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README.md docs: run prettify and move h1 to h2 1 year ago

README.md

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

Notions