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Trading with the Luno API
1 Jul 2020

Adam Hicks
Tech Lead - Luno
ahicks@luno.com

[[github.com/luno]]
[[github.com/adamhicks]]


* Resources
.link https://www.luno.com/developers

- Getting Started
- API Documentation
- SDKs for Python, Go, PHP

.link https://github.com/adamhicks/luno-example

- Quick Start
- Code examples

* Overview
- What is an API?

- What can I do on the Luno API?

- Getting started

* What is an API?

* What humans see
`https://www.luno.com/trade/markets/XBTGBP`

.image placeorder.png 400 _

* What computers see

*Request*

`HTTP`POST`

`https://api.luno.com/api/1/postorder?pair=XBTGBP&type=ASK&volume=0.01&price=7415.31`

*Response*

`200`OK`

`{"order_id":`"BX933A74BE8"}`

* APIs
A website is how a *human* uses a service, we:
- See images on a screen
- Move a cursor
- Type on a keyboard
- Click buttons

An API is how a *computer* uses a service, it:
- Makes an _request_
- Receives an _response_
- Runs code to figure out what to do next

* What can I do on the Luno API?
- Get market data
e.g. BTC/GBP Best Bid = 7535.41

- Get wallet balances
e.g. £32.42 available, £514.84 reserved

- Place orders
e.g. Sell 0.041 BTC for £9416.52/BTC

- Access trades
e.g. You sold 0.011 BTC for £98.45

- Send and Receive crypto
e.g. Send 0.021 BTC to another exchange

* How do I get started?
- Install Go
`https://golang.org/doc/install`

- Get the SDK
`go`get`github.com/luno/luno-go`

- Create an API key and secret
`https://www.luno.com/wallet/security/api_keys`

- Get Coding...

* Examples in Go

* Getting Balances
.code -edit balances/balances.go /^//START/,/^//END/

`go`run`balances/balances.go`

`BCH`0.02823515`
`XBT`0.09988558`
`ETH`0.3871153`
`EUR`6.050337`
`GBP`7.8712`
`LTC`1.87136022`
`XRP`114.896144`

* Placing an Order
.code -edit placeorder/place.go /^//START/,/^//END/

* Placing an Order
.code -edit cancelorder/cancel.go /^//START/,/^//END/

* Luno API

Enables programs to trade crypto

API key authorises your program to access your Luno account

Check your programs carefully, trades can *not* be reversed