Merge branch 'add_extra_fields_documentloaders' of https://github.com/logspace-ai/langflow into add_extra_fields_documentloaders

This commit is contained in:
Alexandre Henrique 2023-06-01 16:22:28 -03:00
commit 7ebe47df44
107 changed files with 2964 additions and 608 deletions

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@ -1,2 +1,6 @@
#!/bin/sh
make format
added_files=$(git diff --name-only --cached --diff-filter=d)
make format
git add ${added_files}

View file

@ -59,7 +59,7 @@ lcserve_push:
make build_frontend
@version=$$(poetry version --short); \
lc-serve push --app langflow.lcserve:app --app-dir . \
--image-name langflow --image-tag $${version} --verbose
--image-name langflow --image-tag $${version} --verbose --public
lcserve_deploy:
@:$(if $(uses),,$(error `uses` is not set. Please run `make uses=... lcserve_deploy`))

5
package.json Normal file
View file

@ -0,0 +1,5 @@
{
"dependencies": {
"vite-plugin-svgr": "^3.2.0"
}
}

156
poetry.lock generated
View file

@ -1,4 +1,4 @@
# This file is automatically @generated by Poetry 1.4.0 and should not be changed by hand.
# This file is automatically @generated by Poetry 1.4.2 and should not be changed by hand.
[[package]]
name = "aiofiles"
@ -717,6 +717,23 @@ pandas = ["pandas"]
sqlalchemy = ["sqlalchemy (>1.3.21,<1.4)"]
superset = ["apache-superset (>=1.4.1)"]
[[package]]
name = "cohere"
version = "4.6.0"
description = ""
category = "main"
optional = false
python-versions = ">=3.7,<4.0"
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[package.dependencies]
aiohttp = ">=3.0,<4.0"
backoff = ">=2.0,<3.0"
requests = ">=2.0,<3.0"
[[package]]
name = "colorama"
version = "0.4.6"
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[[package]]
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version = "2.87.0"
version = "2.88.0"
description = "Google API Client Library for Python"
category = "main"
optional = false
python-versions = ">=3.7"
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[[package]]
name = "langchain"
version = "0.0.184"
version = "0.0.186"
description = "Building applications with LLMs through composability"
category = "main"
optional = false
python-versions = ">=3.8.1,<4.0"
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tenacity = ">=8.1.0,<9.0.0"
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qdrant = ["qdrant-client (>=1.1.2,<2.0.0)"]
@ -2348,13 +2376,13 @@ text-helpers = ["chardet (>=5.1.0,<6.0.0)"]
[[package]]
name = "langchain-serve"
version = "0.0.38"
version = "0.0.40"
description = "Langchain Serve - serve your langchain apps on Jina AI Cloud."
category = "main"
optional = true
python-versions = "*"
files = [
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[package.dependencies]
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[metadata]
lock-version = "2.0"
python-versions = ">=3.9,<3.12"
content-hash = "c51c9c7aa21fbe949ea9218412f9979064c4dd8a7fa23da76347a35333306a6e"
content-hash = "2bf357ad30f79c68751b34c991b4a73767ceb628657f4133228d4eb487d8a6fb"

View file

@ -1,6 +1,6 @@
[tool.poetry]
name = "langflow"
version = "0.0.78"
version = "0.0.79"
description = "A Python package with a built-in web application"
authors = ["Logspace <contact@logspace.ai>"]
maintainers = [
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google-api-python-client = "^2.79.0"
typer = "^0.7.0"
gunicorn = "^20.1.0"
langchain = "^0.0.184"
langchain = "^0.0.186"
openai = "^0.27.7"
types-pyyaml = "^6.0.12.8"
dill = "^0.3.6"
@ -49,13 +49,14 @@ psycopg2-binary = "^2.9.6"
pyarrow = "^11.0.0"
tiktoken = "^0.3.3"
wikipedia = "^1.4.0"
langchain-serve = { version = "^0.0.38", optional = true }
langchain-serve = { version = ">0.0.39", optional = true }
qdrant-client = "^1.2.0"
websockets = "^11.0.3"
weaviate-client = "^3.19.2"
jina = "3.15.2"
sentence-transformers = "^2.2.2"
ctransformers = "^0.2.2"
cohere = "^4.6.0"
[tool.poetry.group.dev.dependencies]

View file

@ -9,7 +9,7 @@ from langflow.api.base import (
PromptValidationResponse,
validate_prompt,
)
from langflow.graph.nodes import VectorStoreNode
from langflow.graph.node.types import VectorStoreNode
from langflow.interface.run import build_graph
from langflow.utils.logger import logger
from langflow.utils.validate import validate_code

View file

@ -42,17 +42,19 @@ documentloaders:
- IMSDbLoader
- GitbookLoader
- ReadTheDocsLoader
- SlackDirectoryLoader
- NotionDirectoryLoader
embeddings:
- OpenAIEmbeddings
- HuggingFaceEmbeddings
- CohereEmbeddings
llms:
- OpenAI
# - AzureOpenAI
- ChatOpenAI
- HuggingFaceHub
- LlamaCpp
- CTransformers
- Cohere
memories:
- ConversationBufferMemory
- ConversationSummaryMemory
@ -63,9 +65,9 @@ prompts:
- ZeroShotPrompt
textsplitters:
- CharacterTextSplitter
- RecursiveCharacterTextSplitter
- LatexTextSplitter
- PythonCodeTextSplitter
# - RecursiveCharacterTextSplitter
# - LatexTextSplitter
# - PythonCodeTextSplitter
toolkits:
- OpenAPIToolkit
- JsonToolkit

View file

@ -1,4 +1,35 @@
from langflow.graph.base import Edge, Node
from langflow.graph.graph import Graph
from langflow.graph.edge.base import Edge
from langflow.graph.graph.base import Graph
from langflow.graph.node.base import Node
from langflow.graph.node.types import (
AgentNode,
ChainNode,
DocumentLoaderNode,
EmbeddingNode,
LLMNode,
MemoryNode,
PromptNode,
TextSplitterNode,
ToolNode,
ToolkitNode,
VectorStoreNode,
WrapperNode,
)
__all__ = ["Graph", "Node", "Edge"]
__all__ = [
"Graph",
"Node",
"Edge",
"AgentNode",
"ChainNode",
"DocumentLoaderNode",
"EmbeddingNode",
"LLMNode",
"MemoryNode",
"PromptNode",
"TextSplitterNode",
"ToolNode",
"ToolkitNode",
"VectorStoreNode",
"WrapperNode",
]

View file

@ -0,0 +1,52 @@
from langflow.utils.logger import logger
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from langflow.graph.node.base import Node
class Edge:
def __init__(self, source: "Node", target: "Node"):
self.source: "Node" = source
self.target: "Node" = target
self.validate_edge()
def validate_edge(self) -> None:
# Validate that the outputs of the source node are valid inputs
# for the target node
self.source_types = self.source.output
self.target_reqs = self.target.required_inputs + self.target.optional_inputs
# Both lists contain strings and sometimes a string contains the value we are
# looking for e.g. comgin_out=["Chain"] and target_reqs=["LLMChain"]
# so we need to check if any of the strings in source_types is in target_reqs
self.valid = any(
output in target_req
for output in self.source_types
for target_req in self.target_reqs
)
# Get what type of input the target node is expecting
self.matched_type = next(
(
output
for output in self.source_types
for target_req in self.target_reqs
if output in target_req
),
None,
)
no_matched_type = self.matched_type is None
if no_matched_type:
logger.debug(self.source_types)
logger.debug(self.target_reqs)
if no_matched_type:
raise ValueError(
f"Edge between {self.source.node_type} and {self.target.node_type} "
f"has no matched type"
)
def __repr__(self) -> str:
return (
f"Edge(source={self.source.id}, target={self.target.id}, valid={self.valid}"
f", matched_type={self.matched_type})"
)

View file

@ -0,0 +1,149 @@
from typing import Dict, List, Type, Union
from langflow.graph.edge.base import Edge
from langflow.graph.graph.constants import NODE_TYPE_MAP
from langflow.graph.node.base import Node
from langflow.graph.node.types import (
FileToolNode,
LLMNode,
ToolkitNode,
)
from langflow.interface.tools.constants import FILE_TOOLS
from langflow.utils import payload
class Graph:
"""A class representing a graph of nodes and edges."""
def __init__(
self,
nodes: List[Dict[str, Union[str, Dict[str, Union[str, List[str]]]]]],
edges: List[Dict[str, str]],
) -> None:
self._nodes = nodes
self._edges = edges
self._build_graph()
def _build_graph(self) -> None:
"""Builds the graph from the nodes and edges."""
self.nodes = self._build_nodes()
self.edges = self._build_edges()
for edge in self.edges:
edge.source.add_edge(edge)
edge.target.add_edge(edge)
# This is a hack to make sure that the LLM node is sent to
# the toolkit node
self._build_node_params()
# remove invalid nodes
self._remove_invalid_nodes()
def _build_node_params(self) -> None:
"""Identifies and handles the LLM node within the graph."""
llm_node = None
for node in self.nodes:
node._build_params()
if isinstance(node, LLMNode):
llm_node = node
if llm_node:
for node in self.nodes:
if isinstance(node, ToolkitNode):
node.params["llm"] = llm_node
def _remove_invalid_nodes(self) -> None:
"""Removes invalid nodes from the graph."""
self.nodes = [
node
for node in self.nodes
if self._validate_node(node)
or (len(self.nodes) == 1 and len(self.edges) == 0)
]
def _validate_node(self, node: Node) -> bool:
"""Validates a node."""
# All nodes that do not have edges are invalid
return len(node.edges) > 0
def get_node(self, node_id: str) -> Union[None, Node]:
"""Returns a node by id."""
return next((node for node in self.nodes if node.id == node_id), None)
def get_nodes_with_target(self, node: Node) -> List[Node]:
"""Returns the nodes connected to a node."""
connected_nodes: List[Node] = [
edge.source for edge in self.edges if edge.target == node
]
return connected_nodes
def build(self) -> List[Node]:
"""Builds the graph."""
# Get root node
root_node = payload.get_root_node(self)
if root_node is None:
raise ValueError("No root node found")
return root_node.build()
def get_node_neighbors(self, node: Node) -> Dict[Node, int]:
"""Returns the neighbors of a node."""
neighbors: Dict[Node, int] = {}
for edge in self.edges:
if edge.source == node:
neighbor = edge.target
if neighbor not in neighbors:
neighbors[neighbor] = 0
neighbors[neighbor] += 1
elif edge.target == node:
neighbor = edge.source
if neighbor not in neighbors:
neighbors[neighbor] = 0
neighbors[neighbor] += 1
return neighbors
def _build_edges(self) -> List[Edge]:
"""Builds the edges of the graph."""
# Edge takes two nodes as arguments, so we need to build the nodes first
# and then build the edges
# if we can't find a node, we raise an error
edges: List[Edge] = []
for edge in self._edges:
source = self.get_node(edge["source"])
target = self.get_node(edge["target"])
if source is None:
raise ValueError(f"Source node {edge['source']} not found")
if target is None:
raise ValueError(f"Target node {edge['target']} not found")
edges.append(Edge(source, target))
return edges
def _get_node_class(self, node_type: str, node_lc_type: str) -> Type[Node]:
"""Returns the node class based on the node type."""
if node_type in FILE_TOOLS:
return FileToolNode
if node_type in NODE_TYPE_MAP:
return NODE_TYPE_MAP[node_type]
return NODE_TYPE_MAP[node_lc_type] if node_lc_type in NODE_TYPE_MAP else Node
def _build_nodes(self) -> List[Node]:
"""Builds the nodes of the graph."""
nodes: List[Node] = []
for node in self._nodes:
node_data = node["data"]
node_type: str = node_data["type"] # type: ignore
node_lc_type: str = node_data["node"]["template"]["_type"] # type: ignore
NodeClass = self._get_node_class(node_type, node_lc_type)
nodes.append(NodeClass(node))
return nodes
def get_children_by_node_type(self, node: Node, node_type: str) -> List[Node]:
"""Returns the children of a node based on the node type."""
children = []
node_types = [node.data["type"]]
if "node" in node.data:
node_types += node.data["node"]["base_classes"]
if node_type in node_types:
children.append(node)
return children

View file

@ -0,0 +1,49 @@
from langflow.graph.node.base import Node
from langflow.graph.node.types import (
AgentNode,
ChainNode,
DocumentLoaderNode,
EmbeddingNode,
LLMNode,
MemoryNode,
PromptNode,
TextSplitterNode,
ToolNode,
ToolkitNode,
VectorStoreNode,
WrapperNode,
)
from langflow.interface.agents.base import agent_creator
from langflow.interface.chains.base import chain_creator
from langflow.interface.document_loaders.base import documentloader_creator
from langflow.interface.embeddings.base import embedding_creator
from langflow.interface.llms.base import llm_creator
from langflow.interface.memories.base import memory_creator
from langflow.interface.prompts.base import prompt_creator
from langflow.interface.text_splitters.base import textsplitter_creator
from langflow.interface.toolkits.base import toolkits_creator
from langflow.interface.tools.base import tool_creator
from langflow.interface.vector_store.base import vectorstore_creator
from langflow.interface.wrappers.base import wrapper_creator
from typing import Dict, Type
DIRECT_TYPES = ["str", "bool", "code", "int", "float", "Any", "prompt"]
NODE_TYPE_MAP: Dict[str, Type[Node]] = {
**{t: PromptNode for t in prompt_creator.to_list()},
**{t: AgentNode for t in agent_creator.to_list()},
**{t: ChainNode for t in chain_creator.to_list()},
**{t: ToolNode for t in tool_creator.to_list()},
**{t: ToolkitNode for t in toolkits_creator.to_list()},
**{t: WrapperNode for t in wrapper_creator.to_list()},
**{t: LLMNode for t in llm_creator.to_list()},
**{t: MemoryNode for t in memory_creator.to_list()},
**{t: EmbeddingNode for t in embedding_creator.to_list()},
**{t: VectorStoreNode for t in vectorstore_creator.to_list()},
**{t: DocumentLoaderNode for t in documentloader_creator.to_list()},
**{t: TextSplitterNode for t in textsplitter_creator.to_list()},
}

View file

@ -0,0 +1,229 @@
from langflow.cache import base as cache_utils
from langflow.graph.node.constants import DIRECT_TYPES
from langflow.interface import loading
from langflow.interface.listing import ALL_TYPES_DICT
from langflow.utils.logger import logger
from langflow.utils.util import sync_to_async
import contextlib
import inspect
import types
import warnings
from typing import Any, Dict, List, Optional
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from langflow.graph.edge.base import Edge
class Node:
def __init__(self, data: Dict, base_type: Optional[str] = None) -> None:
self.id: str = data["id"]
self._data = data
self.edges: List["Edge"] = []
self.base_type: Optional[str] = base_type
self._parse_data()
self._built_object = None
self._built = False
def _parse_data(self) -> None:
self.data = self._data["data"]
self.output = self.data["node"]["base_classes"]
template_dicts = {
key: value
for key, value in self.data["node"]["template"].items()
if isinstance(value, dict)
}
self.required_inputs = [
template_dicts[key]["type"]
for key, value in template_dicts.items()
if value["required"]
]
self.optional_inputs = [
template_dicts[key]["type"]
for key, value in template_dicts.items()
if not value["required"]
]
template_dict = self.data["node"]["template"]
self.node_type = (
self.data["type"] if "Tool" not in self.output else template_dict["_type"]
)
if self.base_type is None:
for base_type, value in ALL_TYPES_DICT.items():
if self.node_type in value:
self.base_type = base_type
break
def _build_params(self):
# Some params are required, some are optional
# but most importantly, some params are python base classes
# like str and others are LangChain objects like LLMChain, BasePromptTemplate
# so we need to be able to distinguish between the two
# The dicts with "type" == "str" are the ones that are python base classes
# and most likely have a "value" key
# So for each key besides "_type" in the template dict, we have a dict
# with a "type" key. If the type is not "str", then we need to get the
# edge that connects to that node and get the Node with the required data
# and use that as the value for the param
# If the type is "str", then we need to get the value of the "value" key
# and use that as the value for the param
template_dict = {
key: value
for key, value in self.data["node"]["template"].items()
if isinstance(value, dict)
}
params = {}
for key, value in template_dict.items():
if key == "_type":
continue
# If the type is not transformable to a python base class
# then we need to get the edge that connects to this node
if value.get("type") == "file":
# Load the type in value.get('suffixes') using
# what is inside value.get('content')
# value.get('value') is the file name
file_name = value.get("value")
content = value.get("content")
type_to_load = value.get("suffixes")
file_path = cache_utils.save_binary_file(
content=content, file_name=file_name, accepted_types=type_to_load
)
params[key] = file_path
elif value.get("type") not in DIRECT_TYPES:
# Get the edge that connects to this node
edges = [
edge
for edge in self.edges
if edge.target == self and edge.matched_type in value["type"]
]
# Get the output of the node that the edge connects to
# if the value['list'] is True, then there will be more
# than one time setting to params[key]
# so we need to append to a list if it exists
# or create a new list if it doesn't
if value["required"] and not edges:
# If a required parameter is not found, raise an error
raise ValueError(
f"Required input {key} for module {self.node_type} not found"
)
elif value["list"]:
# If this is a list parameter, append all sources to a list
params[key] = [edge.source for edge in edges]
elif edges:
# If a single parameter is found, use its source
params[key] = edges[0].source
elif value["required"] or value.get("value"):
# If value does not have value this still passes
# but then gives a keyError
# so we need to check if value has value
new_value = value.get("value")
if new_value is None:
warnings.warn(f"Value for {key} in {self.node_type} is None. ")
if value.get("type") == "int":
with contextlib.suppress(TypeError, ValueError):
new_value = int(new_value) # type: ignore
params[key] = new_value
# Add _type to params
self.params = params
def _build(self):
# The params dict is used to build the module
# it contains values and keys that point to nodes which
# have their own params dict
# When build is called, we iterate through the params dict
# and if the value is a node, we call build on that node
# and use the output of that build as the value for the param
# if the value is not a node, then we use the value as the param
# and continue
# Another aspect is that the node_type is the class that we need to import
# and instantiate with these built params
logger.debug(f"Building {self.node_type}")
# Build each node in the params dict
for key, value in self.params.copy().items():
# Check if Node or list of Nodes and not self
# to avoid recursion
if isinstance(value, Node):
if value == self:
del self.params[key]
continue
result = value.build()
# If the key is "func", then we need to use the run method
if key == "func":
if not isinstance(result, types.FunctionType):
# func can be
# PythonFunction(code='\ndef upper_case(text: str) -> str:\n return text.upper()\n')
# so we need to check if there is an attribute called run
if hasattr(result, "run"):
result = result.run # type: ignore
elif hasattr(result, "get_function"):
result = result.get_function() # type: ignore
elif inspect.iscoroutinefunction(result):
self.params["coroutine"] = result
else:
# turn result which is a function into a coroutine
# so that it can be awaited
self.params["coroutine"] = sync_to_async(result)
self.params[key] = result
elif isinstance(value, list) and all(
isinstance(node, Node) for node in value
):
self.params[key] = []
for node in value:
built = node.build()
if isinstance(built, list):
self.params[key].extend(built)
else:
self.params[key].append(built)
# Get the class from LANGCHAIN_TYPES_DICT
# and instantiate it with the params
# and return the instance
try:
self._built_object = loading.instantiate_class(
node_type=self.node_type,
base_type=self.base_type,
params=self.params,
)
except Exception as exc:
raise ValueError(
f"Error building node {self.node_type}: {str(exc)}"
) from exc
if self._built_object is None:
raise ValueError(f"Node type {self.node_type} not found")
self._built = True
def build(self, force: bool = False) -> Any:
if not self._built or force:
self._build()
return self._built_object
def add_edge(self, edge: "Edge") -> None:
self.edges.append(edge)
def __repr__(self) -> str:
return f"Node(id={self.id}, data={self.data})"
def __eq__(self, __o: object) -> bool:
return self.id == __o.id if isinstance(__o, Node) else False
def __hash__(self) -> int:
return id(self)
def _built_object_repr(self):
return repr(self._built_object)

View file

@ -0,0 +1 @@
DIRECT_TYPES = ["str", "bool", "code", "int", "float", "Any", "prompt"]

View file

@ -0,0 +1,193 @@
from typing import Any, Dict, List, Optional, Union
from langflow.graph.node.base import Node
from langflow.graph.utils import extract_input_variables_from_prompt
class AgentNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="agents")
self.tools: List[ToolNode] = []
self.chains: List[ChainNode] = []
def _set_tools_and_chains(self) -> None:
for edge in self.edges:
source_node = edge.source
if isinstance(source_node, ToolNode):
self.tools.append(source_node)
elif isinstance(source_node, ChainNode):
self.chains.append(source_node)
def build(self, force: bool = False) -> Any:
if not self._built or force:
self._set_tools_and_chains()
# First, build the tools
for tool_node in self.tools:
tool_node.build()
# Next, build the chains and the rest
for chain_node in self.chains:
chain_node.build(tools=self.tools)
self._build()
#! Cannot deepcopy VectorStore, VectorStoreRouter, or SQL agents
if self.node_type in ["VectorStoreAgent", "VectorStoreRouterAgent", "SQLAgent"]:
return self._built_object
return self._built_object
class ToolNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="tools")
class PromptNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="prompts")
def build(
self,
force: bool = False,
tools: Optional[Union[List[Node], List[ToolNode]]] = None,
) -> Any:
if not self._built or force:
if (
"input_variables" not in self.params
or self.params["input_variables"] is None
):
self.params["input_variables"] = []
# Check if it is a ZeroShotPrompt and needs a tool
if "ShotPrompt" in self.node_type:
tools = (
[tool_node.build() for tool_node in tools]
if tools is not None
else []
)
self.params["tools"] = tools
prompt_params = [
key
for key, value in self.params.items()
if isinstance(value, str) and key != "format_instructions"
]
else:
prompt_params = ["template"]
for param in prompt_params:
prompt_text = self.params[param]
variables = extract_input_variables_from_prompt(prompt_text)
self.params["input_variables"].extend(variables)
self.params["input_variables"] = list(set(self.params["input_variables"]))
self._build()
return self._built_object
class ChainNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="chains")
def build(
self,
force: bool = False,
tools: Optional[Union[List[Node], List[ToolNode]]] = None,
) -> Any:
if not self._built or force:
# Check if the chain requires a PromptNode
for key, value in self.params.items():
if isinstance(value, PromptNode):
# Build the PromptNode, passing the tools if available
self.params[key] = value.build(tools=tools, force=force)
self._build()
#! Cannot deepcopy SQLDatabaseChain
if self.node_type in ["SQLDatabaseChain"]:
return self._built_object
return self._built_object
class LLMNode(Node):
built_node_type = None
class_built_object = None
def __init__(self, data: Dict):
super().__init__(data, base_type="llms")
def build(self, force: bool = False) -> Any:
# LLM is different because some models might take up too much memory
# or time to load. So we only load them when we need them.ß
if self.node_type == self.built_node_type:
return self.class_built_object
if not self._built or force:
self._build()
self.built_node_type = self.node_type
self.class_built_object = self._built_object
# Avoid deepcopying the LLM
# that are loaded from a file
return self._built_object
class ToolkitNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="toolkits")
class FileToolNode(ToolNode):
def __init__(self, data: Dict):
super().__init__(data)
class WrapperNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="wrappers")
def build(self, force: bool = False) -> Any:
if not self._built or force:
if "headers" in self.params:
self.params["headers"] = eval(self.params["headers"])
self._build()
return self._built_object
class DocumentLoaderNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="documentloaders")
def _built_object_repr(self):
# This built_object is a list of documents. Maybe we should
# show how many documents are in the list?
if self._built_object:
return f"""{self.node_type}({len(self._built_object)} documents)
Documents: {self._built_object[:3]}..."""
return f"{self.node_type}()"
class EmbeddingNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="embeddings")
class VectorStoreNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="vectorstores")
def _built_object_repr(self):
return "Vector stores can take time to build. It will build on the first query."
class MemoryNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="memory")
class TextSplitterNode(Node):
def __init__(self, data: Dict):
super().__init__(data, base_type="textsplitters")
def _built_object_repr(self):
# This built_object is a list of documents. Maybe we should
# show how many documents are in the list?
if self._built_object:
return f"""{self.node_type}({len(self._built_object)} documents)\nDocuments: {self._built_object[:3]}..."""
return f"{self.node_type}()"

View file

@ -1,6 +1,6 @@
from typing import Dict, List, Optional
from langchain.agents import loading
from langchain.agents import types
from langflow.custom.customs import get_custom_nodes
from langflow.interface.agents.custom import CUSTOM_AGENTS
@ -16,7 +16,7 @@ class AgentCreator(LangChainTypeCreator):
@property
def type_to_loader_dict(self) -> Dict:
if self.type_dict is None:
self.type_dict = loading.AGENT_TO_CLASS
self.type_dict = types.AGENT_TO_CLASS
# Add JsonAgent to the list of agents
for name, agent in CUSTOM_AGENTS.items():
# TODO: validate AgentType

View file

@ -12,6 +12,7 @@ from langchain.agents.load_tools import (
_LLM_TOOLS,
)
from langchain.agents.loading import load_agent_from_config
from langflow.graph import Graph
from langchain.agents.tools import Tool
from langchain.base_language import BaseLanguageModel
from langchain.callbacks.base import BaseCallbackManager
@ -31,7 +32,7 @@ from langflow.utils import util, validate
def instantiate_class(node_type: str, base_type: str, params: Dict) -> Any:
"""Instantiate class from module type and key, and params"""
params = convert_params_to_sets(params)
params = convert_kwargs(params)
if node_type in CUSTOM_AGENTS:
custom_agent = CUSTOM_AGENTS.get(node_type)
if custom_agent:
@ -50,6 +51,16 @@ def convert_params_to_sets(params):
return params
def convert_kwargs(params):
# if *kwargs are passed as a string, convert to dict
# first find any key that has kwargs in it
kwargs_keys = [key for key in params.keys() if "kwargs" in key]
for key in kwargs_keys:
if isinstance(params[key], str):
params[key] = json.loads(params[key])
return params
def instantiate_based_on_type(class_object, base_type, node_type, params):
if base_type == "agents":
return instantiate_agent(class_object, params)
@ -154,7 +165,6 @@ def instantiate_utility(node_type, class_object, params):
def load_flow_from_json(path: str, build=True):
"""Load flow from json file"""
# This is done to avoid circular imports
from langflow.graph import Graph
with open(path, "r", encoding="utf-8") as f:
flow_graph = json.load(f)

View file

@ -6,7 +6,7 @@ from langchain.schema import AgentAction
from langflow.api.callback import AsyncStreamingLLMCallbackHandler, StreamingLLMCallbackHandler # type: ignore
from langflow.cache.base import compute_dict_hash, load_cache, memoize_dict
from langflow.graph.graph import Graph
from langflow.graph import Graph
from langflow.utils.logger import logger

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