index.js

const crypto = require('crypto');
const url = require('url');
const querystring = require('query-string');
const got = require('got');

const secret = 'XXX'; // 秘钥
const publicKey = 'XXX'; // 公钥

// 心知 V4 接口签名
function signature(urlString, paramsObj) {
  if (!urlString) {
    return;
  }
  const obj = url.parse(urlString, true, true);
  const params = Object.assign({}, paramsObj, obj.query);
  let result = querystring.stringify(params, { encode: false });
  let encodeResult = querystring.stringify(params, { encode: true });

  const sig = crypto
    .createHmac('sha1', secret)
    .update(result, 'utf8')
    .digest('base64');

  result += `&sig=${encodeURIComponent(sig)}`;
  encodeResult += `&sig=${encodeURIComponent(sig)}`;
  console.log('浏览器访问链接: ', `${obj.protocol}//${obj.host}${obj.pathname}?${encodeResult}`);

  return result;
}

async function precipMinutely() {
  const ts = Math.round(Date.now() / 1000);
  const ttl = 600;
  const latitude = 29.5617;
  const longitude = 120.0962;

  let url = 'https://api.seniverse.com/v4?fields=precip_minutely';
  const query = signature(url, {
    ttl, ts,
    public_key: publicKey,
    locations: `${latitude}:${longitude}`,
  });

  const rsp = await got.get(url, {
    responseType: 'json',
    searchParams: query
  }).catch(err => {
    console.log(err);
  });

  console.log('url', url);
  console.log('query', query);
  console.log('success:', JSON.stringify(rsp.body));
}


async function typhoonList() {
  const ts = Math.round(Date.now() / 1000);
  const ttl = 600;

  let url = 'https://api.seniverse.com/v4?fields=typhoon_list';
  const query = signature(url, {
    ttl, ts,
    public_key: publicKey,
    year: 2021,
    active: 1,
  });

  const rsp = await got.get(url, {
    responseType: 'json',
    searchParams: query
  }).catch(err => {
    console.log(err);
  });

  console.log('success:', JSON.stringify(rsp.body));
}


precipMinutely();
// typhoonList();