shared/lib/services/ConfigService.dart

// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import 'dart:convert';
import 'package:http/http.dart' as http;
import 'package:yaml/yaml.dart';

class ConfigService {
  /// Returns config document
  ///
  /// [configUrl]
  Future<Map<String, dynamic>> getJson(String configUrl,
      [http.Client? client]) async {
    client ??= http.Client();

    var response = await client
        .get(Uri.parse(configUrl))
        .timeout(const Duration(seconds: 30));

    var config = response.body;

    if (configUrl.endsWith(".yaml")) {
      var yamlDoc = loadYaml(response.body);
      config = json.encode(yamlDoc);
    }

    return json.decode(config);
  }
}