Coinbase Advanced Trade Private JavaScript SDK example: closePosition.ts
Coinbase Advanced Trade Private close position JavaScript example for the Siebly Coinbase SDK, covering exchange REST API and WebSocket integration, setup, and production SDK docs.
We use environment variables in our examples for API keys. It is your responsibility to manage and secure your keys appropriately.
examples/Coinbase/AdvancedTrade/Private/closePosition.ts
What this example covers
- Coinbase exchange API JavaScript example.
- Uses the Siebly Coinbase SDK package
coinbase-apiinstead of hand-written HTTP request plumbing. - Source path:
Coinbase/AdvancedTrade/Private/closePosition.ts. - Example category: Advanced Trade Private.
- Imports SDK symbols including
CBAdvancedTradeClient. - Calls SDK methods such as
closePosition(),generateNewOrderId().
How to use this example
- Start here for the specific request or stream pattern, then check the matching SDK guide for install, credentials, and operational notes.
- For private or order-management examples, keep credentials in environment variables or a secret manager. Use read-only keys where possible, and check the execution mode reference before any exchange write path can run.
- Open the repository source when you need the latest committed version: GitHub source file.
import { CBAdvancedTradeClient } from 'coinbase-api'; // initialise the client/** * * You can add both ED25519 and ECDSA keys, client will recognize both types of keys * * ECDSA: * * { * apiKey: 'organizations/your_org_id/apiKeys/your_api_key_id', * apiSecret: * '-----BEGIN EC PRIVATE KEY-----\nMHcCAQEEIPT/TTZPxw0kDGvpuCENJp9A4/2INAt9/QKKfyidTWM8oAoGCCqGSM49\nAwEHoUQDQgAEd+cnxrKl536ly5eYBi+8dvXt1MJXYRo+/v38h9HrFKVGBRndU9DY\npV357xIfqeJEzb/MBuk3EW8cG9RTrYBwjg==\n-----END EC PRIVATE KEY-----\n', * } * * ED25519: * { * apiKey: 'your-api-key-id', * apiSecret: 'yourExampleApiSecretEd25519Version==', * } * * */const client = new CBAdvancedTradeClient({ apiKey: process.env.API_KEY_NAME || 'insert_api_key_here', apiSecret: process.env.API_PRIVATE_KEY || 'insert_api_secret_here',}); // this function is suggested to used with spot market orders// If you want to close futures, it is recommended to use submitOrder() with the opposite side of the current position /* Closing Futures Positions - Exchange docsWhen a contract expires, we automatically close your open position at the exchange settlement price.You can also close your position before the contract expires(for example, you may want to close your position if you’ve reached your profit target,you want to prevent further losses, or you need to satisfy a margin requirement). There are two ways to close your futures positions:(1) Close your position with this endpoint, or(2) Create a separate trade to take the opposite position in the same futures contract you are currently holding in your account.For example, to close an open long position in the BTC 23 Feb 24 contract, place an order to sell the same number of BTC 23 Feb 24 contracts.If you were short to begin with, go long the same number of contracts to close your position. More info on https://docs.cdp.coinbase.com/advanced-trade/reference/retailbrokerageapi_closeposition#closing-futures-positions */ async function closePosition() { try { // close position const closePosition = await client.closePosition({ product_id: 'BTC-USD', size: '0.1', client_order_id: client.generateNewOrderId(), }); console.log('Result: ', closePosition); } catch (e) { console.error('Send new order error: ', e); } //} closePosition();