# Definitions

#### Asset Symbols / Trading Pairs

<table><thead><tr><th width="223">Enum</th><th>Description</th></tr></thead><tbody><tr><td><code>BTC_USDT</code></td><td>Bitcoin; USD Tether</td></tr></tbody></table>

#### Order Types

<table><thead><tr><th width="223">Enum</th><th>Description</th></tr></thead><tbody><tr><td><code>LIMIT</code></td><td>Limit order. </td></tr><tr><td><code>MARKET</code></td><td>Market order. </td></tr><tr><td><code>LIMIT_MAKER</code></td><td>Limit maker order (if the order being a taker, it will be expired).</td></tr></tbody></table>

#### Order Sides

<table><thead><tr><th width="223">Enum</th><th>Description</th></tr></thead><tbody><tr><td><code>BUY</code></td><td>This order takes away liquidity to the order book (taker) </td></tr><tr><td><code>SELL</code></td><td>This order supplies liquidity to the order book (maker) </td></tr></tbody></table>

#### Order Status & Lifecycle&#x20;

<table><thead><tr><th width="223">Enum</th><th>Description</th></tr></thead><tbody><tr><td><code>NEW</code></td><td>Order has been received by exchange but it is not valid yet. </td></tr><tr><td><code>OPEN</code></td><td>Order is valid; it has been sent &#x26; received by matching engine.</td></tr><tr><td><code>PARTIAL_FILLED</code></td><td>Order is partially matched. Eligible to be partially cancelled. </td></tr><tr><td><code>FILLED</code></td><td>Order is executed successfully. End of state. </td></tr><tr><td><code>PARTIAL_CANCELLED</code></td><td>Order is partially matched and cancelled successfully. End of state. </td></tr><tr><td><code>CANCELLED</code></td><td>Order is cancelled successfully. End of state. </td></tr><tr><td><code>REJECTED</code></td><td>Order is invalid. End of state. </td></tr><tr><td><code>EXPIRED</code></td><td>Order is expired. End of state. </td></tr><tr><td><code>EXPIRED_IN_MATCH</code></td><td>Order has zero matches and then expired due to Self Trade Prevention being triggered. End of state.</td></tr><tr><td><code>PARTIALLY_EXPIRED_IN_MATCH</code></td><td>Order has partially matches and then expired due to Self Trade Prevention being triggered. End of state.</td></tr></tbody></table>

#### Time Intervals (Candlestick / Kline)&#x20;

<table><thead><tr><th width="223">Enum</th><th>Description</th></tr></thead><tbody><tr><td><code>1min</code></td><td>1 minute; 60 seconds</td></tr><tr><td><code>5min</code></td><td>5 minutes; 300 seconds</td></tr><tr><td><code>15min</code></td><td>15 minutes ; 900 seconds</td></tr><tr><td><code>30min</code></td><td>30 minutes; 1800 seconds</td></tr><tr><td><code>1h</code></td><td>1 hour; 60 minutes </td></tr><tr><td><code>4h</code></td><td>4 hours; 240 minutes </td></tr><tr><td><code>1day</code></td><td>1 day; 24 hours </td></tr><tr><td><code>1week</code></td><td>1 week; 7 days </td></tr><tr><td><code>1month</code></td><td>1 month</td></tr></tbody></table>
