Merge pull request #62 from maticnetwork/vr_new-stake-update

New: Staking Update Events

root/schema.graphql

@@ -158,6 +158,16 @@ type Validator @entity {
   isInAuction: Boolean!
 }
 
+type StakeUpdate @entity {
+  id: ID!
+  validatorId: BigInt!
+  totalStaked: BigInt!
+  block: BigInt!
+  nonce: BigInt!
+  transactionHash: Bytes!
+  logIndex: BigInt!
+}
+
 # Keeps track of current delegator counter i.e. how many
 # delegators are present as of now
 type GlobalDelegatorCounter @entity {

root/src/mappings/staking-info.ts

@@ -6,6 +6,7 @@ import {
   StakingParams,
   GlobalDelegatorCounter,
   DelegatorUnbond,
+  StakeUpdate as StakeUpdateEntity,
 } from '../../generated/schema'
 import {
   ClaimFee,
@@ -163,7 +164,17 @@ export function handleStakeUpdate(event: StakeUpdate): void {
   // from totalStaked
   validator.selfStake = validator.totalStaked.minus(validator.delegatedStake)
 
+  //Stake update entity 
+  let stakeUpdate = new StakeUpdateEntity(event.transaction.hash.toHex() + '-' + event.logIndex.toString())
+  stakeUpdate.totalStaked = event.params.newAmount
+  stakeUpdate.nonce = event.params.nonce
+  stakeUpdate.block = event.block.number
+  stakeUpdate.transactionHash = event.transaction.hash
+  stakeUpdate.validatorId = event.params.validatorId
+  stakeUpdate.logIndex = event.logIndex
+
   validator.save()
+  stakeUpdate.save()
 }
 
 export function handleClaimRewards(event: ClaimRewards): void {