January 2020
Intermediate to advanced
530 pages
11h 11m
English
Content preview from Blockchain Development for Finance Projects
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Building a method to read MTH and FTH from the blockchain
The pRead() method fetches the last MTH and FTH from the blockchain and compares them with the current MTH (ModTH) and FTH (FileTH):
- It takes the time at which the hash has recorded on the blockchain (dateTime), the current MTH of the directory (ModTH), and the current FTH of the directory (FileTH) as input parameters.
- We start the pRead() method by first defining the wallet object and connecting to the gateway in a similar way to the last two functions:
async function pRead (dateTime,ModTH,FileTH) { try { const wallet = new FileSystemWallet('/home/ishan/docsapp/wallet'); const userExists = await wallet.exists('user1'); if (!userExists) { console.log('An identity for the user "user1" ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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