Pintu Golang API Websocket Sample

This sample code shows how the Pintu websocket API can be used to build a simple http server that, upon triggering it's order endpoint, sends the market order to Pintu's backend and monitors for order execution status.

The sample consists of the following modules:

1. client - implementation of the API communication protocol (primitives and messages, autentication, etc.)
2. order - implementation of the order send and order status receive loop handlers on client side
3. endpoint - http web-service implementing the 'order' endpoint
4. cmd - the application runner (main function)

General Order Overview

In order to receive updates from Pintu server, the client application has to:

1. Subscribe to ExecutionReport channel with StartDate parameter. The StartDate could be omitted in case of the very first API connection of the client (it will use time.Now() at the backend), or it could be the Timestamp field value ofthe of the last ExecutionReport message processed from previous connection.
2. Subscribe to Trade channel. In case the StartDate field is set, the backend will return all the Trade's happened between the date specified and server's time.Now() value.

To send the order to Pintu's backend the following action should be performed:

1. First generate a new ClOrdID. The value can use any pattern to be generated. This sample is using the uuid.New().String() call
2. Create and send the NewOrderSingle message specifying the params (ClOrdID, Side, Price, OrderQty, Strategy, etc).

To send the order cancellation request to Pintu's backend the following actions should be performed:

1. First generate a new ClOrdID for the cancellation
2. Create and send then OrderCancelRequest specifying the newly generated ClOrdID and OrigClOrdID, which is the ClOrdId of the original order created via the NewOrderSingle message

Please see the endpoint package for the implementation of the order creation flow

Please refer to the Pintu API documentation for the messages and their required fields format

Installing

Go 1.19 is required for modules support. To install, checkout from source, then build or run directly.

    $ go build ./...

Running

Replace the following variables:

• ws-address: pintu websocket address
• api-key: your API Key
• api-secret: your API Secret

Start the server:

    $ go run cmd/main.go --addr <ws-address> --apikey <api-key> --apisecret <api-secret>

For example:

    $ go run cmd/main.go --addr wss://partner.sandbox.pintu.co.id/ws/v1 --apikey ABCD1234ZXCV --apisecret oin201niasf1920ejalsdknasdnaliw1

To request a order of 210 DOGE to USDT, run the following curl command from another window:

    $ curl localhost:8085/order?symbol=DOGE-USDT&currency=DOGE&side=Buy&quantity=210

If successful, you should see a response like:

filled(1 @ 9835)

Endpoint parameters:

• symbol: a currency pair, like DOGE-USDT.
• currency : the currency that the quantity is specified in. If not specified, defaults to the base currency for the symbol.
• side: Buy or Sell.
• quantity: an quantity of base currency to buy or sell.

Common Issues

• If you got a response rejected(Order rejected), one of the reasons is the order quantity is less than the minimum size.