sportx-js

Be your own bookmaker and fill orders programmatically with the SX Bet API!

Questions? Join our chat

Install

yarn add @sx-bet/sportx-js

or

npm i @sx-bet/sportx-js

This library is compiled down to es6 and works in node and the browser.

Usage

You can do the following things with this API:

1. Get all the active markets
2. Get all the sports supported by SportX
3. Get all the leagues supported by SportX
4. Submit a new order to a market
5. Cancel an existing order
6. Get all orders on market(s)
7. Fill order(s)
8. Get all active orders for an account
9. Get pending or failed bets for a user
10. Get past trades (graded/settled and ungraded/unsettled)
11. Approve SportX contracts trading
12. Subscribe to market changes
13. Subscribe to live scores by game
14. Subscribe to order book changes by market
15. Subscribe to active orders
16. Lookup markets

We support betting in WSX, WETH, and USDC

In any case, to get started, you can either initialize via your ethereum private key or initialize via an existing web3 instance. Examples below assuming you are using environment variables to store sensitive information.

Initializing via ethereum private key

For this you will need a URL of an Ethereum provider to connect to the network along with your Ethereum private key. For the provider url you can connect to https://rpc.sx.technology for SxStage & SxMainnet environment. For toronto, use this provider url https://rpc.sx.technology instead. This will get you connected to the SX chain. Make sure you pass in the correct urls for with the righ environments.

import { Environments, newSportX } from "@sx-bet/sportx-js";

async function main() {
  const sportX = await newSportX({
    env: Environments.SxToronto,
    customSidechainProviderUrl: process.env.PROVIDER,
    privateKey: process.env.PRIVATE_KEY,
  });
  // or 

  const sportXToronto = await newSportX({
    env: Environments.SxToronto,
    customSidechainProviderUrl: process.env.PROVIDER,
    privateKey: process.env.PRIVATE_KEY,
})

}

Note that you do not need a SportX API key to get started.

Initializing via an existing web3 instance.

import { Environments, newSportX } from "@sx-bet/sportx-js";
import { providers } from "ethers";

async function main() {
  const sportX = await newSportX({
    env: Environments.SxToronto,
    sidechainProvider: new providers.Web3Provider(web3.currentProvider)
  });
}

newSportX returns a promise that resolves to an initialized SportX API object.

The following assumes you have an initialized sportX API object.

Error handling

As a foreword the wrapper throws errors if parameters are bad, mismatched, or there is an internal error from the API. There are three types of errors the wrapper throws:

1. APIError. This error is a 4XX from the API. You can find the reason for the error in the details property object on the error itself. An example details property is

{
  "statusCode": 400,
  "error": "Bad Request",
  "message": "TAKER_INSUFFICIENT_BASE_TOKEN_ALLOWANCE"
}

"TAKER_INSUFFICIENT_BASE_TOKEN_ALLOWANCE" is the error code. The below sections will detail the possible APIError error codes that are possible for each method of the wrapper.

2. APISchemaError. This error is the wrapper throwing an error before it reaches the API. In this case, one of the passed arguments are malformed. It will say which passed argument is malformed.

Get all the active markets

This function uses pagination to retrieve active market data. The response will contain two values: markets and nextKey. For the next set of markets, the paginationKey must be provided.

Field Notes:

• paginationKey (optional) - needed to iterate over all markets
• pageSize (optional) - the default AND max pageSize value is 50

const data = await sportX.getActiveMarkets({
  paginationKey: "<myPaginationKey>",
  pageSize: 10
});

console.log(`active markets: ${data.markets}`);
console.log(`next pagination key: ${data.nextKey}`);

The above produces an object that contains two values:

1. markets: Which produces an array of objects with the following schema:

interface IMarket {
  status: string;
  marketHash: string;
  outcomeOneName: string;
  outcomeTwoName: string;
  outcomeVoidName: string;
  teamOneName: string;
  teamTwoName: string;
  type: string;
  gameTime: number;
  line?: number;
  reportedDate?: number;
  outcome?: number;
  teamOneScore?: number;
  teamTwoScore?: number;
  teamOneMeta?: string;
  teamTwoMeta?: string;
  marketMeta?: string;
  sportXeventId: string;
  sportLabel: string;
  sportId: number;
  leagueId: number;
  homeTeamFirst: boolean;
  leagueLabel?: string;
}

2. nextKey: Which provides a string value of the next paginationKey.

The sportId and leagueId's actual names can be found by fetching the leagues and sports. See below.

line will either be a spread or a total. You can figure out which team the spread is attributed to by looking at outcomeOneName and outcomeTwoName.

Example for a money line market:

{
  "status": "ACTIVE",
  "marketHash": "0xee848defbfe6ebd564c12fc15018498329c3f9093167fde0f74742503cb75939",
  "outcomeOneName": "Brett Johns",
  "outcomeTwoName": "Tony Gravely",
  "outcomeVoidName": "NO_GAME",
  "teamOneName": "Brett Johns",
  "teamTwoName": "Tony Gravely",
  "type": "MONEY_LINE",
  "gameTime": 1579991700,
  "sportXeventId": "1083108429,1624",
  "sportLabel": "Mixed Martial Arts",
  "sportId": 7,
  "leagueId": 34,
  "homeTeamFirst": true,
  "leagueLabel": "UFC",
  "group1": "UFC"
}

Example for a spread market:

{
    "status": "ACTIVE",
    "marketHash": "0x319af9631cd3b8950747daada600fbeebf222e1ee18dea7f10c78be23c353029",
    "outcomeOneName": "M. Vondrousova -5",
    "outcomeTwoName": "S. Kuznetsova +5",
    "outcomeVoidName": "NO_GAME_OR_EVEN",
    "teamOneName": "M. Vondrousova",
    "teamTwoName": "S. Kuznetsova",
    "type": "SPREAD_GAMES",
    "gameTime": 1579586400,
    "line": -5,
    "sportXeventId": "669448,16242",
    "sportLabel": "Tennis",
    "sportId": 6,
    "leagueId": 1025,
    "homeTeamFirst": true,
    "leagueLabel": "WTA Australian Open",
    "group1": "WTA Australian Open"
},

Example for an over/under/total market:

{
  "status": "ACTIVE",
  "marketHash": "0xa45de5dff4da161ef7c9170408f842c70f41a31800380d005a1a0a1e6abe67bb",
  "outcomeOneName": "Over 3",
  "outcomeTwoName": "Under 3",
  "outcomeVoidName": "NO_GAME_OR_EVEN",
  "teamOneName": "RKC Waalwijk",
  "teamTwoName": "VVV Venlo",
  "type": "OVER_UNDER_GOALS",
  "gameTime": 1579977900,
  "line": 3,
  "sportXeventId": "1088774097,1928",
  "sportLabel": "Soccer",
  "sportId": 5,
  "leagueId": 237,
  "homeTeamFirst": true,
  "leagueLabel": "Netherlands Eredivisie",
  "group1": "Netherlands Eredivisie"
}

There are no errors to handle for this endpoint.

Get all the sports supported by SportX

const sports = await sportX.getSports();
console.log(sports);

Which produces an array of objects with the following schema:

interface ISport {
  sportId: number;
  label: string;
}

Example output:

[
  { "sportId": 1, "label": "Basketball" },
  { "sportId": 2, "label": "Hockey" },
  { "sportId": 3, "label": "Baseball" },
  { "sportId": 4, "label": "Golf" },
  { "sportId": 5, "label": "Soccer" },
  { "sportId": 6, "label": "Tennis" },
  { "sportId": 7, "label": "Mixed Martial Arts" },
  { "sportId": 8, "label": "Football" },
  { "sportId": 10, "label": "Custom" }
]

Get all the leagues supported by SportX

const leagues = await sportX.getLeagues();
console.log(leagues);

Which produces an array of objects with the following schema:

interface ILeague {
  leagueId: number;
  label: string;
  sportId: number;
  homeTeamFirst: boolean;
}

Example output:

[
  {
    "leagueId": 1,
    "label": "NBA",
    "sportId": 1,
    "homeTeamFirst": false
  },
  {
    "leagueId": 2,
    "label": "NCAA",
    "sportId": 1,
    "homeTeamFirst": false
  },
  {
    "leagueId": 3,
    "label": "NHL",
    "sportId": 2,
    "homeTeamFirst": false
  },
  {
    "leagueId": 29,
    "label": "English Premier League",
    "sportId": 5,
    "homeTeamFirst": true
  }
]

Submit a new order to a market

Note that to submit new orders you will first have to approve the SportX contracts for trading. See "Approve SportX contracts for trading"

The odds in the API are all in a special implied format. For example, 2.0 (decimal) = 0.5 (implied). You'll need to convert your odds into implied in order to submit a new order to SportX. The odds you submit to place a new order on SportX are the odds you will receive as a bookmaker. Best explained with an example:

The payload you need to submit looks like this:

interface INewOrder {
  marketHash: string;
  totalBetSize: string;
  percentageOdds: string;
  expiry: number;
  isMakerBettingOutcomeOne: boolean;
  baseToken: string;
}

marketHash is the hash of the market to place the order. You can get a list of active markets using sportX.getActiveMarkets() as above.

totalBetSize is the maximum amount you wish to bet on the market. Note that this is an order so it might not be filled, partially filled, or fully filled.

percentageOdds is the implied odds you as a maker will receive in a special format. Note that these are not the odds you are offering! To convert between a maker (you) and taker odds, the formula is takerImpliedOdds = 1 - makerImpliedOdds

expiry is the expiry date of the order as a Unix timestamp. After this date, this order will be automatically removed and invalidated.

isMakerBettingOutcomeOne is true or false depending on if you as the maker wish to bet on outcome one or outcome two. You can see what the outcomes are in the IMarket schema above.

baseToken is the token you wish to make the order in.

Some of these fields might have to be converted to a special format before submitting, but utilities are supplied for that.

Example:

import { parseUnits } from "ethers/utils";
import moment from "moment";
import {
  convertToAPIPercentageOdds,
  convertToTrueTokenAmount
} from "@sx-bet/sportx-js";

const activeMarkets = await sportX.getActiveMarkets();
const firstMarketHash = activeMarkets[0].marketHash;
const newOrder = {
  marketHash: firstMarketHash,
  totalBetSize: convertToTrueTokenAmount(10).toString(),
  percentageOdds: convertToAPIPercentageOdds(0.5).toString(),
  expiry: moment()
    .add(1, "hour")
    .unix(),
  isMakerBettingOutcomeOne: true
  baseToken: "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1"
};
const response = await sportX.newOrder(newOrder);
console.log(response);

Here the totalBetSize is 10, converted into Ethereum format using the convertToTrueTokenAmount() utility. The implied odds that the maker is receiving is 0.5, converted into the Ethereum format using the convertToProtocolPercentage() utility.

If successful, the response will look like

{
  "status": "success",
  "data": {
    "orderHash": "0x066b9ce3e0b2e671695015db9cd772224120e03663e93d35ee447b86b2b49ef4"
  }
}

The following APIError error codes are possible for this endpoint:

• INSUFFICIENT_BALANCE - You do not have enough balance to submit a new order. The API considers all other orders you currently have outstanding on this particular (market,side,baseToken)

Cancel an existing order

To cancel an order you've submitted via above, you simply need the orderHashes of the order you wish to cancel. To get this, you can use the getActiveOrders(address) to get a list of all your active orders (see below).

The cancellations are instant.

Example:

const response = await sportX.cancelOrder([
  "0x066b9ce3e0b2e671695015db9cd772224120e03663e93d35ee447b86b2b49ef4",
]);
console.log(response);

If successful, the response will look like

{
  "status": "success",
  "data": {
    "orderHashes": [
      "0x066b9ce3e0b2e671695015db9cd772224120e03663e93d35ee447b86b2b49ef4"
    ]
  }
}

If it failed, it will throw an APISchemaError or APIError.

The following APIError error codes are possible for this endpoint:

• ORDERS_DONT_EXIST - The orders you are cancelling no longer exist.

You can supply a second parameter if you wish to show a message to the user (if you are a user-facing application) as this is using eth_signTypedData behind the scenes. For example you could pass the string "Cancel orders":

const response = await sportX.cancelOrder(
  ["0x066b9ce3e0b2e671695015db9cd772224120e03663e93d35ee447b86b2b49ef4"],
  "Cancel orders"
);
console.log(response);

Get all orders on market(s)

To get all the orders for market(s), simply call getOrders(marketHashes?: string[], maker?: string, baseToken?: string).

Example:

const orders = await sportX.getOrders([
  "0x75f5d0544a38bf41afab5cfd0a2b40b8df32bd76d91bfa5ece47ba739b179e4d",
]);
console.log(orders);

Which produces:

[
  {
    "fillAmount": "0",
    "orderHash": "0x4091e13e0e8f104f70bc5f147adebb5961adf85f869806f868cab37520e7cda6",
    "marketHash": "0x75f5d0544a38bf41afab5cfd0a2b40b8df32bd76d91bfa5ece47ba739b179e4d'",
    "baseToken": "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1",
    "maker": "0xaD90d89b23Fc80bCF70c3E8CC23a21ccADFBC95F",
    "totalBetSize": "150000000000000000000",
    "percentageOdds": "91485727650227679586",
    "expiry": 1560904200,
    "salt": "84548885320416437228828145919856326657411590956960346919167755421671785285427",
    "executor": "0xEBF9c090bb9E9cea54c1f5eC23c238aB42922289",
    "isMakerBettingOutcomeOne": true,
    "signature": "0x59c3c9c6da0ae1cc77072e43856cf8f4a6aa3f9caf737a33a279787ff34ecd94064bc3fc2a438bb317eb2a455d9b84b2e155a2c7eaf7f73a0b58fad9cd41a0da1b"
  },
  {
    "fillAmount": "0",
    "orderHash": "0x4b44c1c7f7f32ea42813c624e2bdef570333da214e617a1827445d78a594f259",
    "marketHash": "0x75f5d0544a38bf41afab5cfd0a2b40b8df32bd76d91bfa5ece47ba739b179e4d",
    "baseToken": "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1",
    "maker": "0xaD90d89b23Fc80bCF70c3E8CC23a21ccADFBC95F",
    "totalBetSize": "75000000000000000000",
    "percentageOdds": "896417220308870961",
    "expiry": 1560904200,
    "salt": "62965102436418569939919982284939290277379355861365515708707721407487470531319",
    "executor": "0xEBF9c090bb9E9cea54c1f5eC23c238aB42922289",
    "isMakerBettingOutcomeOne": false,
    "signature": "0x726950b8d0643143caaaf3907c70f4d6142611d1024b2372e8a8880f0244ea947e569fc9449ea24f945ecced8a825892affe506f9ea9605aec29c68135756e721c"
  }
]

Explanation of the fields:

fillAmount is how much this order is filled by in Ethereum units. To convert to a readable amount you can use:

import { convertToDisplayAmount } from "@sx-bet/sportx-js";
console.log(convertToDisplayAmount("150000000000000000000"));

which produces "150"

orderHash is the unique ID of the order

marketHash is the unique ID of the market

maker is the address who created this order

totalBetSize is the total size of the order

baseToken is the token this order is denominated in

percentageOdds is the implied odds the maker is receiving for this order. To convert into a readable implied odds, you can use:

import { convertFromAPIPercentageOdds } from "@sx-bet/sportx-js";

const odds = "88985727650227679586";
const convertedOdds = convertFromAPIPercentageOdds(odds);
console.log(convertedOdds);

which outputs 0.8898572765022768 (note that some rounding will occur)

expiry is the time at which the order is no longer valid and cannot be filled.

isMakerBettingOutcomeOne says whether the maker is betting outcome one or not. See the data from sportX.getActiveMarkets() to see what the outcomes are for the market.

The below are for information purposes only and not needed to operate this API.

salt is a random number to differentiate between two otherwise identical orders

executor is the address actually submitting the transaction to fill the order on the blockchain

signature is the signature on the order payload by the maker to verify that the maker did indeed create this order.

Filling orders

To actually fill orders on SportX, you will need the actual orders themselves which you can obtain from getOrders() as well as the amount(s) you want to fill each order.

Note that to submit orders you will first have to approve the SportX contracts for trading. See "Approve SportX contracts for trading"

The orders are filled meta style, meaning that the filler does not pay for gas and instead the user just signs an "intent to fill" hash. The API covers the gas fee.

The signature is

fillOrders(orders: ISignedRelayerMakerOrder[], betAmounts: string[], fillDetailsMetadata?: IFillDetailsMetadata, affiliateAddress?: string, approvalTx?: string)

Note that you will still need to get the actual orders themselves from getOrders(marketHash). You will need to find the orders in the getOrders(marketHash) response whose orderHashe(s) match up.

There are superfluous fields that getOrders(marketHash) returns such as signature and fillAmount. You can keep these and pass the whole object to fillOrders.

Example (filling one order):

const orders = [
  {
    executor: "0xEBF9c090bb9E9cea54c1f5eC23c238aB42922289"
    expiry: 1571763300
    isMakerBettingOutcomeOne: false
    maker: "0xE5F5cC7496b2B39F0a76442Bc8De0E7FEedc7e55"
    marketHash: "0x6fb98d18da6658435f7bdc645e30aa103882f3f5a814b6e64bf6829d5bb7af11"
    percentageOdds: "56827118644067796610"
    salt: "109465971184042040832918255631084373861510812876584310918706085768814010131009"
    totalBetSize: "250000000000000000000"
    baseToken: "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1"
    signature: "0x413dda285693ecac431b8346b41c4aa618a703e489b6aa93215ccdf83e4a03326da1099a07b14c3d513c16f7a94297c1b59ab18d3350d6551410d18043d965101b"
  }
];
const fillAmounts = [
  "200000000000000000000"
];
const result = await sportX.fillOrders(orders, fillAmounts);
console.log(result)

Which produces, if successful:

{
  "status": "success",
  "hash": "0x1783ab84c367309ed2038c818c864501757418c61f25b6da617f83f64adce45c"
}

This hash is a transaction hash for the actual ethereum transaction which you can track. Note that this might not be the final transaction! Depending on gas prices, the SportX relayer will retry to submit the bet until it is successful. However, at this point, the bet is confirmed.

If you wish to submit an approval transaction for an amount of at least the bet amount to the ERC20 token (instead of providing unlimited allowance to the SportX smart contracts) prior, you can craft the transaction, use eth_signTransaction to sign it, and submit the encoded version as the approvalTx parameter. On the backend, we will relayer the transaction for you, but provide you with an instant (optimistic) confirmation.

Moreover, if you are a user facing application, similar to cancel order, you can pass an object with the format

export interface IFillDetailsMetadata {
  action: string;
  market: string;
  betting: string;
  stake: string;
  odds: string;
  returning: string;
}

as the fillDetailsMetadata parameter to show the user some information using eth_signTypedData.

The following APIError error codes are possible for this endpoint:

• ORDERS_NOT_UNIQUE - Ensure that the order hashes of the orders passed are unique. If you want to fill the same order multiple times, increase the amount instead
• INCORRECT_ARRAY_LENGTHS - The length of the orders array is not the same as the betAmounts array. Ensure they are the same.
• ORDERS_DONT_EXIST - The orders you are trying to fill do not exist.
• TOO_CLOSE_TO_ORDER_EXPIRY - The order is too close to its expiry. The API prevents filling orders too close to their expiry due to the time it takes to mine a block on Ethereum
• TAKER_AMOUNT_TOO_LOW - One of the bet amounts in betAmounts is too low. Ensure that it meets the minimum as specified in the getMetadata() endpoint.
• BASE_TOKENS_NOT_SAME - The base tokens of the orders are not the same. Ensure they are the same.
• MARKETS_NOT_SAME - The markets of the orders are not the same. Ensure they are the same.
• DIRECTIONS_NOT_SAME - The directions of the orders are not the same. Ensure they are the same.
• NOT_MAIN_LINE - For spread and over under markets where the "line" is changing, you can only currently fill orders on the "main" or "vegas" line.
• META_TX_RATE_LIMIT_REACHED - There is a maximum of 3 orders that can be submitted at once for each taker to prevent spam.
• INSUFFICIENT_SPACE - One of the orders you are trying to fill has insufficient space. i.e., the bet amount is too high for this particular order.
• FILL_ALREADY_SUBMITTED - This exact fill has already been submitted. Perhaps you have called the endpoint twice with identical parameters.
• BAD_AFFILIATE - The affiliate passed is not registered or malformed.

The following are only valid if you passed an approvalTx parameter

• APPROVAL_TX_BAD_TRANSACTION_FORMAT - The format of the encoded transaction is bad.
• APPROVAL_TX_SIGNATURE_NOT_PRESENT - The transaction is not signed
• APPROVAL_TX_TARGET_INVALID - The to field for the approval transaction is not to the correct token
• APPROVAL_TX_VALUE_NOT_ZERO- The approval tx cannot have any value specified
• APPROVAL_TX_FROM_UNDEFINED - The from parameter is undefined or does not match the taker
• APPROVAL_TX_BAD_CHAIN_ID - The chainId in the transaction is invalid
• APPROVAL_TX_BAD_NONCE - The nonce of the approval tx is bad.
• APPROVAL_TX_BAD_DECODED_ARGUMENTS - The data field of the transaction is malforemd
• APPROVAL_TX_INCORRECT_APPROVAL_TARGET - The contract to be approved is incorrect. It must be the TokenTransferProxy address. See the TOKEN_TRANSFER_PROXY_ADDRESS constant.
• APPROVAL_TX_INSUFFICIENT_ALLOWANCE - The allowance amount is insufficient. It must be greater than or equal to the amount of tokens that will be withdrew from the taker's account.

Get all active orders for an account

To get all the active (unfilled or partially filled) orders for an account, you can do the following:

const activeOrders = await sportX.getOrders(
  undefined,
  "0xF59E93290383ED15F73Ee923EbbF29f79e37B6d8"
);
console.log(activeOrders);

Which produces:

[
  {
    "fillAmount": "0",
    "orderHash": "0x8ddd34e73b288d4c038539ee813ea88607803a3e24ae443b3040f9e8793394fe",
    "marketHash": "0xbb0b062dc0d017e43578dc9303f48cd73602bd4f6a9585b91ee4a2a1e0afbc36",
    "maker": "0xaD90d89b23Fc80bCF70c3E8CC23a21ccADFBC95F",
    "totalBetSize": "75000000000000000000",
    "percentageOdds": "55152773438304856903",
    "expiry": 1560884400,
    "salt": "35485978637141361876232738522929776286192680166268767752859378082539513060903",
    "executor": "0xEBF9c090bb9E9cea54c1f5eC23c238aB42922289",
    "baseToken": "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1",
    "isMakerBettingOutcomeOne": false,
    "signature": "0xf2f0210f328eb04878496a6f970cc400672db524fd5650bf9ca42ce1774060082a040dc6e85bde539602babcb1e97d295f6a6078436d40bef1d4ac7319081ad81c"
  },
  {
    "fillAmount": "0",
    "orderHash": "0x808c93f3b5ee8cb47599be8e23a0d811e0752abf189a6746adad6f3a06ee9fda",
    "marketHash": "0xbb0b062dc0d017e43578dc9303f48cd73602bd4f6a9585b91ee4a2a1e0afbc36",
    "maker": "0xaD90d89b23Fc80bCF70c3E8CC23a21ccADFBC95F",
    "totalBetSize": "500000000000000000000",
    "percentageOdds": "36058315409643831747",
    "expiry": 1560884400,
    "baseToken": "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1",
    "salt": "78496959933119259419935033215094016205058812453361105019042873506621461421155",
    "executor": "0xEBF9c090bb9E9cea54c1f5eC23c238aB42922289",
    "isMakerBettingOutcomeOne": true,
    "signature": "0xf119ed45ac127538eae88d07c048f41d881c2699d13f18b02edf54c04783dc9c4f877dba0fc153d5394e6d2fb9bcbbce1aea265ac16c70489e648bad4568bb901c"
  }
]

Get pending or failed bets for a user

Bets are instantly confirmed but they might have not settled yet on the blockchain or in rare cases they might have failed. You can query bets that have yet to be settled using sportX.getPendingOrFailedBets(bettor, startDate?, endDate?, fillHash?, baseToken?). Note that this only works if the bettor is the taker in the trade

Example:

const pendingOrFailedBets = await sportX.getPendingOrFailedBets({
  bettor: "0xaD90d89b23Fc80bCF70c3E8CC23a21ccADFBC95F",
  startDate: 1590088356,
  endDate: 1580411556,
  fillHash:
    "0xe0e0802da0681030e43e4bb26209381f3be60193dd7a6ee3e70758751e417e24",
  baseToken: "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1",
});
console.log(pendingOrFailedBets);

Which produces the details of the bets like so:

[
  {
    "fillAmounts": ["44726667169493745756"],
    "orderHashes": [
      "0xe0cacd1adbc174b325d670ccb9dda58482b8921bf263fe4567c306ad5e2d7e96"
    ],
    "taker": "0xaD90d89b23Fc80bCF70c3E8CC23a21ccADFBC95F",
    "status": "PENDING",
    "betTime": 1590089356,
    "fillHash": "0xe0e0802da0681030e43e4bb26209381f3be60193dd7a6ee3e70758751e417e24",
    "baseToken": "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1"
  }
]

The possible statuses can be "TIMEOUT", "FAIL", or "PENDING"

Get past trades (graded/settled and ungraded/unsettled)

You can get past trades for your account (regardless if you were the maker or taker in the trade), as well as query for trades that are still pending or unsettled using getTrades(tradeRequest: IGetTradesRequest)

where the payload looks like:

export interface IGetTradesRequest {
  startDate?: number;
  endDate?: number;
  bettor?: string;
  settled?: boolean;
  marketHashes?: string[];
  baseToken?: string;
  maker?: boolean;
}

Example (getting unsettled trades):

const unsettledTrades = await sportX.getTrades(
  1575912953,
  1576008230,
  false,
  false,
  ["0x79dc0ebbfd89de79f5ee0f1e495480fbea3efb341e3087b2852915c0d5c0d450"],
  "0xa6dd914D83Fb3826f4881009D8537FE8f85D7c23",
  false
);
console.log(unsettledTrades);

startDate is in unix seconds. If present, all trades will be after this time endDate is in unix seconds. If present, all trades will be before this time. bettor is one of the bettors in the trade. Note that a full trade between two parties is split into two objects. settled is true or false. You can search for only unsettled trades or settled trades using this. marketHashes allows you to filter by certain markets only baseToken allows you to filter by certain tokens only maker allows you to sort by trades where the bettor is the maker only, or the taker only.

Which produces unsettled trades like so:

[
  {
    "baseToken": "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1",
    "bettor": "0xaD90d89b23Fc80bCF70c3E8CC23a21ccADFBC95F",
    "stake": "46176499173875012149",
    "odds": "82198961937716262976",
    "orderHash": "0xe41ecf31600664ccb02fca45205960512f9858772bb40383db29efeeea451555",
    "marketHash": "0x17a16c619f6668d55c83369c3ad1efa95dc8c24a06a004fb09b128e23e5b2aeb",
    "maker": true,
    "betTime": 1579194269,
    "settled": true,
    "bettingOutcomeOne": false
  },
  {
    "baseToken": "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1",
    "bettor": "0x89181a0E0a9de0B5B21033e5b5A1dEBFcf097065",
    "stake": "9999999999999999999",
    "odds": "17801038062283737024",
    "orderHash": "0xe41ecf31600664ccb02fca45205960512f9858772bb40383db29efeeea451555",
    "marketHash": "0x17a16c619f6668d55c83369c3ad1efa95dc8c24a06a004fb09b128e23e5b2aeb",
    "maker": false,
    "betTime": 1579194269,
    "settled": false,
    "bettingOutcomeOne": true
  }
]

Approve SportX contracts for trading

Before you are able to fill orders or submit new orders, you need to approve the SportX contracts for trading. You can do this by simply calling:

const approvalTxn = await sportX.approveSportXContracts(tokenAddress);
console.log(approvalTxn);

where tokenAddress is the address of the token you wish to bet in.

which produces:

{
  "status": "success",
  "data": {
    "hash": "0x71a67000f7bfd91db39115abd437dc33c7bd774d981d11ac54e00606ea11fa95"
  }
}

You can track the status of the transaction on https://etherscan.io with the hash given by hash. Once this is complete, you will be able to place fill orders and submit new orders.

Subscribe to market changes

To subscribe to market changes (game time changes, market is graded, market is invalidated, new market is created), you can do the following

const realtime = await sportX.getRealtimeConnection();
const channel = realtime.channels.get(`markets`);
channel.subscribe((message) => {
  console.log(message);
});
// When done, channel.detach()

Here, message will be a market object in the same format you receive from getActiveMarkets(). Here is how you should update your collection:

1. If the market does not exist in your collection, it is a new market, otherwise it should be replaced by marketHash field.
2. If the market has a status of "INACTIVE", it means that the market has been invalidated and you should remove it from your collection.

Subscribe to live scores by game

To subscribe to live scores, you can do the following:

const realtime = await sportX.getRealtimeConnection();
const channel = realtime.channels.get(`live_scores`);
channel.subscribe((message) => {
  console.log(message);
});
// When done, channel.detach()

Here, message will be a live score object that looks like this.

export interface IDbLiveScores {
  period: string;
  teamOneScore: number;
  teamTwoScore: number;
  providerEventId: string;
  providerLeagueId: number;
  periodTime?: string;
  sportId: number;
}

Example:

{
  "sportId": 1,
  "teamOneScore": 56,
  "teamTwoScore": 88,
  "sportXeventId": "3434994,1221",
  "periodTime": "43:56",
  "period": "Q4"
}

You can map these back to the markets in getActiveMarkets() by using sportXeventId.

Subscribe to order book changes by market

To subscribe to order book updates, you can do the following. You need the marketHash and the baseToken of the orders you are subscribing to:

const realtime = await sportX.getRealtimeConnection();
const baseToken = "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1";
const marketHash =
  "0xde2b8cf87f9f63e115a0adfeab3fa4191501fb10d7aef5c76099f475d3407caf";
const channel = realtime.channels.get(`order_book:${baseToken}:${marketHash}`);
channel.subscribe((message) => {
  console.log(message);
});
// When done, channel.detach()

The updates will be in an array and will look identical to those produced in getOrders(). You can use these simple rules to update your collection:

1. If the order does not exist and has status: "ACTIVE", you can add it to your collection.
2. If the order exists by orderHash and the update order has status: "ACTIVE", you should replace the order.
3. If the order exists by orderHash and the update order has status: "INACTIVE", you should remove that order from your collection.

Subscribe to active orders

To subscribe to active order updates for an address (for instance if you are a market maker), you need the ethereum address of the market maker, and the baseToken of orders you wish to track:

const realtime = await sportX.getRealtimeConnection();
const baseToken = "0x44495672C86eEeE14adA9a3e453EEd68a338cdC1";
const maker = "0xc815634b516B63178A09dF7aAB013A520854F4f5";
const channel = realtime.channels.get(`active_orders:${baseToken}:${maker}`);
channel.subscribe((message) => {
  console.log(message);
});
// When done, channel.detach()

The updates will be in an array and will look identical to those produced in getOrders(). You can use these simple rules to update your active order collection:

1. If the order does not exist and has status: "ACTIVE", you can add it to your collection.
2. If the order exists by orderHash and the update order has status: "ACTIVE", you should replace the order.
3. If the order exists by orderHash and the update order has status: "INACTIVE", you should remove that order from your collection.

Lookup markets

You can lookup markets by marketHash by using marketLookup(marketHashes).

const markets = await sportX.marketLookup([
  "0xde2b8cf87f9f63e115a0adfeab3fa4191501fb10d7aef5c76099f475d3407caf",
]);
console.log(markets);

which produces an output in the same format as getActiveMarkets(). Example:

[
  {
    "status": "ACTIVE",
    "marketHash": "0xde2b8cf87f9f63e115a0adfeab3fa4191501fb10d7aef5c76099f475d3407caf",
    "outcomeOneName": "Brett Johns",
    "outcomeTwoName": "Tony Gravely",
    "outcomeVoidName": "NO_GAME",
    "teamOneName": "Brett Johns",
    "teamTwoName": "Tony Gravely",
    "type": "MONEY_LINE",
    "gameTime": 1579991700,
    "sportXeventId": "1083108429,1624",
    "sportLabel": "Mixed Martial Arts",
    "sportId": 7,
    "leagueId": 34,
    "homeTeamFirst": true,
    "leagueLabel": "UFC",
    "group1": "UFC"
  }
]

Debugging

We use https://www.npmjs.com/package/debug to provide debugging support for consumers of this package. Simply

export DEBUG=sportx-js

and you will see raw responses from the SportX relayer.