Bitfinex.Net is a .Net wrapper for the Bitfinex API as described on Bitfinex. It includes all features the API provides using clear and readable C# objects including

• Reading market info
• Placing and managing orders
• Reading balances and funds
• Live updates using the websocket

Next to that it adds some convenience features like:

• Configurable rate limiting
• Autmatic logging

If you think something is broken, something is missing or have any questions, please open an Issue

Also check out my other exchange API wrappers:

Binance

Bittrex

Available on NuGet:

PM> Install-Package Bitfinex.Net

To get started with Bitfinex.Net first you will need to get the library itself. The easiest way to do this is to install the package into your project using NuGet. Using Visual Studio this can be done in two ways.

In Visual Studio right click on your solution and select 'Manage NuGet Packages for solution...'. A screen will appear which initially shows the currently installed packages. In the top bit select 'Browse'. This will let you download net package from the NuGet server. In the search box type 'Bitfinex.Net' and hit enter. The Bitfinex.Net package should come up in the results. After selecting the package you can then on the right hand side select in which projects in your solution the package should install. After you've selected all project you wish to install and use Bitfinex.Net in hit 'Install' and the package will be downloaded and added to you projects.

In Visual Studio in the top menu select 'Tools' -> 'NuGet Package Manager' -> 'Package Manager Console'. This should open up a command line interface. On top of the interface there is a dropdown menu where you can select the Default Project. This is the project that Bitfinex.Net will be installed in. After selecting the correct project type Install-Package Bitfinex.Net in the command line interface. This should install the latest version of the package in your project.

After doing either of above steps you should now be ready to actually start using Bitfinex.Net.

After it's time to actually use it. To get started we have to add the Bitfinex.Net namespace: using Bitfinex.Net;.

Bitfinex.Net provides two clients to interact with the Bitfinex API. The BitfinexClient provides all rest API calls. The BitfinexSocketClient provides functions to interact with the websocket provided by the Bitfinex API.

Most API methods are available in two flavors, sync and async:

public void NonAsyncMethod()
{
    using(var client = new BitfinexClient())
    {
        var result = client.GetPlatformStatus();
    }
}

public async Task AsyncMethod()
{
    using(var client = new BitfinexClient())
    {
        var result2 = await client.GetPlatformStatusAsync();
    }
}

All API requests will respond with an CallResult object. This object contains whether the call was successful, the data returned from the call and an error if the call wasn't successful. As such, one should always check the Success flag when processing a response. For example:

using(var client = new BitfinexClient())
{
	var priceResult = client.GetTicker("tBTCETH");
	if (priceResult.Success)
		Console.WriteLine($"BTC-ETH price: {priceResult.Data.Last}");
	else
		Console.WriteLine($"Error: {priceResult.Error}");
}

The default behavior of the clients can be changed by providing options to the constructor, or using the SetDefaultOptions before creating a new client to set options for all new clients. Api credentials can be provided in the options.

To use the websocket the various Subscribe methods can be used. The Start method should be used to actually connect the websocket. When connection to the websocket has been made the server will send various snapshots of data, so make sure your event handlers are set up before starting. The websocket will automatically handle reconnect/pause messages send from the server. To unsubscribe from a stream use the UnsubscribeFromChannel method with the stream id you received when subscribing. To stop the websocket completly the Stop method can be used.

var options = new BitfinexSocketClientOptions()
{
	ApiCredentials = new ApiCredentials("KEY", "SECRET")
};

var client = new BitfinexSocketClient(options);
var walletSub = client.SubscribeToWalletUpdates(data =>
{
	Console.WriteLine("Wallet update");
});
var tickerSub = await client.SubscribeToTicker("tBTCUSD", data =>
{
	Console.WriteLine("Ticker update");
});

var startOk = client.Start();
Console.WriteLine(startOk ? "Connected": "Connection failed");

Console.ReadLine();
await client.UnsubscribeFromChannel(walletSub.Data);
await client.UnsubscribeFromChannel(tickerSub.Data);
client.Stop();

The websocket also supports the placing and canceling of orders:

var options = new BitfinexSocketClientOptions()
{
	ApiCredentials = new ApiCredentials("KEY", "SECRET")
};

var client = new BitfinexSocketClient(options);
var startOk = client.Start();
Console.WriteLine(startOk ? "Connected": "Connection failed");

Console.ReadLine();

var placeResult = client.PlaceOrder(OrderType.ExchangeLimit, "tBTCUSD", 1, price: 1);
Console.WriteLine(placeResult.Success ? "order placed": "failed placing order: " + placeResult.Error);

if (placeResult.Success)
{
	var cancelResult = client.CancelOrder(placeResult.Data.Id);
	Console.WriteLine(cancelResult.Success ? "order canceled" : "failed canceling order: " + cancelResult.Error);
}

Console.ReadLine();

• Version 1.0.8 - 12 may 2018

  • Fix for new order parameter in socket client

• Version 1.0.7 - 12 may 2018

  • Added StopLimitOrder ordertype

• Version 1.0.6 - 08 may 2018

  • Fixed bug with orderstatus parsing

• Version 1.0.5 - 07 may 2018

  • Fix for logging issue

• Version 1.0.4 - 07 may 2018

  • Added optional parameters to place order

• Version 1.0.3 - 04 may 2018

  • Fix for freezing from UI-thread with authenticated requests
  • Fix for position deserialization

• Version 1.0.2 - 20 apr 2018

  • Fix for ticker stream data deserialization

• Version 1.0.1 - 20 apr 2018

  • Fix for OrderStatus parsing
  • Fix for int's being used when should be long
  • Fix swapped parameters in socket order

• Version 1.0.0 - 19 apr 2018

  • Added raw orderbook subscription
  • Fix for GetCandles limit parameter
  • Fix for V1 Api error parsing
  • Fix for nonce for authenticated requests

• Version 0.0.8 - 23 mar 2018

  • Updated socket dispose
  • Updated base

• Version 0.0.7 - 23 mar 2018

  • Added notification message handling resulting in faster error message when failing to place/cancel orders via websocket
  • Fix for unsubsribing exception

• Version 0.0.6 - 22 mar 2018

  • Fix for order status parsing

• Version 0.0.5 - 21 mar 2018

  • Can add multiple log writers
  • Added some code docs

• Version 0.0.4 - 20 mar 2018

  • Fix for precision serialization

• Version 0.0.3 - 12 mar 2018

  • Fixes for freezes when calling from UI thread

• Version 0.0.2 - 09 mar 2018

  • Auto reconnecting socket client
  • Info messages send from server processing
  • Socket client status events added

• Version 0.0.1 - 08 mar 2018

  • Initial release