如何从使用LINQ的用户那里获得更多的推文
本文关键字：那里 用户 LINQ | 更新日期: 2023-09-27 18:08:58
它清楚地表明它允许每个人最多获得3200条tweet(参见文档)。但是使用下面的代码:
var statusTweets =
from tweet in twitterCtx.Status
where tweet.Type == StatusType.User
&& tweet.ScreenName == "JoeMayo"
select tweet;
statusTweets.ToList().ForEach(
tweet => Console.WriteLine(
"Name: {0}, Tweet: {1}'n",
tweet.User.Name, tweet.Text));
它只给我前20条推文，你也不能使用这个代码应用光标移动。有没有人有一个LINQ到推特代码，允许我获取尽可能多的推文?
从Twitter中获取tweets有两种方法:
使用Hastag和ScreenName
我创建了一个自定义方法，您可以在一个请求中获得3200条tweet。
public void GetTwitterFeeds(dynamic settings, bool ishashtag, DateTime startDate, DateTime endDate)
{
string screenname = settings.socialFetchTerm.ToString();
var auth = new SingleUserAuthorizer
{
Credentials = new InMemoryCredentials
{
ConsumerKey = AppSettings.ConsumerKey,
ConsumerSecret = AppSettings.ConsumerSecret,
OAuthToken = AppSettings.AccessToken,
AccessToken = AppSettings.AccessTokenSecret
}
};
var twitterCtx = new TwitterContext(auth);
var ownTweets = new List<Status>();
ulong sinceId = 0;
ulong maxID = 0;
int lastStatusCount = 0;
bool flag = true;
var statusResponse = new List<Status>();
if (!ishashtag)
{
statusResponse = (from tweet in twitterCtx.Status
where tweet.Type == StatusType.User
&& tweet.ScreenName == screenname
&& tweet.Count == 200
&& (tweet.CreatedAt >= startDate && tweet.CreatedAt <= endDate)
select tweet).ToList();
}
else
{
statusResponse = (from search in twitterCtx.Search
where search.Type == SearchType.Search &&
search.Query == screenname
&& search.Count == 200
from Status status in search.Statuses
where (status.CreatedAt >= startDate && status.CreatedAt <= endDate)
select status
).ToList();
}
if (statusResponse.Count > 0)
{
maxID = ulong.Parse(statusResponse.First().StatusID);
ownTweets.AddRange(statusResponse);
}
do
{
int rateLimitStatus = twitterCtx.RateLimitRemaining;
if (rateLimitStatus != 0)
{
if (ishashtag)
{
statusResponse = (from search in twitterCtx.Search
where search.Type == SearchType.Search &&
search.Query == screenname
&& search.Count ==200
from Status status in search.Statuses
where
(status.CreatedAt >= startDate && status.CreatedAt <= endDate) &&
status.SinceID == sinceId && status.MaxID == maxID
select status
).ToList();
lastStatusCount = statusResponse.Count;
if (lastStatusCount != 0)
{
maxID = ulong.Parse(statusResponse.Last().StatusID) - 1;
ownTweets.AddRange(statusResponse);
}
else
{
flag = false;
}
}
else
{
statusResponse = (from tweet in twitterCtx.Status
where tweet.Type == StatusType.User
&& tweet.ScreenName == screenname
&& tweet.SinceID == sinceId && tweet.MaxID == maxID
&& tweet.Count == 200
&& (tweet.CreatedAt >= startDate && tweet.CreatedAt <= endDate)
select tweet).ToList();
lastStatusCount = statusResponse.Count;
if (lastStatusCount != 0)
{
maxID = ulong.Parse(statusResponse.Last().StatusID) - 1;
ownTweets.AddRange(statusResponse);
}
else
{
flag = false;
}
}
}
else
{
flag = false;
}
} while (flag);
foreach (var tweetStatus in ownTweets)
{
if (tweetStatus != null)
{
var socialSiteData = new SocialSitesData
{
// SocialType = SocialType.Twitter,
SocialType = settings.socialType,
SocialSubType = settings.socialSubType,
SocialFetchTerm = settings.socialFetchTerm,
PostId = tweetStatus.StatusID,
Post = tweetStatus.Text,
PostUrl = "https://twitter.com/" + tweetStatus.ScreenName + "/status/" + tweetStatus.StatusID,
ImageSource =
tweetStatus.Entities.MediaEntities.Count > 0
? tweetStatus.Entities.MediaEntities[0].MediaUrl
: "",
VideoSource =
tweetStatus.Entities.UrlEntities.Count > 0
? tweetStatus.Entities.UrlEntities[0].ExpandedUrl
: "",
PostTime = tweetStatus.CreatedAt,
};
if (!_socialHubCrudDal.IsSocialSiteDataExists(tweetStatus.StatusID))
_socialHubCrudDal.AddSocialSiteData(socialSiteData);
}
}
}
文档中说"获取授权用户最近的20个状态"。
您可能必须使用/发送额外的"参数/过滤器"- count如文档中提到的，其中声明"要返回的tweet数;这是一个可选字段，因此在您的情况下只返回前20名。
摘自@Rakesh Sadhula
public void GetTwitterFeeds(string screenName, DateTime startDate, DateTime endDate)
{
var twitterCtx = new TwitterContext(authorizer);
var ownTweets = new List<Status>();
ulong maxID = 0;
int lastStatusCount = 0;
bool flag = true;
var statusResponse = new List<Status>();
statusResponse = (from tweet in twitterCtx.Status
where tweet.Type == StatusType.User
&& tweet.ScreenName == screenName
&& tweet.Count == 200
&& (tweet.CreatedAt >= startDate && tweet.CreatedAt <= endDate)
select tweet).ToList();
if (statusResponse.Count > 0)
{
maxID = ulong.Parse(statusResponse.Last().StatusID.ToString());
ownTweets.AddRange(statusResponse);
}
if (ownTweets.Count == 200)
{
do
{
int rateLimitStatus = twitterCtx.RateLimitRemaining;
if (rateLimitStatus != 0)
{
statusResponse = (from tweet in twitterCtx.Status
where tweet.Type == StatusType.User
&& tweet.ScreenName == screenName
&& tweet.MaxID == maxID
&& tweet.Count == 200
&& (tweet.CreatedAt >= startDate && tweet.CreatedAt <= endDate)
select tweet).ToList();
lastStatusCount = statusResponse.Count;
if (lastStatusCount != 0)
{
maxID = ulong.Parse(statusResponse.Last().StatusID.ToString()) - 1;
ownTweets.AddRange(statusResponse);
}
else
{
flag = false;
}
}
else
{
flag = false;
}
} while (flag);
}
if (statusResponse.Count > 0)
{
foreach (Status tweet in ownTweets)
{
listTweets.Items.Add(tweet.Text);
}
lb_tUser.Text = "@" + screenName;
lb_tweeted.Text = statusResponse.Count.ToString();
}
}