Kartverket API for vasstandsdata

fetch.js

import { xml2json } from "xml-js";

const station = async ({ latitude, longitude }) => {
  const req = `https://api.sehavniva.no/tideapi.php?${new URLSearchParams({
    lat: latitude,
    lon: longitude,
    datatype: "obs",
    refcode: "cd",
    interval: 60,
    dst: 0,
    tzone: 0,
    place: "",
    file: "",
    lang: "nn",
    tide_request: "locationdata",
    fromtime: new Date(Date.now() - 2 * 60 * 60 * 1000)
      .toISOString()
      .slice(0, 16),
    totime: new Date().toISOString(-60 * 60 * 1000).slice(0, 16),
  })}`;
  const measure = JSON.parse(xml2json(await (await fetch(req)).text()));
  return measure.elements[0].elements[0].elements[2].elements.map(
    ({ attributes }) => attributes
  );
};

/**
 * {
    name: 'Sirevåg',
    code: 'SIE',
    latitude: '58.505200',
    longitude: '5.791602',
    type: 'PERM'
  }[]
 */
const stations = async () => {
  const stationsXML = await (
    await fetch(
      "https://api.sehavniva.no/tideapi.php?type=perm&tide_request=stationlist"
    )
  ).text();
  const stationsJSON = JSON.parse(
    xml2json(stationsXML, { compact: true, spaces: 4 })
  );
  /**
   *
   */
  const stations = stationsJSON.tide.stationinfo.location.map(
    ({ _attributes }) => _attributes
  );
  return stations;
};

for (const s of await stations()) {
  console.log(s);
  console.log(await station(s));
  break;
}

stations.txt

ANX
BGO
BOO
BRJ
HFT
HAR
HEI
HRO
HVG
KAB
KSU
LEH
MSU
MAY
NVK
NYA
OSC
OSL
RVK
SBG
SIE
SOY
SVG
TRG
TOS
TRD
TAZ
VAW
VIK
AES