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Add getMultipleMangoAccounts to MangoClient class #92

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Add getMultipleMangoAccounts to MangoClient class #92

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61 changes: 61 additions & 0 deletions src/client.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3164,6 +3164,67 @@ export class MangoClient {
return this.getAllMangoAccounts(mangoGroup, filters, includeOpenOrders);
}

/**
* Get multiple MangoAccounts given a list of mango account public keys
*/
async getMultipleMangoAccounts(
mangoGroup: MangoGroup,
mangoAccountPks: PublicKey[],
includeOpenOrders = true,
): Promise<MangoAccount[]> {

const mangoAccounts = await getMultipleAccounts(
this.connection,
mangoAccountPks,
).then((accounts) =>
accounts.map(({ publicKey, accountInfo }) => {
return new MangoAccount(
publicKey,
MangoAccountLayout.decode(
accountInfo == null ? undefined : accountInfo.data,
),
);
}),
);

if (includeOpenOrders) {
const openOrderPks = mangoAccounts
.map((ma) => ma.spotOpenOrders.filter((pk) => !pk.equals(zeroKey)))
.flat();

const openOrderAccountInfos = await getMultipleAccounts(

@mschneider mschneider Jun 8, 2022

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there's a limit of how many open orders you can request at once using gMA, i think it's 100 or 200. could you add here a loop that processes the requests in reasonable batch sizes?

this.connection,
openOrderPks,
);

const openOrders = openOrderAccountInfos.map(
({ publicKey, accountInfo }) =>
OpenOrders.fromAccountInfo(
publicKey,
accountInfo,
mangoGroup.dexProgramId,
),
);

const pkToOpenOrdersAccount = {};
openOrders.forEach((openOrdersAccount) => {
pkToOpenOrdersAccount[openOrdersAccount.publicKey.toBase58()] =
openOrdersAccount;
});

for (const ma of mangoAccounts) {
for (let i = 0; i < ma.spotOpenOrders.length; i++) {
if (ma.spotOpenOrders[i].toBase58() in pkToOpenOrdersAccount) {
ma.spotOpenOrdersAccounts[i] =
pkToOpenOrdersAccount[ma.spotOpenOrders[i].toBase58()];
}
}
}
}

return mangoAccounts;
}

async getAllMangoAccounts(
mangoGroup: MangoGroup,
filters?: any[],
Expand Down