41 lines
1.2 KiB
TypeScript
41 lines
1.2 KiB
TypeScript
import { Token, TOKEN_PROGRAM_ID, u64 } from "@solana/spl-token";
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import { Connection, PublicKey, Transaction } from "@solana/web3.js";
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import { ixFromRust } from "../solana";
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import { importMigrationWasm } from "../solana/wasm";
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export default async function addLiquidity(
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connection: Connection,
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payerAddress: string,
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program_id: string,
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from_mint: string,
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to_mint: string,
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liquidity_token_account: string,
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lp_share_token_account: string,
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amount: BigInt
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) {
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const { authority_address, add_liquidity } = await importMigrationWasm();
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const approvalIx = Token.createApproveInstruction(
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TOKEN_PROGRAM_ID,
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new PublicKey(liquidity_token_account),
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new PublicKey(authority_address(program_id)),
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new PublicKey(payerAddress),
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[],
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new u64(amount.toString(16), 16)
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);
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const ix = ixFromRust(
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add_liquidity(
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program_id,
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from_mint,
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to_mint,
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liquidity_token_account,
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lp_share_token_account,
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amount.valueOf()
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)
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);
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const transaction = new Transaction().add(approvalIx, ix);
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const { blockhash } = await connection.getRecentBlockhash();
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transaction.recentBlockhash = blockhash;
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transaction.feePayer = new PublicKey(payerAddress);
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return transaction;
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}
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