@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
61 lines (55 loc) • 1.94 kB
text/typescript
/* eslint-disable @typescript-eslint/no-unused-vars */
import {
Address,
isSome,
AccountMeta,
AccountSignerMeta,
Instruction,
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 const DISCRIMINATOR = Buffer.from([164, 35, 182, 19, 0, 116, 243, 127])
export interface MarkObligationForDeleveragingArgs {
autodeleverageTargetLtvPct: number
}
export interface MarkObligationForDeleveragingAccounts {
riskCouncil: TransactionSigner
obligation: Address
lendingMarket: Address
}
export const layout = borsh.struct<MarkObligationForDeleveragingArgs>([
borsh.u8("autodeleverageTargetLtvPct"),
])
export function markObligationForDeleveraging(
args: MarkObligationForDeleveragingArgs,
accounts: MarkObligationForDeleveragingAccounts,
remainingAccounts: Array<AccountMeta | AccountSignerMeta> = [],
programAddress: Address = PROGRAM_ID
) {
const keys: Array<AccountMeta | AccountSignerMeta> = [
{
address: accounts.riskCouncil.address,
role: 2,
signer: accounts.riskCouncil,
},
{ address: accounts.obligation, role: 1 },
{ address: accounts.lendingMarket, role: 0 },
...remainingAccounts,
]
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
autodeleverageTargetLtvPct: args.autodeleverageTargetLtvPct,
},
buffer
)
const data = Buffer.concat([DISCRIMINATOR, buffer]).slice(0, 8 + len)
const ix: Instruction = { accounts: keys, programAddress, data }
return ix
}