Core concepts
The Dash Core Developer Guide will answer most of the questions about the fundamentals of Dash.
However, some elements provided by the SDK need to be grasped, so we will quickly cover some of those.
Wallet
At the core of Dash is the Payment Chain, in order to be able to transact on it, one needs to have a set of UTXO that is controlled by a Wallet instance.
In order to access your UTXO, you will have to provide a valid mnemonic that will unlock the Wallet and automatically fetch the associated UTXOs.
Wallet accounts
Since the introduction of deterministic wallet, a Wallet is actually composed of multiple account.
For manipulating multiple accounts, Wallet.getAccount() takes optional options where index allows either accessing or creating a specific account index.
Instantiation types
A Wallet instance can be created from multiples types, which impact how much the Wallet can do.
In general, we expect you to initialize from a mnemonic or an seed (HD seed) or an HDPrivateKey, which allows wallet-lib to deal with HD Wallet (deterministic wallet).
In some other cases, you might want to instantiate Wallet from another input such as :
- privateKey: This allows managing a single privateKey/publicKey set. Therefore, you will only have a single unique address to receive money.
- HDPublicKey: This allows a "watch-only" mode. You won't be able to spend anything, but this will allow you to track and monitor in real-time the address set of this public key. This allows you to derive unique unused addresses from a single key (shared by another user, third-party merchant).