Value Subscription

The value subscription widget is a simple widget to display value and change it.

Capabilities

Capability	Support	Comment
Display current state of value.ospp
Change value of an initialized value.ospp		The value must be subscribed with a `read/write` state
Change value of an uninitialized value.ospp		Currently this is not supported
Inspect a value JSON content in a modal		Available when the field holds a valid JSON string

List of configuration files

Filename	Short description	Format	Link to documentation
dashboard.view#ValueSubscriptionWidget	Defines the ValueSubscriptionWidget widget global settings	json	Link

List of examples

Short description	Link to documentation
Create a random value generated by a remote connector	Simple remote connectors
Insert audit logs from scripts	Insert audit logs from scripts

Display values

The values are declared in the Dashboard view in the valueSubscription field. To be readable, the right must be set to READ

Inspect JSON content

Expanding a subscribed value reveals its details (id, name, description, content, error, type and timestamp). When a field holds a valid JSON string — typically the value content — a Show JSON icon appears next to its copy icon. Clicking it opens the parsed value in a modal, using the same collapsible, theme-aware viewer as the Json widget.

Null values

When a value.ospp holds a null value, the system returns undefined. This behavior is consistent across all supported data types:

TEXT
DECIMAL
INTEGER
BOOLEAN

In other words, a null value is not type-specific and is always mapped to undefined.

Boolean display behavior

For BOOLEAN values, the user interface displays false next to the toggle in two cases:

when the actual value is false
when the value is undefined (originating from a null value)

This visual representation does not distinguish between false and undefined. The effective state is determined solely by the underlying value, which is the authoritative source.