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🌱 Stake

Stake​

To Stake your token on Saros Staking Pool we need some functions from the @saros-finance/sdk:

Stake.tsx
TypeScript
import sarosSdk, { genConnectionSolana } from "@saros - finance / sdk";
import { PublicKey, clusterApiUrl, Connection } from "@solana / web3.js";

BigNumber Support​

Also we will be needing BN Module which is installed by the command :

Terminal
$ npm install bn.js

After Successfully adding BN Module, then we can now use it on our Code like :

Stake.tsx
TypeScript
import BN from "bn.js";

Connection​

Then we need a Connection to the Solana Cluster(network). we can use the saros-finanace genConnectionSolana helper function or use the solana Connection Class

Stake.tsx
TypeScript
//using @saros-finance genConnectionSolana function
const connection = genConnectionSolana();

//using @solana/web3.js Connection
const connection = new Connection(clusterApiUrl.mainnet, "confirmed");

SarosFarmService​

We need to utilize the SarosFarmService that we got from the sarosSdk member we just imported

Stake.tsx
TypeScript
//using @saros-finance Saros Farm Services
const { SarosFarmService } = sarosSdk;

Stake Configs​

So now that we are almost ready lets configure some of the configurations we are going to use.

Stake.tsx
TypeScript
//Farm Program ID
const SAROS_FARM_ADDRESS = new PublicKey(
  "SFarmWM5wLFNEw1q5ofqL7CrwBMwdcqQgK6oQuoBGZJ"
);

const userAccount = "5UrM9csUEDBeBqMZTuuZyHRNhbRW4vQ1MgKJDrKU1U2v"; // owner address

const payerAccount = { publicKey: new PublicKey(userAccount) };

const farmList = [
  {
    lpAddress: "HVUeNVH93PAFwJ67ENJwPWFU9cWcM57HEAmkFLFTcZkj",
    poolAddress: "FW9hgAiUsFYpqjHaGCGw4nAvejz4tAp9qU7kFpYr1fQZ",
    poolLpAddress: "2wUvdZA8ZsY714Y5wUL9fkFmupJGGwzui2N74zqJWgty",
    rewards: [
      {
        address: "C98A4nkJXhpVZNAZdHUA95RpTF3T4whtQubL3YobiUX9",
        poolRewardAddress: "AC3FyChJwuU7EY9h4BqzjcN8CtGD7YRrAbeRdjcqe1AW",
        rewardPerBlock: 6600000,
        rewardTokenAccount: "F6aHSR3ChwCXD67wrX2ZBHMkmmU9Gfm9QQmiTBrKvsmJ",
        id: "coin98",
      },
    ],
    token0: "C98A4nkJXhpVZNAZdHUA95RpTF3T4whtQubL3YobiUX9",
    token1: "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    token0Id: "coin98",
    token1Id: "usd - coin",
  },
];

Usage​

Stake.tsx
TypeScript
const handleStakePool = async () => {
  try {
    const txnHash = await SarosFarmService.stakePool(
      connection,
      payerAccount,
      new PublicKey(farmList[0].poolAddress),
      new BN(1000),
      SAROS_FARM_ADDRESS,
      farmList[0].rewards,
      new PublicKey(farmList[0].lpAddress)
    );
    return txnHash;
  } catch (error) {
    if (error instanceOf Error) console.error(error.message)
  }
};