@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
133 lines • 5.37 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);
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}
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 () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
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return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__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.UserMetadata = 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 programId_1 = require("../programId");
/** Referrer account -> each owner can have multiple accounts for specific reserves */
class UserMetadata {
/** Pubkey of the referrer/owner - pubkey::default if no referrer */
referrer;
/** Bump used for validation of account address */
bump;
/** User lookup table - used to store all user accounts - atas for each reserve mint, each obligation PDA, UserMetadata itself and all referrer_token_states if there is a referrer */
userLookupTable;
/** User metadata account owner */
owner;
padding1;
padding2;
static discriminator = Buffer.from([
157, 214, 220, 235, 98, 135, 171, 28,
]);
static layout = borsh.struct([
borsh.publicKey("referrer"),
borsh.u64("bump"),
borsh.publicKey("userLookupTable"),
borsh.publicKey("owner"),
borsh.array(borsh.u64(), 51, "padding1"),
borsh.array(borsh.u64(), 64, "padding2"),
]);
constructor(fields) {
this.referrer = fields.referrer;
this.bump = fields.bump;
this.userLookupTable = fields.userLookupTable;
this.owner = fields.owner;
this.padding1 = fields.padding1;
this.padding2 = fields.padding2;
}
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(UserMetadata.discriminator)) {
throw new Error("invalid account discriminator");
}
const dec = UserMetadata.layout.decode(data.slice(8));
return new UserMetadata({
referrer: dec.referrer,
bump: dec.bump,
userLookupTable: dec.userLookupTable,
owner: dec.owner,
padding1: dec.padding1,
padding2: dec.padding2,
});
}
toJSON() {
return {
referrer: this.referrer.toString(),
bump: this.bump.toString(),
userLookupTable: this.userLookupTable.toString(),
owner: this.owner.toString(),
padding1: this.padding1.map((item) => item.toString()),
padding2: this.padding2.map((item) => item.toString()),
};
}
static fromJSON(obj) {
return new UserMetadata({
referrer: new web3_js_1.PublicKey(obj.referrer),
bump: new bn_js_1.default(obj.bump),
userLookupTable: new web3_js_1.PublicKey(obj.userLookupTable),
owner: new web3_js_1.PublicKey(obj.owner),
padding1: obj.padding1.map((item) => new bn_js_1.default(item)),
padding2: obj.padding2.map((item) => new bn_js_1.default(item)),
});
}
}
exports.UserMetadata = UserMetadata;
//# sourceMappingURL=UserMetadata.js.map