Solana: How to get staking rewards for each epoch

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Title: How to Get Staking Rewards for Each Epoch on Solana Using @solana/web3.js

Introduction:

Solana is a decentralized blockchain platform that enables fast, secure, and energy-efficient staking. In this article, we will show you how to collect the total staking rewards for each epoch using the @solana/web3.js library.

Step 1: Set up the connection

First, make sure you have the Solana Web3.js library installed in your project. You can install it using npm or yarn:

npm install @solana/web3.js

or

yarn add @solana/web3.js

Step 2: Create a Stake Pool

Create a new Solana stake pool by calling the createStakePool function from the web3 module:

import { web3 } from '@solana/web3.js';
const connection = web3.connect();
const stakePoolId = 'your_stake_pool_id'; // Replace with your staking pool ID
link.getStakingPools()
.then((pools) => {
const stakingPool = pools.find((pool) => pool.id === stakePoolId);
if (!stakingPool) {
console.error('Invalid staking pool ID');
return;
}
console.log(stakingPool);
})
.catch((error) => {
console.error(error);
});

Step 3: Aggregate the total staking rewards for each epoch

Use the getEpochRewards function to aggregate the total staking rewards for each epoch:

connection.getEpochRewards(stakingPool.id)
.then((rewards) => {
const totalRewards = rewards.reduce((acc, reward) => acc + reward.amount, 0);
console.log(Total staking rewards: ${totalRewards});
})
.catch((error) => {
console.error(error);
});

Step 4: Aggregate the rewards data

To aggregate the rewards data for each epoch, you can use a library like @solana/web3.js/api-rewards or create your own custom function. Here is an example of using the latter:

asynchronous function getEpochRewardsForEachEpoch() {
const stakingPoolId = 'your_stake_pool_id'; // Replace with your staking pool ID
link.getStakingPools()
.then((pools) => {
const stakingPool = pools.find((pool) => pool.id === stakePoolId);
if (!stakingPool) {
console.error('Invalid staking pool ID');
return;
}
const rewardsForEpochs = await Promise.all(stakingPool.epochs.map(async (epoch) => {
const rewardsData = await getRewardsFromEpoch(epoch);
return { epoch: epoch.toNumber(), totalRewards: rewardsData.total };
}));
console.log(rewardsForEpochs);
})
.catch((error) => {
console.error(error);
});
}
async function getRewardsFromEpoch(epoch) {
// Implement logic to retrieve rewards data from the epoch
// For example:
const rewards = await connection.getEpochRewards(epoch.toNumber());
return {total: rewards.total, data: rewards.data};
}

Conclusion:

This article demonstrates how to aggregate the total staking rewards for each Solana epoch using @solana/web3.js. By following these steps, you can aggregate the rewards data and get a comprehensive view of your staking pool performance.

Remember to replace your_stake_pool_id with your actual staking pool ID and implement the logic to retrieve rewards data from a given epoch.