CoinLayer API Wrapper for Javascript

coinlayer.js

/**
 * CoinLayer API - Cryptocurrency exchange rates etc..
 * for use in the browser.
 *
 * License: MIT
 * Author: Ernst Reidinga - ERDesigns - 26/10/2022
 */

class CoinLayerAPIError extends Error {
  /**
   * Create new CoinLayerAPI Error instance
   * @param {Object} error
   */
  constructor(error) {
    super();
    this.code = error.code;
    this.name = `CoinLayerAPIError: ${error.code}`;
    this.message = error.message;
  }
}

export class CoinLayerAPI {
  __apiKey;

  /**
   * Create new Coin Layer API instance
   * @param {String} key
   */
  constructor(key) {
    if (!key || !key.length) {
      throw new CoinLayerAPIError({ message: "No api key defined!", code: 1 });
    }
    this.__apiKey = key;
  }

  /**
   * List of available crypto coins
   */
  get coins() {
    return [
      {
        symbol: "611",
        name: "SixEleven",
      },
      {
        symbol: "ABC",
        name: "AB-Chain",
      },
      {
        symbol: "ACP",
        name: "Anarchists Prime",
      },
      {
        symbol: "ACT",
        name: "ACT",
      },
      {
        symbol: "ACT*",
        name: "Achain",
      },
      {
        symbol: "ADA",
        name: "Cardano",
      },
      {
        symbol: "ADCN",
        name: "Asiadigicoin",
      },
      {
        symbol: "ADL",
        name: "Adelphoi",
      },
      {
        symbol: "ADX",
        name: "AdEx",
      },
      {
        symbol: "ADZ",
        name: "Adzcoin",
      },
      {
        symbol: "AE",
        name: "Aeternity",
      },
      {
        symbol: "AGI",
        name: "SingularityNET",
      },
      {
        symbol: "AIB",
        name: "AdvancedInternetBlock",
      },
      {
        symbol: "AIDOC",
        name: "AI Doctor",
      },
      {
        symbol: "AION",
        name: "Aion",
      },
      {
        symbol: "AIR",
        name: "AirToken",
      },
      {
        symbol: "ALT",
        name: "ALTcoin",
      },
      {
        symbol: "AMB",
        name: "Ambrosus",
      },
      {
        symbol: "AMM",
        name: "MicroMoney",
      },
      {
        symbol: "ANT",
        name: "Aragon",
      },
      {
        symbol: "APC",
        name: "AlpaCoin",
      },
      {
        symbol: "APPC",
        name: "AppCoins",
      },
      {
        symbol: "ARC",
        name: "ArcticCoin",
      },
      {
        symbol: "ARCT",
        name: "ArbitrageCT",
      },
      {
        symbol: "ARDR",
        name: "Ardor",
      },
      {
        symbol: "ARK",
        name: "ARK",
      },
      {
        symbol: "ARN",
        name: "Aeron",
      },
      {
        symbol: "ASAFE2",
        name: "Allsafe",
      },
      {
        symbol: "AST",
        name: "AirSwap",
      },
      {
        symbol: "ATB",
        name: "ATB coin",
      },
      {
        symbol: "ATM",
        name: "ATMChain",
      },
      {
        symbol: "AURS",
        name: "Aureus",
      },
      {
        symbol: "AVT",
        name: "AventCoin",
      },
      {
        symbol: "BAR",
        name: "TBIS token",
      },
      {
        symbol: "BASH",
        name: "LuckChain",
      },
      {
        symbol: "BAT",
        name: "Basic Attention Token",
      },
      {
        symbol: "BAY",
        name: "BitBay",
      },
      {
        symbol: "BBP",
        name: "BiblePay",
      },
      {
        symbol: "BCD",
        name: "Bitcoin Diamond",
      },
      {
        symbol: "BCH",
        name: "Bitcoin Cash / BCC",
      },
      {
        symbol: "BCN",
        name: "ByteCoin",
      },
      {
        symbol: "BCPT",
        name: "BlockMason Credit Protocol",
      },
      {
        symbol: "BEE",
        name: "Bee Token",
      },
      {
        symbol: "BIO",
        name: "Biocoin",
      },
      {
        symbol: "BLC",
        name: "BlakeCoin",
      },
      {
        symbol: "BLOCK",
        name: "BlockNet",
      },
      {
        symbol: "BLU",
        name: "BlueCoin",
      },
      {
        symbol: "BLZ",
        name: "Bluzelle",
      },
      {
        symbol: "BMC",
        name: "Blackmoon Crypto",
      },
      {
        symbol: "BNB",
        name: "Binance Coin",
      },
      {
        symbol: "BNT",
        name: "Bancor Network Token",
      },
      {
        symbol: "BOST",
        name: "BoostCoin",
      },
      {
        symbol: "BQ",
        name: "Bitqy",
      },
      {
        symbol: "BQX",
        name: "Ethos",
      },
      {
        symbol: "BRD",
        name: "Bread token",
      },
      {
        symbol: "BRIT",
        name: "BritCoin",
      },
      {
        symbol: "BT1",
        name: "Bitfinex Bitcoin Future",
      },
      {
        symbol: "BT2",
        name: "Bitcoin SegWit2X",
      },
      {
        symbol: "BTC",
        name: "Bitcoin",
      },
      {
        symbol: "BTCA",
        name: "Bitair",
      },
      {
        symbol: "BTCS",
        name: "Bitcoin Scrypt",
      },
      {
        symbol: "BTCZ",
        name: "BitcoinZ",
      },
      {
        symbol: "BTG",
        name: "Bitcoin Gold",
      },
      {
        symbol: "BTLC",
        name: "BitLuckCoin",
      },
      {
        symbol: "BTM",
        name: "BitMark",
      },
      {
        symbol: "BTM*",
        name: "Bytom",
      },
      {
        symbol: "BTQ",
        name: "BitQuark",
      },
      {
        symbol: "BTS",
        name: "Bitshares",
      },
      {
        symbol: "BTX",
        name: "Bitcore",
      },
      {
        symbol: "BURST",
        name: "BurstCoin",
      },
      {
        symbol: "CALC",
        name: "CaliphCoin",
      },
      {
        symbol: "CAS",
        name: "Cashaa",
      },
      {
        symbol: "CAT",
        name: "BlockCAT",
      },
      {
        symbol: "CCRB",
        name: "CryptoCarbon",
      },
      {
        symbol: "CDT",
        name: "CoinDash",
      },
      {
        symbol: "CESC",
        name: "Crypto Escudo",
      },
      {
        symbol: "CHAT",
        name: "ChatCoin",
      },
      {
        symbol: "CJ",
        name: "CryptoJacks",
      },
      {
        symbol: "CL",
        name: "CoinLancer",
      },
      {
        symbol: "CLD",
        name: "Cloud",
      },
      {
        symbol: "CLOAK",
        name: "CloakCoin",
      },
      {
        symbol: "CMT*",
        name: "CyberMiles",
      },
      {
        symbol: "CND",
        name: "Cindicator",
      },
      {
        symbol: "CNX",
        name: "Cryptonex",
      },
      {
        symbol: "CPC",
        name: "CapriCoin",
      },
      {
        symbol: "CRAVE",
        name: "CraveCoin",
      },
      {
        symbol: "CRC",
        name: "CrowdCoin",
      },
      {
        symbol: "CRE",
        name: "Credits",
      },
      {
        symbol: "CRW",
        name: "Crown Coin",
      },
      {
        symbol: "CTO",
        name: "Crypto",
      },
      {
        symbol: "CTR",
        name: "Centra",
      },
      {
        symbol: "CVC",
        name: "Civic",
      },
      {
        symbol: "DAS",
        name: "DAS",
      },
      {
        symbol: "DASH",
        name: "DigitalCash",
      },
      {
        symbol: "DAT",
        name: "Datum",
      },
      {
        symbol: "DATA",
        name: "Streamr DATAcoin",
      },
      {
        symbol: "DBC",
        name: "DeepBrain Chain",
      },
      {
        symbol: "DBET",
        name: "Decent.bet",
      },
      {
        symbol: "DCN",
        name: "Dentacoin",
      },
      {
        symbol: "DCR",
        name: "Decred",
      },
      {
        symbol: "DCT",
        name: "Decent",
      },
      {
        symbol: "DEEP",
        name: "Deep Gold",
      },
      {
        symbol: "DENT",
        name: "Dent",
      },
      {
        symbol: "DGB",
        name: "DigiByte",
      },
      {
        symbol: "DGD",
        name: "Digix DAO",
      },
      {
        symbol: "DIM",
        name: "DIMCOIN",
      },
      {
        symbol: "DIME",
        name: "DimeCoin",
      },
      {
        symbol: "DMD",
        name: "Diamond",
      },
      {
        symbol: "DNT",
        name: "district0x",
      },
      {
        symbol: "DOGE",
        name: "Dogecoin",
      },
      {
        symbol: "DRGN",
        name: "Dragonchain",
      },
      {
        symbol: "DRZ",
        name: "Droidz",
      },
      {
        symbol: "DSH",
        name: "Dashcoin",
      },
      {
        symbol: "DTA",
        name: "Data",
      },
      {
        symbol: "EC",
        name: "Eclipse",
      },
      {
        symbol: "EDG",
        name: "Edgeless",
      },
      {
        symbol: "EDO",
        name: "Eidoo",
      },
      {
        symbol: "EDR",
        name: "E-Dinar Coin",
      },
      {
        symbol: "EKO",
        name: "EchoLink",
      },
      {
        symbol: "ELA",
        name: "Elastos",
      },
      {
        symbol: "ELF",
        name: "aelf",
      },
      {
        symbol: "EMC",
        name: "Emercoin",
      },
      {
        symbol: "EMGO",
        name: "MobileGo",
      },
      {
        symbol: "ENG",
        name: "Enigma",
      },
      {
        symbol: "ENJ",
        name: "Enjin Coin",
      },
      {
        symbol: "EOS",
        name: "EOS",
      },
      {
        symbol: "ERT",
        name: "Esports.com",
      },
      {
        symbol: "ETC",
        name: "Ethereum Classic",
      },
      {
        symbol: "ETH",
        name: "Ethereum",
      },
      {
        symbol: "ETN",
        name: "Electroneum",
      },
      {
        symbol: "ETP",
        name: "Metaverse",
      },
      {
        symbol: "ETT",
        name: "EncryptoTel",
      },
      {
        symbol: "EVR",
        name: "Everus",
      },
      {
        symbol: "EVX",
        name: "Everex",
      },
      {
        symbol: "FCT",
        name: "Factoids",
      },
      {
        symbol: "FLP",
        name: "Gameflip",
      },
      {
        symbol: "FOTA",
        name: "Fortuna",
      },
      {
        symbol: "FRST",
        name: "FirstCoin",
      },
      {
        symbol: "FUEL",
        name: "Etherparty",
      },
      {
        symbol: "FUN",
        name: "FunFair",
      },
      {
        symbol: "FUNC",
        name: "FunCoin",
      },
      {
        symbol: "FUTC",
        name: "FutCoin",
      },
      {
        symbol: "GAME",
        name: "Gamecredits",
      },
      {
        symbol: "GAS",
        name: "Gas",
      },
      {
        symbol: "GBYTE",
        name: "Byteball",
      },
      {
        symbol: "GMX",
        name: "Goldmaxcoin",
      },
      {
        symbol: "GNO",
        name: "Gnosis",
      },
      {
        symbol: "GNT",
        name: "Golem Network Token",
      },
      {
        symbol: "GNX",
        name: "Genaro Network",
      },
      {
        symbol: "GRC",
        name: "GridCoin",
      },
      {
        symbol: "GRS",
        name: "Groestlcoin ",
      },
      {
        symbol: "GRWI",
        name: "Growers International",
      },
      {
        symbol: "GTC",
        name: "Game",
      },
      {
        symbol: "GTO",
        name: "GIFTO",
      },
      {
        symbol: "GUP",
        name: "Guppy",
      },
      {
        symbol: "GVT",
        name: "Genesis Vision",
      },
      {
        symbol: "GXS",
        name: "GXShares",
      },
      {
        symbol: "HAC",
        name: "Hackspace Capital",
      },
      {
        symbol: "HNC",
        name: "Hellenic Coin",
      },
      {
        symbol: "HSR",
        name: "Hshare",
      },
      {
        symbol: "HST",
        name: "Decision Token",
      },
      {
        symbol: "HVN",
        name: "Hive Project",
      },
      {
        symbol: "ICN",
        name: "Iconomi",
      },
      {
        symbol: "ICOS",
        name: "ICOBox",
      },
      {
        symbol: "ICX",
        name: "ICON Project",
      },
      {
        symbol: "IGNIS",
        name: "Ignis",
      },
      {
        symbol: "ILC",
        name: "ILCoin",
      },
      {
        symbol: "INK",
        name: "Ink",
      },
      {
        symbol: "INS",
        name: "INS Ecosystem",
      },
      {
        symbol: "INSN",
        name: "Insane Coin",
      },
      {
        symbol: "INT",
        name: "Internet Node Token",
      },
      {
        symbol: "IOP",
        name: "Internet of People",
      },
      {
        symbol: "IOST",
        name: "IOS token",
      },
      {
        symbol: "ITC",
        name: "IoT Chain",
      },
      {
        symbol: "KCS",
        name: "Kucoin",
      },
      {
        symbol: "KICK",
        name: "KickCoin",
      },
      {
        symbol: "KIN",
        name: "Kin",
      },
      {
        symbol: "KLC",
        name: "KiloCoin",
      },
      {
        symbol: "KMD",
        name: "Komodo",
      },
      {
        symbol: "KNC",
        name: "Kyber Network",
      },
      {
        symbol: "KRB",
        name: "Karbo",
      },
      {
        symbol: "LA",
        name: "LATOKEN",
      },
      {
        symbol: "LEND",
        name: "EthLend",
      },
      {
        symbol: "LEO",
        name: "LEOcoin",
      },
      {
        symbol: "LINDA",
        name: "Linda",
      },
      {
        symbol: "LINK",
        name: "ChainLink",
      },
      {
        symbol: "LOC",
        name: "Loco",
      },
      {
        symbol: "LOG",
        name: "Wood Coin",
      },
      {
        symbol: "LRC",
        name: "Loopring",
      },
      {
        symbol: "LSK",
        name: "Lisk",
      },
      {
        symbol: "LTC",
        name: "Litecoin",
      },
      {
        symbol: "LUN",
        name: "Lunyr",
      },
      {
        symbol: "LUX",
        name: "LUXCoin",
      },
      {
        symbol: "MAID",
        name: "MaidSafe Coin",
      },
      {
        symbol: "MANA",
        name: "Decentraland",
      },
      {
        symbol: "MCAP",
        name: "MCAP",
      },
      {
        symbol: "MCO",
        name: "Monaco",
      },
      {
        symbol: "MDA",
        name: "Moeda",
      },
      {
        symbol: "MDS",
        name: "MediShares",
      },
      {
        symbol: "MIOTA",
        name: "IOTA",
      },
      {
        symbol: "MKR",
        name: "Maker",
      },
      {
        symbol: "MLN",
        name: "Melon",
      },
      {
        symbol: "MNX",
        name: "MinexCoin",
      },
      {
        symbol: "MOD",
        name: "Modum",
      },
      {
        symbol: "MOIN",
        name: "MoinCoin",
      },
      {
        symbol: "MONA",
        name: "MonaCoin",
      },
      {
        symbol: "MTL",
        name: "Metal",
      },
      {
        symbol: "MTN*",
        name: "Medicalchain",
      },
      {
        symbol: "MTX",
        name: "Matryx",
      },
      {
        symbol: "NAS",
        name: "Nebulas",
      },
      {
        symbol: "NAV",
        name: "NavCoin",
      },
      {
        symbol: "NBT",
        name: "NuBits",
      },
      {
        symbol: "NDC",
        name: "NeverDie",
      },
      {
        symbol: "NEBL",
        name: "Neblio",
      },
      {
        symbol: "NEO",
        name: "NEO",
      },
      {
        symbol: "NEU",
        name: "Neumark",
      },
      {
        symbol: "NEWB",
        name: "Newbium",
      },
      {
        symbol: "NGC",
        name: "NagaCoin",
      },
      {
        symbol: "NKC",
        name: "Nukecoinz",
      },
      {
        symbol: "NLC2",
        name: "NoLimitCoin",
      },
      {
        symbol: "NMC",
        name: "NameCoin",
      },
      {
        symbol: "NMR",
        name: "Numerai",
      },
      {
        symbol: "NULS",
        name: "Nuls",
      },
      {
        symbol: "NVC",
        name: "NovaCoin",
      },
      {
        symbol: "NXT",
        name: "Nxt",
      },
      {
        symbol: "OAX",
        name: "OpenANX",
      },
      {
        symbol: "OBITS",
        name: "Obits Coin",
      },
      {
        symbol: "OC",
        name: "OrangeCoin",
      },
      {
        symbol: "OCN",
        name: "Odyssey",
      },
      {
        symbol: "ODN",
        name: "Obsidian",
      },
      {
        symbol: "OK",
        name: "OKCash",
      },
      {
        symbol: "OMG",
        name: "OmiseGo",
      },
      {
        symbol: "OMNI",
        name: "Omni",
      },
      {
        symbol: "ORE",
        name: "Galactrum",
      },
      {
        symbol: "ORME",
        name: "Ormeus Coin",
      },
      {
        symbol: "OST",
        name: "Simple Token",
      },
      {
        symbol: "OTN",
        name: "Open Trading Network",
      },
      {
        symbol: "OTX",
        name: "Octanox",
      },
      {
        symbol: "OXY",
        name: "Oxycoin",
      },
      {
        symbol: "PART",
        name: "Particl",
      },
      {
        symbol: "PAY",
        name: "TenX",
      },
      {
        symbol: "PBT",
        name: "Primalbase",
      },
      {
        symbol: "PCS",
        name: "Pabyosi Coin",
      },
      {
        symbol: "PIVX",
        name: "Private Instant Verified Transaction",
      },
      {
        symbol: "PIZZA",
        name: "PizzaCoin",
      },
      {
        symbol: "PLBT",
        name: "Polybius",
      },
      {
        symbol: "PLR",
        name: "Pillar",
      },
      {
        symbol: "POE",
        name: "Po.et",
      },
      {
        symbol: "POLY",
        name: "PolyBit",
      },
      {
        symbol: "POSW",
        name: "PoSWallet",
      },
      {
        symbol: "POWR",
        name: "Power Ledger",
      },
      {
        symbol: "PPC",
        name: "PeerCoin",
      },
      {
        symbol: "PPT",
        name: "Populous",
      },
      {
        symbol: "PPY",
        name: "Peerplays",
      },
      {
        symbol: "PRC",
        name: "ProsperCoin",
      },
      {
        symbol: "PRES",
        name: "President Trump",
      },
      {
        symbol: "PRG",
        name: "Paragon",
      },
      {
        symbol: "PRL",
        name: "Oyster Pearl",
      },
      {
        symbol: "PRO",
        name: "Propy",
      },
      {
        symbol: "PURA",
        name: "Pura",
      },
      {
        symbol: "PUT",
        name: "PutinCoin",
      },
      {
        symbol: "QASH",
        name: "Quoine Liquid",
      },
      {
        symbol: "QAU",
        name: "Quantum",
      },
      {
        symbol: "QSP",
        name: "Quantstamp",
      },
      {
        symbol: "QTUM",
        name: "QTUM",
      },
      {
        symbol: "QUN",
        name: "QunQun",
      },
      {
        symbol: "R",
        name: "Revain",
      },
      {
        symbol: "RBIES",
        name: "Rubies",
      },
      {
        symbol: "RCN",
        name: "Ripio",
      },
      {
        symbol: "RDD",
        name: "ReddCoin",
      },
      {
        symbol: "RDN",
        name: "RadonPay",
      },
      {
        symbol: "RDN*",
        name: "Raiden Network",
      },
      {
        symbol: "REBL",
        name: "Rebellious",
      },
      {
        symbol: "REE",
        name: "ReeCoin",
      },
      {
        symbol: "REP",
        name: "Augur",
      },
      {
        symbol: "REQ",
        name: "Request Network",
      },
      {
        symbol: "REV",
        name: "Revenu",
      },
      {
        symbol: "RGC",
        name: "RG Coin",
      },
      {
        symbol: "RHOC",
        name: "RChain",
      },
      {
        symbol: "RIYA",
        name: "Etheriya",
      },
      {
        symbol: "RKC",
        name: "Royal Kingdom Coin",
      },
      {
        symbol: "RLC",
        name: "iEx.ec",
      },
      {
        symbol: "RPX",
        name: "Red Pulse",
      },
      {
        symbol: "RUFF",
        name: "Ruff",
      },
      {
        symbol: "SALT",
        name: "Salt Lending",
      },
      {
        symbol: "SAN",
        name: "Santiment",
      },
      {
        symbol: "SBC",
        name: "StableCoin",
      },
      {
        symbol: "SC",
        name: "Siacoin",
      },
      {
        symbol: "SENT",
        name: "Sentinel",
      },
      {
        symbol: "SHIFT",
        name: "Shift",
      },
      {
        symbol: "SIB",
        name: "SibCoin",
      },
      {
        symbol: "SMART",
        name: "SmartCash",
      },
      {
        symbol: "SMLY",
        name: "SmileyCoin",
      },
      {
        symbol: "SMT*",
        name: "SmartMesh",
      },
      {
        symbol: "SNC",
        name: "SunContract",
      },
      {
        symbol: "SNGLS",
        name: "SingularDTV",
      },
      {
        symbol: "SNM",
        name: "SONM",
      },
      {
        symbol: "SNT",
        name: "Status Network Token",
      },
      {
        symbol: "SPK",
        name: "Sparks",
      },
      {
        symbol: "SRN",
        name: "SirinLabs",
      },
      {
        symbol: "STEEM",
        name: "Steem",
      },
      {
        symbol: "STK",
        name: "STK Token",
      },
      {
        symbol: "STORJ",
        name: "Storj",
      },
      {
        symbol: "STRAT",
        name: "Stratis",
      },
      {
        symbol: "STU",
        name: "BitJob",
      },
      {
        symbol: "STX",
        name: "Stox",
      },
      {
        symbol: "SUB",
        name: "Substratum Network",
      },
      {
        symbol: "SUR",
        name: "Suretly",
      },
      {
        symbol: "SWFTC",
        name: "SwftCoin",
      },
      {
        symbol: "SYS",
        name: "SysCoin",
      },
      {
        symbol: "TAAS",
        name: "Token as a Service",
      },
      {
        symbol: "TESLA",
        name: "TeslaCoilCoin",
      },
      {
        symbol: "THC",
        name: "The Hempcoin",
      },
      {
        symbol: "THETA",
        name: "Theta",
      },
      {
        symbol: "THS",
        name: "TechShares",
      },
      {
        symbol: "TIO",
        name: "Trade.io",
      },
      {
        symbol: "TKN",
        name: "TokenCard ",
      },
      {
        symbol: "TKY",
        name: "THEKEY Token",
      },
      {
        symbol: "TNB",
        name: "Time New Bank",
      },
      {
        symbol: "TNT",
        name: "Tierion",
      },
      {
        symbol: "TOA",
        name: "TOA Coin",
      },
      {
        symbol: "TRC",
        name: "TerraCoin",
      },
      {
        symbol: "TRIG",
        name: "Trigger",
      },
      {
        symbol: "TRST",
        name: "TrustCoin",
      },
      {
        symbol: "TRUMP",
        name: "TrumpCoin",
      },
      {
        symbol: "TRX",
        name: "Tronix",
      },
      {
        symbol: "UBQ",
        name: "Ubiq",
      },
      {
        symbol: "UNO",
        name: "Unobtanium",
      },
      {
        symbol: "UNRC",
        name: "UniversalRoyalCoin",
      },
      {
        symbol: "UQC",
        name: "Uquid Coin",
      },
      {
        symbol: "USDT",
        name: "Tether",
      },
      {
        symbol: "UTK",
        name: "Utrust",
      },
      {
        symbol: "UTT",
        name: "United Traders Token",
      },
      {
        symbol: "VEE",
        name: "BLOCKv",
      },
      {
        symbol: "VEN",
        name: "Vechain",
      },
      {
        symbol: "VERI",
        name: "Veritaseum",
      },
      {
        symbol: "VIA",
        name: "ViaCoin",
      },
      {
        symbol: "VIB",
        name: "Viberate",
      },
      {
        symbol: "VIBE",
        name: "VIBEHub",
      },
      {
        symbol: "VOISE",
        name: "Voise",
      },
      {
        symbol: "VOX",
        name: "Voxels",
      },
      {
        symbol: "VRS",
        name: "Veros",
      },
      {
        symbol: "VTC",
        name: "VertCoin",
      },
      {
        symbol: "VUC",
        name: "Virta Unique Coin",
      },
      {
        symbol: "WABI",
        name: "WaBi",
      },
      {
        symbol: "WAVES",
        name: "Waves",
      },
      {
        symbol: "WAX",
        name: "Worldwide Asset eXchange",
      },
      {
        symbol: "WC",
        name: "WhiteCoin",
      },
      {
        symbol: "WGR",
        name: "Wagerr",
      },
      {
        symbol: "WINGS",
        name: "Wings DAO",
      },
      {
        symbol: "WLK",
        name: "Wolk",
      },
      {
        symbol: "WOP",
        name: "WorldPay",
      },
      {
        symbol: "WPR",
        name: "WePower",
      },
      {
        symbol: "WRC",
        name: "Worldcore",
      },
      {
        symbol: "WTC",
        name: "Waltonchain",
      },
      {
        symbol: "XAUR",
        name: "Xaurum",
      },
      {
        symbol: "XBP",
        name: "Black Pearl Coin",
      },
      {
        symbol: "XBY",
        name: "XtraBYtes",
      },
      {
        symbol: "XCP",
        name: "CounterParty",
      },
      {
        symbol: "XCXT",
        name: "CoinonatX",
      },
      {
        symbol: "XDN",
        name: "DigitalNote ",
      },
      {
        symbol: "XEM",
        name: "NEM",
      },
      {
        symbol: "XGB",
        name: "GoldenBird",
      },
      {
        symbol: "XHI",
        name: "HiCoin",
      },
      {
        symbol: "XID",
        name: "Sphre AIR",
      },
      {
        symbol: "XLM",
        name: "Stellar",
      },
      {
        symbol: "XMR",
        name: "Monero",
      },
      {
        symbol: "XNC",
        name: "XenCoin",
      },
      {
        symbol: "XRB",
        name: "Nano",
      },
      {
        symbol: "XRP",
        name: "Ripple",
      },
      {
        symbol: "XTO",
        name: "Tao",
      },
      {
        symbol: "XTZ",
        name: "Tezos",
      },
      {
        symbol: "XUC",
        name: "Exchange Union",
      },
      {
        symbol: "XVG",
        name: "Verge",
      },
      {
        symbol: "XZC",
        name: "ZCoin",
      },
      {
        symbol: "YEE",
        name: "Yee",
      },
      {
        symbol: "YOC",
        name: "YoCoin",
      },
      {
        symbol: "YOYOW",
        name: "Yoyow",
      },
      {
        symbol: "ZBC",
        name: "Zilbercoin",
      },
      {
        symbol: "ZCL",
        name: "ZClassic",
      },
      {
        symbol: "ZEC",
        name: "ZCash",
      },
      {
        symbol: "ZEN",
        name: "ZenCash",
      },
      {
        symbol: "ZIL",
        name: "Zilliqa",
      },
      {
        symbol: "ZNY",
        name: "BitZeny",
      },
      {
        symbol: "ZRX",
        name: "0x",
      },
      {
        symbol: "ZSC",
        name: "Zeusshield",
      },
    ];
  }

  /**
   * Convert name to coin or return coin if valid
   * @param {String} str
   */
  getCoin(str) {
    const findCoin = this.coins.find((c) => {
      return c.symbol === str.toUpperCase();
    });
    if (findCoin) {
      return findCoin.symbol;
    }
    const findName = this.coins.find((coin) => {
      return coin.name.toUpperCase() === str.toUpperCase();
    });
    if (findName) {
      return findName.symbol;
    }
    return str;
  }

  /**
   * Convert coin (BTC) to name (Bitcoin)
   * @param {String} coin
   */
  coinToName(coin) {
    const res = this.coins.find((c) => {
      return c.symbol === coin.toUpperCase();
    });
    return res ? res.name : coin;
  }

  /**
   * Convert name (Bitcoin) to coin (BTC)
   * @param {String} name
   */
  nameToCoin(name) {
    const res = this.coins.find((coin) => {
      return coin.name.toUpperCase() === name.toUpperCase();
    });
    return res ? res.symbol : name;
  }

  /**
   * HTTP Get Request
   * @param {String} url
   * @returns Promise
   */
  __get(url) {
    return new Promise((resolve, reject) => {
      fetch(url)
        .then((response) => response.json())
        .then((data) => resolve(data))
        .catch((error) => reject(error));
    });
  }

  /**
   * Get exchange rate for coin
   * @param {String} name
   * @returns Promise
   */
  live(coin) {
    return new Promise((resolve, reject) => {
      // URL
      const url = new URL("https://api.coinlayer.com/live");
      url.searchParams.append("access_key", this.__apiKey);
      url.searchParams.append("target", "eur");
      url.searchParams.append("symbols", this.getCoin(coin));
      // GET
      this.__get(url.href)
        .then((res) => {
          if (res.success) {
            resolve(res.rates);
          } else {
            reject(res);
          }
        })
        .catch((error) => {
          reject(error);
        });
    });
  }

  /**
   * Convert amount between any one cryptocurrency and standard (fiat) currency
   * @param {String} from
   * @param {String} to
   * @param {Number} amount
   * @returns Promise
   */
  convert(from, to, amount) {
    return new Promise((resolve, reject) => {
      // URL
      const url = new URL("https://api.coinlayer.com/convert");
      url.searchParams.append("access_key", this.__apiKey);
      url.searchParams.append("from", this.getCoin(from));
      url.searchParams.append("to", this.getCoin(to));
      url.searchParams.append("amount", amount);
      // GET
      this.__get(url.href)
        .then((res) => {
          if (res.success) {
            resolve(res);
          } else {
            reject(res);
          }
        })
        .catch((error) => {
          reject(error);
        });
    });
  }
}