Scry Reference • Reference • developers.urbit.org

Here are the scry endpoints of Ames. All of them take a %x care and require the desk in the path prefix be empty, so the general format is .^([type] %ax /=//=/[some-path]).

/protocol/version

A scry with a %x care and a path of /protocol/version will return the current Ames protocol version as a @.

Example

> .^(@ %ax /=//=/protocol/version)
0

/peers

A scry with a %x care and a path of /peers will return all ships that Ames is aware of. The type returned is a (map ship ?(%alien %known)), where %known means we have PKI data for them and %alien means we don't.

Example

> .^((map ship ?(%alien %known)) %ax /=//=/peers)
{[p=~wet q=%known] [p=~nes q=%known]}

/peers/[ship]

A scry with a %x care and a path of /peers/[ship] where [ship] is a ship name like ~dopzod will return everything Ames knows about that ship, or crash if the ship is unknown to Ames. The type returned is a $ship-state.

Example

> .^(ship-state:ames %ax /=//=/peers/~nes)
[ %known
  [ symmetric-key=0wEF.5-Mp4.ehBxk.a-ktl.CAUHq.~XNVq.AfPFk.TwBbj.rc7MS
    life=1
    public-key=0w9R.IG6Km.CQfuL.lP9Da.l~kh1.lOHzV.xactk.1ybiB.hekW~.VC2d0.DDRsU.h6GHl.PKmRX.p3u2-.vO4Hg.QTOlp.A4AI0.uGPVy
    sponsor=~nes
  ]
  route=[~ [direct=%.y lane=[%.y p=~nes]]]
  qos=[%dead last-contact=~2021.8.9..16.11.36..fdbc]
    ossuary
  [ next-bone=4
    by-duct={[p=~[/gall/sys/way/~nes/hood /gall/use/hood/0w2.4d7EV/out/~nes/hood/helm/hi/~nes /dill //term/1] q=0]}
    by-bone={[p=0 q=~[/gall/sys/way/~nes/hood /gall/use/hood/0w2.4d7EV/out/~nes/hood/helm/hi/~nes /dill //term/1]]}
  ]
    snd
  { [ p=0
        q
      [ current=2
        next=3
        unsent-messages={}
        unsent-fragments=~
        queued-message-acks={}
          packet-pump-state
        [ next-wake=[~ ~2021.8.17..02.21.14..3d23]
          live={[[message-num=2 fragment-num=0] [last-sent=~2021.8.17..02.19.14..3d23 retries=2.255 skips=0] num-fragments=1 fragment=0w2.QJ1qS.JzaQn.w7rMp.IzuTJ.7M7aP.-1s~1]}
          metrics=[rto=~m2 rtt=~s1 rttvar=~s1 ssthresh=1 cwnd=1 num-live=1 counter=1]
        ]
      ]
    ]
  }
  rcv={}
  nax={}
  heeds={~[/gall/sys/lag /dill //term/1]}
]

/peers/[ship]/forward-lane

A scry with a %x care and a path of /peers/[ship]/forward-lane where [ship] is a ship name like ~dopzod will return outbound routes to the given ship, or ~ if there are none. The type returned is a (list lane:ames), see $lane for type details.

Examples

> .^((list lane:ames) %ax /=//=/peers/~nes/forward-lane)
~[[%.y p=~nes]]

> .^((list lane:ames) %ax /=//=/peers/~nec/forward-lane)
~

/bones/[ship]

A scry with a %x care and a path of /bones/[ship] where [ship] is a ship name like ~dopzod will return inbound and outbound $bones, which index message flows. If the ship in question is unknown to Ames, the scry will fail. The type returned is [snd=(set bone) rcv=(set bone)].

Example

> .^([snd=(set bone) rcv=(set bone)] %ax /=//=/bones/~nes)
[snd={0} rcv={}]

/snd-bones/[ship]/[bone]

A scry with a %x care and a path of /snd-bones/[ship]/[bone], where [ship] is a ship name like ~dopzod and [bone] is an outbound $bone, will return message flow details for that bone. If the ship in question is unknown to Ames or the bone does not exist, the scry will fail. The type returned is a $message-pump-state wrapped in a vase.

Example

> !<  message-pump-state:ames  .^(vase %ax /=//=/snd-bones/~nes/0)
[ current=2
  next=3
  unsent-messages={}
  unsent-fragments=~
  queued-message-acks={}
    packet-pump-state
  [ next-wake=[~ ~2021.8.17..02.27.14..aaff]
      live
    { [ [message-num=2 fragment-num=0]
        [last-sent=~2021.8.17..02.25.14..aaff retries=2.258 skips=0]
        num-fragments=1
        fragment=0w2.QJ1qS.JzaQn.w7rMp.IzuTJ.7M7aP.-1s~1
      ]
    }
    metrics=[rto=~m2 rtt=~s1 rttvar=~s1 ssthresh=1 cwnd=1 num-live=1 counter=1]
  ]
]