new Promise((resolve, reject) => {
const txLocal = localStorage.getItem(txId)
if (txLocal) {
resolve(JSON.parse(txLocal))
} else {
let txFetched
let blockFetched
conn.getTransaction(txId)
.then(tx => {
txFetched = tx
return conn.listBlocks(txId)
})
.then(block => {
blockFetched = block
return conn.listVotes(block[0])
})
.then(votes => {
txFetched = {
...txFetched,
block: blockFetched,
votes
}
localStorage.setItem(txId, JSON.stringify(txFetched))
resolve(txFetched)
})
.catch(reason => reject(reason))
}
})
export const publish = (publicKey, privateKey, payload, metadata) => {
// Create a transation
const tx = driver.Transaction.makeCreateTransaction(
payload,
metadata,
[
driver.Transaction.makeOutput(
driver.Transaction.makeEd25519Condition(publicKey))
],
publicKey
)
// sign/fulfill the transaction
const txSigned = driver.Transaction.signTransaction(tx, privateKey)
// send it off to BigchainDB
return conn.postTransaction(txSigned)
.then(() => conn.pollStatusAndFetchTransaction(txSigned.id))
.then(() => txSigned)
}
export const transfer = (tx, fromPublicKey, fromPrivateKey, toPublicKey, metadata) => {
const txTransfer = driver.Transaction.makeTransferTransaction(
tx,
metadata,
[
driver.Transaction.makeOutput(
driver.Transaction.makeEd25519Condition(toPublicKey)
)
],
0
)
const txTransferSigned = driver.Transaction.signTransaction(txTransfer, fromPrivateKey)
// send it off to BigchainDB
return conn.postTransaction(txTransferSigned)
.then(() =>
conn.pollStatusAndFetchTransaction(txTransferSigned.id))
.then(() => txTransferSigned)
}
export const listTransactions = (assetId) =>
conn.listTransactions(assetId)
.then((txList) => {
if (txList.length <= 1) {
return txList
}
const inputTransactions = []
txList.forEach((tx) =>
tx.inputs.forEach(input => {
if (input.fulfills) {
inputTransactions.push(input.fulfills.transaction_id)
}
})
)
const unspents = txList.filter((tx) => inputTransactions.indexOf(tx.id) === -1)
if (unspents.length) {
let tipTransaction = unspents[0]
let tipTransactionId = tipTransaction.inputs[0].fulfills.transaction_id
const sortedTxList = []
while (true) { // eslint-disable-line no-constant-condition
sortedTxList.push(tipTransaction)
try {
tipTransactionId = tipTransaction.inputs[0].fulfills.transaction_id
} catch (e) {
break
}
if (!tipTransactionId) {
break
}
tipTransaction = txList.filter((tx) => // eslint-disable-line no-loop-func
tx.id === tipTransactionId)[0]
}
return sortedTxList.reverse()
} else {
console.error('something went wrong while sorting transactions',
txList, inputTransactions)
}
return txList
})
.then(block => {
blockFetched = block
return conn.listVotes(block[0])
})
.then(tx => {
txFetched = tx
return conn.listBlocks(txId)
})
export const getUnspents = (publicKey, spent = undefined, callback) => // eslint-disable-line no-unused-vars
conn.listOutputs(publicKey, spent)
.then(unspents => unspents.map(elem => elem.transaction_id))
.then(() => conn.pollStatusAndFetchTransaction(txSigned.id))
export const searchAssets = (search) =>
conn.searchAssets(search)
.then(assetList => assetList.map(asset => asset.id))