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))
}
})