How I can see Signalr Forever-Frame messages in Fiddler?
I swich on Stream in Fiddler, but don't see Forever-Frame messages from my server to client, how to see it in Fiddler?
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When speaking from a conceptual point of view, is it standard practice to mix WebSockets and HTTP requests when making a chat application (or any application that requires real-time communication between devices)?
Imagine a scenario with a client and a server in a chat app. What would be the best approach for connecting and sending data between the client and the server? Would it be using sockets for both sending and receiving or HTTP requests for sending (so the client would get a response and then know if the message was received), and then using WebSocket for only receiving new messages?
No this is not standard practice.
If you need real-time communication between client and server you normally just use a websocket connection and keep that one open. The client can send messages to the server and receive messages through the same connection.
Using HTTP requests for sending messages to the server and receiving new messages via websocket seems odd and just adds unnecessary complexity.
Now if your server has some endpoints to subscribe for real-time data e.g. a chat room and endpoints for getting information you don't necessary want to subscribe to e.g. information about a certain user, than you can use the appropriate protocol for each endpoint
My requirement is if a browser sends the request to ServerBootStrap then the ServerBootStrap creates BootStrap (Client) and that client connects with a proxy server.
The problem here is to connect with Proxy Server we need to send first HTTP CONNECT method to open a tunnel from Proxy and BootStrap (Client) and then whatever request comes from Browser to Server, the server will send BootStrap(client) and all the communication should happen.
This will look like
Browser ->ServerBootStrap(Server)->BootStrap(Client)->ProxyServer(HTTP2)
Can somebody tell me how do I implement this for Http2?
How do I send Http CONNECT from a Handler for the First time while Client instantiating and If CONNECT gets 200OK from Proxy Server I will to remove Handler from channel pipeline?
Can we explicitly call any HTTP CONNECT request while adding a handler in Pipeline and getting the response to check the status?
--Can somebody answer ?
As the title explains, I want to see the http requests that are sent by my android app client to my Jersey Web service.
Also, I'm using
https://github.com/kevinsawicki/http-request
class for sending the requests, but I'm not sure if they are SSL encrypted. Can I see if they are encrypted by looking at the http requests that arrive at my Web service?
If you have access to the server on which your web service is running, you can use Wireshark : https://www.wireshark.org/
This will trace and decode the tcp/ip protocol for you, and indeed show you if it's encrypted under SSL.
Assuming you own the server, and have full access, you can also install the Private Key from your server into Wireshark, and it will then show you decoded SSL traffic.
In one of our solutions (pure messaging, no orchestrations), we receive a message on a request response receive location, using the MLLP adaptor and HL7v2x pipelines. The receive pipeline generates the response message and publishes it, which due to promoted properties gets routed through the send pipeline of the request/response receive port, back to the client.
We then have a two way send port that subscribes to the received message, uses a map to translate the message and send to a request response WCF receive port that is also on the same BizTalk machine. It sounds odd but we have clients that send their data via web services, and some that send via HL7v2 MLLP so that's why we're doing it this way.
The WCF request response receive port also generates a response by publishing a message and promoting the EpmRRCorrelationToken, CorrelationToken, ReqRespTransmitPipelineID, RouteDirectToTP, IsRequestResponse and ReceivePipelineResponseConfig properties, which causes the response to get routed through the send pipeline as a SOAP response.
We subscribe to the messages received on the WCF request response port, and drop them to a file.
Technically it works. The client using MLLP gets an acknowledgement response. The client using WCF SOAP web services get a SOAP response. The file system contains all messages that were sent.
So if I think about the messages published I imagine there is the HL7v2 message received over MLLP (A), and the HL7v2 response (B). Then the translated messages received by the WCF receive port (C), and it's response (D). Plus the WCF response that was received by the WCF send port (E), as shown in the attached .
The problem is that we're getting suspended messages in BizTalk such as "A response message for two-way receive port "xxx" is being suspended as the messaging engine could not correlate the response to an existing request message. This usually happens when the host process has been recycled." In this case, the service is the MLLP receive port, and there are 3 suspended messages - the HL7v2 ACK (B), and 2 copies of the response message for the WCF service (D) and (E) I suspect.
We're also seeing errors "The instance completed without consuming all of its messages. The instance and its unconsumed messages have been suspended."
With MLLP adapter Its possible that the Receive MLLP is timing out. There are few things you can look at:
The Persistent Connection Property should be set to True with Receive Timeout Set to 0
Since you are calling a WCF service for published HL7 message which come via MLLP, I am wondering if you are dealing with WCF service response. If not then it will cause these error messages. You need to subscribe to the service response or use a one way send port.
Relook at your design and need of calling a local WCF service when a message is received via MLLP to send the message to a FILE location. You can do this directly skipping all the WCF route in between.
I am trying to see the keepalive events sent from a Signalr server with a Server-Sent event transportation. I am using Fiddler to see it and I have the "Stream" Fiddler feature button enabled...So far I do not see any of them... I am using a Javascript client for that which connects properly with that transport.
Why I don't any HTTP messages on Fiddler sent?
Taking always on consideration that Fiddler is watching HTTP requests/responses where the SignalR server is located...
Thx
The end of the following blog post shows how to use Fiddler's COMETPeek feature to inspect ongoing server-sent events responses: http://stevenhollidge.blogspot.com/2013/07/c-client-for-server-side-event.html