@kamino-finance/kliquidity-sdk
Version:
Typescript SDK for interacting with the Kamino Liquidity (kliquidity) protocol
78 lines (73 loc) • 2.46 kB
text/typescript
/* eslint-disable @typescript-eslint/no-unused-vars */
import {
Address,
isSome,
IAccountMeta,
IAccountSignerMeta,
IInstruction,
Option,
TransactionSigner,
} from "@solana/kit"
/* eslint-enable @typescript-eslint/no-unused-vars */
import BN from "bn.js" // eslint-disable-line @typescript-eslint/no-unused-vars
import * as borsh from "@coral-xyz/borsh" // eslint-disable-line @typescript-eslint/no-unused-vars
import { borshAddress } from "../utils" // eslint-disable-line @typescript-eslint/no-unused-vars
import * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars
import { PROGRAM_ID } from "../programId"
export interface OpenPositionArgs {
bumps: types.OpenPositionBumpsFields
tickLowerIndex: number
tickUpperIndex: number
}
export interface OpenPositionAccounts {
funder: TransactionSigner
owner: Address
position: Address
positionMint: TransactionSigner
positionTokenAccount: Address
whirlpool: Address
tokenProgram: Address
systemProgram: Address
rent: Address
associatedTokenProgram: Address
}
export const layout = borsh.struct([
types.OpenPositionBumps.layout("bumps"),
borsh.i32("tickLowerIndex"),
borsh.i32("tickUpperIndex"),
])
export function openPosition(
args: OpenPositionArgs,
accounts: OpenPositionAccounts,
programAddress: Address = PROGRAM_ID
) {
const keys: Array<IAccountMeta | IAccountSignerMeta> = [
{ address: accounts.funder.address, role: 3, signer: accounts.funder },
{ address: accounts.owner, role: 0 },
{ address: accounts.position, role: 1 },
{
address: accounts.positionMint.address,
role: 3,
signer: accounts.positionMint,
},
{ address: accounts.positionTokenAccount, role: 1 },
{ address: accounts.whirlpool, role: 0 },
{ address: accounts.tokenProgram, role: 0 },
{ address: accounts.systemProgram, role: 0 },
{ address: accounts.rent, role: 0 },
{ address: accounts.associatedTokenProgram, role: 0 },
]
const identifier = Buffer.from([135, 128, 47, 77, 15, 152, 240, 49])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
bumps: types.OpenPositionBumps.toEncodable(args.bumps),
tickLowerIndex: args.tickLowerIndex,
tickUpperIndex: args.tickUpperIndex,
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix: IInstruction = { accounts: keys, programAddress, data }
return ix
}