Snapshots not available anymore

[fkbenjamin]

With the update of network parameters, V1 of go-tezos is not working anymore. However, as far as I could see, there is no documentation for V2 (at least I can't find one) and I can't find a way to query Snapshots in V2:

type *gotezos.GoTezos has no field or method SnapShot

Is there a way to get the assiociatedBlock of a cycle in V2? I used to do it like this and am looking for a working alternative in V2.

snapshot, err := gt.SnapShot.Get(cycle)
    if err != nil {
        fmt.Println(err)
    }
  percentageBlock := snapshot.AssociatedBlock

If this is not implemented in V2 right now, could we update V1 to support the new network parameters for now? Or maybe there is a better way to query this: I'm looking for a way to determine the percentage of total stake that is coming from the baker itself. Currently, I query the Snapshot, get the block_height of that cycle and query the balances.

[DefinitelyNotAGoat]

Hi @fkbenjamin. go-tezos is still a currently evolving project, but the function you're looking for is gt.Cycle, which will give you the blockhash needed. Because it's evolving there may be breaking changes before the official v2.0.0 tag is used. Currently I am tagging things as alpha. I would recommend using V2 over V1, because even it's alpha state it is much safer and tested.

/*
Cycle represents the cycle RPC.

RPC:
    ../blocks/<block_id>/context/raw/json/cycle/<cycle_number> (GET)
*/
type Cycle struct {
    RandomSeed   string `json:"random_seed"`
    RollSnapshot int    `json:"roll_snapshot"`
    BlockHash    string `json:"-"`
}

Here's the documentation you need: https://godoc.org/github.com/goat-systems/go-tezos

[DefinitelyNotAGoat]

@fkbenjamin also I think we may be working on similar things, here is my payout script: https://github.com/goat-systems/tzpay

Specifically the delegation calculations happen here: https://github.com/goat-systems/tzpay/blob/master/internal/payout/payouts.go

[fkbenjamin]

Hey @DefinitelyNotAGoat ,

I already saw your tzpay script. This issue was not related to our payout software (working great for over a year now).

I rather wanted to use this to track earnings of bakers on a per-block basis (for auditing & reporting). I just realized that I probably can just copy that part over from our payout tool. I'll have a look at it again once I find the time and maybe submit a PR if I'm missing some functionality.

[DefinitelyNotAGoat]

@fkbenjamin let me know if you need any help! Be happy to take a look at it with you!