Trading API

ThiS API connects with Bitfinex API. It's usefull for getting the bid-ask list, the effective price if a order is executed and the marketdepth based on the orderbook snapshot for a given pair name.

Installation

1. Clone the repository.
2. Run cp .env.example .env.
3. Run npm i.
4. Run npm run start:watch for running in dev mode.
5. The server will be available at localhost:3000.

scripts

1. Run npm run build for generating a prod build.
2. Run npm run eslint for running eslint.
3. Run npm run test for running tests.
4. Run npm run test <test name> for running a specific test.

Endpoints

GET <host>/api/order/:pairName

Example:

curl --location --request GET 'localhost:3000/api/order/tBTCUSD'

Response:

{
    "bids": [
        {
            "price": 1534.7,
            "count": 6,
            "amount": 3.325
        },
        ...
    ],
     "asks": [
        {
             "price": 1535.1,
            "count": 1,
            "amount": -1.6288315
        },
        ...
    ]
}

POST <host>/api/order

Example:

curl --location --request POST 'localhost:3000/api/order' \
--header 'Content-Type: application/json' \
--data-raw '{
    "name": "tETHUSD",
    "operation": "sell",
    "amount": "5",
    "priceLimit": 7000
}'

Payload:

{
    "name": "tETHUSD", // pair name
    "operation": "sell", // type of operation
    "amount": "5", // the desire amount to buy
    "priceLimit": 7000 // the max price you are able to pay
}

Response:

{
    "depth": "0.16%",
    "totalPrice": "6738.50",
    "totalCount": 5
}

Note: if priceLimit is specified then it will return the max price and size you will be able to buy for a given price limit.

Coverage

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