Small node.js snippet to query current monero difficulty from local daemon.

MoneroDiff.js

const axios = require('axios');
let header = '';
for (let block = 1685551; block < 1685704; block++) {
        axios.post('http://127.0.0.1:18081/json_rpc', '{"jsonrpc":"2.0","id":"0","method":"get_block_header_by_height","params":{"height":' + parseInt(block) + '}}').then(resp => {
                header = resp.data.result.block_header
                console.log(header.height + ', ' + header.timestamp + ', ' + header.difficulty)
        })
}