[metrics-bugs] #21389 [Metrics/Onionoo]: allow to search for effective family (strict and non strict maching)

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#21389: allow to search for effective family (strict and non strict maching)
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     Reporter:  cypherpunks      |      Owner:  metrics-team
         Type:  enhancement      |     Status:  new
     Priority:  Medium           |  Milestone:
    Component:  Metrics/Onionoo  |    Version:
     Severity:  Normal           |   Keywords:
Actual Points:                   |  Parent ID:
       Points:                   |   Reviewer:
      Sponsor:                   |
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 I maintain a list of top exit/guard/middle/cw effective families [1].
 Every entry is uniquely defined by the sorted list of effective family
 members (effective_family).

 I'd like to make every entry clickable (link to atlas), which would list
 all relays that make up that entry.
 To be able to use atlas for this, onionoo needs to support it first unless
 atlas emulates this by making multiple fingerprint= onionoo backend
 requests.



 onionoo currently offers the 'family' [2] parameter which will give you
 all effective family members for a given relay fingerprint (which is not
 what I'm looking for).





 [1] example for top eff. families by CW:
 https://raw.githubusercontent.com/ornetstats/stats/master/o/main_families_by_cw.txt


 [2]
 > family
 >Return only the relay whose fingerprint matches the parameter value and
 all relays that this relay has listed in its family by fingerprint and
 that in turn have listed this relay in their family by fingerprint. If
 relays have listed other relays in their family by nickname, those family
 relationships will not be considered, regardless of whether they have the
 Named flag or not. The provided relay fingerprint must consist of 40 hex
 characters where case does not matter, and it must not be hashed using
 SHA-1. Bridges are not contained in the result, regardless of whether they
 define a family.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21389>
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