Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.
Dashboard URL variables
Grafana can apply variable values passed as query parameters in dashboard URLs. For more information, refer to Manage dashboard links and [Templates and variables][].
Passing variables as query parameters
Grafana interprets query string parameters prefixed with var-
as variables in the given dashboard.
For example, in this URL:
https://${your-domain}/path/to/your/dashboard?var-example=value
The query parameter var-example=value
represents the dashboard variable example
with a value of value
.
Passing multiple values for a variable
To pass multiple values, repeat the variable parameter once for each value:
https://${your-domain}/path/to/your/dashboard?var-example=value1&var-example=value2
Grafana interprets var-example=value1&var-example=value2
as the dashboard variable example
with two values: value1
and value2
.
Example
This example in Grafana Play passes the variable server
with multiple values, and the variables app
and interval
with a single value each.
Adding variables to dashboard links
Grafana can add variables to dashboard links when you generate them from a dashboard’s settings. For more information and steps to add variables, refer to Manage dashboard links.
Passing ad hoc filters
Ad hoc filters apply key/value filters to all metric queries that use a specified data source. For more information, refer to Add ad hoc filters.
To pass an ad hoc filter as a query parameter, use the variable syntax to pass the ad hoc filter variable, and also provide the key, the operator as the value, and the value as a pipe-separated list.
For example, in this URL:
https://${your-domain}/path/to/your/dashboard?var-adhoc=example_key|=|example_value
The query parameter var-adhoc=key|=|value
applies the ad hoc filter configured as the adhoc
dashboard variable using the example_key
key, the =
operator, and the example_value
value.
Note
When sharing URLs with ad hoc filters, remember to encode the URL. In the above example, replace the pipes (|
) with%7C
and the equality operator (=
) with%3D
.
Example
This example in Grafana Play passes the ad hoc filter variable adhoc
with the filter value datacenter = America
.
Controlling time range using the URL
To set a dashboard’s time range, use the from
, to
, time
, and time.window
query parameters. Because these are not variables, they do not require the var-
prefix. For more information, see the Linking overview.