Environment Variables

Flowise support different environment variables to configure your instance. You can specify the following variables in the .env file inside packages/server folder. Refer to .env.example file.

VariableDescriptionTypeDefault

PORT

The HTTP port Flowise runs on

Number

3000

FLOWISE_USERNAME

Username to login

String

FLOWISE_PASSWORD

Password to login

String

DEBUG

Print logs onto terminal/console

Boolean

BLOB_STORAGE_PATH

Location where uploaded files are stored

String

your-home-dir/.flowise/storage

APIKEY_PATH

Location where API keys are saved

String

Flowise/packages/server

SECRETKEY_PATH

Location where encryption key (used to encrypt/decrypt credentials) is saved

String

Flowise/packages/server

FLOWISE_SECRETKEY_OVERWRITE

Encryption key to be used instead of the key stored in SECRETKEY_PATH

String

LOG_PATH

Location where log files are stored

String

Flowise/packages/server/logs

LOG_LEVEL

Different log levels for loggers to be saved

Enum String: info, verbose, debug

info

TOOL_FUNCTION_BUILTIN_DEP

NodeJS built-in modules to be used for Tool Function

String

TOOL_FUNCTION_EXTERNAL_DEP

External modules to be used for Tool Function

String

NUMBER_OF_PROXIES

Rate Limit Proxy

Number

CORS_ORIGINS

The allowed origins for all cross-origin HTTP calls

String

IFRAME_ORIGINS

The allowed origins for iframe src embedding

String

MODEL_LIST_CONFIG_JSON

Link to load list of models from your models.json config file

String

Database

VariableDescriptionTypeDefault

DATABASE_TYPE

Type of database to store the flowise data

Enum String: sqlite, mysql, postgres

sqlite

DATABASE_PATH

Location where database is saved (When DATABASE_TYPE is sqlite)

String

your-home-dir/.flowise

DATABASE_HOST

Host URL or IP address (When DATABASE_TYPE is not sqlite)

String

DATABASE_PORT

Database port (When DATABASE_TYPE is not sqlite)

String

DATABASE_USER

Database username (When DATABASE_TYPE is not sqlite)

String

DATABASE_PASSWORD

Database password (When DATABASE_TYPE is not sqlite)

String

DATABASE_NAME

Database name (When DATABASE_TYPE is not sqlite)

String

LangSmith Tracing

Flowise supports LangSmith tracing with the following env variables:

VariableDescriptionType

LANGCHAIN_TRACING_V2

Turn LangSmith tracing ON or OFF

Enum String: true, false

LANGCHAIN_ENDPOINT

LangSmith endpoint

String

LANGCHAIN_API_KEY

LangSmith API Key

String

LANGCHAIN_PROJECT

Project to trace on LangSmith

String

Watch how connect Flowise and LangSmith

Built-In and External Dependencies

For security reasons, by default Tool Function only allow certain dependencies. It's possible to lift that restriction for built-in and external modules by setting the following environment variables:

VariableDescription

TOOL_FUNCTION_BUILTIN_DEP

NodeJS built-in modules to be used for Tool Function

String

TOOL_FUNCTION_EXTERNAL_DEP

External modules to be used for Tool Function

String

.env
# Allows usage of all builtin modules
TOOL_FUNCTION_BUILTIN_DEP=*

# Allows usage of only fs
TOOL_FUNCTION_BUILTIN_DEP=fs

# Allows usage of only crypto and fs
TOOL_FUNCTION_BUILTIN_DEP=crypto,fs

# Allow usage of external npm modules.
TOOL_FUNCTION_EXTERNAL_DEP=axios,moment

Debug and Logs

VariableDescriptionType

DEBUG

Print logs from components

Boolean

LOG_PATH

Location where log files are stored

String

Flowise/packages/server/logs

LOG_LEVEL

Different levels of logs

Enum String: error, info, verbose, debug

info

DEBUG: if set to true, will print logs to terminal/console:

LOG_LEVEL: Different log levels for loggers to be saved. Can be error, info, verbose, or debug. By default it is set to info, only logger.info will be saved to the log files. If you want to have complete details, set to debug.

Credential

Flowise store your third party API keys as encrypted credentials using an encryption key.

By default, a random encryption key will be generated when starting up the application and stored under a file path. This encryption key is then retrieved everytime to decrypt the credentials used within a chatflow. For example, your OpenAI API key, Pinecone API key, etc.

VariableDescriptionType

SECRETKEY_PATH

Location where encryption key (used to encrypt/decrypt credentials) is saved

String

Flowise/packages/server

FLOWISE_SECRETKEY_OVERWRITE

Encryption key to be used instead of the key stored in SECRETKEY_PATH

String

For some reasons, sometimes encryption key might be re-generated or the stored path was changed, this will cause errors like - Credentials could not be decrypted.

To avoid this, you can set your own encryption key as FLOWISE_SECRETKEY_OVERWRITE, so that the same encryption key will be used everytime. There is no restriction on the format, you can set it as any text that you want, or the same as your FLOWISE_PASSWORD.

Credential API Key returned from the UI is not the same length as your original Api Key that you have set. This is a fake prefix string that prevents network spoofing, that's why we are not returning the Api Key back to UI. However, the correct Api Key will be retrieved and used during your interaction with the chatflow.

Models

In some cases, you might want to use custom model on the existing Chat Model and LLM nodes, or restrict access to only certain models.

By default, Flowise pulls the model list from here. However user can create their own models.json file and specify the file path:

VariableDescriptionTypeDefault

MODEL_LIST_CONFIG_JSON

Link to load list of models from your models.json config file

String

How to set environment variables

NPM

You can set all these variables when running Flowise using npx. For example:

npx flowise start --PORT=3000 --DEBUG=true

Docker

You can set all these variables in the .env file inside docker folder. Refer to .env.example file.

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