health-check.core — opploans/health-check 0.1.2

failure clj

(failure error)

(failure base-response error)

Indicates a service is down. If only an error is given, then you will get just a map that looks like {:up? false :error error}. Otherwise, the given base-response will be merged into the above map

health-check clj

(health-check m)

(health-check af m)

Checks various services and aggregates their statuses up into a single overall status with descriptive data

m -- map of service name and function/value
     which represent the status of those
     services

af -- an aggregation function which takes all the sub-statuses
      of a structure and converts them into a single boolean value
      defaults to `every?`

If it is a function it should return the result of a call to either failure, success or response. Alternatively, the function could return any value which will be passed straight through without contributing to the overall status.

For example:

(health-check
  {:version "1.2.3"
   :up? (fn []
          (try (success (hit-db))
            (catch Exception e
              (failure "db down")))})

network-test clj

(network-test test-url error-fn)

response clj

(response base-response error & [status])

Indicates a service is either up or down. If an error is not nil, then you will get a map that looks like {:up? false :error error}. Otherwise, the map will look like {:up? true :status status}. It will then be merged into the base-response.

success clj

(success status)

(success base-response status)

Indicates a service is up. If only a status is given, then you will get just a map that looks like {:up? true :status status}. Otherwise, the given base-response will be merged into the above map