I am working on IBM MobileFirst client being android native app.
I have a weird issue I am writing the following code to initialize WLClient.
WLClient client = WLClient.createInstance(context);
client.connect(new WLResponseListener() {
#Override
public void onSuccess(WLResponse wlResponse) {
Log.d("Success--- MFP_connect",wlResponse.getResponseText());
}
#Override
public void onFailure(WLFailResponse wlFailResponse) {
Log.d("fail-- MFP_connect",wlFailResponse.getErrorMsg());
}
});
In My android Monitor I see a log saying
fail-- MFP_connect: The service is currently not available.
But when I am trying to push logs or analytics to the server. They are reaching the server successfully.
I am connecting to http enterprise server.
What could be the issue.
#rocky solved his issue by uninstalling the app and reinstalling. The device may have been caching the previous response.
Related
I have followed the guide from Microsoft for getting started with SignalR. This worked perfectly, and I was able to publish and deploy the application to IIS.
Now I need to communicate with the .NET application from another Windows process (specifically a Delphi program). What I want to do is to tell the .NET application to send SignalR message (i.e. invoke a method on all connected clients).
How can I accomplish this?
I'm not sure how the .NET application is being executed - does it have its own Windows process that I could send Windows messages to? Or would it be easier to send a local HTTP GET/POST request from the Delphi program to localhost? If so, how can I make the SignalR application handle it?
You can create a controller and inject the IHubContext<ChatHub>. Use the hub context to send message to clients.
public class MessageController : Controller
{
private readonly IHubContext<ChatHub> _hubContext;
public MessageController(IHubContext<MessageHub> hubContext)
{
_hubContext = hubContext;
}
[HttpPost]
public async Task<IActionResult> SendMessage([FromForm] string message)
{
await _hubContext.Clients.All.SendAsync("ReceiveMessage", message);
return Ok();
}
}
Then call this endpoint from your delphi app.
I run .NET core 3.1 app behind in Linux machine with Kestrel behind reverse proxy (Apache).
I constantly push some data to certain endpoint and then relay that data through signalR hub to users:
[HttpPut("{tagName}/live")]
[Authorize(Roles = "Datasource")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status400BadRequest)]
[ProducesResponseType(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[TypeFilter(typeof(TagControllerFilterAttribute))]
public async Task<IActionResult> PutLiveTag(Tag tag, string tagName)
{
bool status = await tagRepository.UpdateLiveData(tagName, tag);
if (status)
{
await tagHubContext.Clients.Group(tagName).SendAsync(tagName, tag);
return Ok();
}
return BadRequest();
}
Users joins and leaves that signalr hub by simply removing them from group:
public class TagDataHub : Hub
{
[HubMethodName("subscribe")]
public async Task JoinTagGroup(string tagName)
{
await Groups.AddToGroupAsync(Context.ConnectionId, tagName);
}
[HubMethodName("unsubscribe")]
public async Task LeaveTagGroup(string tagName)
{
await Groups.RemoveFromGroupAsync(Context.ConnectionId, tagName);
}
}
My app runs in deployment for few hours and then when I try use that app's API endpoints or anything related to that app I get 503 response from originated from Apache. I really don't know why Kestrel stops working...
When I run service dotnet-site status I get that app is still running.
I checked processes in server, I see that dotnet uses lots of resources, but apart from code provided above there is nothing else running in that app:
Please send help I really don't know how to debug/figure out this on linux server, I would value any suggestion.
I also looked this up and did exactly as this person, but it didn't help me: apache mpm worker
I'm developing an application that just connects to MFP 8.0 server but when I run the app using the MFP web simulator the log says "getCachedAccessToken for scope failed: undefined" . But when I run the same application using the emulator/device it works fine.
function wlCommonInit() {
WLAuthorizationManager.obtainAccessToken().then(
function () {
alert ("You are now connected to the server");
},
function(result) {
alert("Not able to connect: "+ JSON.stringify(result));
}
);
}
Is there any way to test the MFP server connection in the MFP web simulator?
This is a known limitation of the 8.0 release.
You can read more about it, here: http://engtest01w.francelab.fr.ibm.com:9090/support/knowledgecenter/SSHS8R_8.0.0/com.ibm.worklight.dev.doc/wl_studio_tools/topics/cmbswl.html
Tokens are part of the OAuth flow.
As a workaround, you can use a simulator.
I'm trying to monetize my app with Universal Windows. I followed the official tutorials but when I tried to load an interstitial ad, always I'm getting this errors:
Interstitial ad is not ready. With this error code: ClientConfiguration.
Failed to make http requestError. With this error code: NetworkConnectionFailure.
I don't know what I am missing.
This is my code:
public sealed partial class Myclass: Page {
InterstitialAd MyVideoAd;
public MyClass() {
this.InitializeComponent();
var MyAppId = "d25517cb-12d4-4699-8bdc-52040c712cab";
var MyAdUnitId = "11389925";
MyVideoAd = new InterstitialAd();
MyVideoAd.ErrorOccurred += MyVideoAd_ErrorOccurred;
MyVideoAd.RequestAd(AdType.Video, MyAppId, MyAdUnitId);
}
private void MyVideoAd_ErrorOccurred(object sender, AdErrorEventArgs e) {
String errrorMessage = e.ErrorMessage;
String errorCode = e.ErrorCode;
}
private void showInterstitial(object sender, TappedRoutedEventArgs e) {
MyVideoAd.Show();
}
}
When I execute the application, a few seconds after the MyVideoAd_ErrorOccurred method is launched with the values of errorMessage and errorCode as I've said. That happens on my Windows 10 mobile device and in the Desktop machine execution. The codes of adUnit and application id are the provided in the Microsoft page for tests.
I hope that you can help me.
For UWP app, please install Microsoft Universal Ad Client SDK and use AdMediatorControl.
References:
Install the Universal Ad Client SDK
Add and use the ad mediator control
Check my sample: https://github.com/Myfreedom614/UWP-Samples/tree/master/AdClientUWPApp
Be sure to have these 3 Capabilities defined inside your manifest:
<Capabilities>
...
<Capability Name="internetClient"/>
<Capability Name="internetClientServer"/>
<Capability Name="privateNetworkClientServer"/>
...
</Capabilities>
The video hasn't finished loading. you need to give it enough time for that. also you need to make sure it is loaded before calling it with.
if ((InterstitialAdState.Ready) == (MyVideoAd.State))
{
MyVideoAd.Show();
}
I just play a little bit with signalR. My application has only one simple hub which is stored in an ASP.NET Application and I wrote a WPF client, which interacts via the hubconnection and the created proxy with the ASP.NET Application. Everything works fine on my local PC. I deployed the ASP.NET Application on IIS.
Now I am getting to the point...
When I type the following into my browser on my own PC (pcthi-and)
http://pcthi-and:8080/signalr/hubs
I'll get what I want
When I type the same url into a browser of another pc I'll get the same response and everything looks fine.
But my Application only works on my pc and not on the other one. When I start the hubconnection on the other pc I don't get a connectionId.
I tried to change the url to my IP-Address without effect.
Browser call to hub works but the Application doesn't work.
The call looks like this:
private bool tryToConnectToCoffeService()
{
try
{
this.hubConnection = new HubConnection(ConfigurationManager.ConnectionStrings["coffeeConnection"].ConnectionString);
this.hubConnection.Credentials = CredentialCache.DefaultNetworkCredentials;
this.coffeeService = this.hubConnection.CreateHubProxy("coffee");
this.hubConnection.Start();
if (string.IsNullOrEmpty(hubConnection.ConnectionId))
{
return false;
}
return true;
}
catch(Exception ex)
{
return false;
}
}
The Global.asax:
public class Global : System.Web.HttpApplication
{
protected void Application_Start(object sender, EventArgs e)
{
RouteTable.Routes.MapHubs();
}
The hub like this
[HubName("coffee")]
public class CoffeeHub : Hub
{
My Hub Connection String is this:
"http://pcthi-and:8080/"
Or:
"http://My-Current-IP-Address:8080/"
I use SignalR 1.0 rc2.
Does anyone have an idea? Thanks for helping.
Cheers
Frank
I think you need to change
hubConnection.Start();
to
hubConnection.Start().Wait();
If you are running .NET 4.5 you could make the tryToConnectToCoffeService method async and then await when you start the hub connection.
await hubConnection.Start();
It likely works today on localhost because the client can finish connecting before if (string.IsNullOrEmpty(hubConnection.ConnectionId)) executes.
It is probably taking longer to connect from another machine which exposes the race condition present when you don't wait for HubConnection.Start() to complete.