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Darkfibre Documentation

sell()

Sell a specified amount of tokens to receive SOL.

sell(options: SellOptions): Promise<TransactionResult>

Parameters

Section titled “Parameters”
ParameterTypeRequiredDescription
mintstringYesToken mint address to sell
tokenAmountnumberYesAmount of tokens to sell
slippagenumberYesSlippage tolerance (0.01 = 1%, 0.05 = 5%)
priorityPriorityYesTransaction priority ('economy', 'fast', 'faster', 'fastest')
maxPriorityCostnumberNoMaximum priority fee in SOL

Return Value

Section titled “Return Value”

Returns a TransactionResult object with transaction details and trade amounts.

interface TransactionResult {
  signature: string;        // Transaction signature (use for block explorers)
  status: string;           // Transaction status (e.g., "confirmed")
  slot: number;             // Solana slot number where transaction landed
  platform: string;         // Trading platform (e.g., "pump_fun")
  inputMint: string;        // Input token mint address (token for sell)
  outputMint: string;       // Output token mint address (SOL for sell)
  tradeResult: {
    inputAmount: number;    // Amount of tokens sold (actual on-chain amount)
    outputAmount: number;   // Amount of SOL received (actual on-chain amount)
  };
  priorityCost: number;     // Priority fee cost in SOL
}

Example

Section titled “Example”
import { DarkfibreSDK } from '@darkfibre/sdk';


const sdk = new DarkfibreSDK({
  apiKey: 'your-api-key',
  privateKey: 'your-base58-private-key',
});


const result = await sdk.sell({
  mint: 'DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263', // BONK
  tokenAmount: 1000.55,
  slippage: 0.05,
  priority: 'fast',
});


console.log('Transaction:', result.signature);
console.log('Tokens sold:', result.tradeResult.inputAmount);
console.log('SOL received:', result.tradeResult.outputAmount);
console.log('Priority fee:', result.priorityCost, 'SOL');

Notes

Section titled “Notes”
  • Mode: This is an exactIn operation. You specify the exact tokens to sell, and receive an estimated SOL amount.
  • Slippage: The maximum price change you are willing to accept during the trade. 0.05 means 5%, anything worse and the transaction fails.
  • Priority: Higher priority means faster execution but higher network fees.
  • Input/Output perspective: The inputMint and outputMint fields in the response are from the DEX’s perspective (what goes into the DEX vs what comes out). For a sell operation, inputMint is the token (what the DEX receives) and outputMint is SOL (what the DEX sends out).
Section titled “Related”