🐛 fix(flows.py): change json.loads to orjson.loads for improved performance and compatibility with orjson library

🐛 fix(schemas.py): change json.dumps to orjson_dumps for improved performance and compatibility with orjson library
🐛 fix(utils.py): change json.loads to orjson.loads for improved performance and compatibility with orjson library
🐛 fix(loading.py): change json.loads to orjson.loads for improved performance and compatibility with orjson library
🐛 fix(utils.py): change json.loads to orjson.loads for improved performance and compatibility with orjson library
🐛 fix(vector_store.py): change json.loads to orjson.loads for improved performance and compatibility with orjson library
🐛 fix(types.py): change json.loads to orjson.loads for improved performance and compatibility with orjson library
🐛 fix(process.py): change json.loads to orjson.loads for improved performance and compatibility with orjson library
✨ feat(server.ts): change port variable case from lowercase port to uppercase PORT to improve semantics
✨ feat(server.ts): add support for process.env.PORT environment variable to be able to run app on a configurable port

🔧 fix(base.py): import orjson instead of json to improve performance and compatibility
🔧 fix(frontend_node/llms.py): use orjson_dumps instead of json.dumps to improve performance and compatibility
🔧 fix(frontend_node/utilities.py): use orjson_dumps instead of json.dumps to improve performance and compatibility
🔧 fix(test_cache.py): import orjson and use orjson_dumps instead of json.dumps to improve performance and compatibility

🔧 fix(test_database.py): import correct json encoder and decoder functions to fix import errors
🔧 fix(test_database.py): replace json.dumps and json.loads with orjson_dumps and orjson.loads for better performance and compatibility
🔧 fix(test_loading.py): remove unused import statement

src/backend/langflow/api/v1/flows.py

@@ -1,5 +1,6 @@
 from typing import List
 from uuid import UUID
+from fastapi.encoders import jsonable_encoder
 from langflow.settings import settings
 from langflow.api.utils import remove_api_keys
 from langflow.api.v1.schemas import FlowListCreate, FlowListRead
@@ -11,12 +12,11 @@ from langflow.database.models.flow import (
     FlowUpdate,
 )
 from langflow.database.base import get_session
+import orjson
 from sqlmodel import Session, select
 from fastapi import APIRouter, Depends, HTTPException
-from fastapi.encoders import jsonable_encoder
 
 from fastapi import File, UploadFile
-import json
 
 # build router
 router = APIRouter(prefix="/flows", tags=["Flows"])
@@ -105,7 +105,7 @@ async def upload_file(
 ):
     """Upload flows from a file."""
     contents = await file.read()
-    data = json.loads(contents)
+    data = orjson.loads(contents)
     if "flows" in data:
         flow_list = FlowListCreate(**data)
     else:

src/backend/langflow/api/v1/schemas.py

@@ -1,9 +1,9 @@
 from enum import Enum
 from pathlib import Path
 from typing import Any, Dict, List, Optional, Union
+from langflow.database.models.base import orjson_dumps
 from langflow.database.models.flow import FlowCreate, FlowRead
 from pydantic import BaseModel, Field, validator
-import json
 
 
 class BuildStatus(Enum):
@@ -115,7 +115,7 @@ class StreamData(BaseModel):
     data: dict
 
     def __str__(self) -> str:
-        return f"event: {self.event}\ndata: {json.dumps(self.data)}\n\n"
+        return f"event: {self.event}\ndata: {orjson_dumps(self.data)}\n\n"
 
 
 class CustomComponentCode(BaseModel):

src/backend/langflow/cache/utils.py

@@ -2,13 +2,13 @@ import base64
 import contextlib
 import functools
 import hashlib
-import json
 import os
 import tempfile
 from collections import OrderedDict
 from pathlib import Path
 from typing import Any, Dict
 from appdirs import user_cache_dir
+from langflow.database.models.base import orjson_dumps
 
 CACHE: Dict[str, Any] = {}
 
@@ -76,7 +76,8 @@ def clear_old_cache_files(max_cache_size: int = 3):
 def compute_dict_hash(graph_data):
     graph_data = filter_json(graph_data)
 
-    cleaned_graph_json = json.dumps(graph_data, sort_keys=True)
+    cleaned_graph_json = orjson_dumps(graph_data, sort_keys=True)
+
     return hashlib.sha256(cleaned_graph_json.encode("utf-8")).hexdigest()
 
 

src/backend/langflow/chat/manager.py

@@ -9,7 +9,6 @@ from langflow.utils.logger import logger
 
 
 import asyncio
-import json
 from typing import Any, Dict, List
 
 from langflow.cache.flow import InMemoryCache
@@ -186,7 +185,7 @@ class ChatManager:
             while True:
                 json_payload = await websocket.receive_json()
                 try:
-                    payload = json.loads(json_payload)
+                    payload = orjson.loads(json_payload)
                 except TypeError:
                     payload = json_payload
                 if "clear_history" in payload:

src/backend/langflow/database/models/base.py

@@ -2,9 +2,20 @@ from sqlmodel import SQLModel
 import orjson
 
 
-def orjson_dumps(v, *, default):
+def orjson_dumps(v, *, default=None, sort_keys=False, indent_2=True):
-    # orjson.dumps returns bytes, to match standard json.dumps we need to decode
+    option = orjson.OPT_SORT_KEYS if sort_keys else None
-    return orjson.dumps(v, default=default).decode()
+    if indent_2:
+        # orjson.dumps returns bytes, to match standard json.dumps we need to decode
+        # option
+        # To modify how data is serialized, specify option. Each option is an integer constant in orjson.
+        # To specify multiple options, mask them together, e.g., option=orjson.OPT_STRICT_INTEGER | orjson.OPT_NAIVE_UTC
+        if option is None:
+            option = orjson.OPT_INDENT_2
+        else:
+            option |= orjson.OPT_INDENT_2
+    if default is None:
+        return orjson.dumps(v, option=option).decode()
+    return orjson.dumps(v, default=default, option=option).decode()
 
 
 class SQLModelSerializable(SQLModel):

src/backend/langflow/interface/agents/prebuilt.py

@@ -1,7 +1,6 @@
 from langchain import LLMChain
 from langchain.agents import AgentExecutor, ZeroShotAgent
-from langchain.agents.agent_toolkits.json.prompt import JSON_PREFIX, JSON_SUFFIX
+from langchain.agents.agent_toolkits.json.prompt import JSON_SUFFIX
-from langchain.agents.agent_toolkits.json.toolkit import JsonToolkit
 from langchain.agents.mrkl.prompt import FORMAT_INSTRUCTIONS
 from langchain.base_language import BaseLanguageModel
 

src/backend/langflow/interface/initialize/loading.py

@@ -1,4 +1,4 @@
-import json
+import orjson
 from typing import Any, Callable, Dict, Sequence, Type
 
 from langchain.agents import agent as agent_module
@@ -66,7 +66,7 @@ def convert_kwargs(params):
     for key in kwargs_keys:
         if isinstance(params[key], str):
             try:
-                params[key] = json.loads(params[key])
+                params[key] = orjson.loads(params[key])
             except json.JSONDecodeError:
                 # if the string is not a valid json string, we will
                 # remove the key from the params
@@ -306,7 +306,7 @@ def instantiate_documentloader(class_object: Type[BaseLoader], params: Dict):
     metadata = params.pop("metadata", None)
     if metadata and isinstance(metadata, str):
         try:
-            metadata = json.loads(metadata)
+            metadata = orjson.loads(metadata)
         except json.JSONDecodeError as exc:
             raise ValueError(
                 "The metadata you provided is not a valid JSON string."

src/backend/langflow/interface/initialize/utils.py

@@ -1,5 +1,7 @@
 import contextlib
 import json
+from langflow.database.models.base import orjson_dumps
+import orjson
 from typing import Any, Dict, List
 
 from langchain.agents import ZeroShotAgent
@@ -95,9 +97,11 @@ def format_content(variable):
 
 def try_to_load_json(content):
     with contextlib.suppress(json.JSONDecodeError):
-        content = json.loads(content)
+        content = orjson.loads(content)
         if isinstance(content, list):
             content = ",".join([str(item) for item in content])
+        else:
+            content = orjson_dumps(content)
     return content
 
 

src/backend/langflow/interface/initialize/vector_store.py

@@ -1,4 +1,3 @@
-import json
 from typing import Any, Callable, Dict, Type
 from langchain.vectorstores import (
     Pinecone,
@@ -92,7 +91,7 @@ def initialize_weaviate(class_object: Type[Weaviate], params: dict):
         import weaviate  # type: ignore
 
         client_kwargs_json = params.get("client_kwargs", "{}")
-        client_kwargs = json.loads(client_kwargs_json)
+        client_kwargs = orjson.loads(client_kwargs_json)
         client_params = {
             "url": params.get("weaviate_url"),
         }

src/backend/langflow/interface/types.py

@@ -190,17 +190,16 @@ def build_frontend_node(custom_component: CustomComponent):
 
 def update_attributes(frontend_node, template_config):
     """Update the display name and description of a frontend node"""
-    if "display_name" in template_config:
+    attributes = [
-        frontend_node["display_name"] = template_config["display_name"]
+        "display_name",
-
+        "description",
-    if "description" in template_config:
+        "beta",
-        frontend_node["description"] = template_config["description"]
+        "documentation",
-
+        "output_types",
-    if "beta" in template_config:
+    ]
-        frontend_node["beta"] = template_config["beta"]
+    for attribute in attributes:
-
+        if attribute in template_config:
-    if "documentation" in template_config:
+            frontend_node[attribute] = template_config[attribute]
-        frontend_node["documentation"] = template_config["documentation"]
 
 
 def build_field_config(custom_component: CustomComponent):

src/backend/langflow/processing/process.py

@@ -1,6 +1,6 @@
+import json
 from pathlib import Path
 from langchain.schema import AgentAction
-import json
 from langflow.interface.run import (
     build_sorted_vertices_with_caching,
     get_memory_key,

src/backend/langflow/services/settings/base.py

@@ -0,0 +1,222 @@
+import contextlib
+import orjson
+import os
+from shutil import copy2
+from typing import Optional, List
+from pathlib import Path
+
+import yaml
+from pydantic import BaseSettings, root_validator, validator
+from langflow.utils.logger import logger
+
+# BASE_COMPONENTS_PATH = str(Path(__file__).parent / "components")
+BASE_COMPONENTS_PATH = str(Path(__file__).parent.parent.parent / "components")
+
+
+class Settings(BaseSettings):
+    CHAINS: dict = {}
+    AGENTS: dict = {}
+    PROMPTS: dict = {}
+    LLMS: dict = {}
+    TOOLS: dict = {}
+    MEMORIES: dict = {}
+    EMBEDDINGS: dict = {}
+    VECTORSTORES: dict = {}
+    DOCUMENTLOADERS: dict = {}
+    WRAPPERS: dict = {}
+    RETRIEVERS: dict = {}
+    TOOLKITS: dict = {}
+    TEXTSPLITTERS: dict = {}
+    UTILITIES: dict = {}
+    OUTPUT_PARSERS: dict = {}
+    CUSTOM_COMPONENTS: dict = {}
+
+    # Define the default LANGFLOW_DIR
+    CONFIG_DIR: Optional[str] = None
+
+    DEV: bool = False
+    DATABASE_URL: Optional[str] = None
+    CACHE: str = "InMemoryCache"
+    REMOVE_API_KEYS: bool = False
+    COMPONENTS_PATH: List[str] = []
+
+    @validator("CONFIG_DIR", pre=True, allow_reuse=True)
+    def set_langflow_dir(cls, value):
+        if not value:
+            import appdirs
+
+            # Define the app name and author
+            app_name = "langflow"
+            app_author = "logspace"
+
+            # Get the cache directory for the application
+            cache_dir = appdirs.user_cache_dir(app_name, app_author)
+
+            # Create a .langflow directory inside the cache directory
+            value = Path(cache_dir)
+            value.mkdir(parents=True, exist_ok=True)
+
+        if isinstance(value, str):
+            value = Path(value)
+        if not value.exists():
+            value.mkdir(parents=True, exist_ok=True)
+
+        return str(value)
+
+    @validator("DATABASE_URL", pre=True)
+    def set_database_url(cls, value, values):
+        if not value:
+            logger.debug(
+                "No database_url provided, trying LANGFLOW_DATABASE_URL env variable"
+            )
+            if langflow_database_url := os.getenv("LANGFLOW_DATABASE_URL"):
+                value = langflow_database_url
+                logger.debug("Using LANGFLOW_DATABASE_URL env variable.")
+            else:
+                logger.debug("No DATABASE_URL env variable, using sqlite database")
+                # Originally, we used sqlite:///./langflow.db
+                # so we need to migrate to the new format
+                # if there is a database in that location
+                if not values["CONFIG_DIR"]:
+                    raise ValueError(
+                        "CONFIG_DIR not set, please set it or provide a DATABASE_URL"
+                    )
+
+                new_path = f"{values['CONFIG_DIR']}/langflow.db"
+                if Path("./langflow.db").exists():
+                    if Path(new_path).exists():
+                        logger.debug(f"Database already exists at {new_path}, using it")
+                    else:
+                        try:
+                            logger.debug("Copying existing database to new location")
+                            copy2("./langflow.db", new_path)
+                            logger.debug(f"Copied existing database to {new_path}")
+                        except Exception:
+                            logger.error("Failed to copy database, using default path")
+                            new_path = "./langflow.db"
+
+                value = f"sqlite:///{new_path}"
+
+        return value
+
+    @validator("COMPONENTS_PATH", pre=True)
+    def set_components_path(cls, value):
+        if os.getenv("LANGFLOW_COMPONENTS_PATH"):
+            logger.debug("Adding LANGFLOW_COMPONENTS_PATH to components_path")
+            langflow_component_path = os.getenv("LANGFLOW_COMPONENTS_PATH")
+            if (
+                Path(langflow_component_path).exists()
+                and langflow_component_path not in value
+            ):
+                if isinstance(langflow_component_path, list):
+                    for path in langflow_component_path:
+                        if path not in value:
+                            value.append(path)
+                    logger.debug(
+                        f"Extending {langflow_component_path} to components_path"
+                    )
+                elif langflow_component_path not in value:
+                    value.append(langflow_component_path)
+                    logger.debug(
+                        f"Appending {langflow_component_path} to components_path"
+                    )
+
+        if not value:
+            value = [BASE_COMPONENTS_PATH]
+            logger.debug("Setting default components path to components_path")
+        elif BASE_COMPONENTS_PATH not in value:
+            value.append(BASE_COMPONENTS_PATH)
+            logger.debug("Adding default components path to components_path")
+
+        logger.debug(f"Components path: {value}")
+        return value
+
+    class Config:
+        validate_assignment = True
+        extra = "ignore"
+        env_prefix = "LANGFLOW_"
+
+    @root_validator(allow_reuse=True)
+    def validate_lists(cls, values):
+        for key, value in values.items():
+            if key != "dev" and not value:
+                values[key] = []
+        return values
+
+    def update_from_yaml(self, file_path: str, dev: bool = False):
+        new_settings = load_settings_from_yaml(file_path)
+        self.CHAINS = new_settings.CHAINS or {}
+        self.AGENTS = new_settings.AGENTS or {}
+        self.PROMPTS = new_settings.PROMPTS or {}
+        self.LLMS = new_settings.LLMS or {}
+        self.TOOLS = new_settings.TOOLS or {}
+        self.MEMORIES = new_settings.MEMORIES or {}
+        self.WRAPPERS = new_settings.WRAPPERS or {}
+        self.TOOLKITS = new_settings.TOOLKITS or {}
+        self.TEXTSPLITTERS = new_settings.TEXTSPLITTERS or {}
+        self.UTILITIES = new_settings.UTILITIES or {}
+        self.EMBEDDINGS = new_settings.EMBEDDINGS or {}
+        self.VECTORSTORES = new_settings.VECTORSTORES or {}
+        self.DOCUMENTLOADERS = new_settings.DOCUMENTLOADERS or {}
+        self.RETRIEVERS = new_settings.RETRIEVERS or {}
+        self.OUTPUT_PARSERS = new_settings.OUTPUT_PARSERS or {}
+        self.CUSTOM_COMPONENTS = new_settings.CUSTOM_COMPONENTS or {}
+        self.COMPONENTS_PATH = new_settings.COMPONENTS_PATH or []
+        self.DEV = dev
+
+    def update_settings(self, **kwargs):
+        logger.debug("Updating settings")
+        for key, value in kwargs.items():
+            # value may contain sensitive information, so we don't want to log it
+            if not hasattr(self, key):
+                logger.debug(f"Key {key} not found in settings")
+                continue
+            logger.debug(f"Updating {key}")
+            if isinstance(getattr(self, key), list):
+                # value might be a '[something]' string
+                with contextlib.suppress(json.decoder.JSONDecodeError):
+                    value = orjson.loads(str(value))
+                if isinstance(value, list):
+                    for item in value:
+                        if isinstance(item, Path):
+                            item = str(item)
+                        if item not in getattr(self, key):
+                            getattr(self, key).append(item)
+                    logger.debug(f"Extended {key}")
+                else:
+                    if isinstance(value, Path):
+                        value = str(value)
+                    if value not in getattr(self, key):
+                        getattr(self, key).append(value)
+                        logger.debug(f"Appended {key}")
+
+            else:
+                setattr(self, key, value)
+                logger.debug(f"Updated {key}")
+            logger.debug(f"{key}: {getattr(self, key)}")
+
+
+def save_settings_to_yaml(settings: Settings, file_path: str):
+    with open(file_path, "w") as f:
+        settings_dict = settings.dict()
+        yaml.dump(settings_dict, f)
+
+
+def load_settings_from_yaml(file_path: str) -> Settings:
+    # Check if a string is a valid path or a file name
+    if "/" not in file_path:
+        # Get current path
+        current_path = os.path.dirname(os.path.abspath(__file__))
+
+        file_path = os.path.join(current_path, file_path)
+
+    with open(file_path, "r") as f:
+        settings_dict = yaml.safe_load(f)
+        settings_dict = {k.upper(): v for k, v in settings_dict.items()}
+
+        for key in settings_dict:
+            if key not in Settings.__fields__.keys():
+                raise KeyError(f"Key {key} not found in settings")
+            logger.debug(f"Loading {len(settings_dict[key])} {key} from {file_path}")
+
+    return Settings(**settings_dict)

src/backend/langflow/settings.py

@@ -1,5 +1,5 @@
 import contextlib
-import json
+import orjson
 import os
 from typing import Optional, List
 from pathlib import Path
@@ -126,7 +126,7 @@ class Settings(BaseSettings):
             if isinstance(getattr(self, key), list):
                 # value might be a '[something]' string
                 with contextlib.suppress(json.decoder.JSONDecodeError):
-                    value = json.loads(str(value))
+                    value = orjson.loads(str(value))
                 if isinstance(value, list):
                     for item in value:
                         if isinstance(item, Path):

src/backend/langflow/template/frontend_node/llms.py

@@ -1,5 +1,5 @@
-import json
 from typing import Optional
+from langflow.database.models.base import orjson_dumps
 
 from langflow.template.field.base import TemplateField
 from langflow.template.frontend_node.base import FrontendNode
@@ -89,7 +89,7 @@ class LLMFrontendNode(FrontendNode):
         if field.name == "config":
             field.show = True
             field.advanced = True
-            field.value = json.dumps(CTRANSFORMERS_DEFAULT_CONFIG, indent=2)
+            field.value = orjson_dumps(CTRANSFORMERS_DEFAULT_CONFIG, indent_2=True)
 
     @staticmethod
     def format_field(field: TemplateField, name: Optional[str] = None) -> None:

src/backend/langflow/template/frontend_node/utilities.py

@@ -1,6 +1,6 @@
 import ast
-import json
 from typing import Optional
+from langflow.database.models.base import orjson_dumps
 
 from langflow.template.field.base import TemplateField
 from langflow.template.frontend_node.base import FrontendNode
@@ -22,4 +22,4 @@ class UtilitiesFrontendNode(FrontendNode):
 
         if isinstance(field.value, dict):
             field.field_type = "code"
-            field.value = json.dumps(field.value, indent=4)
+            field.value = orjson_dumps(field.value)

tests/test_cache.py

@@ -1,4 +1,6 @@
 import json
+from langflow.database.models.base import orjson_dumps
+import orjson
 from langflow.graph import Graph
 
 import pytest
@@ -63,9 +65,9 @@ def test_cache_size_limit(basic_data_graph):
         nodes = modified_data_graph["nodes"]
         node_id = nodes[0]["id"]
         # Now we replace all instances ode node_id with a new id in the json
-        json_string = json.dumps(modified_data_graph)
+        json_string = orjson_dumps(modified_data_graph)
         modified_json_string = json_string.replace(node_id, f"{node_id}_{i}")
-        modified_data_graph_new_id = json.loads(modified_json_string)
+        modified_data_graph_new_id = orjson.loads(modified_json_string)
         build_langchain_object_with_caching(modified_data_graph_new_id)
 
     assert len(build_langchain_object_with_caching.cache) == 10

tests/test_database.py

@@ -1,11 +1,12 @@
-import json
+from fastapi.encoders import jsonable_encoder
+from langflow.database.models.base import orjson_dumps
+import orjson
 import pytest
 
 from uuid import UUID, uuid4
 from sqlalchemy.orm import Session
 
 from fastapi.testclient import TestClient
-from fastapi.encoders import jsonable_encoder
 
 from langflow.api.v1.schemas import FlowListCreate
 from langflow.database.models.flow import Flow, FlowCreate, FlowUpdate
@@ -23,7 +24,7 @@ def json_style():
     # color: str = Field(index=True)
     # emoji: str = Field(index=False)
     # flow_id: UUID = Field(default=None, foreign_key="flow.id")
-    return json.dumps(
+    return orjson_dumps(
         {
             "color": "red",
             "emoji": "👍",
@@ -32,7 +33,7 @@ def json_style():
 
 
 def test_create_flow(client: TestClient, json_flow: str):
-    flow = json.loads(json_flow)
+    flow = orjson.loads(json_flow)
     data = flow["data"]
     flow = FlowCreate(name="Test Flow", description="description", data=data)
     response = client.post("api/v1/flows/", json=flow.dict())
@@ -48,7 +49,7 @@ def test_create_flow(client: TestClient, json_flow: str):
 
 
 def test_read_flows(client: TestClient, json_flow: str):
-    flow_data = json.loads(json_flow)
+    flow_data = orjson.loads(json_flow)
     data = flow_data["data"]
     flow = FlowCreate(name="Test Flow", description="description", data=data)
     response = client.post("api/v1/flows/", json=flow.dict())
@@ -89,7 +90,7 @@ def test_read_flows(client: TestClient, json_flow: str):
 
 
 def test_read_flow(client: TestClient, json_flow: str):
-    flow = json.loads(json_flow)
+    flow = orjson.loads(json_flow)
     data = flow["data"]
     flow = FlowCreate(name="Test Flow", description="description", data=data)
     response = client.post("api/v1/flows/", json=flow.dict())
@@ -115,7 +116,7 @@ def test_read_flow(client: TestClient, json_flow: str):
 
 
 def test_update_flow(client: TestClient, json_flow: str):
-    flow = json.loads(json_flow)
+    flow = orjson.loads(json_flow)
     data = flow["data"]
 
     flow = FlowCreate(name="Test Flow", description="description", data=data)
@@ -136,7 +137,7 @@ def test_update_flow(client: TestClient, json_flow: str):
 
 
 def test_delete_flow(client: TestClient, json_flow: str):
-    flow = json.loads(json_flow)
+    flow = orjson.loads(json_flow)
     data = flow["data"]
     flow = FlowCreate(name="Test Flow", description="description", data=data)
     response = client.post("api/v1/flows/", json=flow.dict())
@@ -147,7 +148,7 @@ def test_delete_flow(client: TestClient, json_flow: str):
 
 
 def test_create_flows(client: TestClient, session: Session, json_flow: str):
-    flow = json.loads(json_flow)
+    flow = orjson.loads(json_flow)
     data = flow["data"]
     # Create test data
     flow_list = FlowListCreate(
@@ -172,7 +173,7 @@ def test_create_flows(client: TestClient, session: Session, json_flow: str):
 
 
 def test_upload_file(client: TestClient, session: Session, json_flow: str):
-    flow = json.loads(json_flow)
+    flow = orjson.loads(json_flow)
     data = flow["data"]
     # Create test data
     flow_list = FlowListCreate(
@@ -181,7 +182,7 @@ def test_upload_file(client: TestClient, session: Session, json_flow: str):
             FlowCreate(name="Flow 2", description="description", data=data),
         ]
     )
-    file_contents = json.dumps(flow_list.dict())
+    file_contents = orjson_dumps(flow_list.dict())
     response = client.post(
         "api/v1/flows/upload/",
         files={"file": ("examples.json", file_contents, "application/json")},
@@ -200,7 +201,7 @@ def test_upload_file(client: TestClient, session: Session, json_flow: str):
 
 
 def test_download_file(client: TestClient, session: Session, json_flow):
-    flow = json.loads(json_flow)
+    flow = orjson.loads(json_flow)
     data = flow["data"]
     # Create test data
     flow_list = FlowListCreate(
@@ -241,7 +242,7 @@ def test_get_nonexistent_flow(client: TestClient):
 
 
 def test_update_flow_idempotency(client: TestClient, json_flow: str):
-    flow_data = json.loads(json_flow)
+    flow_data = orjson.loads(json_flow)
     data = flow_data["data"]
     flow_data = FlowCreate(name="Test Flow", description="description", data=data)
     response = client.post("api/v1/flows/", json=flow_data.dict())
@@ -253,7 +254,7 @@ def test_update_flow_idempotency(client: TestClient, json_flow: str):
 
 
 def test_update_nonexistent_flow(client: TestClient, json_flow: str):
-    flow_data = json.loads(json_flow)
+    flow_data = orjson.loads(json_flow)
     data = flow_data["data"]
     uuid = uuid4()
     updated_flow = FlowCreate(

tests/test_loading.py

@@ -1,5 +1,4 @@
 import json
-
 import pytest
 from langchain.chains.base import Chain
 from langflow.processing.process import load_flow_from_json