@kamino-finance/kliquidity-sdk
Version:
Typescript SDK for interacting with the Kamino Liquidity (kliquidity) protocol
67 lines (62 loc) • 2.11 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 InitializePositionArgs {
lowerBinId: number
width: number
}
export interface InitializePositionAccounts {
payer: TransactionSigner
position: TransactionSigner
lbPair: Address
owner: TransactionSigner
systemProgram: Address
rent: Address
eventAuthority: Address
program: Address
}
export const layout = borsh.struct([
borsh.i32("lowerBinId"),
borsh.i32("width"),
])
export function initializePosition(
args: InitializePositionArgs,
accounts: InitializePositionAccounts,
programAddress: Address = PROGRAM_ID
) {
const keys: Array<IAccountMeta | IAccountSignerMeta> = [
{ address: accounts.payer.address, role: 3, signer: accounts.payer },
{ address: accounts.position.address, role: 3, signer: accounts.position },
{ address: accounts.lbPair, role: 0 },
{ address: accounts.owner.address, role: 2, signer: accounts.owner },
{ address: accounts.systemProgram, role: 0 },
{ address: accounts.rent, role: 0 },
{ address: accounts.eventAuthority, role: 0 },
{ address: accounts.program, role: 0 },
]
const identifier = Buffer.from([219, 192, 234, 71, 190, 191, 102, 80])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
lowerBinId: args.lowerBinId,
width: args.width,
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix: IInstruction = { accounts: keys, programAddress, data }
return ix
}