例 · examples

Examples

Three runnable scripts that exercise the SDK against a Solana validator. Use a localnet for fast iteration, or devnet for end-to-end verification.

Run

bash

yarn install
ANCHOR_PROVIDER_URL=http://localhost:8899 \
ANCHOR_WALLET=~/.config/solana/id.json \
yarn ts-node examples/01-create-pool.ts

01 · Create pool

Creates two mock SPL mints with 6 decimals and initialises a pool with a 30 bps fee.

tsexamples/01-create-pool.ts

const decimals = 6;
const mintA = await createMint(connection, wallet, wallet.publicKey, null, decimals);
let mintB = await createMint(connection, wallet, wallet.publicKey, null, decimals);
if (mintA.toBuffer().compare(mintB.toBuffer()) > 0) {
  const tmp = await createMint(connection, wallet, wallet.publicKey, null, decimals);
  mintB = tmp;
}

const client = new HanamiClient({ connection, wallet });
const { pool } = await client.initializePool({
  tokenAMint: a,
  tokenBMint: b,
  feeBps: 30,
});

02 · Bloom lifecycle

Opens a bloom, waits for maturity, calls settleBloom. Logs the deposited and withdrawn amounts.

tsexamples/02-bloom-lifecycle.ts

const { bloom } = await client.createBloom({
  pool,
  amountA: new BN(1_000_000),
  amountB: new BN(1_000_000),
  durationSlots: new BN(40),
});

const blState = await client.getBloom(bloom);
await waitForSlot(connection, blState.endSlot.toNumber() + 1);

const sig = await client.settleBloom({ pool, bloom });

03 · Chirigiwa

Opens a long bloom and immediately exits via chirigiwa, paying the 5% principal penalty.

tsexamples/03-chirigiwa.ts

const { bloom } = await client.createBloom({
  pool,
  amountA: new BN(1_000_000),
  amountB: new BN(1_000_000),
  durationSlots: new BN(1_000_000),
});

const sig = await client.chirigiwa({ pool, bloom });

edit on github ↗