Menu
Caution
Grafana Alloy is the new name for our distribution of the OTel collector. Grafana Agent has been deprecated and is in Long-Term Support (LTS) through October 31, 2025. Grafana Agent will reach an End-of-Life (EOL) on November 1, 2025. Read more about why we recommend migrating to Grafana Alloy.
Open source
json_path
The json_path
function lookup values using jsonpath syntax.
The function expects two strings. The first string is the JSON string used look up values. The second string is the jsonpath expression.
json_path
always returns a list of values. If the jsonpath expression does not match any values, an empty list is returned.
A common use case of json_path
is to decode and filter the output of a local.file
or remote.http
component to a River value.
Remember to escape double quotes when passing JSON string literals to
json_path
.For example, the JSON value
{"key": "value"}
is properly represented by the string"{\"key\": \"value\"}"
.
Examples
> json_path("{\"key\": \"value\"}", ".key")
["value"]
> json_path("[{\"name\": \"Department\",\"value\": \"IT\"},{\"name\":\"TestStatus\",\"value\":\"Pending\"}]", "[?(@.name == \"Department\")].value")
["IT"]
> json_path("{\"key\": \"value\"}", ".nonexists")
[]
> json_path("{\"key\": \"value\"}", ".key")[0]
value
Was this page helpful?
Related documentation
Related resources from Grafana Labs
Additional helpful documentation, links, and articles:
Video
Intro to Kubernetes monitoring in Grafana Cloud
In this webinar you’ll learn how Grafana offers developers and SREs a simple and quick-to-value solution for monitoring their Kubernetes infrastructure.
Video
Optimizing Kubernetes Operations with Grafana Cloud
Join us for an insightful Grafana Cloud webinar dedicated to advanced Kubernetes monitoring techniques.
Video
Incident management with Grafana IRM & SLOS in Grafana Cloud
This webinar shows you how to prioritize critical resources through service level objective(SLO)-driven incident response and management (IRM).