Creating a AnchorProvider instance

import { AnchorProvider } from '@project-serum/anchor'

const anchorProvider = AnchorProvider.env()

Creating a Router instance

const router = new Router(
  new Context(
    anchorProvider,
    'LyfeblocFactory111111111111111111111111111',
    'LyfeblocPooL111111111111111111111111111111',
    'LyfeblocRouter1111111111111111111111111111',
  ),
  new PublicKey(process.env.ROUTER_STATE_ADDRESS!),
)

Examples

• Put addresses into examples/.env file
  • Required: ANCHOR_PROVIDER_URL, ANCHOR_WALLET, LYFEBLOC_POOL_PROGRAM, LYFEBLOC_FACTORY_PROGRAM, LYFEBLOC_ROUTER_PROGRAM, FACTORY_STATE_ADDRESS, ROUTER_STATE_ADDRESS
  • E.g

ANCHOR_PROVIDER_URL=https://api.testnet.solana.com
ANCHOR_WALLET=/Users/username/.config/solana/id.json
LYFEBLOC_POOL_PROGRAM=675kPX9MHTjS2zt1qfr1NYHuzeLXfQM9H24wFSUt1Mp8
LYFEBLOC_FACTORY_PROGRAM=5quBtoiQqxF9Jv6KYKctB59NT3gtJD2Y65kdnB1Uev3h
LYFEBLOC_ROUTER_PROGRAM=routeUGWgWzqBWFcrCfv8tritsqukccJPu3q5GPP3xS
FACTORY_STATE_ADDRESS=HWoZFnLkKeGHrHwu9sySFts3oTVfDfQ9TnwXEqpSGU5D
ROUTER_STATE_ADDRESS=ASBnocaA9kg8QgyZZ23o7C9scVrxPaWZVLP1PEwhyqBw
COMMITMENT_LEVEL=confirmed
SOL_MINT=So11111111111111111111111111111111111111112
RAY_MINT=4k3Dyjzvzp8eMZWUXbBCjEvwSkkk59S5iCNLY3QrkX6R

• To ensure token accounts have been created, run spl-token accounts

• Run yarn run ts-node examples/{THE_EXAMPLE_TO_RUN_FILENAME}.ts

Add Liquidity New Pool

• Call Router's method addLiquidityNewPool to construct a ready-to-send transaction

const tx = await router.addLiquidityNewPool(
  anchorProvider.wallet.publicKey,
  RAY,
  SOL,
  20000,
  1,
  rayAmount,
  solAmount,
  new BN(0),
  new BN(0),
)

• Because AddLiquidityNewPool needs more than 400_000 compute units, we should request more compute unit
  • Use method createRequestUnitsInstruction to construct a request CU instruction
  • Put request CU instruction to the current transaction's instruction list

tx.instructions = [createRequestUnitsInstruction(Router.ADD_LIQUIDITY_NEW_POOL_COMPUTE_BUDGET, 0), ...tx.instructions]

Add Liquidity

• Call Router's method addLiquidity to construct a ready-to-send transaction

const tx = await router.addLiquidity(
  poolStateAddress,
  anchorProvider.wallet.publicKey,
  RAY,
  rayAmount,
  solAmount,
  new BN(0),
  new BN(0),
)

Remove Liquidity

• Call Router's method removeLiquidity to construct a ready-to-send transaction

const tx = await router.removeLiquidity(
  poolStateAddress,
  anchorProvider.wallet.publicKey,
  RAY,
  liquidityAmount,
  new BN(0),
  new BN(0),
)

Swap

• Call Router's method swap to construct a ready-to-send transaction

const tx = await router.swap(anchorProvider.wallet.publicKey, trade, {
  allowedSlippage: new Percent('1', '100'),
})

Send transaction

• Use method sendAndConfirmTransaction to sign transaction (using Wallet) then send to nodes and wait for confirmation

const txHash = await sendAndConfirmTransaction(anchorProvider, tx)

• A transaction hash will be returned if the transaction's successful