> For the complete documentation index, see [llms.txt](https://docs.flash.trade/flash-trade/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flash.trade/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides/open-and-close-positions.md).

# Open & close positions

**Prerequisite:** a funded, delegated wallet — see [Set up & fund a wallet](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides/set-up-and-fund-a-wallet.md).

## Pick your entry

| You want to…                  | Use                                                                                                                                                               |
| ----------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Enter now at market           | `open-position` with `orderType: "MARKET"` (default)                                                                                                              |
| Enter at a target price       | `open-position` with `orderType: "LIMIT"` + `limitPrice` → [Limit orders](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides/limit-orders.md) |
| See the quote, commit nothing | `open-position` **without** `owner` (returns `transactionBase64: null`)                                                                                           |

## Open

```bash
curl -X POST $FLASH_API_URL/transaction-builder/open-position -d '{
  "inputTokenSymbol": "USDC", "outputTokenSymbol": "SOL",
  "inputAmountUi": "100.0", "leverage": 5.0, "tradeType": "LONG",
  "owner": "<WALLET>"
}'
```

Sign, submit to the **v2 RPC**, confirm. Attach exits in the same call with `takeProfit` / `stopLoss` → [Take-profit & stop-loss](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides/take-profit-and-stop-loss.md).

→ Every field: [API reference › Trading › Open position](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/reference/trading.md#open-position)

## Read the result

The trade response is a quote, not state. Read the position from the basket:

```bash
curl $FLASH_API_URL/owner/<WALLET>
```

→ [Read positions & orders](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides/read-positions-and-orders.md)

## Close

`close-position` does both full and partial closes. Set `closeAll: true` to force a full close regardless of rounding.

```bash
# Full close
curl -X POST $FLASH_API_URL/transaction-builder/close-position -d '{
  "marketSymbol": "SOL", "side": "LONG", "inputUsdUi": "500", "closeAll": true,
  "withdrawTokenSymbol": "USDC", "owner": "<WALLET>"
}'

# Partial close ($200 of a $500 position)
curl -X POST $FLASH_API_URL/transaction-builder/close-position -d '{
  "marketSymbol": "SOL", "side": "LONG", "inputUsdUi": "200",
  "withdrawTokenSymbol": "USDC", "owner": "<WALLET>"
}'
```

→ [API reference › Trading › Close position](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/reference/trading.md#close-position)

## Related

* Resize an open position → [Increase, decrease & reverse](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides/increase-decrease-and-reverse.md)
* Lower your liquidation price → [Manage collateral](/flash-trade/flash-trade-protocol/build-on-flash/flash-trade-v2/guides/manage-collateral.md)


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