## **Staking Transactions**

Transactions for delegating ADA and managing stakepools

Staking Transactions

## **Register Stake Address**

Same as [Transaction](https://meshjs.dev/apis/txbuilder/apis/transaction/staking#register-stake) , with `MeshTxBuilder` you have to register a stake address before delegate to stakepools. Here's the 2 APIs you need:

`txBuilder
  .registerStakeCertificate(rewardAddress)
  .delegateStakeCertificate(rewardAddress, poolIdHash)`

Since we need to provide the deserilized hash of pool id, we can use the following util to get it:

`const poolIdHash = deserializePoolId(
  "pool107k26e3wrqxwghju2py40ngngx2qcu48ppeg7lk0cm35jl2aenx",
);`

Register Stake Address

## **Delegate Stake**

Delegation with `MeshTxBuilder` is exactly the same as first delegate, but without registering stake key, so only one API is needed:

`txBuilder
  .delegateStakeCertificate(rewardAddress, poolIdHash)`


Delegate Stake

## **Withdraw Rewards**

Withdrawal with MeshTxBuilder comes with only one API, to specify the reward address and the amount to withdraw.

rewardAddress (string) - the reward address to withdraw from

lovelace (number) - the amount to withdraw in Lovelace

`txBuilder
  .withdrawal(rewardAddress, lovelace)`

Withdraw Rewards

## **Deregister Stake**

Deregister a stake address. The function accepts the following parameters:

rewardAddress (string) - the bech32 reward address to deregister

`txBuilder
  .deregisterStakeCertificate(rewardAddress: string)`



Deregister Stake

## **Script Withdrawal - Supporting Withdraw Zero**

Withdrawal from script is supported by MeshTxBuilder with this set of APIs:

`txBuilder
   .withdrawalPlutusScriptV2()
   .withdrawal(rewardAddress, withdrawalAmount)
   .withdrawalScript(stakeScriptCbor)
   .withdrawalRedeemerValue(redeemer)`

## **Withdraw Zero**

With that capability, it supports a Cardano technique - withdraw zero - which is a technique to trigger withdrawal script validation without actually withdrawing any value. This is a technique to help boost script ExUnits performance especially comes to validating multiple script inputs. In order to perform withdraw zero, 2 steps are involved:

 Register script stake key

`txBuilder
  .registerStakeCertificate(stakeScriptHash)`

Withdraw Zero

`txBuilder
  .withdrawalPlutusScriptV2()
  .withdrawal(rewardAddress, "0")
  .withdrawalScript(stakeScriptCbor)
  .withdrawalRedeemerValue(redeemer)`






Mesh Staking Transactions

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