UNPKG

@kamino-finance/klend-sdk

Version:

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

101 lines (83 loc) 2.77 kB
/* eslint-disable @typescript-eslint/no-unused-vars */ import { address, Address, fetchEncodedAccount, fetchEncodedAccounts, GetAccountInfoApi, GetMultipleAccountsApi, Rpc, } 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 RealmSpawnRecordAccountDataFields { ebuf: Array<number> } export interface RealmSpawnRecordAccountDataJSON { ebuf: Array<number> } export class RealmSpawnRecordAccountData { readonly ebuf: Array<number> static readonly discriminator = Buffer.from([229, 116, 99, 2, 145, 96, 5, 95]) static readonly layout = borsh.struct<RealmSpawnRecordAccountData>([ borsh.array(borsh.u8(), 256, "ebuf"), ]) constructor(fields: RealmSpawnRecordAccountDataFields) { this.ebuf = fields.ebuf } static async fetch( rpc: Rpc<GetAccountInfoApi>, address: Address, programId: Address = PROGRAM_ID ): Promise<RealmSpawnRecordAccountData | null> { const info = await fetchEncodedAccount(rpc, address) if (!info.exists) { return null } if (info.programAddress !== programId) { throw new Error("account doesn't belong to this program") } return this.decode(Buffer.from(info.data)) } static async fetchMultiple( rpc: Rpc<GetMultipleAccountsApi>, addresses: Address[], programId: Address = PROGRAM_ID ): Promise<Array<RealmSpawnRecordAccountData | null>> { const infos = await fetchEncodedAccounts(rpc, addresses) return infos.map((info) => { if (!info.exists) { return null } if (info.programAddress !== programId) { throw new Error("account doesn't belong to this program") } return this.decode(Buffer.from(info.data)) }) } static decode(data: Buffer): RealmSpawnRecordAccountData { if (!data.slice(0, 8).equals(RealmSpawnRecordAccountData.discriminator)) { throw new Error("invalid account discriminator") } const dec = RealmSpawnRecordAccountData.layout.decode(data.slice(8)) return new RealmSpawnRecordAccountData({ ebuf: dec.ebuf, }) } toJSON(): RealmSpawnRecordAccountDataJSON { return { ebuf: this.ebuf, } } static fromJSON( obj: RealmSpawnRecordAccountDataJSON ): RealmSpawnRecordAccountData { return new RealmSpawnRecordAccountData({ ebuf: obj.ebuf, }) } }