hk-bus-eta/esm/nlb.js

Query the ETA (Estimated Time of Arrival) of HK Bus/Minibus/MTR/Lightrail

import { isSafari } from "./utils";
export default function fetchEtas({ stopId, nlbId, language, }) {
    return fetch(`https://rt.data.gov.hk/v2/transport/nlb/stop.php?action=estimatedArrivals&routeId=${nlbId}&stopId=${stopId}&language=${language}`, {
        cache: isSafari ? "default" : "no-store",
    })
        .then((response) => response.json())
        .then(({ estimatedArrivals, message }) => {
        const outputs = (estimatedArrivals !== null && estimatedArrivals !== void 0 ? estimatedArrivals : [])
            .filter((eta) => eta.estimatedArrivalTime)
            .map((e) => {
            const isScheduled = e.departed !== "1" || e.noGPS === "1";
            return {
                eta: e.estimatedArrivalTime.replace(" ", "T") + ".000+08:00",
                remark: {
                    zh: isScheduled ? "預定班次" : "",
                    en: isScheduled ? "Scheduled" : "",
                },
                dest: {
                    // e.g. 經: 梅窩舊墟
                    // e.g. Via: Mui Wo Old Town
                    zh: language === "zh" ? e.routeVariantName : "",
                    en: language === "en" ? e.routeVariantName : "",
                },
                co: "nlb",
            };
        });
        if (outputs.length === 0) {
            if (message && typeof message === "string") {
                return [
                    {
                        eta: "",
                        remark: {
                            zh: language === "zh" ? message : "",
                            en: language === "en" ? message : "",
                        },
                        dest: {
                            zh: "",
                            en: "",
                        },
                        co: "nlb",
                    },
                ];
            }
        }
        return outputs;
    });
}
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