/
slotsUpdatesSubscribe.go
91 lines (81 loc) · 2.81 KB
/
slotsUpdatesSubscribe.go
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// Copyright 2021 github.com/gagliardetto
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ws
import "github.com/jwrookie/jwsolana-go"
type SlotsUpdatesResult struct {
// The parent slot.
Parent uint64 `json:"parent"`
// The newly updated slot.
Slot uint64 `json:"slot"`
// The Unix timestamp of the update.
Timestamp *solana.UnixTimeMilliseconds `json:"timestamp"`
// The update type.
Type SlotsUpdatesType `json:"type"`
// Extra stats provided when a bank is frozen.
Stats *BankStats `json:"stats"`
}
type BankStats struct {
NumTransactionEntries uint64 `json:"numTransactionEntries"`
NumSuccessfulTransactions uint64 `json:"numSuccessfulTransactions"`
NumFailedTransactions uint64 `json:"numFailedTransactions"`
MaxTransactionsPerEntry uint64 `json:"maxTransactionsPerEntry"`
}
type SlotsUpdatesType string
const (
SlotsUpdatesFirstShredReceived SlotsUpdatesType = "firstShredReceived"
SlotsUpdatesCompleted SlotsUpdatesType = "completed"
SlotsUpdatesCreatedBank SlotsUpdatesType = "createdBank"
SlotsUpdatesFrozen SlotsUpdatesType = "frozen"
SlotsUpdatesDead SlotsUpdatesType = "dead"
SlotsUpdatesOptimisticConfirmation SlotsUpdatesType = "optimisticConfirmation"
SlotsUpdatesRoot SlotsUpdatesType = "root"
)
// SlotsUpdatesSubscribe (UNSTABLE) subscribes to receive a notification
// from the validator on a variety of updates on every slot.
//
// This subscription is unstable; the format of this subscription
// may change in the future and it may not always be supported.
func (cl *Client) SlotsUpdatesSubscribe() (*SlotsUpdatesSubscription, error) {
genSub, err := cl.subscribe(
nil,
nil,
"slotsUpdatesSubscribe",
"slotsUpdatesUnsubscribe",
func(msg []byte) (interface{}, error) {
var res SlotsUpdatesResult
err := decodeResponseFromMessage(msg, &res)
return &res, err
},
)
if err != nil {
return nil, err
}
return &SlotsUpdatesSubscription{
sub: genSub,
}, nil
}
type SlotsUpdatesSubscription struct {
sub *Subscription
}
func (sw *SlotsUpdatesSubscription) Recv() (*SlotsUpdatesResult, error) {
select {
case d := <-sw.sub.stream:
return d.(*SlotsUpdatesResult), nil
case err := <-sw.sub.err:
return nil, err
}
}
func (sw *SlotsUpdatesSubscription) Unsubscribe() {
sw.sub.Unsubscribe()
}