maintain nonce for users

[0xmountaintop]

[lispc]

in restapi or matchengine? Do we need to add this feature in our first demo version?

[0xmountaintop]

for demo, no.

But for L2 transfer/withdraw we need to sign the nonce.

[0xmountaintop]

BTW we also need to maintain "last_order_id" for user. so that he can sign

OrderInput
...
  hash(): bigint {
    // although there is no 'TxType.PlaceOrder' now, we can see it as a 'SignType'
    let data = hash([TxType.PlaceOrder, this.orderId, this.tokenSell, this.tokenBuy, this.totalSell, this.totalBuy]);
    //data = hash([data, accountID, nonce]);
    // nonce and orderID seems redundant?
    data = hash([data, this.accountID]);
    return data;
  }
  signWith(account: Account) {
    this.sig = account.signHash(this.hash());
  }