BigchainDB JavaScript Driver

Features

• Support for preparing, fulfilling, and sending transactions to a BigchainDB node.
• Retrieval of transactions by id.
• Getting status of a transaction by id.

Compatibility Matrix

BigchainDB Server	BigchainDB Javascript Driver
0.10	0.1.x
1.0	0.3.x
1.3	3.x.x

Older versions

For versions below 3.2, a transfer transaction looked like:

const createTranfer = BigchainDB.Transaction.makeTransferTransaction(
    txCreated,
    metadata, [BigchainDB.Transaction.makeOutput(
        BigchainDB.Transaction.makeEd25519Condition(alice.publicKey))],
    0
)

const signedTransfer = BigchainDB.Transaction.signTransaction(createTranfer,
        keypair.privateKey)

In order to upgrade and do it compatible with the new driver version, this transaction should be now:

const createTranfer = BigchainDB.Transaction.makeTransferTransaction(
        [{ tx: txCreated, output_index: 0 }],
        [aliceOutput],
        metaData
)

const signedTransfer = BigchainDB.Transaction.signTransaction(createTranfer,
        keypair.privateKey)

The upgrade allows to create transfer transaction spending outputs that belong to different transactions. So for instance is now possible to create a transfer transaction spending two outputs from two different create transactions:

const createTranfer = BigchainDB.Transaction.makeTransferTransaction(
        [{ tx: txCreated1, output_index: 0 },
                M{ tx: txCreated2, output_index: 0}],
        [aliceOutput],
        metaData
)

const signedTransfer = BigchainDB.Transaction.signTransaction(createTranfer,
        keypair.privateKey)