cake_wallet/lib/twitter/twitter_api.dart

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import 'dart:convert';
import 'package:cake_wallet/.secrets.g.dart' as secrets;
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import 'package:cake_wallet/twitter/twitter_user.dart';
import 'package:http/http.dart' as http;
class TwitterApi {
static const twitterBearerToken = secrets.twitterBearerToken;
static const httpsScheme = 'https';
static const apiHost = 'api.twitter.com';
static const userPath = '/2/users/by/username/';
static Future<TwitterUser> lookupUserByName({required String userName}) async {
final queryParams = {
'user.fields': 'description,profile_image_url',
'expansions': 'pinned_tweet_id',
'tweet.fields': 'note_tweet'
};
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final headers = {'authorization': 'Bearer $twitterBearerToken'};
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final uri = Uri(
scheme: httpsScheme,
host: apiHost,
path: userPath + userName,
queryParameters: queryParams);
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final response = await http.get(uri, headers: headers).catchError((error) {
throw Exception('HTTP request failed: $error');
});
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if (response.statusCode != 200) {
throw Exception('Unexpected http status: ${response.statusCode}');
}
final Map<String, dynamic> responseJSON = jsonDecode(response.body) as Map<String, dynamic>;
if (responseJSON['errors'] != null &&
!responseJSON['errors'][0]['detail']
.toString()
.contains("Could not find tweet with pinned_tweet_id")) {
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throw Exception(responseJSON['errors'][0]['detail']);
}
return TwitterUser.fromJson(responseJSON, _getPinnedTweet(responseJSON));
}
static Tweet? _getPinnedTweet(Map<String, dynamic> responseJSON) {
try {
final tweetId = responseJSON['data']['pinned_tweet_id'] as String?;
if (tweetId == null || responseJSON['includes'] == null) return null;
final tweetIncludes = List.from(responseJSON['includes']['tweets'] as List);
final pinnedTweetData = tweetIncludes.firstWhere(
(tweet) => tweet['id'] == tweetId,
orElse: () => null,
) as Map<String, dynamic>?;
if (pinnedTweetData == null) return null;
final pinnedTweetText =
(pinnedTweetData['note_tweet']?['text'] ?? pinnedTweetData['text']) as String;
return Tweet(id: tweetId, text: pinnedTweetText);
} catch (e) {
return null;
}
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}
}