key, algorithms="HS256")
        if "id" in result:
            return result
    except Exception:
        pass

    return None


def lambda_handler(event, context):
    decoded = decode_authorization_header(event.get("identitySource", []))
    if decoded is not None and "id" in decoded:
        return {"isAuthorized": True, "context": decoded}

    return {"isAuthorized": False}