esri-geocoder engine

geocode-ahead.js

// build the esri geocoder bloodhound engine
var esriBH = new Bloodhound({
    name: "esri-geocoder",
    datumTokenizer: function (d) {
        return Bloodhound.tokenizers.whitespace(d.name);
    },
    queryTokenizer: Bloodhound.tokenizers.whitespace,
    remote: {
        //https://developers.arcgis.com/rest/geocode/api-reference/geocoding-suggest.htm
        // use the searchExtent parameter to limit the results to roughly washington state
        url: config.arcgisGeocodingBaseUrl +
        "suggest?text=%QUERY&searchExtent=-125,49,-116.9,45.5&f=json",
        filter: function (data) {
            return $.map(data.suggestions, function (result) {
                //typically this is a category or type of business (e.g. coffee shops)
                if(result.isCollection === false) {
                    return {
                        name: result.text,
                        magicKey: result.magicKey,
                        source: "esri-geocoder"
                    };
                }
            });
        },
        ajax: {
            beforeSend: function (jqXhr, settings) {
                $("#search-loading-icon").addClass("search-loading");
            },
            complete: function (jqXHR, status) {
                $("#search-loading-icon").removeClass("search-loading");
            }
        }
    },
    limit: 5
});
esriBH.initialize();