getCoinsCG.js

const fs = require('fs');
const chalk = require('chalk');

//
//
// The purpose of this function is to gather all available tickers on CoinGecko and write them in JSON format to file.
// This is so the bot can check and verify coin existence, and also refer to the coins by their market ticker instead of the full name.
// This file should be run once before starting the bot for the first time. It will be auto-run by the bot after.
//
//


// Import coingecko-api
const CoinGecko = require('coingecko-api');

// Initiate the CoinGecko API Client
const CoinGeckoClient = new CoinGecko();

// Make API call and do JSON build operation
var update = async () => {
  let data, tickers = [];
  try {
    data = await CoinGeckoClient.coins.list();
    for (const value of data.data) {
      tickers.push(value.symbol.toUpperCase());
    }
  } catch (err) {
    if (data?.code) {
      console.log(chalk.red(`Unable to grab list of all CG coins: Error ${data.code}: ${data.message}`));
    }
  }

  //console.log(data);

  // Write the identification JSON to file
  fs.writeFileSync('./common/coinsCG.json', JSON.stringify(data.data));
  fs.writeFileSync('./common/coinsCGtickers.json', JSON.stringify(tickers));
  //console.log("CoinGecko coin list complete!");
};

update();

exports.update = update;