Variable Types

In the LogScale Template Language, variables can be grouped into three categories: context, field or parameter variables.

Context Variables

Available within a specific context, such as in Dashboards & Widgets. The names of context variables are static, meaning, e.g. startTime and endTime will always be available as variables in a Dashboard context.

Variable Name Value
startTime 1675668087812

To use this variable in an expression, simply write the name of the variable e.g. startTime :

Template Expression Result
Time in millis: {{ startTime }} Time in millis: 1675668087812

Field Variables

Derived from the fields in the query result. Which field variables are available depend solely on the fields in a query result.

Example of a field variable name and its value:

Field Name Value
dayOfWeek Monday

To use this variable in an expression, write fields, followed by a dot or a bracket (see Template Syntax for a definition of these accessors) and then the name of the variable e.g. dayOfWeek:

Template Expression Result
Today is {{ fields.dayOfWeek }} Today is Monday

Parameter Variables

The parameter variable is the parameter value derived from Dashboard Parameters.

The parameter variable inserts the value of the specified parameter, it can insert the value of any parameter that is configured on the dashboard.

Example of a parameter variable name and its value:

Parameter Name Value
repository humio

To use this variable in an expression, write parameters, followed by a dot or a bracket (see Template Syntax for a definition of these accessors) and then the name of the parameter e.g. repository:

Template Expression Result
Selected repository: {{ parameters.repository }} Selected repository: humio