from __future__ import annotations import atexit import datetime as dt import functools from io import BufferedReader, BytesIO import logging import os import random import time import warnings from json import JSONDecodeError from typing import Dict, Any, Union, Literal import httpx from .s3_reader import S3BufferedReader, bytes_generator from .s3_types import Boto3ConnectionSettings, DuckDbConnectionSettings, PolarsConnectionSettings, S3Object _client: "Windmill | None" = None logger = logging.getLogger("windmill_client") JobStatus = Literal["RUNNING", "WAITING", "COMPLETED"] class Windmill: def __init__(self, base_url=None, token=None, workspace=None, verify=True): base = base_url or os.environ.get("BASE_INTERNAL_URL") self.base_url = f"{base}/api" self.token = token or os.environ.get("WM_TOKEN") self.headers = { "Content-Type": "application/json", "Authorization": f"Bearer {self.token}", } self.verify = verify self.client = self.get_client() self.workspace = workspace or os.environ.get("WM_WORKSPACE") self.path = os.environ.get("WM_JOB_PATH") assert self.workspace, f"workspace required as an argument or as WM_WORKSPACE environment variable" def get_client(self) -> httpx.Client: return httpx.Client( base_url=self.base_url, headers=self.headers, verify=self.verify, ) def get(self, endpoint, raise_for_status=True, **kwargs) -> httpx.Response: endpoint = endpoint.lstrip("/") resp = self.client.get(f"/{endpoint}", **kwargs) if raise_for_status: try: resp.raise_for_status() except httpx.HTTPStatusError as err: error = f"{err.request.url}: {err.response.status_code}, {err.response.text}" logger.error(error) raise Exception(error) return resp def post(self, endpoint, raise_for_status=True, **kwargs) -> httpx.Response: endpoint = endpoint.lstrip("/") resp = self.client.post(f"/{endpoint}", **kwargs) if raise_for_status: try: resp.raise_for_status() except httpx.HTTPStatusError as err: error = f"{err.request.url}: {err.response.status_code}, {err.response.text}" logger.error(error) raise Exception(error) return resp def create_token(self, duration=dt.timedelta(days=1)) -> str: endpoint = "/users/tokens/create" payload = { "label": f"refresh {time.time()}", "expiration": (dt.datetime.now() + duration).strftime("%Y-%m-%dT%H:%M:%SZ"), } return self.post(endpoint, json=payload).text def run_script_async( self, path: str = None, hash_: str = None, args: dict = None, scheduled_in_secs: int = None, ) -> str: """Create a script job and return its job id.""" assert not (path and hash_), "path and hash_ are mutually exclusive" args = args or {} params = {"scheduled_in_secs": scheduled_in_secs} if scheduled_in_secs else {} if os.environ.get("WM_JOB_ID"): params["parent_job"] = os.environ.get("WM_JOB_ID") if os.environ.get("WM_ROOT_FLOW_JOB_ID"): params["root_job"] = os.environ.get("WM_ROOT_FLOW_JOB_ID") if path: endpoint = f"/w/{self.workspace}/jobs/run/p/{path}" elif hash_: endpoint = f"/w/{self.workspace}/jobs/run/h/{hash_}" else: raise Exception("path or hash_ must be provided") return self.post(endpoint, json=args, params=params).text def run_flow_async( self, path: str, args: dict = None, scheduled_in_secs: int = None, ) -> str: """Create a flow job and return its job id.""" args = args or {} params = {"scheduled_in_secs": scheduled_in_secs} if scheduled_in_secs else {} if os.environ.get("WM_JOB_ID"): params["parent_job"] = os.environ.get("WM_JOB_ID") if os.environ.get("WM_ROOT_FLOW_JOB_ID"): params["root_job"] = os.environ.get("WM_ROOT_FLOW_JOB_ID") if path: endpoint = f"/w/{self.workspace}/jobs/run/f/{path}" else: raise Exception("path must be provided") return self.post(endpoint, json=args, params=params).text def run_script( self, path: str = None, hash_: str = None, args: dict = None, timeout: dt.timedelta | int | float | None = None, verbose: bool = False, cleanup: bool = True, assert_result_is_not_none: bool = False, ) -> Any: """Run script synchronously and return its result.""" args = args or {} if verbose: logger.info(f"running `{path}` synchronously with {args = }") if isinstance(timeout, dt.timedelta): timeout = timeout.total_seconds() job_id = self.run_script_async(path=path, hash_=hash_, args=args) return self.wait_job( job_id, timeout, verbose, cleanup, assert_result_is_not_none ) def wait_job( self, job_id, timeout: dt.timedelta | int | float | None = None, verbose: bool = False, cleanup: bool = True, assert_result_is_not_none: bool = False, ): def cancel_job(): logger.warning(f"cancelling job: {job_id}") self.post( f"/w/{self.workspace}/jobs_u/queue/cancel/{job_id}", json={"reason": "parent script cancelled"}, ).raise_for_status() if cleanup: atexit.register(cancel_job) start_time = time.time() if isinstance(timeout, dt.timedelta): timeout = timeout.total_seconds() while True: result_res = self.get(f"/w/{self.workspace}/jobs_u/completed/get_result_maybe/{job_id}", False).json() started = result_res["started"] completed = result_res["completed"] success = result_res["success"] if not started and verbose: logger.info(f"job {job_id} has not started yet") if cleanup and completed: atexit.unregister(cancel_job) if completed: result = result_res["result"] if success: if result is None and assert_result_is_not_none: raise Exception("Result was none") return result else: error = result["error"] raise Exception(f"Job {job_id} was not successful: {str(error)}") if timeout and ((time.time() - start_time) > timeout): msg = "reached timeout" logger.warning(msg) self.post( f"/w/{self.workspace}/jobs_u/queue/cancel/{job_id}", json={"reason": msg}, ) raise TimeoutError(msg) if verbose: logger.info(f"sleeping 0.5 seconds for {job_id = }") time.sleep(0.5) def cancel_running(self) -> dict: """Cancel currently running executions of the same script.""" logger.info("canceling running executions of this script") jobs = self.get( f"/w/{self.workspace}/jobs/list", params={ "running": "true", "script_path_exact": self.path, }, ).json() current_job_id = os.environ.get("WM_JOB_ID") logger.debug(f"{current_job_id = }") job_ids = [j["id"] for j in jobs if j["id"] != current_job_id] if job_ids: logger.info(f"cancelling the following job ids: {job_ids}") else: logger.info("no previous executions to cancel") result = {} for id_ in job_ids: result[id_] = self.post( f"/w/{self.workspace}/jobs_u/queue/cancel/{id_}", json={"reason": "killed by `cancel_running` method"}, ) return result def get_job(self, job_id: str) -> dict: return self.get(f"/w/{self.workspace}/jobs_u/get/{job_id}").json() def get_root_job_id(self, job_id: str | None = None) -> dict: job_id = job_id or os.environ.get("WM_JOB_ID") return self.get(f"/w/{self.workspace}/jobs_u/get_root_job_id/{job_id}").json() def get_id_token(self, audience: str) -> str: return self.post(f"/w/{self.workspace}/oidc/token/{audience}").text def get_job_status(self, job_id: str) -> JobStatus: job = self.get_job(job_id) job_type = job.get("type", "") assert job_type, f"{job} is not a valid job" if job_type.lower() == "completedjob": return "COMPLETED" additional_properties = job.get("additional_properties", {}) if "running" not in additional_properties: raise Exception(f"{job_id} is not running") if additional_properties.get("running"): return "RUNNING" return "WAITING" def get_result( self, job_id: str, assert_result_is_not_none: bool = True, ) -> Any: result = self.get(f"/w/{self.workspace}/jobs_u/completed/get_result/{job_id}") result_text = result.text if assert_result_is_not_none and result_text is None: raise Exception(f"result is None for {job_id = }") try: return result.json() except JSONDecodeError: return result_text def get_variable(self, path: str) -> str: """Get variable from Windmill""" return self.get(f"/w/{self.workspace}/variables/get_value/{path}").json() def set_variable(self, path: str, value: str, is_secret: bool = False) -> None: """Set variable from Windmill""" # check if variable exists r = self.get(f"/w/{self.workspace}/variables/get/{path}", raise_for_status=False) if r.status_code == 404: # create variable self.post( f"/w/{self.workspace}/variables/create", json={ "path": path, "value": value, "is_secret": is_secret, "description": "", }, ) else: # update variable self.post( f"/w/{self.workspace}/variables/update/{path}", json={"value": value}, ) def get_resource( self, path: str, none_if_undefined: bool = False, ) -> dict | None: """Get resource from Windmill""" try: return self.get(f"/w/{self.workspace}/resources/get_value_interpolated/{path}").json() except Exception as e: if none_if_undefined: return None logger.error(e) raise e def set_resource( self, value: Any, path: str, resource_type: str, ): # check if resource exists r = self.get(f"/w/{self.workspace}/resources/get/{path}", raise_for_status=False) if r.status_code == 404: # create resource self.post( f"/w/{self.workspace}/resources/create", json={ "path": path, "value": value, "resource_type": resource_type, }, ) else: # update resource self.post( f"/w/{self.workspace}/resources/update_value/{path}", json={"value": value}, ) def set_state(self, value: Any): self.set_resource(value, path=self.state_path, resource_type="state") @property def version(self): return self.get("version").text def get_duckdb_connection_settings( self, s3_resource_path: str = "", ) -> DuckDbConnectionSettings | None: """ Convenient helpers that takes an S3 resource as input and returns the settings necessary to initiate an S3 connection from DuckDB """ try: raw_obj = self.post( f"/w/{self.workspace}/job_helpers/v2/duckdb_connection_settings", json={} if s3_resource_path == "" else {"s3_resource_path": s3_resource_path}, ).json() return DuckDbConnectionSettings(raw_obj) except JSONDecodeError as e: raise Exception("Could not generate DuckDB S3 connection settings from the provided resource") from e def get_polars_connection_settings( self, s3_resource_path: str = "", ) -> PolarsConnectionSettings: """ Convenient helpers that takes an S3 resource as input and returns the settings necessary to initiate an S3 connection from Polars """ try: raw_obj = self.post( f"/w/{self.workspace}/job_helpers/v2/polars_connection_settings", json={} if s3_resource_path == "" else {"s3_resource_path": s3_resource_path}, ).json() return PolarsConnectionSettings(raw_obj) except JSONDecodeError as e: raise Exception("Could not generate Polars S3 connection settings from the provided resource") from e def get_boto3_connection_settings( self, s3_resource_path: str = "", ) -> Boto3ConnectionSettings: """ Convenient helpers that takes an S3 resource as input and returns the settings necessary to initiate an S3 connection using boto3 """ try: s3_resource = self.post( f"/w/{self.workspace}/job_helpers/v2/s3_resource_info", json={} if s3_resource_path == "" else {"s3_resource_path": s3_resource_path}, ).json() return self.__boto3_connection_settings(s3_resource) except JSONDecodeError as e: raise Exception("Could not generate Boto3 S3 connection settings from the provided resource") from e def load_s3_file(self, s3object: S3Object, s3_resource_path: str | None) -> bytes: """ Load a file from the workspace s3 bucket and returns its content as bytes. '''python from wmill import S3Object s3_obj = S3Object(s3="/path/to/my_file.txt") my_obj_content = client.load_s3_file(s3_obj) file_content = my_obj_content.decode("utf-8") ''' """ with self.load_s3_file_reader(s3object, s3_resource_path) as file_reader: return file_reader.read() def load_s3_file_reader(self, s3object: S3Object, s3_resource_path: str | None) -> BufferedReader: """ Load a file from the workspace s3 bucket and returns the bytes stream. '''python from wmill import S3Object s3_obj = S3Object(s3="/path/to/my_file.txt") with wmill.load_s3_file(s3object, s3_resource_path) as file_reader: print(file_reader.read()) ''' """ reader = S3BufferedReader(f"{self.workspace}", self.client, s3object["s3"], s3_resource_path) return reader def write_s3_file( self, s3object: S3Object | None, file_content: BufferedReader | bytes, s3_resource_path: str | None, ) -> S3Object: """ Write a file to the workspace S3 bucket '''python from wmill import S3Object s3_obj = S3Object(s3="/path/to/my_file.txt") # for an in memory bytes array: file_content = b'Hello Windmill!' client.write_s3_file(s3_obj, file_content) # for a file: with open("my_file.txt", "rb") as my_file: client.write_s3_file(s3_obj, my_file) ''' """ # httpx accepts either bytes or "a bytes generator" as content. If it's a BufferedReader, we need to convert it to a generator if isinstance(file_content, BufferedReader): content_payload = bytes_generator(file_content) elif isinstance(file_content, bytes): content_payload = file_content else: raise Exception("Type of file_content not supported") query_params = {} if s3object is not None and s3object["s3"] != "": query_params["file_key"] = s3object["s3"] if s3_resource_path is not None and s3_resource_path != "": query_params["s3_resource_path"] = s3_resource_path try: # need a vanilla client b/c content-type is not application/json here response = httpx.post( f"{self.base_url}/w/{self.workspace}/job_helpers/upload_s3_file", headers={"Authorization": f"Bearer {self.token}", "Content-Type": "application/octet-stream"}, params=query_params, content=content_payload, verify=self.verify, timeout=None, ).json() except Exception as e: raise Exception("Could not write file to S3") from e return S3Object(s3=response["file_key"]) def __boto3_connection_settings(self, s3_resource) -> Boto3ConnectionSettings: endpoint_url_prefix = "https://" if s3_resource["useSSL"] else "http://" return Boto3ConnectionSettings( { "endpoint_url": "{}{}".format(endpoint_url_prefix, s3_resource["endPoint"]), "region_name": s3_resource["region"], "use_ssl": s3_resource["useSSL"], "aws_access_key_id": s3_resource["accessKey"], "aws_secret_access_key": s3_resource["secretKey"], # no need for path_style here as boto3 is clever enough to determine which one to use } ) def whoami(self) -> dict: return self.get("/users/whoami").json() @property def user(self) -> dict: return self.whoami() @property def state_path(self) -> str: state_path = os.environ.get("WM_STATE_PATH_NEW", os.environ.get("WM_STATE_PATH")) if state_path is None: raise Exception("State path not found") return state_path @property def state(self) -> Any: return self.get_resource(path=self.state_path, none_if_undefined=True) @state.setter def state(self, value: Any) -> None: self.set_state(value) @staticmethod def set_shared_state_pickle(value: Any, path: str = "state.pickle") -> None: """ Set the state in the shared folder using pickle """ import pickle with open(f"/shared/{path}", "wb") as handle: pickle.dump(value, handle, protocol=pickle.HIGHEST_PROTOCOL) @staticmethod def get_shared_state_pickle(path: str = "state.pickle") -> Any: """ Get the state in the shared folder using pickle """ import pickle with open(f"/shared/{path}", "rb") as handle: return pickle.load(handle) @staticmethod def set_shared_state(value: Any, path: str = "state.json") -> None: """ Set the state in the shared folder using pickle """ import json with open(f"/shared/{path}", "w", encoding="utf-8") as f: json.dump(value, f, ensure_ascii=False, indent=4) @staticmethod def get_shared_state(path: str = "state.json") -> None: """ Set the state in the shared folder using pickle """ import json with open(f"/shared/{path}", "r", encoding="utf-8") as f: return json.load(f) def get_resume_urls(self, approver: str = None) -> dict: nonce = random.randint(0, 1000000000) job_id = os.environ.get("WM_JOB_ID") or "NO_ID" return self.get( f"/w/{self.workspace}/jobs/resume_urls/{job_id}/{nonce}", params={"approver": approver}, ).json() def init_global_client(f): @functools.wraps(f) def wrapper(*args, **kwargs): global _client if _client is None: _client = Windmill() return f(*args, **kwargs) return wrapper def deprecate(in_favor_of: str): def decorator(f): @functools.wraps(f) def wrapper(*args, **kwargs): warnings.warn( ( f"The '{f.__name__}' method is deprecated and may be removed in the future. " f"Consider {in_favor_of}" ), DeprecationWarning, ) return f(*args, **kwargs) return wrapper return decorator @init_global_client def get_workspace() -> str: return _client.workspace @init_global_client def get_root_job_id(job_id: str | None = None) -> str: return _client.get_root_job_id(job_id) @init_global_client @deprecate("Windmill().version") def get_version() -> str: return _client.version @init_global_client def run_script_async( hash_or_path: str, args: Dict[str, Any] = None, scheduled_in_secs: int = None, ) -> str: is_path = "/" in hash_or_path hash_ = None if is_path else hash_or_path path = hash_or_path if is_path else None return _client.run_script_async( hash_=hash_, path=path, args=args, scheduled_in_secs=scheduled_in_secs, ) @init_global_client def run_flow_async( path: str, args: Dict[str, Any] = None, scheduled_in_secs: int = None, ) -> str: return _client.run_flow_async( path=path, args=args, scheduled_in_secs=scheduled_in_secs, ) @init_global_client def run_script_sync( hash: str, args: Dict[str, Any] = None, verbose: bool = False, assert_result_is_not_none: bool = True, cleanup: bool = True, timeout: dt.timedelta = None, ) -> Any: return _client.run_script( hash_=hash, args=args, verbose=verbose, assert_result_is_not_none=assert_result_is_not_none, cleanup=cleanup, timeout=timeout, ) @init_global_client def run_script_by_path_async( path: str, args: Dict[str, Any] = None, scheduled_in_secs: Union[None, int] = None, ) -> str: return _client.run_script_async( path=path, args=args, scheduled_in_secs=scheduled_in_secs, ) @init_global_client def run_script_by_path_sync( path: str, args: Dict[str, Any] = None, verbose: bool = False, assert_result_is_not_none: bool = True, cleanup: bool = True, timeout: dt.timedelta = None, ) -> Any: return _client.run_script( path=path, args=args, verbose=verbose, assert_result_is_not_none=assert_result_is_not_none, cleanup=cleanup, timeout=timeout, ) @init_global_client def get_id_token(audience: str) -> str: """ Get a JWT token for the given audience for OIDC purposes to login into third parties like AWS, Vault, GCP, etc. """ return _client.get_id_token(audience) @init_global_client def get_job_status(job_id: str) -> JobStatus: return _client.get_job_status(job_id) @init_global_client def get_result(job_id: str, assert_result_is_not_none=True) -> Dict[str, Any]: return _client.get_result(job_id=job_id, assert_result_is_not_none=assert_result_is_not_none) @init_global_client def duckdb_connection_settings(s3_resource_path: str = "") -> DuckDbConnectionSettings: """ Convenient helpers that takes an S3 resource as input and returns the settings necessary to initiate an S3 connection from DuckDB """ return _client.get_duckdb_connection_settings(s3_resource_path) @init_global_client def polars_connection_settings(s3_resource_path: str = "") -> PolarsConnectionSettings: """ Convenient helpers that takes an S3 resource as input and returns the settings necessary to initiate an S3 connection from Polars """ return _client.get_polars_connection_settings(s3_resource_path) @init_global_client def boto3_connection_settings(s3_resource_path: str = "") -> Boto3ConnectionSettings: """ Convenient helpers that takes an S3 resource as input and returns the settings necessary to initiate an S3 connection using boto3 """ return _client.get_boto3_connection_settings(s3_resource_path) @init_global_client def load_s3_file(s3object: S3Object, s3_resource_path: str | None = None) -> bytes: """ Load the entire content of a file stored in S3 as bytes """ return _client.load_s3_file(s3object, s3_resource_path if s3_resource_path != "" else None) @init_global_client def load_s3_file_reader(s3object: S3Object, s3_resource_path: str | None = None) -> BufferedReader: """ Load the content of a file stored in S3 """ return _client.load_s3_file_reader(s3object, s3_resource_path if s3_resource_path != "" else None) @init_global_client def write_s3_file( s3object: S3Object | None, file_content: BufferedReader | bytes, s3_resource_path: str | None = None, ) -> S3Object: """ Upload a file to S3 """ return _client.write_s3_file(s3object, file_content, s3_resource_path if s3_resource_path != "" else None) @init_global_client def whoami() -> dict: """ Returns the current user """ return _client.user @init_global_client @deprecate("Windmill().state") def get_state() -> Any: """ Get the state """ return _client.state @init_global_client def get_resource( path: str, none_if_undefined: bool = False, ) -> str | dict | None: """Get resource from Windmill""" return _client.get_resource(path, none_if_undefined) @init_global_client def set_resource(path: str, value: Any, resource_type: str = "any") -> None: """ Set the resource at a given path as a string, creating it if it does not exist """ return _client.set_resource(value=value, path=path, resource_type=resource_type) @init_global_client def set_state(value: Any) -> None: """ Set the state """ return _client.set_state(value) def set_shared_state_pickle(value: Any, path="state.pickle") -> None: """ Set the state in the shared folder using pickle """ return Windmill.set_shared_state_pickle(value=value, path=path) @deprecate("Windmill.get_shared_state_pickle(...)") def get_shared_state_pickle(path="state.pickle") -> Any: """ Get the state in the shared folder using pickle """ return Windmill.get_shared_state_pickle(path=path) def set_shared_state(value: Any, path="state.json") -> None: """ Set the state in the shared folder using pickle """ return Windmill.set_shared_state(value=value, path=path) def get_shared_state(path="state.json") -> None: """ Set the state in the shared folder using pickle """ return Windmill.get_shared_state(path=path) @init_global_client def get_variable(path: str) -> str: """ Returns the variable at a given path as a string """ return _client.get_variable(path) @init_global_client def set_variable(path: str, value: str, is_secret: bool = False) -> None: """ Set the variable at a given path as a string, creating it if it does not exist """ return _client.set_variable(path, value, is_secret) @init_global_client def get_state_path() -> str: return _client.state_path @init_global_client def get_resume_urls(approver: str = None) -> dict: return _client.get_resume_urls(approver) @init_global_client def cancel_running() -> dict: """Cancel currently running executions of the same script.""" return _client.cancel_running() @init_global_client def run_script( path: str = None, hash_: str = None, args: dict = None, timeout: dt.timedelta | int | float = None, verbose: bool = False, cleanup: bool = True, assert_result_is_not_none: bool = True, ) -> Any: """Run script synchronously and return its result.""" return _client.run_script( path=path, hash_=hash_, args=args, verbose=verbose, assert_result_is_not_none=assert_result_is_not_none, cleanup=cleanup, timeout=timeout, ) def task(*args, **kwargs): from inspect import signature def f(func, tag: str | None = None): if os.environ.get("WM_JOB_ID") is None or os.environ.get("MAIN_OVERRIDE") == func.__name__: def inner(*args, **kwargs): return func(*args, **kwargs) return inner else: def inner(*args, **kwargs): global _client if _client is None: _client = Windmill() w_id = os.environ.get("WM_WORKSPACE") job_id = os.environ.get("WM_JOB_ID") f_name = func.__name__ json = kwargs params = list(signature(func).parameters) for i, arg in enumerate(args): if i < len(params): p = params[i] key = p if key not in kwargs: json[key] = arg params = {} if tag is not None: params["tag"] = tag r = _client.post( f"/w/{w_id}/jobs/run/workflow_as_code/{job_id}/{f_name}", json={"args": json}, params=params, ) job_id = r.text print(f"Executing task {func.__name__} on job {job_id}") r = _client.wait_job(job_id) print(f"Task {func.__name__} ({job_id}) completed") return r return inner if len(args) == 1 and len(kwargs) == 0 and callable(args[0]): return f(args[0], None) else: return lambda x: f(x, kwargs.get("tag"))