As an API user, I want to know how long a request took to complete

[jordanpadams]

💪 Motivation

...so that I can use this for metrics purposes and/or for a better understanding of how to improve my access to the API from a client.

📖 Additional Details

⚖️ Acceptance Criteria

Given a running API and registry with data ingested
When I perform a query to the API
Then I expect the response to include a took field with the amount of time it takes for the query to be pushed to the registry, parsed by the API service, and then tagged with with the time right before the response is returned by the API service

⚙️ Engineering Details

Similar to ESDIS CMR response, something like:

{
  "hits" : 2,
  "took" : 11,
  "items" : [ {
...

seems like this is tightly coupled with NASA-PDS/pds-api#68 so figured I would add to this sprint as well

[al-niessner]

Waiting for NASA-PDS/pds-api#87

[al-niessner]

@jordanpadams @tloubrieu-jpl

"took" is in what units? If seconds, then float? It is currently number of milliseconds, since most requests are less than a second, and documented as such but could look strange if the did-not-read-the-manual assumption is seconds.

[jordanpadams]

resolved per NASA-PDS/pds-api#87 and NASA-PDS/pds-api@7fe91eb