json

@account.route("/signup", methods=["POST"])
@produces_json
def signup():
    js = request.json
    user_name = get_or_error(js, "user_name")
    first_name = js.get("first_name")
    last_name = js.get("last_name")
    password = get_or_error(js, "password")
    verification_identity = uuid.uuid4().hex
    user = User.get(user_name)
    if user is not None and user.verified:
        return "Invalid verification", 400
    user = User.signup(user_name, password, first_name, last_name, verification_identity)
    return user.to_json()