@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
179 lines • 8.6 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Reserve = void 0;
const web3_js_1 = require("@solana/web3.js");
const bn_js_1 = __importDefault(require("bn.js")); // eslint-disable-line @typescript-eslint/no-unused-vars
const borsh = __importStar(require("@coral-xyz/borsh")); // eslint-disable-line @typescript-eslint/no-unused-vars
const types = __importStar(require("../types")); // eslint-disable-line @typescript-eslint/no-unused-vars
const programId_1 = require("../programId");
class Reserve {
/** Version of the reserve */
version;
/** Last slot when supply and rates updated */
lastUpdate;
/** Lending market address */
lendingMarket;
farmCollateral;
farmDebt;
/** Reserve liquidity */
liquidity;
reserveLiquidityPadding;
/** Reserve collateral */
collateral;
reserveCollateralPadding;
/** Reserve configuration values */
config;
configPadding;
borrowedAmountOutsideElevationGroup;
/**
* Amount of token borrowed in lamport of debt asset in the given
* elevation group when this reserve is part of the collaterals.
*/
borrowedAmountsAgainstThisReserveInElevationGroups;
padding;
static discriminator = Buffer.from([
43, 242, 204, 202, 26, 247, 59, 127,
]);
static layout = borsh.struct([
borsh.u64("version"),
types.LastUpdate.layout("lastUpdate"),
borsh.publicKey("lendingMarket"),
borsh.publicKey("farmCollateral"),
borsh.publicKey("farmDebt"),
types.ReserveLiquidity.layout("liquidity"),
borsh.array(borsh.u64(), 150, "reserveLiquidityPadding"),
types.ReserveCollateral.layout("collateral"),
borsh.array(borsh.u64(), 150, "reserveCollateralPadding"),
types.ReserveConfig.layout("config"),
borsh.array(borsh.u64(), 117, "configPadding"),
borsh.u64("borrowedAmountOutsideElevationGroup"),
borsh.array(borsh.u64(), 32, "borrowedAmountsAgainstThisReserveInElevationGroups"),
borsh.array(borsh.u64(), 207, "padding"),
]);
constructor(fields) {
this.version = fields.version;
this.lastUpdate = new types.LastUpdate({ ...fields.lastUpdate });
this.lendingMarket = fields.lendingMarket;
this.farmCollateral = fields.farmCollateral;
this.farmDebt = fields.farmDebt;
this.liquidity = new types.ReserveLiquidity({ ...fields.liquidity });
this.reserveLiquidityPadding = fields.reserveLiquidityPadding;
this.collateral = new types.ReserveCollateral({ ...fields.collateral });
this.reserveCollateralPadding = fields.reserveCollateralPadding;
this.config = new types.ReserveConfig({ ...fields.config });
this.configPadding = fields.configPadding;
this.borrowedAmountOutsideElevationGroup =
fields.borrowedAmountOutsideElevationGroup;
this.borrowedAmountsAgainstThisReserveInElevationGroups =
fields.borrowedAmountsAgainstThisReserveInElevationGroups;
this.padding = fields.padding;
}
static async fetch(c, address, programId = programId_1.PROGRAM_ID) {
const info = await c.getAccountInfo(address);
if (info === null) {
return null;
}
if (!info.owner.equals(programId)) {
throw new Error("account doesn't belong to this program");
}
return this.decode(info.data);
}
static async fetchMultiple(c, addresses, programId = programId_1.PROGRAM_ID) {
const infos = await c.getMultipleAccountsInfo(addresses);
return infos.map((info) => {
if (info === null) {
return null;
}
if (!info.owner.equals(programId)) {
throw new Error("account doesn't belong to this program");
}
return this.decode(info.data);
});
}
static decode(data) {
if (!data.slice(0, 8).equals(Reserve.discriminator)) {
throw new Error("invalid account discriminator");
}
const dec = Reserve.layout.decode(data.slice(8));
return new Reserve({
version: dec.version,
lastUpdate: types.LastUpdate.fromDecoded(dec.lastUpdate),
lendingMarket: dec.lendingMarket,
farmCollateral: dec.farmCollateral,
farmDebt: dec.farmDebt,
liquidity: types.ReserveLiquidity.fromDecoded(dec.liquidity),
reserveLiquidityPadding: dec.reserveLiquidityPadding,
collateral: types.ReserveCollateral.fromDecoded(dec.collateral),
reserveCollateralPadding: dec.reserveCollateralPadding,
config: types.ReserveConfig.fromDecoded(dec.config),
configPadding: dec.configPadding,
borrowedAmountOutsideElevationGroup: dec.borrowedAmountOutsideElevationGroup,
borrowedAmountsAgainstThisReserveInElevationGroups: dec.borrowedAmountsAgainstThisReserveInElevationGroups,
padding: dec.padding,
});
}
toJSON() {
return {
version: this.version.toString(),
lastUpdate: this.lastUpdate.toJSON(),
lendingMarket: this.lendingMarket.toString(),
farmCollateral: this.farmCollateral.toString(),
farmDebt: this.farmDebt.toString(),
liquidity: this.liquidity.toJSON(),
reserveLiquidityPadding: this.reserveLiquidityPadding.map((item) => item.toString()),
collateral: this.collateral.toJSON(),
reserveCollateralPadding: this.reserveCollateralPadding.map((item) => item.toString()),
config: this.config.toJSON(),
configPadding: this.configPadding.map((item) => item.toString()),
borrowedAmountOutsideElevationGroup: this.borrowedAmountOutsideElevationGroup.toString(),
borrowedAmountsAgainstThisReserveInElevationGroups: this.borrowedAmountsAgainstThisReserveInElevationGroups.map((item) => item.toString()),
padding: this.padding.map((item) => item.toString()),
};
}
static fromJSON(obj) {
return new Reserve({
version: new bn_js_1.default(obj.version),
lastUpdate: types.LastUpdate.fromJSON(obj.lastUpdate),
lendingMarket: new web3_js_1.PublicKey(obj.lendingMarket),
farmCollateral: new web3_js_1.PublicKey(obj.farmCollateral),
farmDebt: new web3_js_1.PublicKey(obj.farmDebt),
liquidity: types.ReserveLiquidity.fromJSON(obj.liquidity),
reserveLiquidityPadding: obj.reserveLiquidityPadding.map((item) => new bn_js_1.default(item)),
collateral: types.ReserveCollateral.fromJSON(obj.collateral),
reserveCollateralPadding: obj.reserveCollateralPadding.map((item) => new bn_js_1.default(item)),
config: types.ReserveConfig.fromJSON(obj.config),
configPadding: obj.configPadding.map((item) => new bn_js_1.default(item)),
borrowedAmountOutsideElevationGroup: new bn_js_1.default(obj.borrowedAmountOutsideElevationGroup),
borrowedAmountsAgainstThisReserveInElevationGroups: obj.borrowedAmountsAgainstThisReserveInElevationGroups.map((item) => new bn_js_1.default(item)),
padding: obj.padding.map((item) => new bn_js_1.default(item)),
});
}
}
exports.Reserve = Reserve;
//# sourceMappingURL=Reserve.js.map