ccxt-csharp

A comprehensive guide to using CCXT in C# and .NET projects for cryptocurrency exchange integration.

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Install skill "ccxt-csharp" with this command: npx skills add ccxt/ccxt/ccxt-ccxt-ccxt-csharp

CCXT for C#

A comprehensive guide to using CCXT in C# and .NET projects for cryptocurrency exchange integration.

Installation

Via NuGet Package Manager

dotnet add package CCXT.NET

Or via Visual Studio:

  • Right-click project → Manage NuGet Packages

  • Search for "CCXT.NET"

  • Click Install

Requirements

  • .NET Standard 2.0 or higher

  • .NET Core 2.0+ / .NET 5+ / .NET Framework 4.6.1+

Quick Start

REST API

using ccxt;

var exchange = new Binance(); await exchange.LoadMarkets(); var ticker = await exchange.FetchTicker("BTC/USDT"); Console.WriteLine(ticker);

WebSocket API - Real-time Updates

using ccxt.pro;

var exchange = new Binance(); while (true) { var ticker = await exchange.WatchTicker("BTC/USDT"); Console.WriteLine(ticker.Last); // Live updates! } await exchange.Close();

REST vs WebSocket

Feature REST API WebSocket API

Use for One-time queries, placing orders Real-time monitoring, live price feeds

Import using ccxt;

using ccxt.pro;

Methods Fetch* (FetchTicker, FetchOrderBook) Watch* (WatchTicker, WatchOrderBook)

Speed Slower (HTTP request/response) Faster (persistent connection)

Rate limits Strict (1-2 req/sec) More lenient (continuous stream)

Best for Trading, account management Price monitoring, arbitrage detection

Method naming: C# uses PascalCase - FetchTicker not fetchTicker , WatchTicker not watchTicker

Creating Exchange Instance

REST API

using ccxt;

// Public API (no authentication) var exchange = new Binance { EnableRateLimit = true // Recommended! };

// Private API (with authentication) var exchange = new Binance { ApiKey = "YOUR_API_KEY", Secret = "YOUR_SECRET", EnableRateLimit = true };

WebSocket API

using ccxt.pro;

// Public WebSocket var exchange = new Binance();

// Private WebSocket (with authentication) var exchange = new Binance { ApiKey = "YOUR_API_KEY", Secret = "YOUR_SECRET" };

// Always close when done await exchange.Close();

Common REST Operations

Loading Markets

// Load all available trading pairs await exchange.LoadMarkets();

// Access market information var btcMarket = exchange.Market("BTC/USDT"); Console.WriteLine(btcMarket.Limits.Amount.Min); // Minimum order amount

Fetching Ticker

// Single ticker var ticker = await exchange.FetchTicker("BTC/USDT"); Console.WriteLine(ticker.Last); // Last price Console.WriteLine(ticker.Bid); // Best bid Console.WriteLine(ticker.Ask); // Best ask Console.WriteLine(ticker.Volume); // 24h volume

// Multiple tickers (if supported) var tickers = await exchange.FetchTickers(new[] { "BTC/USDT", "ETH/USDT" });

Fetching Order Book

// Full orderbook var orderbook = await exchange.FetchOrderBook("BTC/USDT"); Console.WriteLine(orderbook.Bids[0]); // [price, amount] Console.WriteLine(orderbook.Asks[0]); // [price, amount]

// Limited depth var orderbook = await exchange.FetchOrderBook("BTC/USDT", 5); // Top 5 levels

Creating Orders

Limit Order

// Buy limit order var order = await exchange.CreateLimitBuyOrder("BTC/USDT", 0.01, 50000); Console.WriteLine(order.Id);

// Sell limit order var order = await exchange.CreateLimitSellOrder("BTC/USDT", 0.01, 60000);

// Generic limit order var order = await exchange.CreateOrder("BTC/USDT", "limit", "buy", 0.01, 50000);

Market Order

// Buy market order var order = await exchange.CreateMarketBuyOrder("BTC/USDT", 0.01);

// Sell market order var order = await exchange.CreateMarketSellOrder("BTC/USDT", 0.01);

// Generic market order var order = await exchange.CreateOrder("BTC/USDT", "market", "sell", 0.01);

Fetching Balance

var balance = await exchange.FetchBalance(); Console.WriteLine(balance["BTC"].Free); // Available balance Console.WriteLine(balance["BTC"].Used); // Balance in orders Console.WriteLine(balance["BTC"].Total); // Total balance

Fetching Orders

// Open orders var openOrders = await exchange.FetchOpenOrders("BTC/USDT");

// Closed orders var closedOrders = await exchange.FetchClosedOrders("BTC/USDT");

// All orders (open + closed) var allOrders = await exchange.FetchOrders("BTC/USDT");

// Single order by ID var order = await exchange.FetchOrder(orderId, "BTC/USDT");

Fetching Trades

// Recent public trades var trades = await exchange.FetchTrades("BTC/USDT", limit: 10);

// Your trades (requires authentication) var myTrades = await exchange.FetchMyTrades("BTC/USDT");

Canceling Orders

// Cancel single order await exchange.CancelOrder(orderId, "BTC/USDT");

// Cancel all orders for a symbol await exchange.CancelAllOrders("BTC/USDT");

WebSocket Operations (Real-time)

Watching Ticker (Live Price Updates)

using ccxt.pro;

var exchange = new Binance(); while (true) { var ticker = await exchange.WatchTicker("BTC/USDT"); Console.WriteLine($"Last: {ticker.Last}"); } await exchange.Close();

Watching Order Book (Live Depth Updates)

var exchange = new Binance(); while (true) { var orderbook = await exchange.WatchOrderBook("BTC/USDT"); Console.WriteLine($"Best bid: {orderbook.Bids[0][0]}"); Console.WriteLine($"Best ask: {orderbook.Asks[0][0]}"); } await exchange.Close();

Watching Trades (Live Trade Stream)

var exchange = new Binance(); while (true) { var trades = await exchange.WatchTrades("BTC/USDT"); foreach (var trade in trades) { Console.WriteLine($"{trade.Price} {trade.Amount} {trade.Side}"); } } await exchange.Close();

Watching Your Orders (Live Order Updates)

var exchange = new Binance { ApiKey = "YOUR_API_KEY", Secret = "YOUR_SECRET" };

while (true) { var orders = await exchange.WatchOrders("BTC/USDT"); foreach (var order in orders) { Console.WriteLine($"{order.Id} {order.Status} {order.Filled}"); } } await exchange.Close();

Watching Balance (Live Balance Updates)

var exchange = new Binance { ApiKey = "YOUR_API_KEY", Secret = "YOUR_SECRET" };

while (true) { var balance = await exchange.WatchBalance(); Console.WriteLine($"BTC: {balance["BTC"].Total}"); } await exchange.Close();

Watching Multiple Symbols

var exchange = new Binance(); var symbols = new[] { "BTC/USDT", "ETH/USDT", "SOL/USDT" };

while (true) { var tickers = await exchange.WatchTickers(symbols); foreach (var kvp in tickers) { Console.WriteLine($"{kvp.Key}: {kvp.Value.Last}"); } } await exchange.Close();

Complete Method Reference

Market Data Methods

Tickers & Prices

  • fetchTicker(symbol)

  • Fetch ticker for one symbol

  • fetchTickers([symbols])

  • Fetch multiple tickers at once

  • fetchBidsAsks([symbols])

  • Fetch best bid/ask for multiple symbols

  • fetchLastPrices([symbols])

  • Fetch last prices

  • fetchMarkPrices([symbols])

  • Fetch mark prices (derivatives)

Order Books

  • fetchOrderBook(symbol, limit)

  • Fetch order book

  • fetchOrderBooks([symbols])

  • Fetch multiple order books

  • fetchL2OrderBook(symbol)

  • Fetch level 2 order book

  • fetchL3OrderBook(symbol)

  • Fetch level 3 order book (if supported)

Trades

  • fetchTrades(symbol, since, limit)

  • Fetch public trades

  • fetchMyTrades(symbol, since, limit)

  • Fetch your trades (auth required)

  • fetchOrderTrades(orderId, symbol)

  • Fetch trades for specific order

OHLCV (Candlesticks)

  • fetchOHLCV(symbol, timeframe, since, limit)

  • Fetch candlestick data

  • fetchIndexOHLCV(symbol, timeframe)

  • Fetch index price OHLCV

  • fetchMarkOHLCV(symbol, timeframe)

  • Fetch mark price OHLCV

  • fetchPremiumIndexOHLCV(symbol, timeframe)

  • Fetch premium index OHLCV

Account & Balance

  • fetchBalance()

  • Fetch account balance (auth required)

  • fetchAccounts()

  • Fetch sub-accounts

  • fetchLedger(code, since, limit)

  • Fetch ledger history

  • fetchLedgerEntry(id, code)

  • Fetch specific ledger entry

  • fetchTransactions(code, since, limit)

  • Fetch transactions

  • fetchDeposits(code, since, limit)

  • Fetch deposit history

  • fetchWithdrawals(code, since, limit)

  • Fetch withdrawal history

  • fetchDepositsWithdrawals(code, since, limit)

  • Fetch both deposits and withdrawals

Trading Methods

Creating Orders

  • createOrder(symbol, type, side, amount, price, params)

  • Create order (generic)

  • createLimitOrder(symbol, side, amount, price)

  • Create limit order

  • createMarketOrder(symbol, side, amount)

  • Create market order

  • createLimitBuyOrder(symbol, amount, price)

  • Buy limit order

  • createLimitSellOrder(symbol, amount, price)

  • Sell limit order

  • createMarketBuyOrder(symbol, amount)

  • Buy market order

  • createMarketSellOrder(symbol, amount)

  • Sell market order

  • createMarketBuyOrderWithCost(symbol, cost)

  • Buy with specific cost

  • createStopLimitOrder(symbol, side, amount, price, stopPrice)

  • Stop-limit order

  • createStopMarketOrder(symbol, side, amount, stopPrice)

  • Stop-market order

  • createStopLossOrder(symbol, side, amount, stopPrice)

  • Stop-loss order

  • createTakeProfitOrder(symbol, side, amount, takeProfitPrice)

  • Take-profit order

  • createTrailingAmountOrder(symbol, side, amount, trailingAmount)

  • Trailing stop

  • createTrailingPercentOrder(symbol, side, amount, trailingPercent)

  • Trailing stop %

  • createTriggerOrder(symbol, side, amount, triggerPrice)

  • Trigger order

  • createPostOnlyOrder(symbol, side, amount, price)

  • Post-only order

  • createReduceOnlyOrder(symbol, side, amount, price)

  • Reduce-only order

  • createOrders([orders])

  • Create multiple orders at once

  • createOrderWithTakeProfitAndStopLoss(symbol, type, side, amount, price, tpPrice, slPrice)

  • OCO order

Managing Orders

  • fetchOrder(orderId, symbol)

  • Fetch single order

  • fetchOrders(symbol, since, limit)

  • Fetch all orders

  • fetchOpenOrders(symbol, since, limit)

  • Fetch open orders

  • fetchClosedOrders(symbol, since, limit)

  • Fetch closed orders

  • fetchCanceledOrders(symbol, since, limit)

  • Fetch canceled orders

  • fetchOpenOrder(orderId, symbol)

  • Fetch specific open order

  • fetchOrdersByStatus(status, symbol)

  • Fetch orders by status

  • cancelOrder(orderId, symbol)

  • Cancel single order

  • cancelOrders([orderIds], symbol)

  • Cancel multiple orders

  • cancelAllOrders(symbol)

  • Cancel all orders for symbol

  • editOrder(orderId, symbol, type, side, amount, price)

  • Modify order

Margin & Leverage

  • fetchBorrowRate(code)

  • Fetch borrow rate for margin

  • fetchBorrowRates([codes])

  • Fetch multiple borrow rates

  • fetchBorrowRateHistory(code, since, limit)

  • Historical borrow rates

  • fetchCrossBorrowRate(code)

  • Cross margin borrow rate

  • fetchIsolatedBorrowRate(symbol, code)

  • Isolated margin borrow rate

  • borrowMargin(code, amount, symbol)

  • Borrow margin

  • repayMargin(code, amount, symbol)

  • Repay margin

  • fetchLeverage(symbol)

  • Fetch leverage

  • setLeverage(leverage, symbol)

  • Set leverage

  • fetchLeverageTiers(symbols)

  • Fetch leverage tiers

  • fetchMarketLeverageTiers(symbol)

  • Leverage tiers for market

  • setMarginMode(marginMode, symbol)

  • Set margin mode (cross/isolated)

  • fetchMarginMode(symbol)

  • Fetch margin mode

Derivatives & Futures

Positions

  • fetchPosition(symbol)

  • Fetch single position

  • fetchPositions([symbols])

  • Fetch all positions

  • fetchPositionsForSymbol(symbol)

  • Fetch positions for symbol

  • fetchPositionHistory(symbol, since, limit)

  • Position history

  • fetchPositionsHistory(symbols, since, limit)

  • Multiple position history

  • fetchPositionMode(symbol)

  • Fetch position mode (one-way/hedge)

  • setPositionMode(hedged, symbol)

  • Set position mode

  • closePosition(symbol, side)

  • Close position

  • closeAllPositions()

  • Close all positions

Funding & Settlement

  • fetchFundingRate(symbol)

  • Current funding rate

  • fetchFundingRates([symbols])

  • Multiple funding rates

  • fetchFundingRateHistory(symbol, since, limit)

  • Funding rate history

  • fetchFundingHistory(symbol, since, limit)

  • Your funding payments

  • fetchFundingInterval(symbol)

  • Funding interval

  • fetchSettlementHistory(symbol, since, limit)

  • Settlement history

  • fetchMySettlementHistory(symbol, since, limit)

  • Your settlement history

Open Interest & Liquidations

  • fetchOpenInterest(symbol)

  • Open interest for symbol

  • fetchOpenInterests([symbols])

  • Multiple open interests

  • fetchOpenInterestHistory(symbol, timeframe, since, limit)

  • OI history

  • fetchLiquidations(symbol, since, limit)

  • Public liquidations

  • fetchMyLiquidations(symbol, since, limit)

  • Your liquidations

Options

  • fetchOption(symbol)

  • Fetch option info

  • fetchOptionChain(code)

  • Fetch option chain

  • fetchGreeks(symbol)

  • Fetch option greeks

  • fetchVolatilityHistory(code, since, limit)

  • Volatility history

  • fetchUnderlyingAssets()

  • Fetch underlying assets

Fees & Limits

  • fetchTradingFee(symbol)

  • Trading fee for symbol

  • fetchTradingFees([symbols])

  • Trading fees for multiple symbols

  • fetchTradingLimits([symbols])

  • Trading limits

  • fetchTransactionFee(code)

  • Transaction/withdrawal fee

  • fetchTransactionFees([codes])

  • Multiple transaction fees

  • fetchDepositWithdrawFee(code)

  • Deposit/withdrawal fee

  • fetchDepositWithdrawFees([codes])

  • Multiple deposit/withdraw fees

Deposits & Withdrawals

  • fetchDepositAddress(code, params)

  • Get deposit address

  • fetchDepositAddresses([codes])

  • Multiple deposit addresses

  • fetchDepositAddressesByNetwork(code)

  • Addresses by network

  • createDepositAddress(code, params)

  • Create new deposit address

  • fetchDeposit(id, code)

  • Fetch single deposit

  • fetchWithdrawal(id, code)

  • Fetch single withdrawal

  • fetchWithdrawAddresses(code)

  • Fetch withdrawal addresses

  • fetchWithdrawalWhitelist(code)

  • Fetch whitelist

  • withdraw(code, amount, address, tag, params)

  • Withdraw funds

  • deposit(code, amount, params)

  • Deposit funds (if supported)

Transfer & Convert

  • transfer(code, amount, fromAccount, toAccount)

  • Internal transfer

  • fetchTransfer(id, code)

  • Fetch transfer info

  • fetchTransfers(code, since, limit)

  • Fetch transfer history

  • fetchConvertCurrencies()

  • Currencies available for convert

  • fetchConvertQuote(fromCode, toCode, amount)

  • Get conversion quote

  • createConvertTrade(fromCode, toCode, amount)

  • Execute conversion

  • fetchConvertTrade(id)

  • Fetch convert trade

  • fetchConvertTradeHistory(code, since, limit)

  • Convert history

Market Info

  • fetchMarkets()

  • Fetch all markets

  • fetchCurrencies()

  • Fetch all currencies

  • fetchTime()

  • Fetch exchange server time

  • fetchStatus()

  • Fetch exchange status

  • fetchBorrowInterest(code, symbol, since, limit)

  • Borrow interest paid

  • fetchLongShortRatio(symbol, timeframe, since, limit)

  • Long/short ratio

  • fetchLongShortRatioHistory(symbol, timeframe, since, limit)

  • L/S ratio history

WebSocket Methods (ccxt.pro)

All REST methods have WebSocket equivalents with watch* prefix:

Real-time Market Data

  • watchTicker(symbol)

  • Watch single ticker

  • watchTickers([symbols])

  • Watch multiple tickers

  • watchOrderBook(symbol)

  • Watch order book updates

  • watchOrderBookForSymbols([symbols])

  • Watch multiple order books

  • watchTrades(symbol)

  • Watch public trades

  • watchOHLCV(symbol, timeframe)

  • Watch candlestick updates

  • watchBidsAsks([symbols])

  • Watch best bid/ask

Real-time Account Data (Auth Required)

  • watchBalance()

  • Watch balance updates

  • watchOrders(symbol)

  • Watch your order updates

  • watchMyTrades(symbol)

  • Watch your trade updates

  • watchPositions([symbols])

  • Watch position updates

  • watchPositionsForSymbol(symbol)

  • Watch positions for symbol

Authentication Required

Methods marked with 🔒 require API credentials:

  • All create* methods (creating orders, addresses)

  • All cancel* methods (canceling orders)

  • All edit* methods (modifying orders)

  • All fetchMy* methods (your trades, orders)

  • fetchBalance , fetchLedger , fetchAccounts

  • withdraw , transfer , deposit

  • Margin/leverage methods

  • Position methods

  • watchBalance , watchOrders , watchMyTrades , watchPositions

Checking Method Availability

Not all exchanges support all methods. Check before using:

// Check if method is supported if (exchange.has['fetchOHLCV']) { const candles = await exchange.fetchOHLCV('BTC/USDT', '1h') }

// Check multiple capabilities console.log(exchange.has) // { // fetchTicker: true, // fetchOHLCV: true, // fetchMyTrades: true, // fetchPositions: false, // ... // }

Method Naming Convention

  • fetch*

  • REST API methods (HTTP requests)

  • watch*

  • WebSocket methods (real-time streams)

  • create*

  • Create new resources (orders, addresses)

  • cancel*

  • Cancel existing resources

  • edit*

  • Modify existing resources

  • set*

  • Configure settings (leverage, margin mode)

  • *Ws suffix - WebSocket variant (some exchanges)

Proxy Configuration

CCXT supports HTTP, HTTPS, and SOCKS proxies for both REST and WebSocket connections.

Setting Proxy

// HTTP Proxy exchange.httpProxy = 'http://your-proxy-host:port'

// HTTPS Proxy
exchange.httpsProxy = 'https://your-proxy-host:port'

// SOCKS Proxy exchange.socksProxy = 'socks://your-proxy-host:port'

// Proxy with authentication exchange.httpProxy = 'http://user:pass@proxy-host:port'

Proxy for WebSocket

WebSocket connections also respect proxy settings:

exchange.httpsProxy = 'https://proxy:8080' // WebSocket connections will use this proxy

Testing Proxy Connection

exchange.httpProxy = 'http://localhost:8080' try { await exchange.fetchTicker('BTC/USDT') console.log('Proxy working!') } catch (error) { console.error('Proxy connection failed:', error) }

WebSocket-Specific Methods

Some exchanges provide WebSocket variants of REST methods for faster order placement and management. These use the *Ws suffix:

Trading via WebSocket

Creating Orders:

  • createOrderWs

  • Create order via WebSocket (faster than REST)

  • createLimitOrderWs

  • Create limit order via WebSocket

  • createMarketOrderWs

  • Create market order via WebSocket

  • createLimitBuyOrderWs

  • Buy limit order via WebSocket

  • createLimitSellOrderWs

  • Sell limit order via WebSocket

  • createMarketBuyOrderWs

  • Buy market order via WebSocket

  • createMarketSellOrderWs

  • Sell market order via WebSocket

  • createStopLimitOrderWs

  • Stop-limit order via WebSocket

  • createStopMarketOrderWs

  • Stop-market order via WebSocket

  • createStopLossOrderWs

  • Stop-loss order via WebSocket

  • createTakeProfitOrderWs

  • Take-profit order via WebSocket

  • createTrailingAmountOrderWs

  • Trailing stop via WebSocket

  • createTrailingPercentOrderWs

  • Trailing stop % via WebSocket

  • createPostOnlyOrderWs

  • Post-only order via WebSocket

  • createReduceOnlyOrderWs

  • Reduce-only order via WebSocket

Managing Orders:

  • editOrderWs

  • Edit order via WebSocket

  • cancelOrderWs

  • Cancel order via WebSocket (faster than REST)

  • cancelOrdersWs

  • Cancel multiple orders via WebSocket

  • cancelAllOrdersWs

  • Cancel all orders via WebSocket

Fetching Data:

  • fetchOrderWs

  • Fetch order via WebSocket

  • fetchOrdersWs

  • Fetch orders via WebSocket

  • fetchOpenOrdersWs

  • Fetch open orders via WebSocket

  • fetchClosedOrdersWs

  • Fetch closed orders via WebSocket

  • fetchMyTradesWs

  • Fetch your trades via WebSocket

  • fetchBalanceWs

  • Fetch balance via WebSocket

  • fetchPositionWs

  • Fetch position via WebSocket

  • fetchPositionsWs

  • Fetch positions via WebSocket

  • fetchPositionsForSymbolWs

  • Fetch positions for symbol via WebSocket

  • fetchTradingFeesWs

  • Fetch trading fees via WebSocket

When to Use WebSocket Methods

Use *Ws methods when:

  • You need faster order placement (lower latency)

  • You're already connected via WebSocket

  • You want to reduce REST API rate limit usage

  • Trading strategies require sub-100ms latency

Use REST methods when:

  • You need guaranteed execution confirmation

  • You're making one-off requests

  • The exchange doesn't support the WebSocket variant

  • You need detailed error responses

Example: Order Placement Comparison

REST API (slower, more reliable):

const order = await exchange.createOrder('BTC/USDT', 'limit', 'buy', 0.01, 50000)

WebSocket API (faster, lower latency):

const order = await exchange.createOrderWs('BTC/USDT', 'limit', 'buy', 0.01, 50000)

Checking WebSocket Method Availability

Not all exchanges support WebSocket trading methods:

if (exchange.has['createOrderWs']) { // Exchange supports WebSocket order creation const order = await exchange.createOrderWs('BTC/USDT', 'limit', 'buy', 0.01, 50000) } else { // Fall back to REST const order = await exchange.createOrder('BTC/USDT', 'limit', 'buy', 0.01, 50000) }

Authentication

Setting API Keys

using System;

// During instantiation (recommended) var exchange = new Binance { ApiKey = Environment.GetEnvironmentVariable("BINANCE_API_KEY"), Secret = Environment.GetEnvironmentVariable("BINANCE_SECRET"), EnableRateLimit = true };

// After instantiation exchange.ApiKey = Environment.GetEnvironmentVariable("BINANCE_API_KEY"); exchange.Secret = Environment.GetEnvironmentVariable("BINANCE_SECRET");

Testing Authentication

try { var balance = await exchange.FetchBalance(); Console.WriteLine("Authentication successful!"); } catch (AuthenticationError) { Console.WriteLine("Invalid API credentials"); }

Error Handling

Exception Hierarchy

BaseError ├─ NetworkError (recoverable - retry) │ ├─ RequestTimeout │ ├─ ExchangeNotAvailable │ ├─ RateLimitExceeded │ └─ DDoSProtection └─ ExchangeError (non-recoverable - don't retry) ├─ AuthenticationError ├─ InsufficientFunds ├─ InvalidOrder └─ NotSupported

Basic Error Handling

using ccxt;

try { var ticker = await exchange.FetchTicker("BTC/USDT"); } catch (NetworkError ex) { Console.WriteLine($"Network error - retry: {ex.Message}"); } catch (ExchangeError ex) { Console.WriteLine($"Exchange error - do not retry: {ex.Message}"); } catch (Exception ex) { Console.WriteLine($"Unknown error: {ex.Message}"); }

Specific Exception Handling

try { var order = await exchange.CreateOrder("BTC/USDT", "limit", "buy", 0.01, 50000); } catch (InsufficientFunds) { Console.WriteLine("Not enough balance"); } catch (InvalidOrder) { Console.WriteLine("Invalid order parameters"); } catch (RateLimitExceeded) { Console.WriteLine("Rate limit hit - wait before retrying"); await Task.Delay(1000); // Wait 1 second } catch (AuthenticationError) { Console.WriteLine("Check your API credentials"); }

Retry Logic for Network Errors

async Task<Ticker> FetchWithRetry(int maxRetries = 3) { for (int i = 0; i < maxRetries; i++) { try { return await exchange.FetchTicker("BTC/USDT"); } catch (NetworkError) { if (i < maxRetries - 1) { Console.WriteLine($"Retry {i + 1}/{maxRetries}"); await Task.Delay(1000 * (i + 1)); // Exponential backoff } else { throw; } } } return null; }

Rate Limiting

Built-in Rate Limiter (Recommended)

var exchange = new Binance { EnableRateLimit = true // Automatically throttles requests };

Manual Delays

await exchange.FetchTicker("BTC/USDT"); await Task.Delay((int)exchange.RateLimit); // Wait between requests await exchange.FetchTicker("ETH/USDT");

Checking Rate Limit

Console.WriteLine(exchange.RateLimit); // Milliseconds between requests

Common Pitfalls

Wrong Method Casing

// Wrong - lowercase (JavaScript style) var ticker = await exchange.fetchTicker("BTC/USDT"); // ERROR!

// Correct - PascalCase (C# style) var ticker = await exchange.FetchTicker("BTC/USDT");

Not Awaiting Async Methods

// Wrong - missing await var ticker = exchange.FetchTicker("BTC/USDT"); // Returns Task, not Ticker! Console.WriteLine(ticker.Last); // ERROR!

// Correct var ticker = await exchange.FetchTicker("BTC/USDT"); Console.WriteLine(ticker.Last); // Works!

Using REST for Real-time Monitoring

// Wrong - wastes rate limits while (true) { var ticker = await exchange.FetchTicker("BTC/USDT"); // REST Console.WriteLine(ticker.Last); await Task.Delay(1000); }

// Correct - use WebSocket using ccxt.pro; var exchange = new Binance(); while (true) { var ticker = await exchange.WatchTicker("BTC/USDT"); // WebSocket Console.WriteLine(ticker.Last); }

Not Closing WebSocket Connections

// Wrong - memory leak var exchange = new ccxt.pro.Binance(); var ticker = await exchange.WatchTicker("BTC/USDT"); // Forgot to close!

// Correct var exchange = new ccxt.pro.Binance(); try { while (true) { var ticker = await exchange.WatchTicker("BTC/USDT"); Console.WriteLine(ticker.Last); } } finally { await exchange.Close(); }

Incorrect Symbol Format

// Wrong symbol formats "BTCUSDT" // Wrong - no separator "BTC-USDT" // Wrong - dash separator "btc/usdt" // Wrong - lowercase

// Correct symbol format "BTC/USDT" // Unified CCXT format

Troubleshooting

Common Issues

  1. "Package CCXT.NET not found"
  • Solution: Run dotnet add package CCXT.NET
  1. "RateLimitExceeded"
  • Solution: Set EnableRateLimit = true
  1. "AuthenticationError"

  • Solution: Check API key and secret

  • Verify API key permissions on exchange

  • Check system clock is synced

  1. "InvalidNonce"

  • Solution: Sync system clock

  • Use only one exchange instance per API key

  1. "InsufficientFunds"

  • Solution: Check available balance (balance["BTC"].Free )

  • Account for trading fees

  1. "ExchangeNotAvailable"

  • Solution: Check exchange status/maintenance

  • Retry after a delay

Debugging

// Enable verbose logging exchange.Verbose = true;

// Check exchange capabilities Console.WriteLine(exchange.Has); // { // FetchTicker = true, // FetchOrderBook = true, // CreateOrder = true, // ... // }

// Check market information var market = exchange.Markets["BTC/USDT"];

// Check last request/response Console.WriteLine(exchange.LastHttpResponse); Console.WriteLine(exchange.LastJsonResponse);

Learn More

  • CCXT Manual

  • CCXT Pro Documentation

  • Supported Exchanges

  • GitHub Repository

Source Transparency

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Web3

A股-加密货币-定时早报-多维度指标全方位分析-安装即用无复杂配置-自带验证降低幻觉

A股-加密货币-定时早报-多维度指标全方位分析，安装即用，无复杂配置，内置公开数据源，多指标，数据全面，涵盖基本面技术面，新闻市场情绪等，自带验证，降低ai幻觉。双市场（A股 + Crypto）分析技能。凡是用户提到：币/crypto 行情、A股个股/板块、早盘内参/早报、交易策略/入场/止损/目标/胜率/回撤，...

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ccxt-typescript

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