Fetch latest checked in information using TfvcHttpClient Class - tfs

Question

Trying to fetch latest checked in information using TfvcHttpClient class from a specific folder in Team Foundation Server using its client API from a console application.
Please help how can I achieve it? I have personal access token and below mentioned is able to connect by using it:
Code:
string uri = _uri;
string personalAccessToken = _personalAccessToken;
string project = _project;
string credentials = Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes(string.Format("{0}:{1}", "", personalAccessToken)));
//create wiql object
var wiql = new
{
query = "Select [State], [Title] " +
"From WorkItems " +
"Where [Work Item Type] = 'Bug' " +
"And [System.TeamProject] = '" + project + "' " +
"And [System.State] <> 'Closed' " +
"Order By [State] Asc, [Changed Date] Desc"
};
using (var client = new HttpClient())
{
client.BaseAddress = new Uri(uri);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", credentials);
//serialize the wiql object into a json string
var postValue = new StringContent(JsonConvert.SerializeObject(wiql), Encoding.UTF8, "application/json"); //mediaType needs to be application/json for a post call
//send query to REST endpoint to return list of id's from query
var method = new HttpMethod("POST");
var httpRequestMessage = new HttpRequestMessage(method, uri + "/_apis/wit/wiql?api-version=2.2") { Content = postValue };
var httpResponseMessage = client.SendAsync(httpRequestMessage).Result;
}
I have tried below mentioned code for achieving:
VssConnection connection = new VssConnection(serverUrl, new
VssBasicCredential(string.Empty, _personalAccessToken));
var buildServer = connection.GetClient<BuildHttpClient>(); // connect to the build server subpart
var sourceControlServer = connection.GetClient<Microsoft.TeamFoundation.SourceControl.WebApi.TfvcHttpClient>(); // connect to the TFS source control subpart
var changesets = buildServer.GetChangesBetweenBuildsAsync("client-rsa", 1, 5).Result;
foreach (var changeset in changesets)
{
var csDetail = sourceControlServer.GetChangesetAsync("client-rsa", Convert.ToInt32(changeset.Id.Replace("C", string.Empty).Trim()), includeDetails: true).Result;
var checkinNote = csDetail.CheckinNotes?.FirstOrDefault(_ => _.Name == "My check-in note");
if (checkinNote != null)
{
Console.WriteLine("{0}: {1}", changeset.Id, changeset.Message);
Console.WriteLine("Check-in note: {0}", checkinNote.Value);
}
else
Console.WriteLine("Warning: {0} has no check-in note", changeset.Id);
}

Answer 1

Here is the simple sample code which use TfvcHttpClient to get the latest changeset information:
string purl = "https://xxx.visualstudio.com";
string projectname = "projectname";
VssCredentials creds = new VssClientCredentials();
creds.Storage = new VssClientCredentialStorage();
VssConnection vc = new VssConnection(new Uri(purl),creds);
TfvcHttpClient thc = vc.GetClient<TfvcHttpClient>();
TfvcChangesetSearchCriteria tcsc = new TfvcChangesetSearchCriteria();
//Specify the server path of the folder
tcsc.ItemPath = "$/XXXX/XXXX";
//Get the entire history of the specified path
List<TfvcChangesetRef> changerefs = thc.GetChangesetsAsync(projectname,null,null,null,null,tcsc).Result;
//Get the latest changeset ref
TfvcChangesetRef changeref = changerefs.First();
//Get the changeset
TfvcChangeset changeset = thc.GetChangesetAsync(projectname,changeref.ChangesetId).Result;
//Get the detailed changes
List<TfvcChange> changes = thc.GetChangesetChangesAsync(changeref.ChangesetId).Result;
foreach (TfvcChange cg in changes)
{
//Code to read detail information
}