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Merge master into develop #1744

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Jan 18, 2024
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Merge master into develop #1744

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2 changes: 2 additions & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
# Next version

- Upgrade `examples/tutorials/on-the-fly-offer.js` to new Mangrove core protocol and SDK

# 2.0.4

- Upgrade to @mangrovedao/mangrove-deployments v2.0.0
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16 changes: 10 additions & 6 deletions examples/tutorials/on-the-fly-offer.js
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Expand Up @@ -11,32 +11,36 @@ const wallet = new ethers.Wallet(process.env.PRIVATE_KEY, provider); // Use eith
// Connect the API to Mangrove
const mgv = await Mangrove.connect({ signer: wallet });

// Connect mgv to a DAI, USDC market
const market = await mgv.market({ base: "DAI", quote: "USDC" });
// Connect mgv to a USDC, USDT market
const market = await mgv.market({
base: "USDC",
quote: "USDT",
tickSpacing: 1,
});

// Check it's live, should display the best bids and asks of the DAI, USDC market
// Check it's live, should display the best bids and asks of the USDC, USDT market
market.consoleAsks();
market.consoleBids();

// Create a simple liquidity provider on `market`, using `wallet` as a source of liquidity
const directLP = await mgv.liquidityProvider(market);

// In order to post an ask, signer needs to approve Mangrove for transfer of base token (DAI) which
// In order to post an ask, signer needs to approve Mangrove for transfer of base token (USDT) which
// will be transferred from the wallet to Mangrove and then to the taker when the offer is taken.
const tx = await market.base.approve(mgv.address, { amount: 100.4 });
await tx.wait();

// Query mangrove to know the bounty for posting a new Ask on `market`
const provision = await directLP.computeAskProvision();

// Post a new ask (requesting 100.5 USDC for 100.4 DAI) at a price of 100.5/100.4~=1.00099
// Post a new ask (requesting 100.5 USDC for 100.4 USDT) at a price of 100.5/100.4~=1.00099
// Consider looking at the consoleAsks above and increase gives such that the offer becomes visible in this list
const { id: offerId } = await directLP.newAsk({
wants: 100.5,
gives: 100.4,
fund: provision,
});

// Check the order was posted (or look at https://testnet.mangrove.exchange)
// Check the order was posted (or look at https://testnet.mangrove.exchange, if you're not working locally)
console.log(offerId);
market.consoleAsks();
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