Fix State Service not loading when using load_flow_from_json (#1661)

* Refactor test_loading.py to improve code readability and maintainability

* Refactor code in test_template.py, __main__.py, and utils.py to improve code readability and maintainability

* Fix logger.configure() to disable logging when disable flag is True

* Refactor validate_icon function to use emoji library for emoji validation in model.py

* Refactor import statements in base.py files to improve code organization and maintainability

* Refactor state_manager.py to handle error when getting state service and use InMemoryStateService as fallback

* Refactor load_flow_from_json function in load.py to configure logs and load services

* Add test_run_flow_from_json_object function to test_loading.py

* Refactor langflow.processing.process.py and langflow.schema.graph.py

* Set all streaming to false in run_flow_from_json function

* Refactor import statements in base.py files to improve code organization and maintainability

* Refactor arun function in base.py to handle event loop and async execution

* Add docstring to run_flow_from_json

* Refactor import statements in base.py files to use logger in langflow interface

* Refactor build method in ChatOutput and TextInput classes to use build_with_record

* Refactor import statements in base.py files to improve code organization and maintainability

* Refactor import statements in PythonREPLTool.py for improved code organization and maintainability

* Refactor build method in TextOutput class to include optional record_template parameter

* Refactor build method in ChatComponent class to include build_no_record method

* Refactor input_value parameter in TextInput build method to use Text type

* Refactor import statements in FlowTool.py for improved code organization and maintainability

* Bump langflow-base version to 0.0.25 and add asyncer dependency

* Refactor code in multiple files for improved organization and maintainability

* Refactor import statements in multiple files for improved code organization and maintainability
This commit is contained in:
Gabriel Luiz Freitas Almeida 2024-04-10 11:56:37 -03:00 • committed by GitHub
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55 changed files with 3849 additions and 4432 deletions

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poetry.lock generated
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@ -167,13 +167,13 @@ files = [
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@ -2004,13 +2007,13 @@ zstandard = ["zstandard"]
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{file = "scikit_learn-1.4.2-cp39-cp39-win_amd64.whl", hash = "sha256:c97a50b05c194be9146d61fe87dbf8eac62b203d9e87a3ccc6ae9aed2dfaf361"},
]
[package.dependencies]
joblib = ">=1.2.0"
numpy = ">=1.19.5,<2.0"
numpy = ">=1.19.5"
scipy = ">=1.6.0"
threadpoolctl = ">=2.0.0"
@ -9039,13 +9042,13 @@ tutorials = ["matplotlib", "pandas", "tabulate", "torch"]
[[package]]
name = "typer"
version = "0.12.2"
version = "0.12.3"
description = "Typer, build great CLIs. Easy to code. Based on Python type hints."
optional = false
python-versions = ">=3.7"
files = [
{file = "typer-0.12.2-py3-none-any.whl", hash = "sha256:e1accbaa7e2b2350753acec896ac30493ac573211a8d4603e88f8356217e01f7"},
{file = "typer-0.12.2.tar.gz", hash = "sha256:977929604fde12aeada011852ad9c64370501be6ac2eac248f3161cdc9eeb7c9"},
{file = "typer-0.12.3-py3-none-any.whl", hash = "sha256:070d7ca53f785acbccba8e7d28b08dcd88f79f1fbda035ade0aecec71ca5c914"},
{file = "typer-0.12.3.tar.gz", hash = "sha256:49e73131481d804288ef62598d97a1ceef3058905aa536a1134f90891ba35482"},
]
[package.dependencies]

View file

@ -9,6 +9,12 @@ import click
import httpx
import typer
from dotenv import load_dotenv
from langflow.main import setup_app
from langflow.services.database.utils import session_getter
from langflow.services.deps import get_db_service
from langflow.services.utils import initialize_services
from langflow.utils.logger import configure, logger
from langflow.utils.util import update_settings
from multiprocess import Process, cpu_count # type: ignore
from packaging import version as pkg_version
from rich import box
@ -17,12 +23,6 @@ from rich.console import Console
from rich.panel import Panel
from rich.table import Table
from langflow.main import setup_app
from langflow.services.database.utils import session_getter
from langflow.services.deps import get_db_service, get_settings_service
from langflow.services.utils import initialize_services, initialize_settings_service
from langflow.utils.logger import configure, logger
console = Console()
app = typer.Typer(no_args_is_help=True)
@ -68,36 +68,6 @@ def set_var_for_macos_issue():
logger.debug("Set OBJC_DISABLE_INITIALIZE_FORK_SAFETY to YES to avoid error")
def update_settings(
config: str,
cache: Optional[str] = None,
dev: bool = False,
remove_api_keys: bool = False,
components_path: Optional[Path] = None,
store: bool = True,
):
"""Update the settings from a config file."""
# Check for database_url in the environment variables
initialize_settings_service()
settings_service = get_settings_service()
if config:
logger.debug(f"Loading settings from {config}")
settings_service.settings.update_from_yaml(config, dev=dev)
if remove_api_keys:
logger.debug(f"Setting remove_api_keys to {remove_api_keys}")
settings_service.settings.update_settings(REMOVE_API_KEYS=remove_api_keys)
if cache:
logger.debug(f"Setting cache to {cache}")
settings_service.settings.update_settings(CACHE=cache)
if components_path:
logger.debug(f"Adding component path {components_path}")
settings_service.settings.update_settings(COMPONENTS_PATH=components_path)
if not store:
logger.debug("Setting store to False")
settings_service.settings.update_settings(STORE=False)
@app.command()
def run(
host: str = typer.Option("127.0.0.1", help="Host to bind the server to.", envvar="LANGFLOW_HOST"),
@ -316,7 +286,7 @@ def is_prerelease(version: str) -> bool:
return "a" in version or "b" in version or "rc" in version
def fetch_latest_version(package_name: str, include_prerelease: bool) -> str:
def fetch_latest_version(package_name: str, include_prerelease: bool) -> Optional[str]:
response = httpx.get(f"https://pypi.org/pypi/{package_name}/json")
versions = response.json()["releases"].keys()
valid_versions = [v for v in versions if include_prerelease or not is_prerelease(v)]
@ -358,7 +328,7 @@ def print_banner(host: str, port: int):
package_name = ""
try:
from langflow.version import __version__ as langflow_version
from langflow.version import __version__ as langflow_version # type: ignore
is_pre_release |= is_prerelease(langflow_version) # Update pre-release status
notice = build_version_notice(langflow_version, "langflow")

View file

@ -14,7 +14,6 @@ from langflow.api.v1.schemas import (
RunResponse,
SimplifiedAPIRequest,
TaskStatusResponse,
Tweaks,
UpdateCustomComponentRequest,
UploadFileResponse,
)
@ -24,6 +23,7 @@ from langflow.interface.custom.custom_component import CustomComponent
from langflow.interface.custom.directory_reader import DirectoryReader
from langflow.interface.custom.utils import build_custom_component_template
from langflow.processing.process import process_tweaks, run_graph_internal
from langflow.schema.graph import Tweaks
from langflow.services.auth.utils import api_key_security, get_current_active_user
from langflow.services.cache.utils import save_uploaded_file
from langflow.services.database.models.flow import Flow
@ -373,7 +373,7 @@ async def create_upload_file(
@router.get("/version")
def get_version():
try:
from langflow.version import __version__
from langflow.version import __version__ # type: ignore
version = __version__
package = "Langflow"

View file

@ -4,10 +4,11 @@ from pathlib import Path
from typing import Any, Dict, List, Optional, Union
from uuid import UUID
from pydantic import BaseModel, ConfigDict, Field, RootModel, field_validator, model_serializer
from pydantic import BaseModel, ConfigDict, Field, field_validator, model_serializer
from langflow.graph.schema import RunOutputs
from langflow.schema import dotdict
from langflow.schema.graph import Tweaks
from langflow.schema.schema import InputType, OutputType
from langflow.services.database.models.api_key.model import ApiKeyRead
from langflow.services.database.models.base import orjson_dumps
@ -283,36 +284,6 @@ class InputValueRequest(BaseModel):
)
class Tweaks(RootModel):
root: dict[str, Union[str, dict[str, str]]] = Field(
description="A dictionary of tweaks to adjust the flow's execution. Allows customizing flow behavior dynamically. All tweaks are overridden by the input values.",
)
model_config = {
"json_schema_extra": {
"examples": [
{
"parameter_name": "value",
"Component Name": {"parameter_name": "value"},
"component_id": {"parameter_name": "value"},
}
]
}
}
# This should behave like a dict
def __getitem__(self, key):
return self.root[key]
def __setitem__(self, key, value):
self.root[key] = value
def __delitem__(self, key):
del self.root[key]
def items(self):
return self.root.items()
class SimplifiedAPIRequest(BaseModel):
input_value: Optional[str] = Field(default="", description="The input value")
input_type: Optional[InputType] = Field(default="chat", description="The input type")

View file

@ -79,7 +79,7 @@ class ChatComponent(CustomComponent):
records = add_messages([record])
return records[0]
def build(
def build_with_record(
self,
sender: Optional[str] = "User",
sender_name: Optional[str] = "User",
@ -116,3 +116,41 @@ class ChatComponent(CustomComponent):
if session_id and isinstance(result, (Record, str)):
self.store_message(result, session_id, sender, sender_name)
return result
def build_no_record(
self,
sender: Optional[str] = "User",
sender_name: Optional[str] = "User",
input_value: Optional[str] = None,
session_id: Optional[str] = None,
return_record: Optional[bool] = False,
record_template: str = "Text: {text}\nData: {data}",
) -> Union[Text, Record]:
input_value_record: Optional[Record] = None
if return_record:
if isinstance(input_value, Record):
# Update the data of the record
input_value.data["sender"] = sender
input_value.data["sender_name"] = sender_name
input_value.data["session_id"] = session_id
else:
input_value_record = Record(
text=input_value,
data={
"sender": sender,
"sender_name": sender_name,
"session_id": session_id,
},
)
elif isinstance(input_value, Record):
input_value = records_to_text(template=record_template, records=input_value)
if not input_value:
input_value = ""
if return_record and input_value_record:
result: Union[Text, Record] = input_value_record
else:
result = input_value
self.status = result
if session_id and isinstance(result, (Record, str)):
self.store_message(result, session_id, sender, sender_name)
return result

View file

@ -3,7 +3,6 @@ import json
from typing import List, Optional
import httpx
from langflow.interface.custom.custom_component import CustomComponent
from langflow.schema import Record
@ -47,8 +46,8 @@ class APIRequest(CustomComponent):
client: httpx.AsyncClient,
method: str,
url: str,
headers: Optional[Record] = None,
body: Optional[Record] = None,
headers: Optional[dict] = None,
body: Optional[dict] = None,
timeout: int = 5,
) -> Record:
method = method.upper()

View file

@ -1,6 +1,7 @@
from typing import Any, Dict, List, Optional
from langchain_openai.embeddings.base import OpenAIEmbeddings
from pydantic.v1 import SecretStr
from langflow.field_typing import Embeddings, NestedDict
from langflow.interface.custom.custom_component import CustomComponent
@ -113,6 +114,10 @@ class OpenAIEmbeddingsComponent(CustomComponent):
# This is to avoid errors with Vector Stores (e.g Chroma)
if disallowed_special == ["all"]:
disallowed_special = "all" # type: ignore
if openai_api_key:
api_key = SecretStr(openai_api_key)
else:
api_key = None
return OpenAIEmbeddings(
tiktoken_enabled=tiktoken_enable,
@ -128,7 +133,7 @@ class OpenAIEmbeddingsComponent(CustomComponent):
model=model,
model_kwargs=model_kwargs,
base_url=openai_api_base,
api_key=openai_api_key,
api_key=api_key,
openai_api_type=openai_api_type,
api_version=openai_api_version,
organization=openai_organization,

View file

@ -1,14 +1,14 @@
from typing import Any, List, Optional
from asyncer import syncify
from langchain_core.tools import StructuredTool
from loguru import logger
from langflow.custom import CustomComponent
from langflow.field_typing import Tool
from langflow.graph.graph.base import Graph
from langflow.helpers.flow import build_function_and_schema
from langflow.schema.dotdict import dotdict
from langflow.schema.schema import Record
from loguru import logger
class FlowToolComponent(CustomComponent):
@ -74,6 +74,7 @@ class FlowToolComponent(CustomComponent):
graph = Graph.from_payload(flow_record.data["data"])
dynamic_flow_function, schema = build_function_and_schema(flow_record, graph)
tool = StructuredTool.from_function(
func=syncify(dynamic_flow_function, raise_sync_error=False), # type: ignore
coroutine=dynamic_flow_function,
name=name,
description=description,

View file

@ -61,6 +61,6 @@ class MemoryComponent(CustomComponent):
limit=n_messages,
order=order,
)
messages_str = records_to_text(template=record_template, records=messages)
messages_str = records_to_text(template=record_template or "", records=messages)
self.status = messages_str
return messages_str

View file

@ -1,4 +1,4 @@
from typing import Optional
from typing import Optional, Union
from langchain.text_splitter import CharacterTextSplitter, RecursiveCharacterTextSplitter
from langchain_core.documents import Document
@ -51,6 +51,8 @@ class SplitTextComponent(CustomComponent):
chunk_overlap: Optional[int] = 200,
recursive: bool = False,
) -> list[Record]:
if separators is None:
separators = []
separators = [unescape_string(x) for x in separators]
# Make sure chunk_size and chunk_overlap are ints
@ -58,7 +60,7 @@ class SplitTextComponent(CustomComponent):
chunk_size = int(chunk_size)
if isinstance(chunk_overlap, str):
chunk_overlap = int(chunk_overlap)
splitter: Optional[Union[CharacterTextSplitter, RecursiveCharacterTextSplitter]] = None
if recursive:
splitter = RecursiveCharacterTextSplitter(
separators=separators,

View file

@ -28,7 +28,7 @@ class ChatInput(ChatComponent):
session_id: Optional[str] = None,
return_record: Optional[bool] = False,
) -> Union[Text, Record]:
return super().build(
return super().build_no_record(
sender=sender,
sender_name=sender_name,
input_value=input_value,

View file

@ -26,7 +26,7 @@ class TextInput(TextComponent):
def build(
self,
input_value: Optional[str] = "",
input_value: Optional[Text] = "",
record_template: Optional[str] = "",
) -> Text:
return super().build(input_value=input_value, record_template=record_template)

View file

@ -1,10 +1,7 @@
from .AmazonBedrockSpecs import AmazonBedrockComponent
from .AnthropicLLMSpecs import ChatAntropicSpecsComponent
from .AzureChatOpenAISpecs import AzureChatOpenAISpecsComponent
from .BaiduQianfanChatEndpointsSpecs import QianfanChatEndpointComponent
from .BaiduQianfanLLMEndpointsSpecs import QianfanLLMEndpointComponent
from .ChatAnthropicSpecs import ChatAnthropicComponent
from .ChatAnthropicSpecs import AnthropicLLM
from .ChatLiteLLMSpecs import ChatLiteLLMComponent
from .ChatOllamaEndpointSpecs import ChatOllamaComponent
from .ChatOpenAISpecs import ChatOpenAIComponent
@ -21,7 +18,7 @@ __all__ = [
"AzureChatOpenAISpecsComponent",
"QianfanChatEndpointComponent",
"QianfanLLMEndpointComponent",
"ChatAnthropicComponent",
"AnthropicLLM",
"ChatLiteLLMComponent",
"ChatOllamaComponent",
"ChatOpenAIComponent",

View file

@ -2,6 +2,7 @@ from typing import Optional
from langchain.llms.base import BaseLanguageModel
from langchain_openai import AzureChatOpenAI
from pydantic.v1 import SecretStr
from langflow.base.constants import STREAM_INFO_TEXT
from langflow.base.models.model import LCModelComponent
@ -105,13 +106,17 @@ class AzureChatOpenAIComponent(LCModelComponent):
max_tokens: Optional[int] = 1000,
stream: bool = False,
) -> BaseLanguageModel:
if api_key:
secret_api_key = SecretStr(api_key)
else:
secret_api_key = None
try:
output = AzureChatOpenAI(
model=model,
azure_endpoint=azure_endpoint,
azure_deployment=azure_deployment,
api_version=api_version,
api_key=api_key,
api_key=secret_api_key,
temperature=temperature,
max_tokens=max_tokens,
)

View file

@ -1,6 +1,7 @@
from typing import Optional
from langchain_openai import ChatOpenAI
from pydantic.v1 import SecretStr
from langflow.base.constants import STREAM_INFO_TEXT
from langflow.base.models.model import LCModelComponent
@ -94,12 +95,17 @@ class OpenAIModelComponent(LCModelComponent):
) -> Text:
if not openai_api_base:
openai_api_base = "https://api.openai.com/v1"
if openai_api_key:
api_key = SecretStr(openai_api_key)
else:
api_key = None
output = ChatOpenAI(
max_tokens=max_tokens,
model_kwargs=model_kwargs,
model=model_name,
base_url=openai_api_base,
api_key=openai_api_key,
api_key=api_key,
temperature=temperature,
)

View file

@ -19,11 +19,11 @@ class ChatOutput(ChatComponent):
return_record: Optional[bool] = False,
record_template: Optional[str] = "{text}",
) -> Union[Text, Record]:
return super().build(
return super().build_with_record(
sender=sender,
sender_name=sender_name,
input_value=input_value,
session_id=session_id,
return_record=return_record,
record_template=record_template,
record_template=record_template or "",
)

View file

@ -24,5 +24,5 @@ class TextOutput(TextComponent):
},
}
def build(self, input_value: Optional[Text] = "", record_template: str = "") -> Text:
def build(self, input_value: Optional[Text] = "", record_template: Optional[str] = "") -> Text:
return super().build(input_value=input_value, record_template=record_template)

View file

@ -34,8 +34,8 @@ class PythonREPLToolComponent(CustomComponent):
global_dict = {}
for module in globals:
try:
module = importlib.import_module(module)
global_dict[module.__name__] = module
imported_module = importlib.import_module(module)
global_dict[imported_module.__name__] = imported_module
except ImportError:
print(f"Could not import module {module}")
return global_dict

View file

@ -296,18 +296,27 @@ class Graph:
# run the async function in a sync way
# this could be used in a FastAPI endpoint
# so we should take care of the event loop
loop = asyncio.get_event_loop()
return loop.run_until_complete(
self.arun(
inputs=inputs,
inputs_components=input_components,
types=types,
outputs=outputs,
session_id=session_id,
stream=stream,
)
coro = self.arun(
inputs=inputs,
inputs_components=input_components,
types=types,
outputs=outputs,
session_id=session_id,
stream=stream,
)
try:
# Attempt to get the running event loop; if none, an exception is raised
loop = asyncio.get_running_loop()
if loop.is_closed():
raise RuntimeError("The running event loop is closed.")
except RuntimeError:
# If there's no running event loop or it's closed, use asyncio.run
return asyncio.run(coro)
# If there's an existing, open event loop, use it to run the async function
return loop.run_until_complete(coro)
async def arun(
self,
inputs: list[Dict[str, str]],

View file

@ -1,15 +1,22 @@
from typing import TYPE_CHECKING, Callable
from langflow.services.deps import get_state_service
from loguru import logger
from langflow.services.deps import get_settings_service, get_state_service
if TYPE_CHECKING:
from langflow.services.state.service import StateService
class GraphStateManager:
def __init__(self):
self.state_service: "StateService" = get_state_service()
try:
self.state_service: "StateService" = get_state_service()
except Exception as e:
logger.debug(f"Error getting state service. Defaulting to InMemoryStateService: {e}")
from langflow.services.state.service import InMemoryStateService
self.state_service = InMemoryStateService(get_settings_service())
def append_state(self, key, new_state, run_id: str):
self.state_service.append_state(key, new_state, run_id)

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