Skip to content



The web service is configured via env variables. All relative paths below are sub-paths for the installation folder or the /app/ folder for docker. Let's call it the app root folder.

To make configuration a bit easier, use the .env file. The .env file is located under the app root folder. This file is a text file containing key-value pairs of all the settings required by your application. Using the .env file will enable you to set environment variables for the web service without polluting the global environment namespace.

The universal order of precedence for all configuration options is as follows:

  1. set as an environment variable.
  2. set in .env file.
  3. built in defaults.


On some systems, files beginning with a dot are hidden by default. Thus, the .env file can't be seen using the standard file viewers or `ls` like commands.


Option Default Description
FACEAPI_BIND IpAddress:port server binding
FACEAPI_WORKERS 1 number of workers to process requests
FACEAPI_BACKLOG WORKERS x 15 maximum number of requests in a queue awaiting processing
FACEAPI_TIMEOUT 30 number of seconds for the worker to process the request. Workers that are silent for more than this number of seconds are killed and restarted.
FACEAPI_ENABLE_DEMO_WEB_APP "true" serve a demo web app under host root url (ex. localhost:41101/ )
FACEAPI_LIC_URL [docker only] URL to regula.license file for further download, if the mount option is not available

HTTP proxy, used to connect to license service. Do not specify protocol prefix in proxy URL.
Instead of HTTPS_PROXY=http(s)://host:port use HTTPS_PROXY=host:port

If you use your own TSL certs, place them in /etc/ssl/certs folder in Linux and docker envs.

REGULA_RETURN_SYSTEMINFO "true" When set to "false" or 0, there will be no system information returned in the /api/ping response and in the /api/process response.



While HTTPS and CORS can be set directly on the web service, we strongly recommend running reverse-proxy in front and moving a configuration to a proxy itself.

Option Default Description
FACEAPI_CORS_ORIGINS no default, that means the web browser will allow requests to the web server from the same domain only origin, allowed to use API
FACEAPI_CORS_METHODS all methods methods, allowed to invoke the API. Specify comma-separated values as single string (ex. "GET,POST,PUT")
FACEAPI_CORS_HEADERS all headers headers, allowed to read from the API. Specify comma-separated values as a single string (ex. "content-type,date")


For more details, see a great article about CORS from Mozilla.

Option Default Description
FACEAPI_HTTPS "false" if enabled, serve the web service via HTTPS using cert and key, specified in the options below
FACEAPI_CERT_FILE "certs/tls.crt" specifies a file containing cert file
FACEAPI_KEY_FILE "certs/tls.key" specifies a file containing cert key file


Use the key file without a passphrase. A passphrase causes the web server to crash or infinitely await stdin.


There are 3 log types in our service:

  1. access logs are just standard HTTP access logs.
  2. application logs are regular application logs, including errors and debug messages.
  3. processing results logs store the processing input and results in the JSON format.

Space-consuming option, up to a few tens of Mb per request. Disabled by default.

Option Default Description
FACEAPI_LOGS_ACCESS_CONSOLE "true" controls whether to print access logs to a console
FACEAPI_LOGS_ACCESS_FILE "false" controls whether to save access logs to a file
FACEAPI_LOGS_ACCESS_FILE_PATH "logs/access/facesdk-reader-access.log" specifies the custom file path to save access logs if FACEAPI_LOGS_ACCESS_FILE enabled
FACEAPI_LOGS_APP_CONSOLE "true" controls whether to print application logs to a console
FACEAPI_LOGS_APP_FILE "false" controls whether to save application logs to a file
FACEAPI_LOGS_APP_FILE_PATH "logs/app/facesdk-reader-app.log" specifies the custom file path to save access logs if FACEAPI_LOGS_APP_FILE enabled
FACEAPI_PROCESS_RESULTS_LOG_FILE "false" controls whether to save the process requests and results to a file
FACEAPI_PROCESS_RESULTS_LOG_PATH "logs/process" specifies the custom folder to save the processing results. The final output is two files(with _in and _out suffixes), located in endpoint/yyyy/mm/dd/hh folder under specified in this property path
FACEAPI_LOGS_LEVEL "info" specify application logs level. Possible values: "error", "warn", "info", "debug"
FACEAPI_LOGS_FORMATTER "text" possible values: "text"/"json". Some log collectors require logs to be printed in json format.

Access and application logs are printed to stdout.

For access and applications log files, a day-based rotation occurs every midnight UTC. The service keeps the last 30 days of log files.


Option Default Description
FACEAPI_LIVENESS_GEN_2 "false" specify "true" if you want to enable liveness module
FACEAPI_LIVENESS_HIDE_METADATA "false" specify "true" to prevent links to the selfie and video from being added to the GET /liveness?transactionId=<> request


To use liveness module, you need to specify additional settings such as SQL and Storage.


Option Default Description
FACEAPI_ENABLE_IDENTIFICATION "false" specify "true" if you want to enable 1:N identification module
FACEAPI_MATCHING_INPUT_COUNT_PER_TYPE 2 specify a maximum number of matching inputs of each type for matching request
FACEAPI_SEARCH_THRESHOLD 1.0 specify the similarity distance threshold for 1:N search.

The value should be between 0.0 and 2.0, where 0.0 is for returning results for only the most similar persons and 2.0 is for returning results for all the persons, even the dissimilar ones. Learn more


To use identification module, you need to specify additional settings such as SQL, Storage, and Milvus.


The 1:N identification module and liveness module require an sql database to operate. Currently, only the PostgreSQL database system is supported. A database can be specified (recommended way) as a single URL string or a set of options.

Option Default Description
FACEAPI_SQL_URL "postgresql://regula:Regulapasswd#1@" Connection String to the Postgres database. The form of the URL is dialect://user:password@host/dbname[?key=value..]
FACEAPI_SQL_DIALECT "postgresql" dialect is a database type such as mysql, postgresql or sqlite
FACEAPI_SQL_HOST "" database host and port
FACEAPI_SQL_DB "regula_db" database name
FACEAPI_SQL_USER "regula" database user
FACEAPI_SQL_PASSWORD "Regulapasswd#1" database user password


The 1:N identification module and liveness module require S3 compatible object storage.

Option Default Description
FACEAPI_STORAGE_ENDPOINT " or http://localhost:9000" Endpoint to the S3 storage
FACEAPI_STORAGE_ACCESS_KEY "minioadmin" S3 Access Key
FACEAPI_STORAGE_SECRET_KEY "minioadmin" S3 Access Secret
FACEAPI_STORAGE_PERSON_BUCKET_NAME "faceapi-person" Bucket name where person's images are stored. Specified when using the Identification module.
FACEAPI_STORAGE_SESSION_BUCKET_NAME "faceapi-session" Bucket name where session information is stored. Specified when using the Liveness module.
FACEAPI_STORAGE_REGION "us-east-1" Storage Region in case of Amazon S3 usage


If you want to use Full Fuctioanlity of our FaceAPI web service, you should specify both variables - FACEAPI_STORAGE_PERSON_BUCKET_NAME and FACEAPI_STORAGE_SESSION_BUCKET_NAME.


The 1:N identification module requires Milvus to operate. Milvus installation includes Milvus operator, Minio, etcd, pulsar components

Option Default Description
FACEAPI_MILVUS_PORT "19530" Milvus Port