text: 'use strict';
  
  // ----------------------------------------------------------------------------
  
  const Exchange = require ('./base/Exchange');
  const { InsufficientFunds, ArgumentsRequired, ExchangeError, InvalidOrder, InvalidAddress, AuthenticationError, NotSupported, OrderNotFound, OnMaintenance, PermissionDenied, RateLimitExceeded } = require ('./base/errors');
  const { TICK_SIZE } = require ('./base/functions/number');
  
  // ----------------------------------------------------------------------------
  
  module.exports = class coinbasepro extends Exchange {
      describe () {
          return this.deepExtend (super.describe (), {
              'id': 'coinbasepro',
              'name': 'Coinbase Pro',
              'countries': [ 'US' ],
              'rateLimit': 1000,
              'userAgent': this.userAgents['chrome'],
              'pro': true,
              'has': {
                  'cancelAllOrders': true,
                  'cancelOrder': true,
                  'CORS': true,
                  'createDepositAddress': true,
                  'createOrder': true,
                  'deposit': true,
                  'fetchAccounts': true,
                  'fetchBalance': true,
                  'fetchCurrencies': true,
                  'fetchClosedOrders': true,
                  'fetchDepositAddress': false, // the exchange does not have this method, only createDepositAddress, see https://github.com/ccxt/ccxt/pull/7405
                  'fetchMarkets': true,
                  'fetchMyTrades': true,
                  'fetchOHLCV': true,
                  'fetchOpenOrders': true,
                  'fetchOrder': true,
                  'fetchOrderBook': true,
                  'fetchOrders': true,
                  'fetchOrderTrades': true,
                  'fetchTime': true,
                  'fetchTicker': true,
                  'fetchTrades': true,
                  'fetchTransactions': true,
                  'withdraw': true,
                  'fetchDeposits': true,
                  'fetchWithdrawals': true,
              },
              'timeframes': {
                  '1m': 60,
                  '5m': 300,
                  '15m': 900,
                  '1h': 3600,
                  '6h': 21600,
                  '1d': 86400,
              },
              'urls': {
                  'test': {
                      'public': 'https://api-public.sandbox.pro.coinbase.com',
                      'private': 'https://api-public.sandbox.pro.coinbase.com',
                  },
                  'logo': 'https://user-images.githubusercontent.com/1294454/41764625-63b7ffde-760a-11e8-996d-a6328fa9347a.jpg',
                  'api': {
                      'public': 'https://api.pro.coinbase.com',
                      'private': 'https://api.pro.coinbase.com',
                  },
                  'www': 'https://pro.coinbase.com/',
                  'doc': 'https://docs.pro.coinbase.com',
                  'fees': [
                      'https://docs.pro.coinbase.com/#fees',
                      'https://support.pro.coinbase.com/customer/en/portal/articles/2945310-fees',
                  ],
              },
              'requiredCredentials': {
                  'apiKey': true,
                  'secret': true,
                  'password': true,
              },
              'api': {
                  'public': {
                      'get': [
                          'currencies',
                          'products',
                          'products/{id}',
                          'products/{id}/book',
                          'products/{id}/candles',
                          'products/{id}/stats',
                          'products/{id}/ticker',
                          'products/{id}/trades',
                          'time',
                      ],
                  },
                  'private': {
                      'get': [
                          'accounts',
                          'accounts/{id}',
                          'accounts/{id}/holds',
                          'accounts/{id}/ledger',
                          'accounts/{id}/transfers',
                          'coinbase-accounts',
                          'fills',
                          'funding',
                          'fees',
                          'margin/profile_information',
                          'margin/buying_power',
                          'margin/withdrawal_power',
                          'margin/withdrawal_power_all',
                          'margin/exit_plan',
                          'margin/liquidation_history',
                          'margin/position_refresh_amounts',
                          'margin/status',
                          'oracle',
                          'orders',
                          'orders/{id}',
                          'orders/client:{client_oid}',
                          'otc/orders',
                          'payment-methods',
                          'position',
                          'profiles',
                          'profiles/{id}',
                          'reports/{report_id}',
                          'transfers',
                          'transfers/{transfer_id}',
                          'users/self/trailing-volume',
                          'users/self/exchange-limits',
                          'withdrawals/fee-estimate',
                      ],
                      'post': [
                          'conversions',
                          'deposits/coinbase-account',
                          'deposits/payment-method',
                          'coinbase-accounts/{id}/addresses',
                          'funding/repay',
                          'orders',
                          'position/close',
                          'profiles/margin-transfer',
                          'profiles/transfer',
                          'reports',
                          'withdrawals/coinbase',
                          'withdrawals/coinbase-account',
                          'withdrawals/crypto',
                          'withdrawals/payment-method',
                      ],
                      'delete': [
                          'orders',
                          'orders/client:{client_oid}',
                          'orders/{id}',
                      ],
                  },
              },
              'commonCurrencies': {
                  'CGLD': 'CELO',
              },
              'precisionMode': TICK_SIZE,
              'fees': {
                  'trading': {
                      'tierBased': true, // complicated tier system per coin
                      'percentage': true,
                      'maker': 0.5 / 100, // highest fee of all tiers
                      'taker': 0.5 / 100, // highest fee of all tiers
                  },
                  'funding': {
                      'tierBased': false,
                      'percentage': false,
                      'withdraw': {
                          'BCH': 0,
                          'BTC': 0,
                          'LTC': 0,
                          'ETH': 0,
                          'EUR': 0.15,
                          'USD': 25,
                      },
                      'deposit': {
                          'BCH': 0,
                          'BTC': 0,
                          'LTC': 0,
                          'ETH': 0,
                          'EUR': 0.15,
                          'USD': 10,
                      },
                  },
              },
              'exceptions': {
                  'exact': {
                      'Insufficient funds': InsufficientFunds,
                      'NotFound': OrderNotFound,
                      'Invalid API Key': AuthenticationError,
                      'invalid signature': AuthenticationError,
                      'Invalid Passphrase': AuthenticationError,
                      'Invalid order id': InvalidOrder,
                      'Private rate limit exceeded': RateLimitExceeded,
                      'Trading pair not available': PermissionDenied,
                      'Product not found': InvalidOrder,
                  },
                  'broad': {
                      'Order already done': OrderNotFound,
                      'order not found': OrderNotFound,
                      'price too small': InvalidOrder,
                      'price too precise': InvalidOrder,
                      'under maintenance': OnMaintenance,
                      'size is too small': InvalidOrder,
                      'Cancel only mode': OnMaintenance, // https://github.com/ccxt/ccxt/issues/7690
                  },
              },
          });
      }
  
      async fetchCurrencies (params = {}) {
          const response = await this.publicGetCurrencies (params);
          //
          //     [
          //         {
          //             id: 'XTZ',
          //             name: 'Tezos',
          //             min_size: '0.000001',
          //             status: 'online',
          //             message: '',
          //             max_precision: '0.000001',
          //             convertible_to: [],
          //             details: {
          //                 type: 'crypto',
          //                 symbol: 'Τ',
          //                 network_confirmations: 60,
          //                 sort_order: 53,
          //                 crypto_address_link: 'https://tzstats.com/{{address}}',
          //                 crypto_transaction_link: 'https://tzstats.com/{{txId}}',
          //                 push_payment_methods: [ 'crypto' ],
          //                 group_types: [],
          //                 display_name: '',
          //                 processing_time_seconds: 0,
          //                 min_withdrawal_amount: 1
          //             }
          //         }
          //     ]
          //
          const result = {};
          for (let i = 0; i < response.length; i++) {
              const currency = response[i];
              const id = this.safeString (currency, 'id');
              const name = this.safeString (currency, 'name');
              const code = this.safeCurrencyCode (id);
              const details = this.safeValue (currency, 'details', {});
              const precision = this.safeFloat (currency, 'max_precision');
              const status = this.safeString (currency, 'status');
              const active = (status === 'online');
              result[code] = {
                  'id': id,
                  'code': code,
                  'info': currency,
                  'type': this.safeString (details, 'type'),
                  'name': name,
                  'active': active,
                  'fee': undefined,
                  'precision': precision,
                  'limits': {
                      'amount': {
                          'min': this.safeFloat (details, 'min_size'),
                          'max': undefined,
                      },
                      'price': {
                          'min': undefined,
                          'max': undefined,
                      },
                      'cost': {
                          'min': undefined,
                          'max': undefined,
                      },
                      'withdraw': {
                          'min': this.safeFloat (details, 'min_withdrawal_amount'),
                          'max': undefined,
                      },
                  },
              };
          }
          return result;
      }
  
      async fetchMarkets (params = {}) {
          const response = await this.publicGetProducts (params);
          //
          //     [
          //         {
          //             "id":"ZEC-BTC",
          //             "base_currency":"ZEC",
          //             "quote_currency":"BTC",
          //             "base_min_size":"0.01000000",
          //             "base_max_size":"1500.00000000",
          //             "quote_increment":"0.00000100",
          //             "base_increment":"0.00010000",
          //             "display_name":"ZEC/BTC",
          //             "min_market_funds":"0.001",
          //             "max_market_funds":"30",
          //             "margin_enabled":false,
          //             "post_only":false,
          //             "limit_only":false,
          //             "cancel_only":false,
          //             "trading_disabled":false,
          //             "status":"online",
          //             "status_message":""
          //         }
          //     ]
          //
          const result = [];
          for (let i = 0; i < response.length; i++) {
              const market = response[i];
              const id = this.safeString (market, 'id');
              const baseId = this.safeString (market, 'base_currency');
              const quoteId = this.safeString (market, 'quote_currency');
              const base = this.safeCurrencyCode (baseId);
              const quote = this.safeCurrencyCode (quoteId);
              const symbol = base + '/' + quote;
              const priceLimits = {
                  'min': this.safeFloat (market, 'quote_increment'),
                  'max': undefined,
              };
              const precision = {
                  'amount': this.safeFloat (market, 'base_increment'),
                  'price': this.safeFloat (market, 'quote_increment'),
              };
              const status = this.safeString (market, 'status');
              const active = (status === 'online');
              result.push (this.extend (this.fees['trading'], {
                  'id': id,
                  'symbol': symbol,
                  'baseId': baseId,
                  'quoteId': quoteId,
                  'base': base,
                  'quote': quote,
                  'precision': precision,
                  'limits': {
                      'amount': {
                          'min': this.safeFloat (market, 'base_min_size'),
                          'max': this.safeFloat (market, 'base_max_size'),
                      },
                      'price': priceLimits,
                      'cost': {
                          'min': this.safeFloat (market, 'min_market_funds'),
                          'max': this.safeFloat (market, 'max_market_funds'),
                      },
                  },
                  'active': active,
                  'info': market,
              }));
          }
          return result;
      }
  
      async fetchAccounts (params = {}) {
          const response = await this.privateGetAccounts (params);
          //
          //     [
          //         {
          //             id: '4aac9c60-cbda-4396-9da4-4aa71e95fba0',
          //             currency: 'BTC',
          //             balance: '0.0000000000000000',
          //             available: '0',
          //             hold: '0.0000000000000000',
          //             profile_id: 'b709263e-f42a-4c7d-949a-a95c83d065da'
          //         },
          //         {
          //             id: 'f75fa69a-1ad1-4a80-bd61-ee7faa6135a3',
          //             currency: 'USDC',
          //             balance: '0.0000000000000000',
          //             available: '0',
          //             hold: '0.0000000000000000',
          //             profile_id: 'b709263e-f42a-4c7d-949a-a95c83d065da'
          //         },
          //     ]
          //
          const result = [];
          for (let i = 0; i < response.length; i++) {
              const account = response[i];
              const accountId = this.safeString (account, 'id');
              const currencyId = this.safeString (account, 'currency');
              const code = this.safeCurrencyCode (currencyId);
              result.push ({
                  'id': accountId,
                  'type': undefined,
                  'currency': code,
                  'info': account,
              });
          }
          return result;
      }
  
      async fetchBalance (params = {}) {
          await this.loadMarkets ();
          const response = await this.privateGetAccounts (params);
          const result = { 'info': response };
          for (let i = 0; i < response.length; i++) {
              const balance = response[i];
              const currencyId = this.safeString (balance, 'currency');
              const code = this.safeCurrencyCode (currencyId);
              const account = {
                  'free': this.safeFloat (balance, 'available'),
                  'used': this.safeFloat (balance, 'hold'),
                  'total': this.safeFloat (balance, 'balance'),
              };
              result[code] = account;
          }
          return this.parseBalance (result);
      }
  
      async fetchOrderBook (symbol, limit = undefined, params = {}) {
          await this.loadMarkets ();
          // level 1 - only the best bid and ask
          // level 2 - top 50 bids and asks (aggregated)
          // level 3 - full order book (non aggregated)
          const request = {
              'id': this.marketId (symbol),
              'level': 2, // 1 best bidask, 2 aggregated, 3 full
          };
          const response = await this.publicGetProductsIdBook (this.extend (request, params));
          //
          //     {
          //         "sequence":1924393896,
          //         "bids":[
          //             ["0.01825","24.34811287",2],
          //             ["0.01824","72.5463",3],
          //             ["0.01823","424.54298049",6],
          //         ],
          //         "asks":[
          //             ["0.01826","171.10414904",4],
          //             ["0.01827","22.60427028",1],
          //             ["0.01828","397.46018784",7],
          //         ]
          //     }
          //
          const orderbook = this.parseOrderBook (response);
          orderbook['nonce'] = this.safeInteger (response, 'sequence');
          return orderbook;
      }
  
      parseTicker (ticker, market = undefined) {
          //
          // publicGetProductsIdTicker
          //
          //     {
          //         "trade_id":843439,
          //         "price":"0.997999",
          //         "size":"80.29769",
          //         "time":"2020-01-28T02:13:33.012523Z",
          //         "bid":"0.997094",
          //         "ask":"0.998",
          //         "volume":"1903188.03750000"
          //     }
          //
          // publicGetProductsIdStats
          //
          //     {
          //         "open": "34.19000000",
          //         "high": "95.70000000",
          //         "low": "7.06000000",
          //         "volume": "2.41000000"
          //     }
          //
          const timestamp = this.parse8601 (this.safeValue (ticker, 'time'));
          const bid = this.safeFloat (ticker, 'bid');
          const ask = this.safeFloat (ticker, 'ask');
          const last = this.safeFloat (ticker, 'price');
          const symbol = (market === undefined) ? undefined : market['symbol'];
          return {
              'symbol': symbol,
              'timestamp': timestamp,
              'datetime': this.iso8601 (timestamp),
              'high': this.safeFloat (ticker, 'high'),
              'low': this.safeFloat (ticker, 'low'),
              'bid': bid,
              'bidVolume': undefined,
              'ask': ask,
              'askVolume': undefined,
              'vwap': undefined,
              'open': this.safeFloat (ticker, 'open'),
              'close': last,
              'last': last,
              'previousClose': undefined,
              'change': undefined,
              'percentage': undefined,
              'average': undefined,
              'baseVolume': this.safeFloat (ticker, 'volume'),
              'quoteVolume': undefined,
              'info': ticker,
          };
      }
  
      async fetchTicker (symbol, params = {}) {
          await this.loadMarkets ();
          const market = this.market (symbol);
          const request = {
              'id': market['id'],
          };
          // publicGetProductsIdTicker or publicGetProductsIdStats
          const method = this.safeString (this.options, 'fetchTickerMethod', 'publicGetProductsIdTicker');
          const response = await this[method] (this.extend (request, params));
          //
          // publicGetProductsIdTicker
          //
          //     {
          //         "trade_id":843439,
          //         "price":"0.997999",
          //         "size":"80.29769",
          //         "time":"2020-01-28T02:13:33.012523Z",
          //         "bid":"0.997094",
          //         "ask":"0.998",
          //         "volume":"1903188.03750000"
          //     }
          //
          // publicGetProductsIdStats
          //
          //     {
          //         "open": "34.19000000",
          //         "high": "95.70000000",
          //         "low": "7.06000000",
          //         "volume": "2.41000000"
          //     }
          //
          return this.parseTicker (response, market);
      }
  
      parseTrade (trade, market = undefined) {
          //
          //     {
          //         type: 'match',
          //         trade_id: 82047307,
          //         maker_order_id: '0f358725-2134-435e-be11-753912a326e0',
          //         taker_order_id: '252b7002-87a3-425c-ac73-f5b9e23f3caf',
          //         side: 'sell',
          //         size: '0.00513192',
          //         price: '9314.78',
          //         product_id: 'BTC-USD',
          //         sequence: 12038915443,
          //         time: '2020-01-31T20:03:41.158814Z'
          //     }
          //
          const timestamp = this.parse8601 (this.safeString2 (trade, 'time', 'created_at'));
          const marketId = this.safeString (trade, 'product_id');
          const symbol = this.safeSymbol (marketId, market, '-');
          let feeRate = undefined;
          let feeCurrency = undefined;
          let takerOrMaker = undefined;
          if (market !== undefined) {
              feeCurrency = market['quote'];
              if ('liquidity' in trade) {
                  takerOrMaker = (trade['liquidity'] === 'T') ? 'taker' : 'maker';
                  feeRate = market[takerOrMaker];
              }
          }
          const feeCost = this.safeFloat2 (trade, 'fill_fees', 'fee');
          const fee = {
              'cost': feeCost,
              'currency': feeCurrency,
              'rate': feeRate,
          };
          const type = undefined;
          const id = this.safeString (trade, 'trade_id');
          let side = (trade['side'] === 'buy') ? 'sell' : 'buy';
          const orderId = this.safeString (trade, 'order_id');
          // Coinbase Pro returns inverted side to fetchMyTrades vs fetchTrades
          if (orderId !== undefined) {
              side = (trade['side'] === 'buy') ? 'buy' : 'sell';
          }
          const price = this.safeFloat (trade, 'price');
          const amount = this.safeFloat (trade, 'size');
          return {
              'id': id,
              'order': orderId,
              'info': trade,
              'timestamp': timestamp,
              'datetime': this.iso8601 (timestamp),
              'symbol': symbol,
              'type': type,
              'takerOrMaker': takerOrMaker,
              'side': side,
              'price': price,
              'amount': amount,
              'fee': fee,
              'cost': price * amount,
          };
      }
  
      async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
          // as of 2018-08-23
          if (symbol === undefined) {
              throw new ArgumentsRequired (this.id + ' fetchMyTrades requires a symbol argument');
          }
          await this.loadMarkets ();
          const market = this.market (symbol);
          const request = {
              'product_id': market['id'],
          };
          if (limit !== undefined) {
              request['limit'] = limit;
          }
          const response = await this.privateGetFills (this.extend (request, params));
          return this.parseTrades (response, market, since, limit);
      }
  
      async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          const market = this.market (symbol);
          const request = {
              'id': market['id'], // fixes issue #2
          };
          if (limit !== undefined) {
              request['limit'] = limit; // default 100
          }
          const response = await this.publicGetProductsIdTrades (this.extend (request, params));
          return this.parseTrades (response, market, since, limit);
      }
  
      parseOHLCV (ohlcv, market = undefined) {
          //
          //     [
          //         1591514160,
          //         0.02507,
          //         0.02507,
          //         0.02507,
          //         0.02507,
          //         0.02816506
          //     ]
          //
          return [
              this.safeTimestamp (ohlcv, 0),
              this.safeFloat (ohlcv, 3),
              this.safeFloat (ohlcv, 2),
              this.safeFloat (ohlcv, 1),
              this.safeFloat (ohlcv, 4),
              this.safeFloat (ohlcv, 5),
          ];
      }
  
      async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          const market = this.market (symbol);
          const granularity = this.timeframes[timeframe];
          const request = {
              'id': market['id'],
              'granularity': granularity,
          };
          if (since !== undefined) {
              request['start'] = this.iso8601 (since);
              if (limit === undefined) {
                  // https://docs.pro.coinbase.com/#get-historic-rates
                  limit = 300; // max = 300
              }
              request['end'] = this.iso8601 (this.sum ((limit - 1) * granularity * 1000, since));
          }
          const response = await this.publicGetProductsIdCandles (this.extend (request, params));
          //
          //     [
          //         [1591514160,0.02507,0.02507,0.02507,0.02507,0.02816506],
          //         [1591514100,0.02507,0.02507,0.02507,0.02507,1.63830323],
          //         [1591514040,0.02505,0.02507,0.02505,0.02507,0.19918178]
          //     ]
          //
          return this.parseOHLCVs (response, market, timeframe, since, limit);
      }
  
      async fetchTime (params = {}) {
          const response = await this.publicGetTime (params);
          //
          //     {
          //         "iso":"2020-05-12T08:00:51.504Z",
          //         "epoch":1589270451.504
          //     }
          //
          return this.safeTimestamp (response, 'epoch');
      }
  
      parseOrderStatus (status) {
          const statuses = {
              'pending': 'open',
              'active': 'open',
              'open': 'open',
              'done': 'closed',
              'canceled': 'canceled',
              'canceling': 'open',
          };
          return this.safeString (statuses, status, status);
      }
  
      parseOrder (order, market = undefined) {
          const timestamp = this.parse8601 (this.safeString (order, 'created_at'));
          const marketId = this.safeString (order, 'product_id');
          market = this.safeMarket (marketId, market, '-');
          const status = this.parseOrderStatus (this.safeString (order, 'status'));
          const price = this.safeFloat (order, 'price');
          const filled = this.safeFloat (order, 'filled_size');
          const amount = this.safeFloat (order, 'size', filled);
          let remaining = undefined;
          if (amount !== undefined) {
              if (filled !== undefined) {
                  remaining = amount - filled;
              }
          }
          const cost = this.safeFloat (order, 'executed_value');
          const feeCost = this.safeFloat (order, 'fill_fees');
          let fee = undefined;
          if (feeCost !== undefined) {
              let feeCurrencyCode = undefined;
              if (market !== undefined) {
                  feeCurrencyCode = market['quote'];
              }
              fee = {
                  'cost': feeCost,
                  'currency': feeCurrencyCode,
                  'rate': undefined,
              };
          }
          const id = this.safeString (order, 'id');
          const type = this.safeString (order, 'type');
          const side = this.safeString (order, 'side');
          return {
              'id': id,
              'clientOrderId': undefined,
              'info': order,
              'timestamp': timestamp,
              'datetime': this.iso8601 (timestamp),
              'lastTradeTimestamp': undefined,
              'status': status,
              'symbol': market['symbol'],
              'type': type,
              'timeInForce': undefined,
              'postOnly': undefined,
              'side': side,
              'price': price,
              'stopPrice': undefined,
              'cost': cost,
              'amount': amount,
              'filled': filled,
              'remaining': remaining,
              'fee': fee,
              'average': undefined,
              'trades': undefined,
          };
      }
  
      async fetchOrder (id, symbol = undefined, params = {}) {
          await this.loadMarkets ();
          const request = {
              'id': id,
          };
          const response = await this.privateGetOrdersId (this.extend (request, params));
          return this.parseOrder (response);
      }
  
      async fetchOrderTrades (id, symbol = undefined, since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          let market = undefined;
          if (symbol !== undefined) {
              market = this.market (symbol);
          }
          const request = {
              'order_id': id,
          };
          const response = await this.privateGetFills (this.extend (request, params));
          return this.parseTrades (response, market, since, limit);
      }
  
      async fetchOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
          const request = {
              'status': 'all',
          };
          return await this.fetchOpenOrders (symbol, since, limit, this.extend (request, params));
      }
  
      async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          const request = {};
          let market = undefined;
          if (symbol !== undefined) {
              market = this.market (symbol);
              request['product_id'] = market['id'];
          }
          if (limit !== undefined) {
              request['limit'] = limit; // default 100
          }
          const response = await this.privateGetOrders (this.extend (request, params));
          return this.parseOrders (response, market, since, limit);
      }
  
      async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
          const request = {
              'status': 'done',
          };
          return await this.fetchOpenOrders (symbol, since, limit, this.extend (request, params));
      }
  
      async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
          await this.loadMarkets ();
          // let oid = this.nonce ().toString ();
          const request = {
              'product_id': this.marketId (symbol),
              'side': side,
              'size': this.amountToPrecision (symbol, amount),
              'type': type,
          };
          if (type === 'limit') {
              request['price'] = this.priceToPrecision (symbol, price);
          }
          const response = await this.privatePostOrders (this.extend (request, params));
          return this.parseOrder (response);
      }
  
      async cancelOrder (id, symbol = undefined, params = {}) {
          await this.loadMarkets ();
          return await this.privateDeleteOrdersId ({ 'id': id });
      }
  
      async cancelAllOrders (symbol = undefined, params = {}) {
          return await this.privateDeleteOrders (params);
      }
  
      calculateFee (symbol, type, side, amount, price, takerOrMaker = 'taker', params = {}) {
          const market = this.markets[symbol];
          const rate = market[takerOrMaker];
          const cost = amount * price;
          const currency = market['quote'];
          return {
              'type': takerOrMaker,
              'currency': currency,
              'rate': rate,
              'cost': parseFloat (this.currencyToPrecision (currency, rate * cost)),
          };
      }
  
      async fetchPaymentMethods (params = {}) {
          return await this.privateGetPaymentMethods (params);
      }
  
      async deposit (code, amount, address, params = {}) {
          await this.loadMarkets ();
          const currency = this.currency (code);
          const request = {
              'currency': currency['id'],
              'amount': amount,
          };
          let method = 'privatePostDeposits';
          if ('payment_method_id' in params) {
              // deposit from a payment_method, like a bank account
              method += 'PaymentMethod';
          } else if ('coinbase_account_id' in params) {
              // deposit into Coinbase Pro account from a Coinbase account
              method += 'CoinbaseAccount';
          } else {
              // deposit methodotherwise we did not receive a supported deposit location
              // relevant docs link for the Googlers
              // https://docs.pro.coinbase.com/#deposits
              throw new NotSupported (this.id + ' deposit() requires one of `coinbase_account_id` or `payment_method_id` extra params');
          }
          const response = await this[method] (this.extend (request, params));
          if (!response) {
              throw new ExchangeError (this.id + ' deposit() error: ' + this.json (response));
          }
          return {
              'info': response,
              'id': response['id'],
          };
      }
  
      async withdraw (code, amount, address, tag = undefined, params = {}) {
          this.checkAddress (address);
          await this.loadMarkets ();
          const currency = this.currency (code);
          const request = {
              'currency': currency['id'],
              'amount': amount,
          };
          let method = 'privatePostWithdrawals';
          if ('payment_method_id' in params) {
              method += 'PaymentMethod';
          } else if ('coinbase_account_id' in params) {
              method += 'CoinbaseAccount';
          } else {
              method += 'Crypto';
              request['crypto_address'] = address;
          }
          const response = await this[method] (this.extend (request, params));
          if (!response) {
              throw new ExchangeError (this.id + ' withdraw() error: ' + this.json (response));
          }
          return {
              'info': response,
              'id': response['id'],
          };
      }
  
      async fetchTransactions (code = undefined, since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          await this.loadAccounts ();
          let currency = undefined;
          let id = this.safeString (params, 'id'); // account id
          if (id === undefined) {
              if (code !== undefined) {
                  currency = this.currency (code);
                  const accountsByCurrencyCode = this.indexBy (this.accounts, 'currency');
                  const account = this.safeValue (accountsByCurrencyCode, code);
                  if (account === undefined) {
                      throw new ExchangeError (this.id + ' fetchTransactions() could not find account id for ' + code);
                  }
                  id = account['id'];
              }
          }
          const request = {};
          if (id !== undefined) {
              request['id'] = id;
          }
          if (limit !== undefined) {
              request['limit'] = limit;
          }
          let response = undefined;
          if (id === undefined) {
              response = await this.privateGetTransfers (this.extend (request, params));
              for (let i = 0; i < response.length; i++) {
                  const account_id = this.safeString (response[i], 'account_id');
                  const account = this.safeValue (this.accountsById, account_id);
                  const code = this.safeString (account, 'currency');
                  response[i]['currency'] = code;
              }
          } else {
              response = await this.privateGetAccountsIdTransfers (this.extend (request, params));
              for (let i = 0; i < response.length; i++) {
                  response[i]['currency'] = code;
              }
          }
          return this.parseTransactions (response, currency, since, limit);
      }
  
      async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
          return this.fetchTransactions (code, since, limit, this.extend (params, { 'type': 'deposit' }));
      }
  
      async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
          return this.fetchTransactions (code, since, limit, this.extend (params, { 'type': 'withdraw' }));
      }
  
      parseTransactionStatus (transaction) {
          const canceled = this.safeValue (transaction, 'canceled_at');
          if (canceled) {
              return 'canceled';
          }
          const processed = this.safeValue (transaction, 'processed_at');
          const completed = this.safeValue (transaction, 'completed_at');
          if (completed) {
              return 'ok';
          } else if (processed && !completed) {
              return 'failed';
          } else {
              return 'pending';
          }
      }
  
      parseTransaction (transaction, currency = undefined) {
          const details = this.safeValue (transaction, 'details', {});
          const id = this.safeString (transaction, 'id');
          const txid = this.safeString (details, 'crypto_transaction_hash');
          const timestamp = this.parse8601 (this.safeString (transaction, 'created_at'));
          const updated = this.parse8601 (this.safeString (transaction, 'processed_at'));
          const currencyId = this.safeString (transaction, 'currency');
          const code = this.safeCurrencyCode (currencyId, currency);
          const status = this.parseTransactionStatus (transaction);
          const amount = this.safeFloat (transaction, 'amount');
          let type = this.safeString (transaction, 'type');
          let address = this.safeString (details, 'crypto_address');
          const tag = this.safeString (details, 'destination_tag');
          address = this.safeString (transaction, 'crypto_address', address);
          let fee = undefined;
          if (type === 'withdraw') {
              type = 'withdrawal';
              address = this.safeString (details, 'sent_to_address', address);
              const feeCost = this.safeFloat (details, 'fee');
              if (feeCost !== undefined) {
                  fee = {
                      'cost': feeCost,
                      'code': code,
                  };
              }
          }
          return {
              'info': transaction,
              'id': id,
              'txid': txid,
              'timestamp': timestamp,
              'datetime': this.iso8601 (timestamp),
              'address': address,
              'tag': tag,
              'type': type,
              'amount': amount,
              'currency': code,
              'status': status,
              'updated': updated,
              'fee': fee,
          };
      }
  
      sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
          let request = '/' + this.implodeParams (path, params);
          const query = this.omit (params, this.extractParams (path));
          if (method === 'GET') {
              if (Object.keys (query).length) {
                  request += '?' + this.urlencode (query);
              }
          }
          const url = this.urls['api'][api] + request;
          if (api === 'private') {
              this.checkRequiredCredentials ();
              const nonce = this.nonce ().toString ();
              let payload = '';
              if (method !== 'GET') {
                  if (Object.keys (query).length) {
                      body = this.json (query);
                      payload = body;
                  }
              }
              const what = nonce + method + request + payload;
              const secret = this.base64ToBinary (this.secret);
              const signature = this.hmac (this.encode (what), secret, 'sha256', 'base64');
              headers = {
                  'CB-ACCESS-KEY': this.apiKey,
                  'CB-ACCESS-SIGN': signature,
                  'CB-ACCESS-TIMESTAMP': nonce,
                  'CB-ACCESS-PASSPHRASE': this.password,
                  'Content-Type': 'application/json',
              };
          }
          return { 'url': url, 'method': method, 'body': body, 'headers': headers };
      }
  
      async createDepositAddress (code, params = {}) {
          await this.loadMarkets ();
          const currency = this.currency (code);
          let accounts = this.safeValue (this.options, 'coinbaseAccounts');
          if (accounts === undefined) {
              accounts = await this.privateGetCoinbaseAccounts ();
              this.options['coinbaseAccounts'] = accounts; // cache it
              this.options['coinbaseAccountsByCurrencyId'] = this.indexBy (accounts, 'currency');
          }
          const currencyId = currency['id'];
          const account = this.safeValue (this.options['coinbaseAccountsByCurrencyId'], currencyId);
          if (account === undefined) {
              // eslint-disable-next-line quotes
              throw new InvalidAddress (this.id + " fetchDepositAddress() could not find currency code " + code + " with id = " + currencyId + " in this.options['coinbaseAccountsByCurrencyId']");
          }
          const request = {
              'id': account['id'],
          };
          const response = await this.privatePostCoinbaseAccountsIdAddresses (this.extend (request, params));
          const address = this.safeString (response, 'address');
          const tag = this.safeString (response, 'destination_tag');
          return {
              'currency': code,
              'address': this.checkAddress (address),
              'tag': tag,
              'info': response,
          };
      }
  
      handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
          if ((code === 400) || (code === 404)) {
              if (body[0] === '{') {
                  const message = this.safeString (response, 'message');
                  const feedback = this.id + ' ' + message;
                  this.throwExactlyMatchedException (this.exceptions['exact'], message, feedback);
                  this.throwBroadlyMatchedException (this.exceptions['broad'], message, feedback);
                  throw new ExchangeError (feedback); // unknown message
              }
              throw new ExchangeError (this.id + ' ' + body);
          }
      }
  
      async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
          const response = await this.fetch2 (path, api, method, params, headers, body);
          if (typeof response !== 'string') {
              if ('message' in response) {
                  throw new ExchangeError (this.id + ' ' + this.json (response));
              }
          }
          return response;
      }
  };
  