System Configuration

Appmixer offers a variety of system configuration options for advanced use cases, allowing you to finely tune the behavior of its underlying workflow and integration engine. To access and set these configuration options, navigate through the Appmixer Backoffice interface to the "System -> System Configuration" page.

Please be aware that certain configuration changes may not take immediate effect without restarting the Appmixer engine. For customers with a Self-Managed Appmixer installation, restarting the engine can be done at your convenience to apply the new settings. For those with a hosted Appmixer tenant, it's advisable to reach out to our support team at [e-mail]. Our team can provide guidance on how to effectively set these configuration options and assist with any necessary engine restarts to ensure your configurations are applied as intended.

Configuration options

Below is a list of available configuration options, accompanied by a brief explanation for each and their default values. These defaults are used by Appmixer in instances where no specific value is provided:

Key	Detail	Default value	Needs restart
API_USER_CREATE_SCOPE	By default, the POST /user API is open to enable the sign-in feature for everyone. This option can restrict the access to this endpoint. It takes a list of scopes (comma-separated). If the value is not null, then a JWT token has to be used to call this API. Typically, the value is set to admin.	null
APP_NAME	This will for example appear in the head title of a sign-in popup for Api Key services.	Appmixer
AUTH_HUB_AUTOMATIC	If the auth-hub system plugin is on and this value is true, all OAuth requests for unconfigured services will go through the Authentication Hub. It means that if you install Slack, for example, and do not configure the clientId and clientSecret the engine will use the Appmixer Authentication Hub for Slack authorization.	true
DEFAULT_USER_VENDOR	Vendor assigned to newly created users.	No value
AUTH_POPUP_DISPLAY_ERR		true
AUTH_POPUP_TIMEOUT_ERR	How many seconds before automatically closing the Connecting Account Failed popup window.	5
BROKER_MESSAGE_ACK_TIMEOUT	Timeout for message processing.	1500000
COMPONENT_FACTORY_TIMEOUT	An attempt to create a component will fail after this timeout.	300000
COMPONENT_RECEIVE_TIMEOUT	A message will be retried if the receive() function does not return within this timeout.	1380000
LIMIT_FLOW_UPDATE_BYTES	The max size in bytes of a flow descriptor to be able to be saved.	2097152
LIMIT_CC_ARCHIVE_MAX_BYTES	Maximum size in bytes for custom components.	10485760
LIMIT_WEBHOOK_BYTES	Maximum payload size in bytes for webhook components.	1048576
WEBHOOK_REQUEST_TIMEOUT	Timeout in milliseconds for webhook component requests.	10000
LIMIT_COMPONENT_STATIC_CALL_MAX_BYTES	Maximum size in bytes of the payload for component static calls.	104857600
PUBLIC_FILES_PREFIX	Public files (needed usually for domain verification) can be served from different paths. Path prefixes have to be separated by :	/:/.well-known
RETRY_BACKOFF	In case of an error, a message for a Component is rescheduled for another attempt. A back-off strategy is used. This value defines the number of attempts and the number of minutes between them.	1,5,60,300,720
DISPATCHER_PREFETCH_COUNT	The maximum number of Rabbit messages being dispatched at the same time.	500
INPUT_QUEUE_PREFETCH_COUNT	The maximum number of outgoing Rabbit messages waiting for aknowledgement at the time in the Input Queue. Subsequent incoming messages will not be sent until pending messages are aknowledged.	300
WEBHOOK_PREFETCH_COUNT	This is for webhooks from Appmixer to registered URLs. This is the amount of webhook messages that will be processing at a time.	50
WEBHOOK_RETRY_COUNT	Number of times that Appmixer will retry sending a webhook. Applies for all webhooks.	20
WEBHOOK_RETRY_INTERVAL	Initial interval in milliseconds for retries. Subsequent retries will take longer (multiplied by an internal factor).	30000
WEBHOOK_RETRY_MAX	Maximum interval in milliseconds between retries.	1800000
WEBHOOK_USER_CREATED	URL that will be called when new user is created (sign-up).	No value
WEBHOOK_FLOW_COMPONENT_ERROR	URL that will be called when a running flow encounters an error.	No value
WEBHOOK_FLOW_COMPONENT_ERROR_INCLUDE_QUOTA	Include quota errors among the errors sent to the registered webhook URL.	false
WEBHOOK_FLOW_COMPONENT_ERROR_INCLUDE_RETRY	Include retry attempts among the errors sent to the registered webhook URL. If false, the error will be sent, when all 30 attempts to process a message fail. If true, every failed attempt will be sent.	false
WEBHOOK_FLOW_STOPPED	URL that will be called when a flow is stopped due to an incompatible module upgrade.	No value
STRICT_COOKIES	If set to true, the engine will reject any incoming HTTP requests that have cookies that don't comply with the HTTP cookies RFC specification.	false
GARBAGE_COLLECTOR_CONTINUITY_SCOPES_TTL	The maximum time in days before continuity scopes are garbage collected. A continuity scope is a state of a flow including data from the flow runtime needed to continue the flow from a certain component onwards. For example, the Plivo.SendSMSAndWaitForReply sends an SMS and waits for an event (webhook) from Plivo that contains an SMS with a reply. The continuity scope contains all the data needed to continue the flow at a later time (when the webhook from Plivo is received which can take hours to days.	100
GC_FILES_ENABLED	If the Garbage collector for files is enabled.	true
GC_FILES_RULES	Rules for the Gargabge collector.	See below.

GC_FILES_RULES

 [
    {
        "scope": "user",

        /**
         * The GC will never delete files created in the past TTL (in hours). By default,
         * set to 720 hours. The reason is to prevent the GC from removing files that could be needed by the
         * flows.
         */
        "ttl": 720,   // 30 days

        /**
         * The user will be blocked from saving any files if the limit is reached.
         */
        "hardLimit": 2000000000   // 2 GB
    }
]

You can have different rules for different user scopes:
[
    { "scope": "user:, "ttl": 720, "hardLimit": 2000000000 },
    { "scope": "admin", "ttl":1440, "hardLimit": 90000000000 }
]