🐛 fix(schemas.py): change class name from "ExportedFlow" to "Exported flow from Langflow" for consistency
The word variable in __main__.py is changed from "LangFlow" to "Langflow" to maintain consistency in naming conventions. Similarly, the class name in schemas.py is changed from "ExportedFlow" to "Exported flow from Langflow" for consistency in naming conventions.
📝 docs(README.md): update project name to "Langflow" for consistency
📝 chore(frontend): update project name in HTML title tag to "Langflow" for consistency
The project name "LangFlow" has been updated to "Langflow" for consistency throughout the documentation and codebase. This change improves readability and maintains a consistent naming convention.
🐛 fix(tabsContext.tsx): fix typo in variable name from LangFlowState to LangflowState
🐛 fix(flow_constants.tsx): fix typo in description from LangFlow to Langflow
🐛 fix(chatModal/index.tsx): fix typo in chat modal title from LangFlow Chat to Langflow Chat
🐛 fix(importModal/index.tsx): fix typo in import modal title from LangFlow Examples to Langflow Examples
🐛 fix(CommunityPage/index.tsx): fix typo in community page text from LangFlow to Langflow
🐛 fix(FlowPage/index.tsx): fix typo in flow page text from LangFlow to Langflow
The changes were made to fix typos in various parts of the codebase where the name "LangFlow" was misspelled as "Langflow". This improves consistency and ensures that the correct name is used throughout the application.
The load_params() function is added to load the parameters from the environment variables. This allows for more flexibility and configurability of the application by allowing the parameters to be set via environment variables.
🔧 chore(README.md): reformat and update CLI section for clarity and consistency
The README.md file has been updated to improve the organization and readability of the document. The table of contents has been updated to include all relevant sections. Headings have been adjusted to provide a clear hierarchy and improve navigation. The CLI section has been reformatted and updated to provide clearer instructions and explanations.
The README file now includes a new section that provides information on how to use the command-line interface (CLI) of Langflow. It explains the available options and their usage. Additionally, a section on environment variables is added, which explains how to configure CLI options using environment variables. This provides users with more flexibility in customizing the behavior of the Langflow server.
🌟 feat(__main__.py): add support for environment variables to configure serve function
The serve function in __main__.py has been refactored to use environment variables for configuration options. The following configuration options now support environment variables: host, workers, port, log_level, log_file, path, open_browser, and remove_api_keys. This change allows for greater flexibility and easier configuration of the serve function by using environment variables instead of command line options.
The .env.example file has been updated to include example values and new configuration options. The LANGFLOW_DATABASE_URL example has been updated to include both Postgres and SQLite examples. New configuration options have been added for cache type, server host, worker processes, server port, logging level, log file path, frontend directory path, whether to open the browser after starting the server, and whether to remove API keys from the projects saved in the database. These changes provide more flexibility and customization options for the application.
The environment variable name is changed from LANGFLOW_DATABASE_URL to langflow_database_url to maintain consistency with the naming conventions used in the codebase. This ensures that the code is more readable and easier to understand.
The `cache` option has been changed to use the `LANGFLOW_LANGCHAIN_CACHE` environment variable instead of `LANGCHAIN_CACHE` for clarity and consistency. Similarly, the `database_url` option now uses the `LANGFLOW_DATABASE_URL` environment variable instead of the previous behavior of using a local SQLite database by default. This change allows for more flexibility in configuring the cache and database connections.
🔧 chore(utils.py): refactor `setup_llm_caching` to extract cache setup logic into a separate function for better modularity and readability
The variable `cache_class` has been renamed to `cache_type` to improve clarity and consistency with the naming conventions. The `setup_llm_caching` function has been refactored to extract the cache setup logic into a separate function called `set_langchain_cache`. This improves modularity and readability of the code.
The .env.example file is added to provide an example of how to configure the .env file. It includes a commented out example of a PostgreSQL database URL and a new line is added with the langflow_database_url set to a SQLite database URL. This allows users to easily copy the file to .env and modify the values according to their needs.
The `database_url` setting is now declared as an optional string (`Optional[str]`) instead of a required string. This change allows the application to handle cases where the `database_url` is not provided, providing more flexibility in the configuration.
The os module is imported to make use of the os.getenv() function. The loading of the environment variables is refactored to check for the presence of the "langflow_database_url" environment variable and use it as the value for the database_url variable if it is not provided. This allows for more flexibility in configuring the database URL. Additionally, the loading of environment variables is refactored to allow overriding with a .env file if the env_file parameter is provided. This allows for easier configuration management.
🔧 chore(__main__.py): import os module and refactor loading of environment variables
The noqa comments have been added to the import statements to ignore the linting errors raised by the linter. This ensures that the linting errors related to the imports are ignored and the code can be properly executed without any issues.
✨ feat(base.py): add error handling when creating database and tables to provide more informative error messages
The code now checks if the `settings.database_url` is provided and raises a `RuntimeError` if it is not. This ensures that the application does not attempt to create a database connection without a valid URL. Additionally, error handling has been added when creating the database and tables. If an exception occurs during the creation process, an error message is logged and a `RuntimeError` is raised with a more informative error message. This helps in identifying and resolving any issues related to the database creation process.
⬆️ chore(pyproject.toml): update fastapi dependency to version 0.99.0
The package version has been updated from 0.2.10 to 0.2.11. This change reflects the new version of the package. Additionally, the fastapi dependency has been updated from version 0.98.0 to 0.99.0 to ensure compatibility with the latest version of fastapi.
📝 docs(chat.py): explain the need for building the root node before the rest of the graph
The root node in the graph was not being built before the rest of the graph, which caused issues when certain nodes required parameters that were not connected to them. By adding the missing build step for the root node, we ensure that all necessary connections and parameters are properly set up before building the rest of the graph. This improves the overall functionality and reliability of the chat module.
📝 docs(chat.py): explain the need for building the root node before the rest of the graph
The root node in the graph was not being built before the rest of the graph, which caused issues when certain nodes required parameters that were not connected to them. By adding the missing build step for the root node, we ensure that all necessary connections and parameters are properly set up before building the rest of the graph. This improves the overall functionality and reliability of the chat module.
The debug log statement "Database and tables created" has been removed as it is unnecessary. Instead, a success log statement "Database and tables created successfully" has been added to indicate that the database and tables were created without any errors. This improves the clarity of the log messages and provides better feedback during the database setup process.
The environment variable prefix used in the settings.py file has been updated from "LANGFLOW_" to "langflow_" to maintain consistency with the naming conventions used in the project. This change ensures that all environment variables related to the Langflow backend have a consistent prefix.
Added the documentation link for the PyPDFDirectoryLoader in the config.yaml file. This allows users to access the documentation on how to use the PyPDFDirectoryLoader for loading PDF documents.
The logger.debug() statements are added to provide more visibility into the process of creating the database and tables. This can be helpful for debugging and troubleshooting purposes.
The conditional statements in the useEffect hook were formatted to improve code readability. By breaking the statements into multiple lines and adding proper indentation, it is easier to understand the logic. This change does not affect the functionality of the code.
The error handling in the WebSocket connection has been refactored to improve readability and error handling. Instead of nesting the `getHealth()` promise inside the `onerror` callback, it has been extracted to a separate `.then()` block. This allows for better separation of concerns and makes the code more readable. Additionally, the error handling logic has been updated to properly set the `setErrorData` state when the backend fails to respond.
The change is made to improve the logging of exceptions. Using logger.exception instead of logger.error allows the logger to log the full traceback of the exception, providing more detailed information for debugging purposes.
🔧 refactor(documentloaders.py): remove redundant code for adding fields in DocumentLoaderFrontNode class
The code in the DocumentLoaderFrontNode class has been refactored to extract the logic for building directory loader fields into a separate function called build_directory_loader_fields(). This improves code readability and maintainability by separating concerns and reducing duplication. The redundant code for adding fields in the DocumentLoaderFrontNode class has also been removed.
