@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
57 lines • 2.1 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.KAMINO_API_RETRY = exports.KAMINO_CDN_RETRY = void 0;
exports.getMarketsFromApi = getMarketsFromApi;
const axios_1 = __importDefault(require("axios"));
const classes_1 = require("../classes");
const utils_1 = require("../utils");
const exponential_backoff_1 = require("exponential-backoff");
const lib_1 = require("../lib");
/**
* Fetch config from the API
* A good place to start to find active klend markets without expensive RPC calls
*
* @param programId - The program id to retrieve config for
* @param source - CDN is a json file hosted in the cloud, API is a webserver
*/
async function getMarketsFromApi(programId = lib_1.PROGRAM_ID, source = 'CDN') {
let configs = {};
if (source === 'CDN') {
configs = (await (0, exponential_backoff_1.backOff)(() => axios_1.default.get(utils_1.CDN_ENDPOINT), exports.KAMINO_CDN_RETRY)).data[programId.toString()];
}
if (!configs || (0, classes_1.isEmptyObject)(configs)) {
const API_ENDPOINT = (0, utils_1.getApiEndpoint)(programId);
configs = (await (0, exponential_backoff_1.backOff)(() => axios_1.default.get(API_ENDPOINT), exports.KAMINO_API_RETRY)).data;
}
return configs;
}
exports.KAMINO_CDN_RETRY = {
maxDelay: 1000,
numOfAttempts: 3,
startingDelay: 10,
retry: (e, attemptNumber) => {
console.warn(e);
console.warn({
attemptNumber,
message: 'kamino CDN call failed, retrying with exponential backoff...',
});
return true;
},
};
exports.KAMINO_API_RETRY = {
maxDelay: 1000,
numOfAttempts: 3,
startingDelay: 10,
retry: (e, attemptNumber) => {
console.warn(e);
console.warn({
attemptNumber,
message: 'api.kamino.finance call failed, retrying with exponential backoff...',
});
return true;
},
};
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