Go SDK

Objective

This SDK is designed to make it easy for you to use the bloXroute Labs Serum API in Go. You must use Go 1.18 or higher.

Source

Installation

$ go get github.com/bloXroute-Labs/solana-trader-client-go

Usage

This library supports HTTP, websockets, and GRPC interfaces. You must use websockets or GRPC for any streaming methods, but any simple request/response calls are universally supported.

For any methods involving transaction creation you will need to provide your Solana private key. You can provide this via the environment variable PRIVATE_KEY, or specify it via the provider configuration if you want to load it with some other mechanism. See samples for more information. As a general note on this: methods named Post* (e.g. PostOrder) typically do not sign/submit the transaction, only return the raw unsigned transaction. This isn't very useful to most users (unless you want to write a signer in a different language), and you'll typically want the similarly named Submit* methods (e.g. SubmitOrder). These methods generate, sign, and submit the transaction all at once.

You will also need your bloXroute authorization header to use these endpoints. By default, this is loaded from the AUTH_HEADER environment variable.

Request sample:

package main

import (
	"context"
	"fmt"
	"github.com/bloXroute-Labs/solana-trader-client-go/provider"
	pb "github.com/bloXroute-Labs/solana-trader-client-go/proto"
)

func main() {
	// GPRC
	g, err := provider.NewGRPCClient()
	if err != nil {
		panic(err)
	}

	orderbook, err := g.GetOrderbook(context.Background(), "ETH/USDT", 5) // in this case limit to 5 bids and asks. 0 for no limit
	if err != nil {
		panic(err)
	}
	fmt.Println(orderbook)

	// HTTP
	h := provider.NewHTTPClient()
	tickers, err := h.GetTickers("ETHUSDT")
	if err != nil {
		panic(err)
	}
	fmt.Println(tickers)
	
	// WS
	w, err := provider.NewWSClient()
	if err != nil {
		panic(err)
	}
	// note that open orders is a slow function call
	openOrders, err := w.GetOpenOrders(context.Background(), "ETH/USDT", "4raJjCwLLqw8TciQXYruDEF4YhDkGwoEnwnAdwJSjcgv", "")
	if err != nil {
		panic(err)
	}
	fmt.Println(openOrders)
}

Stream (only in GRPC/WS):

package main

import (
	"fmt"
	"github.com/bloXroute-Labs/solana-trader-client-go/provider"
	pb "github.com/bloXroute-Labs/solana-trader-client-go/proto"
	"context"
)

func main() {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	g, err := provider.NewGRPCClient() // replace this with `NewWSClient()` to use WebSockets
	if err != nil {
		panic(err)
	}

	stream, err := g.GetOrderbookStream(ctx, []string{"SOL/USDT"}, 5)
	if err != nil {
		panic(err)
	}
	
	// wrap result in channel for easy of use
	orderbookCh := make(chan *pb.GetOrderbooksStreamResponse)
	stream.Into(orderbookCh)
	for i := 0; i < 3; i++ {
		orderbook := <-orderbookCh
		fmt.Println(orderbook)
	}
}

More code samples are provided in the examples/ directory.

A quick note on market names: You can use a couple of different formats, with restrictions:

1. A/B (only for GRPC/WS clients) --> ETH/USDT

2. A:B --> ETH:USDT

3. A-B --> ETH-USDT

4. AB --> ETHUSDT