coingecko-tokens/lib.esm/getTokenList.js

Aggregated list of Token Lists from CoinGecko

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.tokenValidator = exports.tokenListValidator = exports.ethers = void 0;
exports.rebuildTokenList = rebuildTokenList;
exports.getTokenList = getTokenList;
const ethers_1 = require("ethers");
const token_lists_1 = require("@uniswap/token-lists");
const ajv_1 = require("./ajv");
exports.ethers = globalThis?.ethers || ethers_1.ethers;
exports.tokenListValidator = ajv_1.ajv.compile(token_lists_1.schema);
exports.tokenValidator = (() => {
    const tokenSchema = JSON.parse(JSON.stringify(token_lists_1.schema));
    delete tokenSchema.type;
    delete tokenSchema.properties;
    delete tokenSchema.required;
    tokenSchema['$id'] = 'Uniswap Token Schema';
    tokenSchema['$ref'] = '#/definitions/TokenInfo';
    return ajv_1.ajv.compile(tokenSchema);
})();
// Rebuild tokenlist in case if remote list is incorrect ( in case of coingecko )
async function rebuildTokenList(url, tokenList) {
    const newList = JSON.parse(JSON.stringify(tokenList));
    if (newList.tokens.length > 1) {
        newList.tokens.length = 1;
    }
    if (!(0, exports.tokenListValidator)(newList)) {
        throw new Error(`${url} validation failed: ${JSON.stringify(exports.tokenListValidator.errors, null, 2)}`);
    }
    newList.tokens = tokenList.tokens
        // Filter out invalid token objects (sometimes happen with coingecko lists)
        .filter((token) => {
        return (0, exports.tokenValidator)(token);
    })
        // Format token addresses to checksummed format
        .map((token) => {
        token.address = exports.ethers.getAddress(token.address);
        return token;
    });
    // Double check list
    if (!(0, exports.tokenListValidator)(newList)) {
        throw new Error(`${url} validation failed: ${JSON.stringify(exports.tokenListValidator.errors, null, 2)}`);
    }
    return newList;
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
async function getTokenList(url, fetchParams) {
    const resp = await fetch(url, {
        ...(fetchParams || {}),
        method: 'GET',
        signal: fetchParams?.signal || AbortSignal.timeout(60 * 1000),
    });
    if (!resp.ok) {
        throw new Error(resp.statusText);
    }
    const list = (await resp.json());
    if (fetchParams?.rebuildList) {
        return rebuildTokenList(url, list);
    }
    if (!(0, exports.tokenListValidator)(list)) {
        throw new Error(`${url} validation failed: ${JSON.stringify(exports.tokenListValidator.errors, null, 2)}`);
    }
    return list;
}