cosmos-sdk/cmd/basecli/counter/query.go
2017-06-15 13:11:09 +02:00

54 lines
1.3 KiB
Go

package counter
import (
"github.com/spf13/cobra"
wire "github.com/tendermint/go-wire"
"github.com/tendermint/light-client/commands"
proofcmd "github.com/tendermint/light-client/commands/proofs"
"github.com/tendermint/light-client/proofs"
"github.com/tendermint/basecoin/plugins/counter"
)
var CounterQueryCmd = &cobra.Command{
Use: "counter",
Short: "Query counter state, with proof",
RunE: doCounterQuery,
}
func doCounterQuery(cmd *cobra.Command, args []string) error {
height := proofcmd.GetHeight()
key := counter.New().StateKey()
node := commands.GetNode()
prover := proofs.NewAppProver(node)
proof, err := proofcmd.GetProof(node, prover, key, height)
if err != nil {
return err
}
var cp counter.CounterPluginState
err = wire.ReadBinaryBytes(proof.Data(), &cp)
if err != nil {
return err
}
return proofcmd.OutputProof(cp, proof.BlockHeight())
}
/*** doesn't seem to be needed anymore??? ***/
// type CounterPresenter struct{}
// func (_ CounterPresenter) MakeKey(str string) ([]byte, error) {
// key := counter.New().StateKey()
// return key, nil
// }
// func (_ CounterPresenter) ParseData(raw []byte) (interface{}, error) {
// var cp counter.CounterPluginState
// err := wire.ReadBinaryBytes(raw, &cp)
// return cp, err
// }