Jafner.net/archive/doradash/API.md
Joey Hafner 6086222503
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2024-07-16 12:17:55 -07:00

1.7 KiB

Design doc for API

Stuff we're gonna need:

  • GET for each of the four metrics, plus most recent "rating".
  • POST for data-generating events: deployment, outage/restoration.

Given that this service relies on having data pushed to it, we can only ever return metrics based on the most recent deployment or outage/restoration event.

So with that in mind, we have the following design for each of our endpoints:

Method Description Endpoint Request Payload Response Payload
GET Get deployment frequency /api/metrics/deployment_frequency - {"TIMESTAMP", "COUNT", "UNIT"}
GET Get lead time for changes /api/metrics/lead_time_for_changes - {"TIMESTAMP", "COMPUTED_TIME"}
GET Get time to restore service /api/metrics/time_to_restore_service - {"TIMESTAMP", "COMPUTED_TIME"}
GET Get change failure rate /api/metrics/change_failure_rate - {"TIMESTAMP", "RATE"}
GET Get current rating /api/metrics/vanity - {"TIMESTAMP", "RATING"}
POST Post new deployment event /api/events/deployment {"TIMESTAMP", "{INCLUDED_GIT_HASHES}", "OLDEST_COMMIT_TIMESTAMP", "DEPLOY_RETURN_STATUS"} OK
POST Post new service availability change event /api/events/service_availability {"TIMESTAMP", "SERVICE_ID", "EVENT_TYPE"}

Notes

  • As-is, this API leaves no room for versioning, publisher IDs, or meaningful correlation between deployments and service availability changes.
  • As-is, we have no identification, authentication, or authorization systems.
  • As-is, we have no way to view the dataset from which the values are calculated.