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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 ProtocolPositionStateFields { bump: number poolId: Address tickLowerIndex: number tickUpperIndex: number liquidity: BN feeGrowthInside0LastX64: BN feeGrowthInside1LastX64: BN tokenFeesOwed0: BN tokenFeesOwed1: BN rewardGrowthInside: Array<BN> padding: Array<BN> } export interface ProtocolPositionStateJSON { bump: number poolId: string tickLowerIndex: number tickUpperIndex: number liquidity: string feeGrowthInside0LastX64: string feeGrowthInside1LastX64: string tokenFeesOwed0: string tokenFeesOwed1: string rewardGrowthInside: Array<string> padding: Array<string> } export class ProtocolPositionState { readonly bump: number readonly poolId: Address readonly tickLowerIndex: number readonly tickUpperIndex: number readonly liquidity: BN readonly feeGrowthInside0LastX64: BN readonly feeGrowthInside1LastX64: BN readonly tokenFeesOwed0: BN readonly tokenFeesOwed1: BN readonly rewardGrowthInside: Array<BN> readonly padding: Array<BN> static readonly discriminator = Buffer.from([ 100, 226, 145, 99, 146, 218, 160, 106, ]) static readonly layout = borsh.struct<ProtocolPositionState>([ borsh.u8("bump"), borshAddress("poolId"), borsh.i32("tickLowerIndex"), borsh.i32("tickUpperIndex"), borsh.u128("liquidity"), borsh.u128("feeGrowthInside0LastX64"), borsh.u128("feeGrowthInside1LastX64"), borsh.u64("tokenFeesOwed0"), borsh.u64("tokenFeesOwed1"), borsh.array(borsh.u128(), 3, "rewardGrowthInside"), borsh.array(borsh.u64(), 8, "padding"), ]) constructor(fields: ProtocolPositionStateFields) { this.bump = fields.bump this.poolId = fields.poolId this.tickLowerIndex = fields.tickLowerIndex this.tickUpperIndex = fields.tickUpperIndex this.liquidity = fields.liquidity this.feeGrowthInside0LastX64 = fields.feeGrowthInside0LastX64 this.feeGrowthInside1LastX64 = fields.feeGrowthInside1LastX64 this.tokenFeesOwed0 = fields.tokenFeesOwed0 this.tokenFeesOwed1 = fields.tokenFeesOwed1 this.rewardGrowthInside = fields.rewardGrowthInside this.padding = fields.padding } static async fetch( rpc: Rpc<GetAccountInfoApi>, address: Address, programId: Address = PROGRAM_ID ): Promise<ProtocolPositionState | 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<ProtocolPositionState | 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): ProtocolPositionState { if (!data.slice(0, 8).equals(ProtocolPositionState.discriminator)) { throw new Error("invalid account discriminator") } const dec = ProtocolPositionState.layout.decode(data.slice(8)) return new ProtocolPositionState({ bump: dec.bump, poolId: dec.poolId, tickLowerIndex: dec.tickLowerIndex, tickUpperIndex: dec.tickUpperIndex, liquidity: dec.liquidity, feeGrowthInside0LastX64: dec.feeGrowthInside0LastX64, feeGrowthInside1LastX64: dec.feeGrowthInside1LastX64, tokenFeesOwed0: dec.tokenFeesOwed0, tokenFeesOwed1: dec.tokenFeesOwed1, rewardGrowthInside: dec.rewardGrowthInside, padding: dec.padding, }) } toJSON(): ProtocolPositionStateJSON { return { bump: this.bump, poolId: this.poolId, tickLowerIndex: this.tickLowerIndex, tickUpperIndex: this.tickUpperIndex, liquidity: this.liquidity.toString(), feeGrowthInside0LastX64: this.feeGrowthInside0LastX64.toString(), feeGrowthInside1LastX64: this.feeGrowthInside1LastX64.toString(), tokenFeesOwed0: this.tokenFeesOwed0.toString(), tokenFeesOwed1: this.tokenFeesOwed1.toString(), rewardGrowthInside: this.rewardGrowthInside.map((item) => item.toString() ), padding: this.padding.map((item) => item.toString()), } } static fromJSON(obj: ProtocolPositionStateJSON): ProtocolPositionState { return new ProtocolPositionState({ bump: obj.bump, poolId: address(obj.poolId), tickLowerIndex: obj.tickLowerIndex, tickUpperIndex: obj.tickUpperIndex, liquidity: new BN(obj.liquidity), feeGrowthInside0LastX64: new BN(obj.feeGrowthInside0LastX64), feeGrowthInside1LastX64: new BN(obj.feeGrowthInside1LastX64), tokenFeesOwed0: new BN(obj.tokenFeesOwed0), tokenFeesOwed1: new BN(obj.tokenFeesOwed1), rewardGrowthInside: obj.rewardGrowthInside.map((item) => new BN(item)), padding: obj.padding.map((item) => new BN(item)), }) } }