Пример подключения подсказок DaData для typeahead.js

suggestions-typeahead.js

var address = new Bloodhound({
    datumTokenizer: Bloodhound.tokenizers.obj.whitespace('value'),
    queryTokenizer: Bloodhound.tokenizers.whitespace,
    remote :{
        url: 'https://suggestions.dadata.ru/suggestions/api/4_1/rs/suggest/address/',
        replace: function(url,q){
            this.ajax.data = '{ "query": "' + q + '" }';
            return url + '?q=' + q;
        },
        filter: function(resp){
            return resp.suggestions;
        },
        ajax: {
            type: 'POST',
            dataType: 'json',
            headers: {
                'Authorization': 'Token REPLACE_WITH_API_KEY',
                'Content-Type': 'application/json'
            }
        }
    }
});

address.initialize();

$('#remote .typeahead').typeahead(null, {
    name: 'address',
    displayKey: 'value',
    source: address.ttAdapter()
});