@kamino-finance/klend-sdk/dist/utils/api.js

Typescript SDK for interacting with the Kamino Lending (klend) protocol

"use strict";
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
 * @param filterOptions - Config options to filter markets by
 */
async function getMarketsFromApi(programId = lib_1.PROGRAM_ID, source = 'CDN', filterOptions = {}) {
    let unfilteredConfigs = {};
    if (source === 'CDN') {
        unfilteredConfigs = (await (0, exponential_backoff_1.backOff)(() => axios_1.default.get(utils_1.CDN_ENDPOINT), exports.KAMINO_CDN_RETRY)).data[programId.toString()];
    }
    if (!unfilteredConfigs || (0, classes_1.isEmptyObject)(unfilteredConfigs)) {
        const API_ENDPOINT = (0, utils_1.getApiEndpoint)(programId);
        unfilteredConfigs = (await (0, exponential_backoff_1.backOff)(() => axios_1.default.get(API_ENDPOINT), exports.KAMINO_API_RETRY)).data;
    }
    return unfilteredConfigs.filter((c) => {
        if (filterOptions.isCurated !== undefined) {
            return c.isCurated === filterOptions.isCurated;
        }
        return true;
    });
}
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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