This is an automated market maker (AMM) for the PSF DEX. Operators can specify the tokens they want to sell, the quantities they want to sell, and the prices they want to sell at, in a JSON file. This app then reads that JSON file and maintains inventory on the DEX.
This AMM app will only work if the DEX Seller Software is fully operational. It uses the REST API to instruct the DEX software to create and delete orders.
This app is currently under active development. For developers who want to follow progress or contribute, start by reading the Developer Documentation
This software assumes it will be run on an Ubuntu Linux operating system, using Docker and Docker Compose.
- node v16
- npm v9
- Docker v20.10.8
- Docker Compose v1.27.4
- Setup the DEX Seller software. See this documentation for directions.
- Create an
order.jsonfile in the root folder of this repository (see below). - Navigate to the
production/dockerdirectory. - Pull down the docker image with
docker-compose pull - Start the docker container with
docker-compose up -d
Here is an example of an orders.json file that instructs the AMM to maintain orders for a single token in the following quantities: 0.1, 1, and 2 tokens. The price for the token is set to $0.01 USD. If the price deviates by more than 5%, the AMM will delete the existing Order and recreate a new Order at the current price.
[
{
"tokenId": "a4fb5c2da1aa064e25018a43f9165040071d9e984ba190c222a7f59053af84b2",
"qty": 0.1,
"pricePerToken": 0.01,
"errorPercent": 0.02,
"markup": 0.00,
"priceAlgo": false
},
{
"tokenId": "a4fb5c2da1aa064e25018a43f9165040071d9e984ba190c222a7f59053af84b2",
"qty": 1,
"pricePerToken": 0.01,
"errorPercent": 0.02,
"markup": 0.00,
"priceAlgo": false
},
{
"tokenId": "a4fb5c2da1aa064e25018a43f9165040071d9e984ba190c222a7f59053af84b2",
"qty": 2,
"pricePerToken": 0.01,
"errorPercent": 0.02,
"markup": 0.00,
"priceAlgo": false
}
]