Render Variables API
Contents
Render Variables provide versatility when constructing metric queries. Instead of hard-coding full metric names, use variables as placeholders to dynamically build your queries. This is similar, but not the same as the primary dashboard’s built-in template variables.
NOTE: we advise against using render variables in alert queries.
Create a variable
POST
/v1/variables/<var-name>/
Replace <var-name> with the name you want to give the variable. Place your variable values in a JSON file and include it in the POST request. A variable name is required, however the values can be empty.
Example variable values:
{
"values": [
"foobar",
"foo",
"bar",
"baz"
]
}
Curl example:
curl -X POST "https://[email protected]/v1/variables/<var-name>/" -d @values.json
Make sure to include the forward slash character at the end of the request.
Update a variable
PUT
/v1/variables/<var-name>/
Overwrites the values for an existing variable
Curl example:
curl -X PUT "https://<apikey>@api.hostedgraphite.com/v1/variables/<var-name>/" -d @values.json
Search Variables
GET
/v1/variables/?query=
A “contains” query that will return a JSON object with the name and path of variables that contain the search term. To list all variables, leave the query empty.
Path Parameters
query
String
Curl example:
curl -X GET "https://<apikey>@api.hostedgraphite.com/v1/variables/?query="
If you have no variables or there are no variables that match your query you will be returned with an empty object:
{
"variables": []
}
Get variable values
GET
/v1/variables/<var-name>/
Returns a JSON object with the values assigned to <var-name>
Curl example:
curl -X GET "https://<apikey>@api.hostedgraphite.com/v1/variables/<var-name>/"
Delete a variable
DELETE
/v1/variables/<var-name>/
Curl example:
curl -X DELETE "https://<apikey>@api.hostedgraphite.com/v1/variables/<var-name>/"
This cannot be done with the simple query builder, you must toggle the edit mode to the free-text mode.
Refer to a render variable by including the variable name enclosed in angled brackets in your metric query: <variable-name>
Using dashboard templates within render variables
You can place template variables within render variables by surrounding them with curly brackets:
$foo.<{$foo}_metric>.bar
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