This version is still in development and is not considered stable yet. For the latest stable version, please use Spring Boot 3.3.5!

Health (health)

The health endpoint provides detailed information about the health of the application.

Retrieving the Health of the Application

To retrieve the health of the application, make a GET request to /actuator/health, as shown in the following curl-based example:

$ curl 'http://localhost:8080/actuator/health' -i -X GET \
    -H 'Accept: application/json'

The resulting response is similar to the following:

HTTP/1.1 200 OK
Content-Type: application/json
Content-Length: 821

{
  "status" : "UP",
  "components" : {
    "broker" : {
      "status" : "UP",
      "components" : {
        "us1" : {
          "status" : "UP",
          "details" : {
            "version" : "1.0.2"
          }
        },
        "us2" : {
          "status" : "UP",
          "details" : {
            "version" : "1.0.4"
          }
        }
      }
    },
    "db" : {
      "status" : "UP",
      "details" : {
        "database" : "H2",
        "validationQuery" : "isValid()"
      }
    },
    "diskSpace" : {
      "status" : "UP",
      "details" : {
        "total" : 77851254784,
        "free" : 46946881536,
        "threshold" : 10485760,
        "path" : "/home/runner/work/spring-boot/spring-boot/spring-boot-project/spring-boot-actuator-autoconfigure/.",
        "exists" : true
      }
    }
  }
}

Response Structure

The response contains details of the health of the application. The following table describes the structure of the response:

Path Type Description

status

String

Overall status of the application.

components

Object

The components that make up the health.

components.*.status

String

Status of a specific part of the application.

components.*.components

Object

The nested components that make up the health.

components.*.details

Object

Details of the health of a specific part of the application. Presence is controlled by management.endpoint.health.show-details.
The response fields above are for the V3 API. If you need to return V2 JSON you should use an accept header or application/vnd.spring-boot.actuator.v2+json

Retrieving the Health of a Component

To retrieve the health of a particular component of the application’s health, make a GET request to /actuator/health/{component}, as shown in the following curl-based example:

$ curl 'http://localhost:8080/actuator/health/db' -i -X GET \
    -H 'Accept: application/json'

The resulting response is similar to the following:

HTTP/1.1 200 OK
Content-Type: application/json
Content-Length: 101

{
  "status" : "UP",
  "details" : {
    "database" : "H2",
    "validationQuery" : "isValid()"
  }
}

Response Structure

The response contains details of the health of a particular component of the application’s health. The following table describes the structure of the response:

Path Type Description

status

String

Status of a specific part of the application

details

Object

Details of the health of a specific part of the application.

Retrieving the Health of a Nested Component

If a particular component contains other nested components (as the broker indicator in the example above), the health of such a nested component can be retrieved by issuing a GET request to /actuator/health/{component}/{subcomponent}, as shown in the following curl-based example:

$ curl 'http://localhost:8080/actuator/health/broker/us1' -i -X GET \
    -H 'Accept: application/json'

The resulting response is similar to the following:

HTTP/1.1 200 OK
Content-Type: application/json
Content-Length: 66

{
  "status" : "UP",
  "details" : {
    "version" : "1.0.2"
  }
}

Components of an application’s health may be nested arbitrarily deep depending on the application’s health indicators and how they have been grouped. The health endpoint supports any number of /{component} identifiers in the URL to allow the health of a component at any depth to be retrieved.

Response Structure

The response contains details of the health of an instance of a particular component of the application. The following table describes the structure of the response:

Path Type Description

status

String

Status of a specific part of the application

details

Object

Details of the health of a specific part of the application.