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1010 B
1010 B
Retrieve transaction value
Instructions
Targeting a local bitcoin node, create a function retrieveTransactionValue() that takes as input a hash of a simple transaction, and returns the total value transferred in this transaction in bitcoins. If several outputs are sent, the value should be summed up.
The Bitcoin node RPC interface is expected to be running with the following parameters:
rpcallowip=127.0.0.1
rpcport=18443
rpcuser=leeloo
rpcpassword=multipass
Usage
const { retrieveTxValue } = require('./retrieveTransactionValue.js')
retrieveTxValue(
'd030023d96b9170af9ec2fe5d9b62a5eacbcbf144c68f3f45d68bca72d1d3649',
) // Expected : 50
Hint
Internally, Bitcoin uses satoshis, 1 satoshi = 10^-8 bitcoin