@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
88 lines • 3.48 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getAllObligationAccounts = getAllObligationAccounts;
exports.getAllReserveAccounts = getAllReserveAccounts;
exports.getAllLendingMarketAccounts = getAllLendingMarketAccounts;
const kit_1 = require("@solana/kit");
const accounts_1 = require("../@codegen/klend/accounts");
const programId_1 = require("../@codegen/klend/programId");
const base58Decoder = (0, kit_1.getBase58Decoder)();
async function* getAllObligationAccounts(connection) {
// Poor-man's paging...
for (let i = 0; i < 256; i++) {
const obligations = await connection
.getProgramAccounts(programId_1.PROGRAM_ID, {
filters: [
{
dataSize: BigInt(accounts_1.Obligation.layout.span + 8),
},
{
memcmp: {
offset: 0n,
bytes: base58Decoder.decode(accounts_1.Obligation.discriminator),
encoding: 'base58',
},
},
{
memcmp: {
offset: 64n,
bytes: base58Decoder.decode(Buffer.from([i])), // ...via sharding by userId's first byte (just as a source of randomness)
encoding: 'base58',
},
},
],
encoding: 'base64',
})
.send();
for (const obligation of obligations) {
yield [obligation.pubkey, accounts_1.Obligation.decode(Buffer.from(obligation.account.data[0], 'base64'))];
}
}
}
async function* getAllReserveAccounts(rpc) {
// due to relatively low count of reserves, we technically don't really need a generator, but let's keep it consistent within this file
const reserves = await rpc
.getProgramAccounts(programId_1.PROGRAM_ID, {
filters: [
{
dataSize: BigInt(accounts_1.Reserve.layout.span + 8),
},
{
memcmp: {
offset: 0n,
bytes: base58Decoder.decode(accounts_1.Reserve.discriminator),
encoding: 'base58',
},
},
],
encoding: 'base64',
})
.send();
for (const reserve of reserves) {
yield [reserve.pubkey, accounts_1.Reserve.decode(Buffer.from(reserve.account.data[0], 'base64'))];
}
}
async function* getAllLendingMarketAccounts(connection, programId = programId_1.PROGRAM_ID) {
// due to relatively very low count of lending markets, we technically don't really need a generator, but let's keep it consistent within this file
const lendingMarkets = await connection
.getProgramAccounts(programId, {
filters: [
{
dataSize: BigInt(accounts_1.LendingMarket.layout.span + 8),
},
{
memcmp: {
offset: 0n,
bytes: base58Decoder.decode(accounts_1.LendingMarket.discriminator),
encoding: 'base58',
},
},
],
encoding: 'base64',
})
.send();
for (const lendingMarket of lendingMarkets) {
yield [lendingMarket.pubkey, accounts_1.LendingMarket.decode(Buffer.from(lendingMarket.account.data[0], 'base64'))];
}
}
//# sourceMappingURL=accountListing.js.map