Python Client to interact with the Switcheo Exchange API
Python Client for interacting with the Switcheo API.
This library is intended to empower developers to more easily interact with the Switcheo Decentralized Exchange through simple Python interfaces.
Switcheo is the first functional DEX in the NEO Smart Economy and with the version 2 release of its platform made an API endpoint widely available for developers to build on top of it. This package is a wrapper around the API endpoints and is attempting to replicate and expand on the original functions available.
The official Switcheo documentation can be found at https://docs.switcheo.network/
The Switcheo API uses REST architecture to server data through its endpoints. The requests and responses of the endpoint use JSON format.
While the endpoint returns JSON this package turns the request into a Python dictionary for easier interoperability and function lookup.
There are two type of API endpoints presented in this package:
- Public APIs (Switcheo docs refers to Exchange APIs) - do not require authentication (message signing) that provide access to exchange history, statistics, state, and various other information about the exchange.
- Authenticated APIs (Switcheo docs refers to Trading APIs) - do require authentication and these endpoints include deposits, withdrawals, trading, and cancellation.
Mainnet and Testnet Endpoints
When developing an application it is best to do testing against the Testnet endpoints, these can be found at:
For live market data and trading on the mainnet the following enpoints should be used:
This package is designed to be light weight and is not designed to create or store NEO wallets. If this is required for your application please refer to the neo-python (https://github.com/CityOfZion/neo-python) project for your needs.
- Python 3.5 or greater
Since this project requires Python 3.5 or greater this can be installed via the recommended methods found at https://www.python.org/downloads/
virtualenv Dependency Management
It is also highly recommended to use the virtualenv functionality allowing the developer to isolate dependencies between projects. For more information the following link is worth reading: https://docs.python-guide.org/dev/virtualenvs/
This project also comes with a simple Docker file that can be used to execute the contents of this package inside of. This package was developed inside of the Docker container so if there are any issues during use please report them.
Install with pip
python -m pip install switcheo
Install from PyPi
The easiest way to install switcheo on your machine is to download it and install from PyPi using pip. First, we recommend you to create a virtual environment in order to isolate this installation from your system directories and then install it as you normally would do:
# create project dir mkdir myproject cd myproject # create virtual environment and activate python3.6 -m venv venv # this can also be python3 -m venv venv depending on your environment source venv/bin/activate (venv) pip install switcheo
Install from Git
Clone the repository at https://github.com/KeithSSmith/switcheo-python and navigate into the project directory. Make a Python 3 virtual environment and activate it via
python3.6 -m venv venv source venv/bin/activate
Then install the requirements via
pip install -U setuptools pip wheel pip install -e .
Updating switcheo-python from Git
If you are updating switcheo-python with git pull, make sure you also update the dependencies with pip install -r requirements.txt.
switcheo_pub_client = PublicClient(blockchain=neo)
Exchange API Status
Exchange Time in Epoch Milliseconds
List Smart Contract Hashes
List Trade Pairs
List Orders for Address (ScriptHash)
List Contract Balance for Address (ScriptHash)
switcheo_pub_client.get_candlesticks(pair="SWTH_NEO", start_time=round(time.time()) - 350000, end_time=round(time.time()), interval=360)) switcheo_pub_client.get_last_24_hours() switcheo_pub_client.get_last_price()
Offers on Order Book
Executed Trades for a Given Pair
The Switcheo docs go into extensive detail about how to authenticate messages (https://docs.switcheo.network/#authentication) on the NEO blockchain. These complications have been abstracted to make it easier for the developer to use to allow for quicker development of their project.
This also means it is no longer necessary to run both create and execute portions of the authenticated client tasks since both are handled with the higher level functions listed below.
switcheo_client = AuthenticatedClient(blockchain="neo")
Deposit to Smart Contract
switcheo_client.deposit(asset=product_dict["SWTH"], amount=1, kp=kp)
Withdrawal from Smart Contract
switcheo_client.withdrawal(asset=product_dict["SWTH"], amount=0.001, kp=kp)
Place a Limit Order
switcheo_client.order(kp=kp, pair="SWTH_NEO", side="buy", price=0.0002, amount=100, use_native_token=True, order_type="limit")
Cancel an Open Order
Accepted at Neo address ANwvg4giWPxrZeJtR3ro9TJf4dUHk5wjKe.
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