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@kamino-finance/kliquidity-sdk

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Typescript SDK for interacting with the Kamino Liquidity (kliquidity) protocol

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/* 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 OperationStateFields { bump: number operationOwners: Array<Address> whitelistMints: Array<Address> } export interface OperationStateJSON { bump: number operationOwners: Array<string> whitelistMints: Array<string> } export class OperationState { readonly bump: number readonly operationOwners: Array<Address> readonly whitelistMints: Array<Address> static readonly discriminator = Buffer.from([ 19, 236, 58, 237, 81, 222, 183, 252, ]) static readonly layout = borsh.struct<OperationState>([ borsh.u8("bump"), borsh.array(borshAddress(), 10, "operationOwners"), borsh.array(borshAddress(), 100, "whitelistMints"), ]) constructor(fields: OperationStateFields) { this.bump = fields.bump this.operationOwners = fields.operationOwners this.whitelistMints = fields.whitelistMints } static async fetch( rpc: Rpc<GetAccountInfoApi>, address: Address, programId: Address = PROGRAM_ID ): Promise<OperationState | 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<OperationState | 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): OperationState { if (!data.slice(0, 8).equals(OperationState.discriminator)) { throw new Error("invalid account discriminator") } const dec = OperationState.layout.decode(data.slice(8)) return new OperationState({ bump: dec.bump, operationOwners: dec.operationOwners, whitelistMints: dec.whitelistMints, }) } toJSON(): OperationStateJSON { return { bump: this.bump, operationOwners: this.operationOwners, whitelistMints: this.whitelistMints, } } static fromJSON(obj: OperationStateJSON): OperationState { return new OperationState({ bump: obj.bump, operationOwners: obj.operationOwners.map((item) => address(item)), whitelistMints: obj.whitelistMints.map((item) => address(item)), }) } }