public async Task JoinGroup(string groupName)
{
//calling Join group API
ChatUserGroupModel joinGroup = new ChatUserGroupModel();
joinGroup.Group = groupName;
joinGroup.User = Context.GetHttpContext().Request.Query["UserName"];
var joinGroupPayload = JsonConvert.SerializeObject(joinGroup);
// Wrap our JSON inside a StringContent which then can be used by the HttpClient class
var joinGrouphttpContent = new StringContent(joinGroupPayload, Encoding.UTF8, "application/json");
var joineGroupUri = new Uri(string.Format(joinGroupUrl, string.Empty));
HttpClient joinGroupClient = new HttpClient();
var joinGroupResponse = await joinGroupClient.PostAsync(joineGroupUri, joinGrouphttpContent);
if (joinGroupResponse.IsSuccessStatusCode)
{
var contentResult = await joinGroupResponse.Content.ReadAsStringAsync();
var responseMessage = JsonConvert.DeserializeObject <APIMessageResponse>(contentResult);
if (responseMessage.Message.StartsWith("error"))
{
await Clients.Caller.SendAsync("DisplayError", responseMessage.Message);
}
else
{
await Groups.AddToGroupAsync(Context.ConnectionId, groupName);
//await Clients.Group(groupName).SendAsync("Send", $"{Context.ConnectionId} has joined the group {groupName}.");
await Clients.Group(groupName).SendAsync("SendToGroup", $"{Context.GetHttpContext().Request.Query["UserName"]} is now online {groupName}.", groupName, groupName);
await Clients.Caller.SendAsync("JoinGroupTab", groupName);
//calling get group messages API
getGroupMessagesUrl = getGroupMessagesUrl + groupName;
var groupMessageUri = new Uri(string.Format(getGroupMessagesUrl, string.Empty));
HttpClient getGroupMessagesClient = new HttpClient();
var getGroupMessagesResponse = await getGroupMessagesClient.GetAsync(groupMessageUri);
var messagesContent = await getGroupMessagesResponse.Content.ReadAsStringAsync();
IEnumerable <ChatMessageModel> groupMessagesVM = await Task.Run(() => JsonConvert.DeserializeObject <IEnumerable <ChatMessageModel> >(messagesContent.ToString()));
foreach (ChatMessageModel msgVM in groupMessagesVM)
{
await Clients.Caller.SendAsync("PopulateMyGroupMessage", msgVM.GroupName, msgVM.SenderName, msgVM.Content);
}
}
}
}
public async Task RemoveFromGroup(string groupName)
{
await Groups.RemoveFromGroupAsync(Context.ConnectionId, groupName);
await Clients.Group(groupName).SendAsync("SendToGroup", $"{Context.ConnectionId} has left the group {groupName}.", groupName, groupName);
//calling remove from group API
ChatUserGroupModel userGroup = new ChatUserGroupModel();
userGroup.Group = groupName;
userGroup.User = Context.GetHttpContext().Request.Query["UserName"];
var userGroupPayload = JsonConvert.SerializeObject(userGroup);
// Wrap our JSON inside a StringContent which then can be used by the HttpClient class
var userGrouphttpContent = new StringContent(userGroupPayload, Encoding.UTF8, "application/json");
var leaveGroupUri = new Uri(string.Format(leavGroupUrl, string.Empty));
HttpClient leaveGroupClient = new HttpClient();
var leaveGroupResponse = await leaveGroupClient.PostAsync(leaveGroupUri, userGrouphttpContent);
}
