I am using Kucoin SDK for .Net created by a third party, the problem I have is that the connections to the websockets are not constant, that is, they do not work 24/7, the documentation I found about it SDK is very limited.
This is how I am configuring the websockets client.
Cliente_Kucoin = new KucoinSocketClient(new Objects.KucoinSocketClientOptions()
{
ApiCredentials = new Objects.KucoinApiCredentials("xxxxxxxxxxxx", "xxxxxxxx", "xxxxx"),
AutoReconnect = true,
ReconnectInterval = TimeSpan.FromSeconds(5),
LogLevel = Microsoft.Extensions.Logging.LogLevel.Trace,
SocketSubscriptionsCombineTarget = 2
});
And so, I make the subscriptions to the sockets.
private async void Listener_Cryptos()
{
var BTC = await ClienteKucoin.Spot.SubscribeToTickerUpdatesAsync(BTC.Tickets, BTC.Trade);
var ETH = await ClienteKucoin.Spot.SubscribeToTickerUpdatesAsync(ETH.Tickets, ETH.Trade);
var BNB = await ClienteKucoin.Spot.SubscribeToTickerUpdatesAsync(BNB.Tickets, BNB.Trade);
var ADA = await ClienteKucoin.Spot.SubscribeToTickerUpdatesAsync(ADA.Tickets, ADA.Trade);
var XRP = await ClienteKucoin.Spot.SubscribeToTickerUpdatesAsync(XRP.Tickets, XRP.Trade);
}
Related
I am in the need of listing the users data belonging to a specific group within the organization. The documentation does not specify if this is possible. I was really hoping there could be some kind of query that would allow this. For example email in (1#domain.com,2#domain.com). However, I don't see that being possible. The only way I could think to accomplish this would be:
Get a list of all the members in the group (https://developers.google.com/admin-sdk/directory/reference/rest/v1/members/list)
Get each user data by email (https://developers.google.com/admin-sdk/directory/reference/rest/v1/users/get)
The problem with the above approach is that if a group contains 50+ members, this means that I have to make all that amount of requests, which is counter productive. Imagine how long that would take.
Any ideas? Greatly appreciate it.
Unfortunately I don’t think you can skip this two step process, but you can speed it up using batch requests. This
allows you to request up to 1000 calls in a single request. The steps would be:
Make a batch request to get all the members of all the groups you want (using members.list).
Make a batch request to get all the user info that you need using their id (using user.get).
Notice that the data in the result won’t be sorted, but they will be tagged by Content-ID.
References
Sending Batch Requests (Directory API)
Method: members.list (Directory API)
Method: users.get (Directory API)
I thought about the batching request a couple of hours after I posted the question. The problem with Node JS is that it does not has built in support for batch requests, unlike the php client library for example; Therefore, I had to spent some time implementing support for it on my own since I was not able to find any example. I'll share the solution in case it helps someone else or for my future reference.
async function getGroupMembersData(){
const groupEmail = "group#domain.com"; //google group email
const groupMembers = await getGroupMembers(groupEmail).catch(error=>{
console.error(`Error querying group members: ${error.toString()}`);
});
if(!groupMembers){ return; }
const url = "https://www.googleapis.com/batch/admin/directory_v1";
const scopes = ["https://www.googleapis.com/auth/admin.directory.user.readonly"];
const requests = [];
for(let i=0; i<groupMembers.length; ++i){
const user = groupMembers[i];
const request = {
email: user,
endpoint: `GET directory_v1/admin/directory/v1/users/${user}?fields=*`
};
requests.push(request);
}
const batchRequestData = await batchProcess(url, scopes, requests).catch(error=>{
console.error(`Error processing batch request: ${error.toString()}`);
});
if(!batchRequestData){ return; }
const usersList = batchRequestData.map(i=>{
return i.responseBody;
});
console.log(usersList);
}
//get group members using group email address
async function getGroupMembers(groupKey){
const client = await getClient(scopes); //function to get an authorized client, you have to implement on your own
const service = google.admin({version: "directory_v1", auth: client});
const request = await service.members.list({
groupKey,
fields: "members(email)",
maxResults: 200
});
const members = !!request.data.members ? request.data.members.map(i=>i.email) : [];
return members;
}
//batch request processing in groups of 100
async function batchProcess(batchUrl, scopes, requests){
const client = await getClient(scopes); //function to get an authorized client, you have to implement on your own
let results = [];
const boundary = "foobar99998888"; //boundary line definition
let batchBody = ""; const nl = "\n";
const batchLimit = 100; //define batch limit (max supported = 100)
const totalRounds = Math.ceil(requests.length / batchLimit);
let batchRound = 1;
let batchItem = 0;
let roundLimit = batchLimit;
do{
roundLimit = roundLimit < requests.length ? roundLimit : requests.length;
//build the batch request body
for(batchItem; batchItem<roundLimit; batchItem++){
const requestData = requests[batchItem];
batchBody += `--${boundary}${nl}`;
batchBody += `Content-Type: application/http${nl}`;
batchBody += `Content-Id: <myapprequest-${requestData.email}>${nl}${nl}`;
batchBody += `${requestData.endpoint}${nl}`;
}
batchBody += `--${boundary}--`;
//send the batch request
const batchRequest = await client.request({
url: batchUrl,
method: "POST",
headers: {
"Content-Type": `multipart/mixed; boundary=${boundary}`
},
body: batchBody
}).catch(error=>{
console.log("Error processing batch request: " + error);
});
//parse the batch request response
if(!!batchRequest){
const batchResponseData = batchRequest.data;
const responseBoundary = batchRequest.headers["content-type"].split("; ")[1].replace("boundary=", "");
const httpResponses = batchResponseParser(batchResponseData, responseBoundary);
results.push(...httpResponses);
}
batchRound++;
roundLimit += batchLimit;
} while(batchRound <= totalRounds);
return results;
};
//batch response parser
function batchResponseParser(data, boundary){
const nl = "\r\n";
data = data.replace(`--${boundary}--`,"");
const responses = data.split(`--${boundary}`);
responses.shift();
const formattedResponses = responses.map(i=>{
const parts = i.split(`${nl}${nl}`);
const responseMetaParts = (parts[0].replace(nl, "")).split(nl);
let responseMeta = {};
responseMetaParts.forEach(part=>{
const objectParts = part.split(":");
responseMeta[objectParts[0].trim()] = objectParts[1].trim();
});
const responseHeadersParts = parts[1].split(nl);
let responseHeaders = {};
responseHeadersParts.forEach(part=>{
if(part.indexOf("HTTP/1.1") > -1){
responseHeaders.status = part;
} else {
const objectParts = part.split(":");
responseHeaders[objectParts[0].trim()] = objectParts[1].trim();
}
});
const reg = new RegExp(`${nl}`, "g");
const responseBody = JSON.parse(parts[2].replace(reg, ""));
const formatted = {
responseMeta: responseMeta,
responseHeaders: responseHeaders,
responseBody: responseBody
};
return formatted;
});
return formattedResponses;
}
I am new to Xamarin Forms. I am building a chat App with Xamarin Forms and Signalr and I want to make the chat messages persistent just like WhatsApp. I'm using Akavache, but I don't seem to be succeeding. I have this code snippet in my ChatPage ViewModel
if(ChatMessageList.Count != 0)
{
var _messages = BlobCache.LocalMachine.GetObject<ChatMessage>("Messages");
ChatMessage chatMessage = new ChatMessage() { Message = _messages.Subscribe(x =>
chatmessage.Message = x.Message).ToString(), IsOwnMessage = isMe, IsSystemMessage = false,
ActionTime = _messages.Subscribe(x => chatmessage.ActionTime = x.ActionTime).ToString() };
ChatMessageList.Add(chatMessage);
MessagingCenter.Send(this, "SCROLL_BOTTOM");
}
else
{
ChatMessage chatMessage = new ChatMessage() { Message = message, IsOwnMessage = isMe,
IsSystemMessage = false, ActionTime = DateTime.Now.ToString("hh:mm tt") };
ChatMessageList.Add(chatmessage);
BlobCache.LocalMachine.InsertObject<ChatMessage>("Messages", chatMessage);
}
Now the chat messages are in system codes. Are can I go about this, please.
This qeuestion is on consuming the messages using AMQP in .Net. The documentation recommends amqpnetlite: https://access.redhat.com/documentation/en-us/red_hat_amq/7.0/html-single/using_the_amq_.net_client/index
On subscribing to an address using AMQPNetLite, the address and the queue will be auto-created. The auto-created queue is always "unicast" though. I have not been able to auto-create
a multicast queue
that allowed any number of consumers.
Code:
private async Task RenewSession()
{
Connect = await Connection.Factory.CreateAsync(new Address("amqp://admin:admin#localhost:5672"), new Open() {ContainerId = "client-1"});
MqSession = new Session(Connect);
var receiver = new ReceiverLink(MqSession, DEFAULT_SUBSCRIPTION_NAME, GetSource("test-topic"), null);
receiver.Start(100, OnMessage);
}
private Source GetSource(string address)
{
var source = new Source
{
Address = address,
ExpiryPolicy = new Symbol("never"),
Durable = 2,
DefaultOutcome = new Modified
{
DeliveryFailed = true,
UndeliverableHere = false
}
};
return source;
}
Maybe I am missing some flags?
in AMQP, you choose between autocreating a queue (anycast routing) or a topic (multicast routing) by setting a capability.
The capability should be either new Symbol("queue") or new Symbol("topic").
public class SimpleAmqpTest
{
[Fact]
public async Task TestHelloWorld()
{
Address address = new Address("amqp://guest:guest#localhost:5672");
Connection connection = await Connection.Factory.CreateAsync(address);
Session session = new Session(connection);
Message message = new Message("Hello AMQP");
Target target = new Target
{
Address = "q1",
Capabilities = new Symbol[] { new Symbol("queue") }
};
SenderLink sender = new SenderLink(session, "sender-link", target, null);
await sender.SendAsync(message);
Source source = new Source
{
Address = "q1",
Capabilities = new Symbol[] { new Symbol("queue") }
};
ReceiverLink receiver = new ReceiverLink(session, "receiver-link", source, null);
message = await receiver.ReceiveAsync();
receiver.Accept(message);
await sender.CloseAsync();
await receiver.CloseAsync();
await session.CloseAsync();
await connection.CloseAsync();
}
}
Have a look at https://github.com/Azure/amqpnetlite/issues/286, where the code comes from.
You can choose whether the default routing will be multicast or anycast by setting default-address-routing-type in broker.xml, everything documented at https://activemq.apache.org/artemis/docs/2.6.0/address-model.html
The broker's multicastPrefix and anycastPrefix feature is not implemented for AMQP. https://issues.jboss.org/browse/ENTMQBR-795
am faced with a challenge for some time now. I have a web service (asp.net web api), that consumes a certain api, after the consumption, my api will then send the consumed data to another external api. I use REST Sharp for my data serialization and request.
But anytime i send this request. I get a null result.
Anybody to help?
Sequel to my question above #igor, below is my code snippet
public object AccountOpening(JObject exRequest)
{
var Account = new AccountViewModel(exRequest.ToString());
Account.cifID = "null";
Account.AddrCategory = "Mailing";
Account.Country = "NG";
Account.HoldMailFlag = "N";
Account.PrefAddr = "Y";
Account.Language = "UK (English)";
Account.IsMinor = "N";
Account.IsCustNRE = "N";
Account.DefaultAddrType = "Mailing";
Account.Occupation = "OTH";
Account.PhoneEmailType = "CELLPH";
var serviceAPI = ConfigurationManager.AppSettings["RemoteAPI"];
var request = new RestSharp.Serializers.Newtonsoft.Json.RestRequest();
request.AddParameter("application/json", Account, ParameterType.RequestBody);
request.RequestFormat = DataFormat.Json;
request.Method = Method.POST;
request.JsonSerializer = new RestSharp.Serializers.JsonSerializer();
var client = new RestClient(serviceAPI);
IRestResponse resp = client.Post(request);
if (resp.IsSuccessful==true)
{
return Json(new {resp.Content });
}
}
I am currently in the process of developing a Windows 8 (Windows Store) app that connects to a sharepoint site using the REST interface. Currently, I have successfully managed to pull down list data from the _vti_bin/ListData.svc/ uri. However, I am stuck on creating new list items from within the app, and Posting these back into sharepoint.
I am trying to use an HTTP POST method, however am receiving a 405 error code: MethodNotAllowed. Below is my code:
HttpClientHandler clientHandler = new HttpClientHandler();
clientHandler.UseDefaultCredentials = true;
HttpClient newClient = new HttpClient(clientHandler);
// HttpResponseMessage response = newClient.PostAsync("http://sharepoint/.../_vti_bin/ListData.svc/Nominations", test);
var resp = await newClient.GetAsync(newUri("http://sharepoint/.../_vti_bin/ListData.svc/Nominations"));
using (newClient)
using (var ms = new MemoryStream())
{
var djs = new DataContractJsonSerializer(typeof(NominationsItem));
djs.WriteObject(ms, test);
ms.Position = 0;
var sc = new StreamContent(ms);
sc.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");
resp = test == null
? await newClient.PutAsync(new Uri("http://sharepoint/.../_vti_bin/ListData.svc/Nominations"), sc)
: await newClient.PostAsync(new Uri("http://sharepoint.../_vti_bin/ListData.svc/Nominations"), sc);
resp.EnsureSuccessStatusCode();
}
Any help would be appreciated!