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@kamino-finance/klend-sdk

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Typescript SDK for interacting with the Kamino Lending (klend) protocol

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import { TransactionInstruction, PublicKey, AccountMeta } from "@solana/web3.js" // eslint-disable-line @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 * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars import { PROGRAM_ID } from "../programId" export interface UpdateReserveConfigArgs { mode: types.UpdateConfigModeKind value: Uint8Array skipConfigIntegrityValidation: boolean } export interface UpdateReserveConfigAccounts { signer: PublicKey globalConfig: PublicKey lendingMarket: PublicKey reserve: PublicKey } export const layout = borsh.struct([ types.UpdateConfigMode.layout("mode"), borsh.vecU8("value"), borsh.bool("skipConfigIntegrityValidation"), ]) export function updateReserveConfig( args: UpdateReserveConfigArgs, accounts: UpdateReserveConfigAccounts, programId: PublicKey = PROGRAM_ID ) { const keys: Array<AccountMeta> = [ { pubkey: accounts.signer, isSigner: true, isWritable: false }, { pubkey: accounts.globalConfig, isSigner: false, isWritable: false }, { pubkey: accounts.lendingMarket, isSigner: false, isWritable: false }, { pubkey: accounts.reserve, isSigner: false, isWritable: true }, ] const identifier = Buffer.from([61, 148, 100, 70, 143, 107, 17, 13]) const buffer = Buffer.alloc(1000) const len = layout.encode( { mode: args.mode.toEncodable(), value: Buffer.from( args.value.buffer, args.value.byteOffset, args.value.length ), skipConfigIntegrityValidation: args.skipConfigIntegrityValidation, }, buffer ) const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len) const ix = new TransactionInstruction({ keys, programId, data }) return ix }